Mybatis 动态sql 示例 复杂类型对象 作为参数进行取值

Posted 2020-10-04 跳刀玛利亚

package com.sly.web.sys.model;

public class SysU {
private int id;
private String username;
private String sex;
private String birthday;
private String address;

private Tone t1;
private Ttwo t2;

省略getter setter

}

 

 

controller!!!!!!!!

@RequestMapping(value="testParamModel01" , method = RequestMethod.GET)
public void testParamModel(){
Tone t1 = new Tone();
t1.setAdd("address1");
t1.setPhone("phone");
Ttwo t2 = new Ttwo();
t2.setAge("age");
t2.setSex("sex");
SysU s = new SysU();
s.setT1(t1);
s.setT2(t2);
s.setUsername("username");
List<String> l = sysService.testRun07(s);
}

 

 

service !!!!!!!!!

public List<String> testRun07(SysU s){

List<String> l = sysUMapper.testParamModel2(s);


return l;
}

 

mapper.java

public List<String> testParamModel2(@Param("sysu") SysU sysu);

 

mapper.xml

<select id="testParamModel2" resultType="java.lang.String">
　　select username from testuser
　　　　<where>
　　　　　　address = #{sysu.t1.add}
　　　　</where>
</select>

 

注意   获取的 t1  与 add  分别为 对象中成员变量的名字   通过 getter方法名字来获取数值