使用Mybatisplus中的selectMaps方法返回值字段为空不显示的问题

1.application.yaml设置mybayisPlus没加call-setters-on-nulls: true之前

mybatis-plus:
  mapper-locations: classpath*:/mapper/**Mapper.xml
  #实体扫描，多个package用逗号或者分号分隔
  typeAliasesPackage: com.vkl.booking.persistence.entity
  configuration.cache-enabled: false
  global-config.db-config.db-type: mysql
  configuration.jdbc-type-for-null: null

调用mybatisPlus的selectMaps方法。好处：如果返回类型某个对象缺少字段，这里可以自定义要返回的字段。

public Message test(){
        List<Map<String, Object>> mapList = cLibraryMapper.selectMaps(new LambdaQueryWrapper<CompanyBookingLibrary>());
        for(Map<String,Object> map :mapList){
            /*自定义添加自己想要的字段*/
            map.put("test","1");
        }
        return Message.object(mapList);
    }

请求结果： 

2.添加call-setters-on-nulls: true之后

mybatis-plus:
  mapper-locations: classpath*:/mapper/**Mapper.xml
  #实体扫描，多个package用逗号或者分号分隔
  typeAliasesPackage: com.vkl.booking.persistence.entity
  configuration.cache-enabled: false
  global-config.db-config.db-type: mysql
  configuration.jdbc-type-for-null: null
  configuration:
    call-setters-on-nulls: true

返回结果：

为空的字段也返回出来了，大功告成！