Mybatis 返回值 返回Map的为空的值

第一种、springMVC和boot通用配置:(Mybatis.xml)

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD SQL MAP Config 3.1//EN"

"http://mybatis.org/dtd/mybatis-3-config.dtd">

<configuration>

    <settings>

        <setting name="callSettersOnNulls" value="true"/>

    </settings>

</configuration>

第二种、boot专用配置:

在application.properties中添加:

mybatis.configuration.call-setters-on-nulls=true

第三种、每个sql返回字段做判断(通用boot、mvc、比较麻烦):

IFNULL(name,'') as name

  

猜你喜欢

转载自www.cnblogs.com/gjths/p/11532885.html