SpringMVC用@RequestBody反序列化时出错

Question

public Object selectByExample(@RequestBody SysRole sysRole)

json是这样的

{"id":"","rolename":"root","sort":"","info":"","lastModifyTime":"","status":"","pageNum":"1","pageSize":"2"};

实体类SysRole是这样的

public class SysRole extends MyPage implements Serializable{
    private Integer id;

    private String rolename;

    private Integer sort;

    private String info;

    private Date lastModifyTime;

    private Integer status;

public class MyPage implements Serializable{
    //当前页
    private int pageNum=1;
    //每页的数量
    private int pageSize=10;

get和set省略

报错：com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of com.dongwukj.domain.sys.SysRole out of START_ARRAY token

Answer 1

不明白，大神求教

Answer 2

传入的 JSON 格式有问题，

你懂得 

Answer 3

确认过了，sort改成0依然报错，应该与SysRole的继承有关系，但不知道怎么解决

Answer 4

解决了，是自己太大意了，应该传入json字符串的，结果自己写成了json对象，去墙角默默反省