java正确开发系列:mybatis为何提示@MapKey is required
在mapper接口的方法定义为List<Map<String,Object>>类型时,会出现@MapKey is required的提示,意思是要在该方法的签名前加上@MapKey注解,指定Map的key
参考资料:
https://blog.csdn.net/m0_59846266/article/details/128525083
https://blog.csdn.net/dxyzhbb/article/details/107958528
https://blog.csdn.net/jx520/article/details/87452574