Update README.md

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@ -54,12 +54,12 @@ dependencies {
</servlet>
<servlet-mapping>
<servlet-name>CaptchaServlet</servlet-name>
<url-pattern>/image/captcha</url-pattern>
   <url-pattern>/images/captcha</url-pattern>
</servlet-mapping>
```
2.前端代码
```html
<img src="/image/captcha" />
<img src="/images/captcha" />
```
### 在*SpringMVC*中使用
@ -77,7 +77,7 @@ public void captcha(HttpServletRequest request, HttpServletResponse response) {
```
前端代码:
```html
<img src="/image/captcha" />
<img src="/images/captcha" />
```
### 前后端分离中使用
@ -97,7 +97,7 @@ public void captcha(String key, HttpServletRequest request, HttpServletResponse
前后端分离也同样可以使用框架自带的servlet使用方式如下
```html
<img src="/image/captcha?key=xxx" />
<img src="/images/captcha?key=xxx" />
<!-- 此处的key应该有js随机生成并且js在验证的时候也需要传递这个key -->
```
@ -131,4 +131,4 @@ CaptchaUtil captcha = new CaptchaUtil(130, 38, 5);
CaptchaUtil captcha = new CaptchaUtil();
captcha.setCodeName("captcha");
```
默认存在session中是以captcha为key存储的存储在servletContext中是以captcha-xxx为key存储的xxx是生成的时候前端传递的key。
默认存在session中是以captcha为key存储的存储在servletContext中是以captcha-xxx为key存储的xxx是生成的时候前端传递的key。