java统一结果集封装
统一返回结果集封装
package com.example.springbootlearn.common;
import com.alibaba.fastjson.JSONObject;
import lombok.Data;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
/**
* @author: fjh
* @create: 2021-02-26 11:34
* <p>
* 统一结果返回
*/
@Data
public class R<T> implements Serializable {
private String code;
private String msg;
private T data;
static JSONObject emptyJson = new JSONObject();
public static <T> R ok() {
return ok(ResultEnum.SUCCESS.code, ResultEnum.SUCCESS.msg);
}
public static <T> R ok(String msg) {
return ok(ResultEnum.SUCCESS.code, msg);
}
public static <T> R ok(T data) {
return ok(ResultEnum.SUCCESS.code, ResultEnum.SUCCESS.msg, data);
}
public static <T> R ok(String code, String msg) {
return ok(code, msg, emptyJson);
}
public static <T> R ok(String code, String msg, T data) {
return info(code, msg, data);
}
public static <T> R error() {
return error(ResultEnum.FAILURE.code, ResultEnum.FAILURE.msg);
}
public static <T> R error(String msg) {
return error(ResultEnum.FAILURE.code, msg);
}
public static <T> R error(T data) {
return error(ResultEnum.FAILURE.code, ResultEnum.FAILURE.msg, data);
}
public static <T> R error(String code, String msg) {
return error(code,msg,emptyJson);
}
public static <T> R error(String code, String msg, T data) {
return info(code,msg,data);
}
public static <T> R info(String code, String msg, T data) {
R r = new R();
r.setCode(code);
r.setMsg(msg);
r.setData(data);
if (null == data) {
r.setData(emptyJson);
} else if (data instanceof String) {
List<String> list = new ArrayList<>();
list.add(data.toString());
r.setData(list);
}
return r;
}
public static enum ResultEnum {
SUCCESS("200", "操作成功"),
FAILURE("-1", "操作失败");
public String code;
public String msg;
ResultEnum(String code, String msg) {
this.code = code;
this.msg = msg;
}
}
public R() {
}
public R(String code, String msg) {
this.code = code;
this.msg = msg;
}
public R(String code, String msg, T data) {
this.code = code;
this.msg = msg;
this.data = data;
}
}
java统一结果集封装
原文地址:https://www.cnblogs.com/fjh0512/p/14452226.html