简单数据封装

package com.itheima.controller.results;

public class Result {
    //    操作结果编码
    private Integer code;
    //    操作数据结果
    private Object data;
    //    消息
    private String message;

    public Result(Integer code) {
        this.code = code;
    }

    public Result(Integer code, Object data) {
        this.code = code;
        this.data = data;
    }

    @Override
    public String toString() {
        return "Result{" +
                "code=" + code +
                ", data=" + data +
                ", message='" + message + '\'' +
                '}';
    }

    public Integer getCode() {
        return code;
    }

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

    public Object getData() {
        return data;
    }

    public void setData(Object data) {
        this.data = data;
    }

    public String getMessage() {
        return message;
    }

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

package com.itheima.controller.results;

public class Code {
//    操作结果编码
    public static final Integer SAVE_OK = 20011;
    public static final Integer UPDATE_OK = 20021;
    public static final Integer DELETE_OK = 20031;
    public static final Integer GET_OK = 20041;

    public static final Integer SAVE_ERROR = 20010;
    public static final Integer UPDATE_ERROR = 20020;
    public static final Integer DELETE_ERROR = 20030;
    public static final Integer GET_ERROR = 20040;

//    系统错误编码

//    操作权限编码

//    校验结果编码

}