blade-tool/blade-core-mybatis/src/main/java/org/springblade/core/mp/support/SqlKeyword.java

111 lines
3.3 KiB
Java

/**
* Copyright (c) 2018-2028, Chill Zhuang 庄骞 (smallchill@163.com).
* <p>
* Licensed under the GNU LESSER GENERAL PUBLIC LICENSE 3.0;
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* <p>
* http://www.gnu.org/licenses/lgpl.html
* <p>
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springblade.core.mp.support;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import org.springblade.core.tool.utils.Func;
import org.springblade.core.tool.utils.StringPool;
import org.springblade.core.tool.utils.StringUtil;
import java.util.Map;
/**
* 定义常用的 sql关键字
*
* @author Chill
*/
public class SqlKeyword {
private final static String SQL_REGEX = "'|%|--|insert|delete|select|count|group|union|drop|truncate|alter|grant|execute|exec|xp_cmdshell|call|declare|sql";
private static final String EQUAL = "_equal";
private static final String NOT_EQUAL = "_notequal";
private static final String LIKE = "_like";
private static final String NOT_LIKE = "_notlike";
private static final String GT = "_gt";
private static final String LT = "_lt";
private static final String DATE_GT = "_dategt";
private static final String DATE_EQUAL = "_dateequal";
private static final String DATE_LT = "_datelt";
private static final String IS_NULL = "_null";
private static final String NOT_NULL = "_notnull";
private static final String IGNORE = "_ignore";
/**
* 条件构造器
*
* @param query 查询字段
* @param qw 查询包装类
*/
public static void buildCondition(Map<String, Object> query, QueryWrapper<?> qw) {
if (Func.isEmpty(query)) {
return;
}
query.forEach((k, v) -> {
if (Func.hasEmpty(k, v) || k.endsWith(IGNORE)) {
return;
}
if (k.endsWith(EQUAL)) {
qw.eq(getColumn(k, EQUAL), v);
} else if (k.endsWith(NOT_EQUAL)) {
qw.ne(getColumn(k, NOT_EQUAL), v);
} else if (k.endsWith(NOT_LIKE)) {
qw.notLike(getColumn(k, NOT_LIKE), v);
} else if (k.endsWith(GT)) {
qw.gt(getColumn(k, GT), v);
} else if (k.endsWith(LT)) {
qw.lt(getColumn(k, LT), v);
} else if (k.endsWith(DATE_GT)) {
qw.gt(getColumn(k, DATE_GT), v);
} else if (k.endsWith(DATE_EQUAL)) {
qw.eq(getColumn(k, DATE_EQUAL), v);
} else if (k.endsWith(DATE_LT)) {
qw.lt(getColumn(k, DATE_LT), v);
} else if (k.endsWith(IS_NULL)) {
qw.isNull(getColumn(k, IS_NULL));
} else if (k.endsWith(NOT_NULL)) {
qw.isNotNull(getColumn(k, NOT_NULL));
} else {
qw.like(getColumn(k, LIKE), v);
}
});
}
/**
* 获取数据库字段
*
* @param column 字段名
* @param keyword 关键字
* @return String
*/
private static String getColumn(String column, String keyword) {
return StringUtil.humpToUnderline(StringUtil.removeSuffix(column, keyword));
}
/**
* 把SQL关键字替换为空字符串
*
* @param param 关键字
* @return string
*/
public static String filter(String param) {
if (param == null) {
return null;
}
return param.replaceAll("(?i)" + SQL_REGEX, StringPool.EMPTY);
}
}