SpringMvc---ssm整合--表现层数据封装（4）

设置统─数据返回结果类
 

public class Result {
private 0bject data;
private Integer code;
private String msg;
}

在controller包下新建一个Rsult类和code类

package com.controller;

public class Code {
    public static final Integer SAVE_OK =20011;
    public static final Integer DELETE_OK =20021;
    public static final Integer UPDATE_OK =20031;
    public static final Integer GET_OK =20041;


    public static final Integer SAVE_ERR =20010;
    public static final Integer DELETE_ERR =20020;
    public static final Integer UPDATE_ERR =20030;
    public static final Integer GET_ERR=20040;
}

package com.controller;

public class Result {

        private Object data;
        private Integer code;
        private String msg;

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

        public Result() {
        }

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

        public Object getData() {
                return data;
        }

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

        public Integer getCode() {
                return code;
        }

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

        public String getMsg() {
                return msg;
        }

        public void setMsg(String msg) {
                this.msg = msg;
        }
}

在BookControll中进行调整（其他以此类推）