标签:mybatis
需求:实现多条件查询用户(姓名模糊匹配, 年龄在指定的最小值到最大值之间)
User.java实体类
public class User {
private int id;
private String name;
private int age;
//...
}
ConditionUser.java
public class ConditionUser {
private String name;
private int minAge;
private int maxAge;
//...
} <!--
实现多条件查询用户(姓名模糊匹配, 年龄在指定的最小值到最大值之间)
类似jstl表达式
-->
<select id="getUser" parameterType="com.mybatis.test05.ConditionUser" resultType="com.mybatis.test05.User">
select * from d_user where
<if test=‘name != "%null%"‘>
name like #{name} and
</if>
age between #{minAge} and #{maxAge}
</select>测试
SqlSessionFactory factory = MybatisUtil.getFactory();
SqlSession session = factory.openSession();
String statement = "com.mybatis.test05.userMapper.getUser";
String name = "o";
name = null;
ConditionUser parameter = new ConditionUser("%"+name+"%", 13, 18);
List<User> list = session.selectList(statement, parameter);
System.out.println(list);
session.close();MyBatis中可用的动态SQL标签
if
choose (when otherwise)
trim (where set)
foreach
本文出自 “阿凡达” 博客,请务必保留此出处http://shamrock.blog.51cto.com/2079212/1559302
标签:mybatis
原文地址:http://shamrock.blog.51cto.com/2079212/1559302