修复验证码位数的bug，优化代码
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# Compiled class file
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/target/
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*.class
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!.mvn/wrapper/maven-wrapper.jar
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# Log file
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### STS ###
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*.log
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.apt_generated
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.classpath
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.factorypath
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.project
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.settings
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.springBeans
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.sts4-cache
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# BlueJ files
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### IntelliJ IDEA ###
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*.ctxt
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.idea
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*.iws
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*.iml
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*.ipr
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# Mobile Tools for Java (J2ME)
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### NetBeans ###
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.mtj.tmp/
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/nbproject/private/
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/build/
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# Package Files #
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/nbbuild/
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*.jar
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/dist/
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*.war
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/nbdist/
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*.ear
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/.nb-gradle/
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*.zip
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*.tar.gz
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*.rar
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# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
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hs_err_pid*
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/bin
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/target
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@ -0,0 +1,6 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<project version="4">
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<component name="Encoding">
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<file url="file://$PROJECT_DIR$" charset="UTF-8" />
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</component>
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</project>
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@ -0,0 +1,13 @@
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<component name="libraryTable">
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<library name="Maven: junit:junit:4.7">
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<CLASSES>
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<root url="jar://$USER_HOME$/.m2/repository/junit/junit/4.7/junit-4.7.jar!/" />
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</CLASSES>
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<JAVADOC>
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<root url="jar://$USER_HOME$/.m2/repository/junit/junit/4.7/junit-4.7-javadoc.jar!/" />
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</JAVADOC>
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<SOURCES>
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<root url="jar://$USER_HOME$/.m2/repository/junit/junit/4.7/junit-4.7-sources.jar!/" />
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</SOURCES>
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</library>
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</component>
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@ -0,0 +1,124 @@
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<?xml version="1.0" encoding="UTF-8"?>
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||||||
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<project version="4">
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||||||
|
<component name="Palette2">
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||||||
|
<group name="Swing">
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||||||
|
<item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
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<default-constraints vsize-policy="1" hsize-policy="6" anchor="0" fill="1" />
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</item>
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<item class="com.intellij.uiDesigner.VSpacer" tooltip-text="Vertical Spacer" icon="/com/intellij/uiDesigner/icons/vspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
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<default-constraints vsize-policy="6" hsize-policy="1" anchor="0" fill="2" />
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</item>
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<item class="javax.swing.JPanel" icon="/com/intellij/uiDesigner/icons/panel.png" removable="false" auto-create-binding="false" can-attach-label="false">
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|
<default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3" />
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</item>
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<item class="javax.swing.JScrollPane" icon="/com/intellij/uiDesigner/icons/scrollPane.png" removable="false" auto-create-binding="false" can-attach-label="true">
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<default-constraints vsize-policy="7" hsize-policy="7" anchor="0" fill="3" />
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</item>
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<item class="javax.swing.JButton" icon="/com/intellij/uiDesigner/icons/button.png" removable="false" auto-create-binding="true" can-attach-label="false">
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<default-constraints vsize-policy="0" hsize-policy="3" anchor="0" fill="1" />
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<initial-values>
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<property name="text" value="Button" />
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</initial-values>
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</item>
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<item class="javax.swing.JRadioButton" icon="/com/intellij/uiDesigner/icons/radioButton.png" removable="false" auto-create-binding="true" can-attach-label="false">
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<default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
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<initial-values>
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<property name="text" value="RadioButton" />
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</initial-values>
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</item>
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<item class="javax.swing.JCheckBox" icon="/com/intellij/uiDesigner/icons/checkBox.png" removable="false" auto-create-binding="true" can-attach-label="false">
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<default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
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<initial-values>
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<property name="text" value="CheckBox" />
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</initial-values>
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</item>
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<item class="javax.swing.JLabel" icon="/com/intellij/uiDesigner/icons/label.png" removable="false" auto-create-binding="false" can-attach-label="false">
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<default-constraints vsize-policy="0" hsize-policy="0" anchor="8" fill="0" />
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<initial-values>
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<property name="text" value="Label" />
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</initial-values>
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|
</item>
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|
<item class="javax.swing.JTextField" icon="/com/intellij/uiDesigner/icons/textField.png" removable="false" auto-create-binding="true" can-attach-label="true">
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<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
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<preferred-size width="150" height="-1" />
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</default-constraints>
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</item>
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<item class="javax.swing.JPasswordField" icon="/com/intellij/uiDesigner/icons/passwordField.png" removable="false" auto-create-binding="true" can-attach-label="true">
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<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
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<preferred-size width="150" height="-1" />
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</default-constraints>
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</item>
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<item class="javax.swing.JFormattedTextField" icon="/com/intellij/uiDesigner/icons/formattedTextField.png" removable="false" auto-create-binding="true" can-attach-label="true">
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<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
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<preferred-size width="150" height="-1" />
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</default-constraints>
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</item>
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<item class="javax.swing.JTextArea" icon="/com/intellij/uiDesigner/icons/textArea.png" removable="false" auto-create-binding="true" can-attach-label="true">
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<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
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<preferred-size width="150" height="50" />
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</default-constraints>
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</item>
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<item class="javax.swing.JTextPane" icon="/com/intellij/uiDesigner/icons/textPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
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||||||
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<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
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<preferred-size width="150" height="50" />
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</default-constraints>
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</item>
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<item class="javax.swing.JEditorPane" icon="/com/intellij/uiDesigner/icons/editorPane.png" removable="false" auto-create-binding="true" can-attach-label="true">
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||||||
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<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
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<preferred-size width="150" height="50" />
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</default-constraints>
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</item>
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<item class="javax.swing.JComboBox" icon="/com/intellij/uiDesigner/icons/comboBox.png" removable="false" auto-create-binding="true" can-attach-label="true">
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||||||
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<default-constraints vsize-policy="0" hsize-policy="2" anchor="8" fill="1" />
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||||||
|
</item>
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||||||
|
<item class="javax.swing.JTable" icon="/com/intellij/uiDesigner/icons/table.png" removable="false" auto-create-binding="true" can-attach-label="false">
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||||||
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<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
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<preferred-size width="150" height="50" />
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||||||
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</default-constraints>
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||||||
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</item>
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||||||
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<item class="javax.swing.JList" icon="/com/intellij/uiDesigner/icons/list.png" removable="false" auto-create-binding="true" can-attach-label="false">
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||||||
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<default-constraints vsize-policy="6" hsize-policy="2" anchor="0" fill="3">
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<preferred-size width="150" height="50" />
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</default-constraints>
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</item>
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<item class="javax.swing.JTree" icon="/com/intellij/uiDesigner/icons/tree.png" removable="false" auto-create-binding="true" can-attach-label="false">
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||||||
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<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
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<preferred-size width="150" height="50" />
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</default-constraints>
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</item>
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<item class="javax.swing.JTabbedPane" icon="/com/intellij/uiDesigner/icons/tabbedPane.png" removable="false" auto-create-binding="true" can-attach-label="false">
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<default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
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<preferred-size width="200" height="200" />
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</default-constraints>
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</item>
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<item class="javax.swing.JSplitPane" icon="/com/intellij/uiDesigner/icons/splitPane.png" removable="false" auto-create-binding="false" can-attach-label="false">
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||||||
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<default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
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<preferred-size width="200" height="200" />
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</default-constraints>
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</item>
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<item class="javax.swing.JSpinner" icon="/com/intellij/uiDesigner/icons/spinner.png" removable="false" auto-create-binding="true" can-attach-label="true">
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<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
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</item>
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<item class="javax.swing.JSlider" icon="/com/intellij/uiDesigner/icons/slider.png" removable="false" auto-create-binding="true" can-attach-label="false">
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<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
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</item>
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<item class="javax.swing.JSeparator" icon="/com/intellij/uiDesigner/icons/separator.png" removable="false" auto-create-binding="false" can-attach-label="false">
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||||||
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<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3" />
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</item>
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||||||
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<item class="javax.swing.JProgressBar" icon="/com/intellij/uiDesigner/icons/progressbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
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||||||
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<default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1" />
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</item>
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||||||
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<item class="javax.swing.JToolBar" icon="/com/intellij/uiDesigner/icons/toolbar.png" removable="false" auto-create-binding="false" can-attach-label="false">
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||||||
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<default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1">
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||||||
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<preferred-size width="-1" height="20" />
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||||||
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</default-constraints>
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||||||
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</item>
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<item class="javax.swing.JToolBar$Separator" icon="/com/intellij/uiDesigner/icons/toolbarSeparator.png" removable="false" auto-create-binding="false" can-attach-label="false">
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||||||
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<default-constraints vsize-policy="0" hsize-policy="0" anchor="0" fill="1" />
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</item>
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<item class="javax.swing.JScrollBar" icon="/com/intellij/uiDesigner/icons/scrollbar.png" removable="false" auto-create-binding="true" can-attach-label="false">
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||||||
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<default-constraints vsize-policy="6" hsize-policy="0" anchor="0" fill="2" />
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</item>
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</group>
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</component>
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</project>
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@ -5,10 +5,12 @@
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<output-test url="file://$MODULE_DIR$/target/test-classes" />
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<output-test url="file://$MODULE_DIR$/target/test-classes" />
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<content url="file://$MODULE_DIR$">
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
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<sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
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<sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
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<excludeFolder url="file://$MODULE_DIR$/target" />
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<excludeFolder url="file://$MODULE_DIR$/target" />
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</content>
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</content>
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<orderEntry type="inheritedJdk" />
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<orderEntry type="inheritedJdk" />
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<orderEntry type="sourceFolder" forTests="false" />
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<orderEntry type="sourceFolder" forTests="false" />
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<orderEntry type="library" scope="PROVIDED" name="Maven: javax.servlet:javax.servlet-api:3.1.0" level="project" />
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<orderEntry type="library" scope="PROVIDED" name="Maven: javax.servlet:javax.servlet-api:3.1.0" level="project" />
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<orderEntry type="library" scope="TEST" name="Maven: junit:junit:4.7" level="project" />
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</component>
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</component>
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</module>
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</module>
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129
pom.xml
129
pom.xml
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<modelVersion>4.0.0</modelVersion>
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<groupId>EasyCaptcha</groupId>
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<groupId>com.github.whvcse</groupId>
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<artifactId>EasyCaptcha</artifactId>
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<artifactId>EasyCaptcha</artifactId>
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<version>1.1.0-RELEASE</version>
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<version>1.1.0-RELEASE</version>
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<packaging>jar</packaging>
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<name>EasyCaptcha</name>
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<description>Java web图形验证码，支持gif验证码。</description>
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<url>https://github.com/whvcse/EasyCaptcha</url>
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<licenses>
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<license>
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<name>The Apache Software License, Version 2.0</name>
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<url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
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<distribution>repo</distribution>
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</license>
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</licenses>
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<parent>
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<groupId>org.sonatype.oss</groupId>
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<artifactId>oss-parent</artifactId>
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<version>7</version>
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</parent>
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<dependencies>
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<!-- j2ee环境 -->
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<dependency>
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<groupId>javax.servlet</groupId>
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<artifactId>javax.servlet-api</artifactId>
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<version>3.1.0</version>
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<scope>provided</scope>
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</dependency>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.7</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<build>
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<build>
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<plugins>
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<plugins>
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<plugin>
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<plugin>
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@ -16,15 +54,84 @@
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</plugin>
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</plugin>
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</plugins>
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</plugins>
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</build>
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</build>
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<name>EasyCaptcha</name>
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<dependencies>
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<scm>
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||||||
<!-- j2ee环境 -->
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<url>https://github.com/whvcse/EasyCaptcha</url>
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<dependency>
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<connection>scm:git:git@github.com:whvcse/EasyCaptcha</connection>
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<groupId>javax.servlet</groupId>
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<developerConnection>scm:git:git@github.com:whvcse/EasyCaptcha</developerConnection>
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<artifactId>javax.servlet-api</artifactId>
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<tag>HEAD</tag>
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<version>3.1.0</version>
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</scm>
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<scope>provided</scope>
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</dependency>
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<developers>
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</dependencies>
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<developer>
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<name>whvcse</name>
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<email>whvcse@foxmail.com</email>
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||||||
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<url>https://github.com/whvcse</url>
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</developer>
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</developers>
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<distributionManagement>
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<snapshotRepository>
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<id>oss</id>
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<name>OSS Snapshots Repository</name>
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||||||
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<url>https://oss.sonatype.org/content/repositories/snapshots/</url>
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</snapshotRepository>
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<repository>
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<id>oss</id>
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||||||
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<name>OSS Staging Repository</name>
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||||||
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<url>https://oss.sonatype.org/service/local/staging/deploy/maven2/</url>
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||||||
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</repository>
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</distributionManagement>
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<profiles>
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<profile>
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||||||
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<id>release</id>
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<build>
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||||||
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<plugins>
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||||||
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<!-- Source -->
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||||||
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<plugin>
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||||||
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<groupId>org.apache.maven.plugins</groupId>
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||||||
|
<artifactId>maven-source-plugin</artifactId>
|
||||||
|
<version>2.2.1</version>
|
||||||
|
<executions>
|
||||||
|
<execution>
|
||||||
|
<phase>package</phase>
|
||||||
|
<goals>
|
||||||
|
<goal>jar-no-fork</goal>
|
||||||
|
</goals>
|
||||||
|
</execution>
|
||||||
|
</executions>
|
||||||
|
</plugin>
|
||||||
|
<!-- Javadoc -->
|
||||||
|
<plugin>
|
||||||
|
<groupId>org.apache.maven.plugins</groupId>
|
||||||
|
<artifactId>maven-javadoc-plugin</artifactId>
|
||||||
|
<version>2.9.1</version>
|
||||||
|
<executions>
|
||||||
|
<execution>
|
||||||
|
<phase>package</phase>
|
||||||
|
<goals>
|
||||||
|
<goal>jar</goal>
|
||||||
|
</goals>
|
||||||
|
</execution>
|
||||||
|
</executions>
|
||||||
|
</plugin>
|
||||||
|
<plugin>
|
||||||
|
<groupId>org.apache.maven.plugins</groupId>
|
||||||
|
<artifactId>maven-gpg-plugin</artifactId>
|
||||||
|
<version>1.5</version>
|
||||||
|
<executions>
|
||||||
|
<execution>
|
||||||
|
<id>sign-artifacts</id>
|
||||||
|
<phase>verify</phase>
|
||||||
|
<goals>
|
||||||
|
<goal>sign</goal>
|
||||||
|
</goals>
|
||||||
|
</execution>
|
||||||
|
</executions>
|
||||||
|
</plugin>
|
||||||
|
</plugins>
|
||||||
|
</build>
|
||||||
|
</profile>
|
||||||
|
</profiles>
|
||||||
</project>
|
</project>
|
||||||
|
|
@ -5,24 +5,20 @@ import java.awt.Font;
|
||||||
import java.io.OutputStream;
|
import java.io.OutputStream;
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* <p>
|
* 验证码抽象类
|
||||||
* 验证码抽象类,暂时不支持中文
|
* Created by 王帆 on 2018-07-27 上午 10:08.
|
||||||
* </p>
|
|
||||||
*
|
|
||||||
* @author: wuhongjun
|
|
||||||
* @version:1.0
|
|
||||||
*/
|
*/
|
||||||
public abstract class Captcha extends Randoms {
|
public abstract class Captcha extends Randoms {
|
||||||
protected Font font = new Font("Verdana", Font.ITALIC | Font.BOLD, 28); // 字体
|
protected Font font = new Font("Verdana", Font.ITALIC | Font.BOLD, 28); // 字体
|
||||||
protected int len = 5; // 验证码随机字符长度
|
protected int len = 5; // 验证码随机字符长度
|
||||||
protected int width = 150; // 验证码显示跨度
|
protected int width = 150; // 验证码显示宽度
|
||||||
protected int height = 40; // 验证码显示高度
|
protected int height = 40; // 验证码显示高度
|
||||||
private String chars = null; // 随机字符串
|
private String chars = null; // 当前验证码
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 生成随机字符数组
|
* 生成随机验证码
|
||||||
*
|
*
|
||||||
* @return 字符数组
|
* @return 验证码字符数组
|
||||||
*/
|
*/
|
||||||
protected char[] alphas() {
|
protected char[] alphas() {
|
||||||
char[] cs = new char[len];
|
char[] cs = new char[len];
|
||||||
|
|
@ -33,6 +29,61 @@ public abstract class Captcha extends Randoms {
|
||||||
return cs;
|
return cs;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 给定范围获得随机颜色
|
||||||
|
*
|
||||||
|
* @param fc 0-255
|
||||||
|
* @param bc 0-255
|
||||||
|
* @return 随机颜色
|
||||||
|
*/
|
||||||
|
protected Color color(int fc, int bc) {
|
||||||
|
if (fc > 255)
|
||||||
|
fc = 255;
|
||||||
|
if (bc > 255)
|
||||||
|
bc = 255;
|
||||||
|
int r = fc + num(bc - fc);
|
||||||
|
int g = fc + num(bc - fc);
|
||||||
|
int b = fc + num(bc - fc);
|
||||||
|
return new Color(r, g, b);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 验证码输出,抽象方法，由子类实现
|
||||||
|
*
|
||||||
|
* @param os 输出流
|
||||||
|
* @return 是否成功
|
||||||
|
*/
|
||||||
|
public abstract boolean out(OutputStream os);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 获取当前的验证码
|
||||||
|
*
|
||||||
|
* @return 字符串
|
||||||
|
*/
|
||||||
|
public String text() {
|
||||||
|
checkAlpha();
|
||||||
|
return chars;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 获取当前验证码的字符数组
|
||||||
|
*
|
||||||
|
* @return 字符数组
|
||||||
|
*/
|
||||||
|
public char[] textChar() {
|
||||||
|
checkAlpha();
|
||||||
|
return chars.toCharArray();
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 检查验证码是否生成，没有这立即生成
|
||||||
|
*/
|
||||||
|
public void checkAlpha() {
|
||||||
|
if (chars == null) {
|
||||||
|
alphas(); // 生成验证码
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
public Font getFont() {
|
public Font getFont() {
|
||||||
return font;
|
return font;
|
||||||
}
|
}
|
||||||
|
|
@ -64,41 +115,4 @@ public abstract class Captcha extends Randoms {
|
||||||
public void setHeight(int height) {
|
public void setHeight(int height) {
|
||||||
this.height = height;
|
this.height = height;
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
|
||||||
* 给定范围获得随机颜色
|
|
||||||
*
|
|
||||||
* @return Color 随机颜色
|
|
||||||
*/
|
|
||||||
protected Color color(int fc, int bc) {
|
|
||||||
if (fc > 255)
|
|
||||||
fc = 255;
|
|
||||||
if (bc > 255)
|
|
||||||
bc = 255;
|
|
||||||
int r = fc + num(bc - fc);
|
|
||||||
int g = fc + num(bc - fc);
|
|
||||||
int b = fc + num(bc - fc);
|
|
||||||
return new Color(r, g, b);
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* 验证码输出,抽象方法，由子类实现
|
|
||||||
*
|
|
||||||
* @param os
|
|
||||||
* 输出流
|
|
||||||
*/
|
|
||||||
public abstract void out(OutputStream os);
|
|
||||||
|
|
||||||
/**
|
|
||||||
* 获取随机字符串
|
|
||||||
*
|
|
||||||
* @return string
|
|
||||||
*/
|
|
||||||
public String text() {
|
|
||||||
return chars;
|
|
||||||
}
|
|
||||||
|
|
||||||
public char[] textChar() {
|
|
||||||
return chars.toCharArray();
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
|
|
@ -4,40 +4,20 @@ import java.io.IOException;
|
||||||
import java.io.OutputStream;
|
import java.io.OutputStream;
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* @author: wuhongjun
|
*
|
||||||
* @version:1.0
|
|
||||||
*/
|
*/
|
||||||
public class Encoder
|
public class Encoder {
|
||||||
{
|
|
||||||
private static final int EOF = -1;
|
private static final int EOF = -1;
|
||||||
|
// 图片的宽高
|
||||||
private int imgW, imgH;
|
private int imgW, imgH;
|
||||||
private byte[] pixAry;
|
private byte[] pixAry;
|
||||||
private int initCodeSize;
|
private int initCodeSize; // 验证码位数
|
||||||
private int remaining;
|
private int remaining; // 剩余数量
|
||||||
private int curPixel;
|
private int curPixel; // 像素
|
||||||
|
|
||||||
// GIFCOMPR.C - GIF Image compression routines
|
|
||||||
//
|
|
||||||
// Lempel-Ziv compression based on 'compress'. GIF modifications by
|
|
||||||
// David Rowley (mgardi@watdcsu.waterloo.edu)
|
|
||||||
|
|
||||||
// General DEFINEs
|
|
||||||
|
|
||||||
static final int BITS = 12;
|
static final int BITS = 12;
|
||||||
|
|
||||||
static final int HSIZE = 5003; // 80% occupancy
|
static final int HSIZE = 5003; // 80% 占用率
|
||||||
|
|
||||||
// GIF Image compression - modified 'compress'
|
|
||||||
//
|
|
||||||
// Based on: compress.c - File compression ala IEEE Computer, June 1984.
|
|
||||||
//
|
|
||||||
// By Authors: Spencer W. Thomas (decvax!harpo!utah-cs!utah-gr!thomas)
|
|
||||||
// Jim McKie (decvax!mcvax!jim)
|
|
||||||
// Steve Davies (decvax!vax135!petsd!peora!srd)
|
|
||||||
// Ken Turkowski (decvax!decwrl!turtlevax!ken)
|
|
||||||
// James A. Woods (decvax!ihnp4!ames!jaw)
|
|
||||||
// Joe Orost (decvax!vax135!petsd!joe)
|
|
||||||
|
|
||||||
int n_bits; // number of bits/code
|
int n_bits; // number of bits/code
|
||||||
int maxbits = BITS; // user settable max # bits/code
|
int maxbits = BITS; // user settable max # bits/code
|
||||||
|
|
@ -184,7 +164,8 @@ public class Encoder
|
||||||
|
|
||||||
output(ClearCode, outs);
|
output(ClearCode, outs);
|
||||||
|
|
||||||
outer_loop : while ((c = nextPixel()) != EOF) {
|
outer_loop:
|
||||||
|
while ((c = nextPixel()) != EOF) {
|
||||||
fcode = (c << maxbits) + ent;
|
fcode = (c << maxbits) + ent;
|
||||||
i = (c << hshift) ^ ent; // xor hashing
|
i = (c << hshift) ^ ent; // xor hashing
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -7,98 +7,87 @@ import java.awt.Graphics2D;
|
||||||
import java.awt.image.BufferedImage;
|
import java.awt.image.BufferedImage;
|
||||||
import java.io.IOException;
|
import java.io.IOException;
|
||||||
import java.io.OutputStream;
|
import java.io.OutputStream;
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* <p>Gif验证码类</p>
|
* Gif验证码类
|
||||||
*
|
* Created by 王帆 on 2018-07-27 上午 10:08.
|
||||||
* @author: wuhongjun
|
|
||||||
* @version:1.0
|
|
||||||
*/
|
*/
|
||||||
public class GifCaptcha extends Captcha
|
public class GifCaptcha extends Captcha {
|
||||||
{
|
|
||||||
public GifCaptcha()
|
public GifCaptcha() {
|
||||||
{
|
|
||||||
}
|
}
|
||||||
|
|
||||||
public GifCaptcha(int width, int height) {
|
public GifCaptcha(int width, int height) {
|
||||||
this.width = width;
|
setWidth(width);
|
||||||
this.height = height;
|
setHeight(height);
|
||||||
alphas();
|
|
||||||
}
|
}
|
||||||
|
|
||||||
public GifCaptcha(int width, int height, int len) {
|
public GifCaptcha(int width, int height, int len) {
|
||||||
this(width, height);
|
this(width, height);
|
||||||
this.len = len;
|
setLen(len);
|
||||||
}
|
}
|
||||||
|
|
||||||
public GifCaptcha(int width,int height,int len,Font font)
|
public GifCaptcha(int width, int height, int len, Font font) {
|
||||||
{
|
|
||||||
this(width, height, len);
|
this(width, height, len);
|
||||||
this.font = font;
|
setFont(font);
|
||||||
}
|
}
|
||||||
|
|
||||||
@Override
|
@Override
|
||||||
public void out(OutputStream os)
|
public boolean out(OutputStream os) {
|
||||||
{
|
checkAlpha();
|
||||||
try
|
boolean ok = false;
|
||||||
{
|
try {
|
||||||
GifEncoder gifEncoder = new GifEncoder(); // gif编码类，这个利用了洋人写的编码类，所有类都在附件中
|
char[] rands = textChar(); // 获取验证码数组
|
||||||
//生成字符
|
GifEncoder gifEncoder = new GifEncoder();
|
||||||
gifEncoder.start(os);
|
gifEncoder.start(os);
|
||||||
gifEncoder.setQuality(180);
|
gifEncoder.setQuality(180);
|
||||||
gifEncoder.setDelay(100);
|
gifEncoder.setDelay(100);
|
||||||
gifEncoder.setRepeat(0);
|
gifEncoder.setRepeat(0);
|
||||||
BufferedImage frame;
|
BufferedImage frame;
|
||||||
char[] rands = textChar();
|
|
||||||
Color fontcolor[] = new Color[len];
|
Color fontcolor[] = new Color[len];
|
||||||
for(int i=0;i<len;i++)
|
for (int i = 0; i < len; i++) {
|
||||||
{
|
|
||||||
fontcolor[i] = new Color(20 + num(110), 20 + num(110), 20 + num(110));
|
fontcolor[i] = new Color(20 + num(110), 20 + num(110), 20 + num(110));
|
||||||
}
|
}
|
||||||
for(int i=0;i<len;i++)
|
for (int i = 0; i < len; i++) {
|
||||||
{
|
|
||||||
frame = graphicsImage(fontcolor, rands, i);
|
frame = graphicsImage(fontcolor, rands, i);
|
||||||
gifEncoder.addFrame(frame);
|
gifEncoder.addFrame(frame);
|
||||||
frame.flush();
|
frame.flush();
|
||||||
}
|
}
|
||||||
gifEncoder.finish();
|
gifEncoder.finish();
|
||||||
}finally
|
ok = true;
|
||||||
{
|
} finally {
|
||||||
try {
|
try {
|
||||||
os.close();
|
os.close();
|
||||||
} catch (IOException e) {
|
} catch (IOException e) {
|
||||||
e.printStackTrace();
|
e.printStackTrace();
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
return ok;
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 画随机码图
|
* 画随机码图
|
||||||
|
*
|
||||||
* @param fontcolor 随机字体颜色
|
* @param fontcolor 随机字体颜色
|
||||||
* @param strs 字符数组
|
* @param strs 字符数组
|
||||||
* @param flag 透明度使用
|
* @param flag 透明度使用
|
||||||
* @return BufferedImage
|
* @return BufferedImage
|
||||||
*/
|
*/
|
||||||
private BufferedImage graphicsImage(Color[] fontcolor,char[] strs,int flag)
|
private BufferedImage graphicsImage(Color[] fontcolor, char[] strs, int flag) {
|
||||||
{
|
|
||||||
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
|
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
|
||||||
//或得图形上下文
|
|
||||||
//Graphics2D g2d=image.createGraphics();
|
|
||||||
Graphics2D g2d = (Graphics2D) image.getGraphics();
|
Graphics2D g2d = (Graphics2D) image.getGraphics();
|
||||||
//利用指定颜色填充背景
|
g2d.setColor(Color.WHITE); // 填充背景颜色
|
||||||
g2d.setColor(Color.WHITE);
|
|
||||||
g2d.fillRect(0, 0, width, height);
|
g2d.fillRect(0, 0, width, height);
|
||||||
AlphaComposite ac3;
|
AlphaComposite ac3;
|
||||||
int h = height - ((height - font.getSize()) >> 1);
|
int h = height - ((height - font.getSize()) >> 1);
|
||||||
int w = width / len;
|
int w = width / len;
|
||||||
g2d.setFont(font);
|
g2d.setFont(font);
|
||||||
for(int i=0;i<len;i++)
|
for (int i = 0; i < len; i++) {
|
||||||
{
|
|
||||||
ac3 = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, getAlpha(flag, i));
|
ac3 = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, getAlpha(flag, i));
|
||||||
g2d.setComposite(ac3);
|
g2d.setComposite(ac3);
|
||||||
g2d.setColor(fontcolor[i]);
|
g2d.setColor(fontcolor[i]);
|
||||||
g2d.drawOval(num(width), num(height), 5 + num(10), 5 + num(10));
|
g2d.drawOval(num(width), num(height), 5 + num(10), 5 + num(10));
|
||||||
g2d.drawString(strs[i]+"", (width-(len-i)*w)+(w-font.getSize())+1, h-4);
|
g2d.drawString(String.valueOf(strs[i]), (width - (len - i) * w) + (w - font.getSize()) + 1, h - 4);
|
||||||
}
|
}
|
||||||
g2d.dispose();
|
g2d.dispose();
|
||||||
return image;
|
return image;
|
||||||
|
|
@ -106,10 +95,12 @@ public class GifCaptcha extends Captcha
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 获取透明度,从0到1,自动计算步长
|
* 获取透明度,从0到1,自动计算步长
|
||||||
* @return float 透明度
|
*
|
||||||
|
* @param i
|
||||||
|
* @param j
|
||||||
|
* @return 透明度
|
||||||
*/
|
*/
|
||||||
private float getAlpha(int i,int j)
|
private float getAlpha(int i, int j) {
|
||||||
{
|
|
||||||
int num = i + j;
|
int num = i + j;
|
||||||
float r = (float) 1 / len, s = (len + 1) * r;
|
float r = (float) 1 / len, s = (len + 1) * r;
|
||||||
return num > len ? (num * r - s) : num * r;
|
return num > len ? (num * r - s) : num * r;
|
||||||
|
|
|
||||||
|
|
@ -10,6 +10,7 @@ import java.io.IOException;
|
||||||
import java.io.OutputStream;
|
import java.io.OutputStream;
|
||||||
|
|
||||||
/**
|
/**
|
||||||
|
* Gif生成工具
|
||||||
* Class AnimatedGifEncoder - Encodes a GIF file consisting of one or
|
* Class AnimatedGifEncoder - Encodes a GIF file consisting of one or
|
||||||
* more frames.
|
* more frames.
|
||||||
* <pre>
|
* <pre>
|
||||||
|
|
@ -25,13 +26,8 @@ import java.io.OutputStream;
|
||||||
* for any purpose, however, refer to the Unisys LZW patent for restrictions
|
* for any purpose, however, refer to the Unisys LZW patent for restrictions
|
||||||
* on use of the associated Encoder class. Please forward any corrections
|
* on use of the associated Encoder class. Please forward any corrections
|
||||||
* to questions at fmsware.com.
|
* to questions at fmsware.com.
|
||||||
*
|
|
||||||
* @author wuhongjun
|
|
||||||
* @version 1.03 November 2003
|
|
||||||
*
|
|
||||||
*/
|
*/
|
||||||
public class GifEncoder
|
public class GifEncoder {
|
||||||
{
|
|
||||||
protected int width; // image size
|
protected int width; // image size
|
||||||
protected int height;
|
protected int height;
|
||||||
protected Color transparent = null; // transparent color if given
|
protected Color transparent = null; // transparent color if given
|
||||||
|
|
@ -67,6 +63,7 @@ public class GifEncoder
|
||||||
* Sets the GIF frame disposal code for the last added frame
|
* Sets the GIF frame disposal code for the last added frame
|
||||||
* and any subsequent frames. Default is 0 if no transparent
|
* and any subsequent frames. Default is 0 if no transparent
|
||||||
* color has been set, otherwise 2.
|
* color has been set, otherwise 2.
|
||||||
|
*
|
||||||
* @param code int disposal code.
|
* @param code int disposal code.
|
||||||
*/
|
*/
|
||||||
public void setDispose(int code) {
|
public void setDispose(int code) {
|
||||||
|
|
@ -322,7 +319,6 @@ public class GifEncoder
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Returns index of palette color closest to c
|
* Returns index of palette color closest to c
|
||||||
*
|
|
||||||
*/
|
*/
|
||||||
protected int findClosest(Color c) {
|
protected int findClosest(Color c) {
|
||||||
if (colorTab == null) return -1;
|
if (colorTab == null) return -1;
|
||||||
|
|
|
||||||
|
|
@ -1,13 +1,9 @@
|
||||||
package com.wf.captcha;
|
package com.wf.captcha;
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* <p></p>
|
|
||||||
*
|
*
|
||||||
* @author: wuhongjun
|
|
||||||
* @version:1.0
|
|
||||||
*/
|
*/
|
||||||
public class Quant
|
public class Quant {
|
||||||
{
|
|
||||||
protected static final int netsize = 256; /* number of colours used */
|
protected static final int netsize = 256; /* number of colours used */
|
||||||
|
|
||||||
/* four primes near 500 - assume no image has a length so large */
|
/* four primes near 500 - assume no image has a length so large */
|
||||||
|
|
@ -320,6 +316,7 @@ public class Quant
|
||||||
}
|
}
|
||||||
return (best);
|
return (best);
|
||||||
}
|
}
|
||||||
|
|
||||||
public byte[] process() {
|
public byte[] process() {
|
||||||
learn();
|
learn();
|
||||||
unbiasnet();
|
unbiasnet();
|
||||||
|
|
|
||||||
|
|
@ -3,41 +3,64 @@ package com.wf.captcha;
|
||||||
import java.util.Random;
|
import java.util.Random;
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* <p>随机工具类</p>
|
* 随机数工具类
|
||||||
*
|
* Created by 王帆 on 2018-07-27 上午 10:08.
|
||||||
* @author: wuhongjun
|
|
||||||
* @version:1.0
|
|
||||||
*/
|
*/
|
||||||
public class Randoms
|
public class Randoms {
|
||||||
{
|
|
||||||
private static final Random RANDOM = new Random();
|
private static final Random RANDOM = new Random();
|
||||||
// 定义验证码字符.去除了O和I等容易混淆的字母
|
// 定义验证码字符.去除了O和I等容易混淆的字母
|
||||||
public static final char ALPHA[]={'A','B','C','D','E','F','G','H','G','K','M','N','P','Q','R','S','T','U','V','W','X','Y','Z'
|
public static final char ALPHA[] = {'2', '3', '4', '5', '6', '7', '8', '9',
|
||||||
,'a','b','c','d','e','f','g','h','i','j','k','m','n','p','q','r','s','t','u','v','w','x','y','z','2','3','4','5','6','7','8','9'};
|
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'G', 'K', 'M', 'N', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
|
||||||
|
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'm', 'n', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'};
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 产生两个数之间的随机数
|
* 产生两个数之间的随机数
|
||||||
* @param min 小数
|
*
|
||||||
* @param max 比min大的数
|
* @param min 最小值
|
||||||
* @return int 随机数字
|
* @param max 最大值
|
||||||
|
* @return 随机数
|
||||||
*/
|
*/
|
||||||
public static int num(int min, int max)
|
public static int num(int min, int max) {
|
||||||
{
|
|
||||||
return min + RANDOM.nextInt(max - min);
|
return min + RANDOM.nextInt(max - min);
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 产生0--num的随机数,不包括num
|
* 产生0-num的随机数,不包括num
|
||||||
* @param num 数字
|
*
|
||||||
* @return int 随机数字
|
* @param num 最大值
|
||||||
|
* @return 随机数
|
||||||
*/
|
*/
|
||||||
public static int num(int num)
|
public static int num(int num) {
|
||||||
{
|
|
||||||
return RANDOM.nextInt(num);
|
return RANDOM.nextInt(num);
|
||||||
}
|
}
|
||||||
|
|
||||||
public static char alpha()
|
/**
|
||||||
{
|
* 返回ALPHA中的随机字符
|
||||||
return ALPHA[num(0, ALPHA.length)];
|
*
|
||||||
|
* @return 随机字符
|
||||||
|
*/
|
||||||
|
public static char alpha() {
|
||||||
|
return ALPHA[num(ALPHA.length)];
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 返回ALPHA中第0位到第num位的随机字符
|
||||||
|
*
|
||||||
|
* @param num 到第几位结束
|
||||||
|
* @return 随机字符
|
||||||
|
*/
|
||||||
|
public static char alpha(int num) {
|
||||||
|
return ALPHA[num(num)];
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 返回ALPHA中第min位到第max位的随机字符
|
||||||
|
*
|
||||||
|
* @param min 从第几位开始
|
||||||
|
* @param max 到第几位结束
|
||||||
|
* @return 随机字符
|
||||||
|
*/
|
||||||
|
public static char alpha(int min, int max) {
|
||||||
|
return ALPHA[num(min, max)];
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
@ -9,48 +9,53 @@ import java.io.IOException;
|
||||||
import java.io.OutputStream;
|
import java.io.OutputStream;
|
||||||
|
|
||||||
import javax.imageio.ImageIO;
|
import javax.imageio.ImageIO;
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* <p>png格式验证码</p>
|
* png格式验证码
|
||||||
*
|
* Created by 王帆 on 2018-07-27 上午 10:08.
|
||||||
* @author: wuhongjun
|
|
||||||
* @version:1.0
|
|
||||||
*/
|
*/
|
||||||
public class SpecCaptcha extends Captcha
|
public class SpecCaptcha extends Captcha {
|
||||||
{
|
|
||||||
public SpecCaptcha()
|
public SpecCaptcha() {
|
||||||
{
|
|
||||||
}
|
}
|
||||||
public SpecCaptcha(int width, int height)
|
|
||||||
{
|
public SpecCaptcha(int width, int height) {
|
||||||
this.width = width;
|
setWidth(width);
|
||||||
this.height = height;
|
setHeight(height);
|
||||||
}
|
}
|
||||||
|
|
||||||
public SpecCaptcha(int width, int height, int len) {
|
public SpecCaptcha(int width, int height, int len) {
|
||||||
this(width, height);
|
this(width, height);
|
||||||
this.len = len;
|
setLen(len);
|
||||||
}
|
}
|
||||||
|
|
||||||
public SpecCaptcha(int width, int height, int len, Font font) {
|
public SpecCaptcha(int width, int height, int len, Font font) {
|
||||||
this(width, height, len);
|
this(width, height, len);
|
||||||
this.font = font;
|
setFont(font);
|
||||||
}
|
|
||||||
/**
|
|
||||||
* 生成验证码
|
|
||||||
* @throws java.io.IOException IO异常
|
|
||||||
*/
|
|
||||||
@Override
|
|
||||||
public void out(OutputStream out){
|
|
||||||
graphicsImage(alphas(), out);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 画随机码图
|
* 生成验证码
|
||||||
* @param strs 文本
|
*
|
||||||
* @param out 输出流
|
* @param out 输出流
|
||||||
|
* @return 是否成功
|
||||||
|
*/
|
||||||
|
@Override
|
||||||
|
public boolean out(OutputStream out) {
|
||||||
|
checkAlpha();
|
||||||
|
return graphicsImage(textChar(), out);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 生成验证码图形
|
||||||
|
*
|
||||||
|
* @param strs 验证码
|
||||||
|
* @param out 输出流
|
||||||
|
* @return boolean
|
||||||
*/
|
*/
|
||||||
private boolean graphicsImage(char[] strs, OutputStream out) {
|
private boolean graphicsImage(char[] strs, OutputStream out) {
|
||||||
boolean ok = false;
|
boolean ok;
|
||||||
try
|
try {
|
||||||
{
|
|
||||||
BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
|
BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
|
||||||
Graphics2D g = (Graphics2D) bi.getGraphics();
|
Graphics2D g = (Graphics2D) bi.getGraphics();
|
||||||
AlphaComposite ac3;
|
AlphaComposite ac3;
|
||||||
|
|
@ -58,25 +63,24 @@ public class SpecCaptcha extends Captcha
|
||||||
int len = strs.length;
|
int len = strs.length;
|
||||||
g.setColor(Color.WHITE);
|
g.setColor(Color.WHITE);
|
||||||
g.fillRect(0, 0, width, height);
|
g.fillRect(0, 0, width, height);
|
||||||
// 随机画干扰的蛋蛋
|
// 随机画干扰的圆圈
|
||||||
for (int i = 0; i < 15; i++) {
|
for (int i = 0; i < 15; i++) {
|
||||||
color = color(150, 250);
|
color = color(150, 250);
|
||||||
g.setColor(color);
|
g.setColor(color);
|
||||||
g.drawOval(num(width), num(height), 5+num(10), 5+num(10));// 画蛋蛋，有蛋的生活才精彩
|
g.drawOval(num(width), num(height), 5 + num(10), 5 + num(10));
|
||||||
color = null;
|
color = null;
|
||||||
}
|
}
|
||||||
g.setFont(font);
|
g.setFont(font);
|
||||||
int h = height - ((height - font.getSize()) >>1),
|
int h = height - ((height - font.getSize()) >> 1);
|
||||||
w = width/len,
|
int w = width / len;
|
||||||
size = w-font.getSize()+1;
|
int size = w - font.getSize() + 1;
|
||||||
/* 画字符串 */
|
// 画字符串
|
||||||
for(int i=0;i<len;i++)
|
for (int i = 0; i < len; i++) {
|
||||||
{
|
|
||||||
ac3 = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.7f);// 指定透明度
|
ac3 = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.7f);// 指定透明度
|
||||||
g.setComposite(ac3);
|
g.setComposite(ac3);
|
||||||
color = new Color(20 + num(110), 20 + num(110), 20 + num(110));// 对每个字符都用随机颜色
|
color = new Color(20 + num(110), 20 + num(110), 20 + num(110));// 对每个字符都用随机颜色
|
||||||
g.setColor(color);
|
g.setColor(color);
|
||||||
g.drawString(strs[i]+"",(width-(len-i)*w)+size, h-4);
|
g.drawString(String.valueOf(strs[i]), (width - (len - i) * w) + size, h - 4);
|
||||||
color = null;
|
color = null;
|
||||||
ac3 = null;
|
ac3 = null;
|
||||||
}
|
}
|
||||||
|
|
@ -85,12 +89,11 @@ public class SpecCaptcha extends Captcha
|
||||||
ok = true;
|
ok = true;
|
||||||
} catch (IOException e) {
|
} catch (IOException e) {
|
||||||
ok = false;
|
ok = false;
|
||||||
}finally
|
e.printStackTrace();
|
||||||
{
|
} finally {
|
||||||
try {
|
try {
|
||||||
out.close();
|
out.close();
|
||||||
} catch (IOException e) {
|
} catch (IOException e) {
|
||||||
// TODO Auto-generated catch block
|
|
||||||
e.printStackTrace();
|
e.printStackTrace();
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
|
||||||
|
|
@ -11,23 +11,14 @@ import com.wf.captcha.utils.CaptchaUtil;
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 验证码servlet
|
* 验证码servlet
|
||||||
*
|
* Created by 王帆 on 2018-07-27 上午 10:08.
|
||||||
* @author wangfan
|
|
||||||
* @date 2018-5-14 上午9:53:01
|
|
||||||
*/
|
*/
|
||||||
public class CaptchaServlet extends HttpServlet {
|
public class CaptchaServlet extends HttpServlet {
|
||||||
private static final long serialVersionUID = -90304944339413093L;
|
private static final long serialVersionUID = -90304944339413093L;
|
||||||
|
|
||||||
public void doGet(HttpServletRequest request, HttpServletResponse response)
|
public void doGet(HttpServletRequest request, HttpServletResponse response)
|
||||||
throws ServletException, IOException {
|
throws ServletException, IOException {
|
||||||
// 是否有key决定是存在session中还是servletContext中
|
CaptchaUtil.out(request, response);
|
||||||
String key = request.getParameter("key");
|
|
||||||
CaptchaUtil cu = new CaptchaUtil();
|
|
||||||
if (key != null && !key.trim().isEmpty()) {
|
|
||||||
cu.out(key, request, response);
|
|
||||||
} else {
|
|
||||||
cu.out(request, response);
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
|
|
||||||
public void doPost(HttpServletRequest request, HttpServletResponse response)
|
public void doPost(HttpServletRequest request, HttpServletResponse response)
|
||||||
|
|
|
||||||
|
|
@ -2,7 +2,6 @@ package com.wf.captcha.utils;
|
||||||
|
|
||||||
import java.io.IOException;
|
import java.io.IOException;
|
||||||
|
|
||||||
import javax.servlet.ServletContext;
|
|
||||||
import javax.servlet.http.HttpServletRequest;
|
import javax.servlet.http.HttpServletRequest;
|
||||||
import javax.servlet.http.HttpServletResponse;
|
import javax.servlet.http.HttpServletResponse;
|
||||||
|
|
||||||
|
|
@ -11,136 +10,75 @@ import com.wf.captcha.GifCaptcha;
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 图形验证码工具类
|
* 图形验证码工具类
|
||||||
*
|
* Created by 王帆 on 2018-07-27 上午 10:08.
|
||||||
* @author wangfan
|
|
||||||
* @date 2018-5-14 上午9:41:06
|
|
||||||
*/
|
*/
|
||||||
public class CaptchaUtil {
|
public class CaptchaUtil {
|
||||||
private String codeName = "captcha";
|
private static final String SESSION_KEY = "captcha";
|
||||||
private int width = 130;
|
|
||||||
private int height = 38;
|
|
||||||
private int len = 5;
|
|
||||||
|
|
||||||
public CaptchaUtil() {
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* 验证码的宽、高、位数
|
|
||||||
*/
|
|
||||||
public CaptchaUtil(int width, int height, int len) {
|
|
||||||
set(width, height, len);
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 验证验证码
|
* 验证验证码
|
||||||
*/
|
*/
|
||||||
public boolean ver(String code, HttpServletRequest request) {
|
public static boolean ver(String code, HttpServletRequest request) {
|
||||||
String captcha = (String) request.getSession().getAttribute(codeName);
|
if (code != null && !code.trim().isEmpty()) {
|
||||||
return code.equals(captcha);
|
String captcha = (String) request.getSession().getAttribute(SESSION_KEY);
|
||||||
|
return code.trim().toLowerCase().equals(captcha);
|
||||||
}
|
}
|
||||||
|
return false;
|
||||||
/**
|
|
||||||
* 验证验证码，用于分离的项目
|
|
||||||
*/
|
|
||||||
public boolean ver(String key, String code, HttpServletRequest rq) {
|
|
||||||
ServletContext sc = rq.getServletContext();
|
|
||||||
String keyName = codeName + "-" + key;
|
|
||||||
String captcha = (String) sc.getAttribute(keyName);
|
|
||||||
return code.equals(captcha);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 输出验证码
|
* 输出验证码
|
||||||
|
*
|
||||||
|
* @param request
|
||||||
|
* @param response
|
||||||
|
* @throws IOException
|
||||||
*/
|
*/
|
||||||
public void out(HttpServletRequest rq, HttpServletResponse rp)
|
public static void out(HttpServletRequest request, HttpServletResponse response)
|
||||||
throws IOException {
|
throws IOException {
|
||||||
|
out(130, 38, 5, request, response);
|
||||||
setHeader(rp);
|
|
||||||
|
|
||||||
// 验证码的宽、高、位数
|
|
||||||
Captcha captcha = new GifCaptcha(width, height, len);
|
|
||||||
// 存入缓存
|
|
||||||
rq.getSession().setAttribute(codeName, captcha.text().toLowerCase());
|
|
||||||
|
|
||||||
// 输入图片
|
|
||||||
captcha.out(rp.getOutputStream());
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 输出验证码，用于分离项目
|
* 输出验证码
|
||||||
|
*
|
||||||
|
* @param len 长度
|
||||||
|
* @param request
|
||||||
|
* @param response
|
||||||
|
* @throws IOException
|
||||||
*/
|
*/
|
||||||
public void out(String key, HttpServletRequest rq, HttpServletResponse rp)
|
public static void out(int len, HttpServletRequest request, HttpServletResponse response)
|
||||||
throws IOException {
|
throws IOException {
|
||||||
|
out(130, 38, len, request, response);
|
||||||
setHeader(rp);
|
|
||||||
|
|
||||||
// 验证码的宽、高、位数
|
|
||||||
Captcha captcha = new GifCaptcha(width, height, len);
|
|
||||||
// 存入缓存
|
|
||||||
ServletContext sc = rq.getServletContext();
|
|
||||||
sc.setAttribute(codeName, captcha.text().toLowerCase());
|
|
||||||
|
|
||||||
// 输入图片
|
|
||||||
captcha.out(rp.getOutputStream());
|
|
||||||
}
|
|
||||||
|
|
||||||
private void setHeader(HttpServletResponse rp) {
|
|
||||||
rp.setContentType("image/gif");
|
|
||||||
rp.setHeader("Pragma", "No-cache");
|
|
||||||
rp.setHeader("Cache-Control", "no-cache");
|
|
||||||
rp.setDateHeader("Expires", 0);
|
|
||||||
}
|
|
||||||
|
|
||||||
public String getCodeName() {
|
|
||||||
return codeName;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 设置保存code的key
|
* 输出验证码
|
||||||
|
*
|
||||||
|
* @param width 宽度
|
||||||
|
* @param height 高度
|
||||||
|
* @param len 长度
|
||||||
|
* @param request
|
||||||
|
* @param response
|
||||||
|
* @throws IOException
|
||||||
*/
|
*/
|
||||||
public void setCodeName(String codeName) {
|
public static void out(int width, int height, int len, HttpServletRequest request, HttpServletResponse response)
|
||||||
this.codeName = codeName;
|
throws IOException {
|
||||||
}
|
setHeader(response);
|
||||||
|
Captcha captcha = new GifCaptcha(130, 38, 5);
|
||||||
public int getWidth() {
|
request.getSession().setAttribute(SESSION_KEY, captcha.text().toLowerCase());
|
||||||
return width;
|
captcha.out(response.getOutputStream());
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* 设置验证码的宽度
|
* 设置相应头
|
||||||
|
*
|
||||||
|
* @param response
|
||||||
*/
|
*/
|
||||||
public void setWidth(int width) {
|
private static void setHeader(HttpServletResponse response) {
|
||||||
this.width = width;
|
response.setContentType("image/gif");
|
||||||
|
response.setHeader("Pragma", "No-cache");
|
||||||
|
response.setHeader("Cache-Control", "no-cache");
|
||||||
|
response.setDateHeader("Expires", 0);
|
||||||
}
|
}
|
||||||
|
|
||||||
public int getHeight() {
|
|
||||||
return height;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* 设置验证码的高度
|
|
||||||
*/
|
|
||||||
public void setHeight(int height) {
|
|
||||||
this.height = height;
|
|
||||||
}
|
|
||||||
|
|
||||||
public int getLen() {
|
|
||||||
return len;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* 设置验证码的位数
|
|
||||||
*/
|
|
||||||
public void setLen(int len) {
|
|
||||||
this.len = len;
|
|
||||||
}
|
|
||||||
|
|
||||||
/**
|
|
||||||
* 设置验证码的宽、高、位数
|
|
||||||
*/
|
|
||||||
public void set(int width, int height, int len) {
|
|
||||||
setWidth(width);
|
|
||||||
setHeight(height);
|
|
||||||
setLen(len);
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
|
|
|
||||||
|
|
@ -0,0 +1,27 @@
|
||||||
|
package com.wf.captcha;
|
||||||
|
|
||||||
|
import org.junit.Test;
|
||||||
|
|
||||||
|
import java.io.File;
|
||||||
|
import java.io.FileOutputStream;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* 测试类
|
||||||
|
* Created by 王帆 on 2018-07-27 上午 10:08.
|
||||||
|
*/
|
||||||
|
public class CaptchaTest {
|
||||||
|
|
||||||
|
@Test
|
||||||
|
public void test() throws Exception {
|
||||||
|
SpecCaptcha specCaptcha = new SpecCaptcha(150, 40, 4);
|
||||||
|
System.out.println(specCaptcha.text());
|
||||||
|
specCaptcha.out(new FileOutputStream(new File("D:/a/aa.png")));
|
||||||
|
}
|
||||||
|
|
||||||
|
@Test
|
||||||
|
public void testGIf() throws Exception {
|
||||||
|
GifCaptcha specCaptcha = new GifCaptcha(150, 40, 4);
|
||||||
|
System.out.println(specCaptcha.text());
|
||||||
|
specCaptcha.out(new FileOutputStream(new File("D:/a/aa.gif")));
|
||||||
|
}
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue