创建返回状态码枚举
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package
com.sunny.tool.api.enums;
/**
* @Author sunt
* @Description 响应枚举状态码
* @Date 2019/10/31
**/
public
enum
ResultCode {
// 成功
SUCCESS(
200
),
// 失败
FAIL(
400
),
// 未认证（签名错误）
UNAUTHORIZED(
401
),
// 接口不存在
NOT_FOUND(
404
),
// 服务器内部错误
INTERNAL_SERVER_ERROR(
500
);
public
int
code;
ResultCode(
int
code) {
this
.code = code;
}
}
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返回结果集封装
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package
com.sunny.tool.api.entity;
import
com.sunny.tool.api.enums.ResultCode;
/**
* @ClassName: ResponseResult
* @Description: 返回结果集封装
* @Author: sunt
* @Date: 2019/10/31 16:11
* @Version 1.0
**/
public
class
ResponseResult<T> {
public
int
code;
//返回状态码200成功
private
String msg;
//返回描述信息
private
T data;
//返回内容体
public
ResponseResult<T> setCode(ResultCode retCode) {
this
.code = retCode.code;
return
this
;
}
public
int
getCode() {
return
code;
}
public
ResponseResult<T> setCode(
int
code) {
this
.code = code;
return
this
;
}
public
String getMsg() {
return
msg;
}
public
ResponseResult<T> setMsg(String msg) {
this
.msg = msg;
return
this
;
}
public
T getData() {
return
data;
}
public
ResponseResult<T> setData(T data) {
this
.data = data;
return
this
;
}
}
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响应客户端结果集封装
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package
com.sunny.tool.api.entity;
import
com.sunny.tool.api.enums.ResultCode;
/**
* @ClassName: Response
* @Description:将结果转换为封装后的对象
* @Author: sunt
* @Date: 2019/10/31 16:11
* @Version 1.0
**/
public
class
Response {
private
final
static
String SUCCESS =
"success"
;
private
final
static
String FAIL =
"fail"
;
public
static
<T> ResponseResult<T> makeOKRsp() {
return
new
ResponseResult<T>().setCode(ResultCode.SUCCESS).setMsg(SUCCESS);
}
public
static
<T> ResponseResult<T> makeOKRsp(String message) {
return
new
ResponseResult<T>().setCode(ResultCode.SUCCESS).setMsg(message);
}
public
static
<T> ResponseResult<T> makeOKRsp(T data) {
return
new
ResponseResult<T>().setCode(ResultCode.SUCCESS).setMsg(SUCCESS).setData(data);
}
public
static
<T> ResponseResult<T> makeErrRsp(String message) {
return
new
ResponseResult<T>().setCode(ResultCode.INTERNAL_SERVER_ERROR).setMsg(message);
}
public
static
<T> ResponseResult<T> makeRsp(
int
code, String msg) {
return
new
ResponseResult<T>().setCode(code).setMsg(msg);
}
public
static
<T> ResponseResult<T> makeRsp(
int
code, String msg, T data) {
return
new
ResponseResult<T>().setCode(code).setMsg(msg).setData(data);
}
}
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以查询用户列表为例讲解具体使用
创建查询用户的Controller
package com.sunny.tool.api.controller;
import com.sunny.tool.api.entity.Response;
import com.sunny.tool.api.entity.ResponseResult;
import com.sunny.tool.api.entity.UserBean;
import com.sunny.tool.api.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
/**
* @ClassName: TestController
* @Description:
* @Author: sunt
* @Date: 2019/10/31 16:12
* @Version 1.0
**/
@RestController
@RequestMapping("/test")
public class TestController {
@Autowired
private UserService userService;
@RequestMapping("/queryUserList")
public ResponseResult<List<UserBean>> queryUserList() {
try {
//调用业务层返回用户列表
List<UserBean> userList = userService.queryUserList();
return Response.makeOKRsp(userList);
} catch (Exception e) {
e.printStackTrace();
return Response.makeErrRsp("查询用户信息异常");
}
}
}
查询成功返回结果集信息
服务器异常返回结果集信息
