后端返回json数据（自用）

pom.xmlCode类Result类Utils

     com.alibaba
     fastjson
     1.2.76

public enum Code {

    SUCCESS(0,"成功！"),
    LOGIN_FAIL(10001,"用户名或密码错误"),
    RESULT_STRING_METHOD_VALUE_WRONG(10000,"resultString方法参数错误"),
    CODE_MISTAKE(100002,"后台代码错误"),
    CODE_REGIST_REPEAT(100003,"账户名已存在！");

    private Integer code;
    private String message;

    Code(Integer code, String message) {
        this.code = code;
        this.message = message;
    }

    public Integer getCode() {
        return code;
    }

    public void setCode(Integer code) {
        this.code = code;
    }

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }
}

@Data//lombok
public class  Result implements Serializable {
    private Integer code;
    private String message;
    private T data;

    public Result(Code code,  T data) {
        this.code = code.getCode();
        this.message = code.getMessage();
        this.data = data;
    }
    public Result(Code code) {//重载，可只传code
        this.code = code.getCode();
        this.message = code.getMessage();
    }
    public Result(String error){//重载，可只传message
        this.code=500;
        this.message = error;
    }

}

import com.alibaba.fastjson.JSON;

import java.util.HashMap;
import java.util.Map;


public class Utils {

    
    public static String FailResult(Code code){
        Result