mybatis的dtd约束文件及配置文件xml自动提示操作

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration 
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
 <environments default="development">
 <environment id="development">
 <!--使用jdbc事务管理 -->
 <transactionManager type="JDBC"/>
 <!-- 数据库连接池 -->
 <dataSource type="POOLED">
 <property name="driver" value="com.mysql.jdbc.Driver"/>
 <property name="url" value="jdbc:mysql://localhost:3306/mybatis?characterEncoding=utf-8"/>
 <property name="username" value="root"/>
 <property name="password" value="1234"/>
 </dataSource>
 </environment>
 </environments>
 <!-- 引入映射配置文件 -->
 <mappers>
 <mapper resource="cn/zhku/jsj/mybatis/pojo/User.xml"/>
 </mappers>
</configuration>

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
 
<!-- namespace：命名空间，用于隔离sql-->
<mapper namespace="user">
 <select id="findUserByUsername" parameterType="String" resultType="cn.zhku.jsj.mybatis.pojo.User">
 select * from user where username like '%${value}%'
 </select>
</mapper>