Mybatis resultMap支持继承

佚名 6年前 (2019-05-14) 随笔 2053人围观抢沙发百度已收录

一、代码

映射domain为继承关系

SRE实战互联网时代守护先锋，助力企业售后服务体系运筹帷幄！一键直达领取阿里云限量特价优惠。

public class CocTreeNode extends CocBean implements TreeNode<CocTreeNode> {
 
  private String level1, level2;
 
  public void setLevel1(String level1){...}
  public void setLevel2(String level2){...}
 
  public String getLevel1(){...}
  public String getLevel1(){...}
 
}
 
public class CocBean {
 
  protected String name;
  protected Double volume;
 
  public void setName(String name){...}
  public void setVolume(Double volume){...}
 
  public String getName(){...}
  public Double getVolume(){...}
 
}

二、映射xml文件

利用resultMap的extends属性。

<resultMap id="CocBeanResult" type="CocBean">
    <result property="name" column="NAME"/>
    <result property="volume" column="VOLUME"/>
</resultMap>
 
<resultMap id="simpleRow" type="CocTreeNode" extends="CocBeanResult">
    <result property="level1" column="LEVEL1"/>
    <result property="level2" column="LEVEL2"/>
</resultMap>