SpringBoot06 统一响应格式

 

1 要求

  每个请求成功后,后台返回的响应格式都是一致的,例如:

    

 

2 创建一个视图模型

  该模型用于格式化响应数据

package cn.xiangxu.springboottest.model.dataViewModel;

import lombok.Data;

@Data
public class ResultViewModel<T> {
    private Integer code;
    private String message;
    private T data;
}

 

3 创建一个视图模型工具类

  该工具类根据传入的参数来实例化视图模型类

  

package cn.xiangxu.springboottest.utils;

import cn.xiangxu.springboottest.model.dataViewModel.ResultViewModel;

/**
 * 响应数据封装类
 */
public class ResultViewModelUtil {
    /**
     * 请求成功方法01
     * @param object 响应数据
     * @return 视图模型实例
     */
    public static ResultViewModel success(Object object) {
        ResultViewModel resultViewModel = new ResultViewModel();
        resultViewModel.setCode(0);
        resultViewModel.setMessage("请求成功");
        resultViewModel.setData(object);
        return resultViewModel;
    }

    /**
     * 请求成功方法02
     * @return 视图模型实例
     */
    public static ResultViewModel success() {
        return success(null);
    }

    /**
     * 请求失败方法01(捕获到的已知异常)
     * @param code 异常编号
     * @param message 异常信息
     * @return 视图模型实例
     */
    public static ResultViewModel error(Integer code, String message) {
        ResultViewModel resultViewModel = new ResultViewModel();
        resultViewModel.setCode(code);
        resultViewModel.setMessage(message);
        resultViewModel.setData(null);
        return resultViewModel;
    }

    /**
     * 请求失败方法02(系统异常)
     * @return 视图模型实例
     */
    public static ResultViewModel error() {
        ResultViewModel resultViewModel = new ResultViewModel();
        resultViewModel.setCode(-1);
        resultViewModel.setMessage("系统异常");
        resultViewModel.setData("系统维护中...");
        return resultViewModel;
    }
}
View Code

 

4 利用视图模型工具类向前台返回格式化的JSON数据

  

package cn.xiangxu.springboottest.controller;

import cn.xiangxu.springboottest.model.dataViewModel.ResultViewModel;
import cn.xiangxu.springboottest.service.GirlService;
import cn.xiangxu.springboottest.utils.ResultViewModelUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;

@RestController
@RequestMapping(value = "/girl")
@Slf4j
public class GirlController {

    @Resource(name = "girlService")
    private GirlService girlService;

    @GetMapping
    public ResultViewModel test() {
        log.info("hello boy");
        return ResultViewModelUtil.success("响应数据");
//        return ResultViewModelUtil.success(girlService.findAllGirl());
    }

}
View Code

 

posted @ 2018-01-02 15:39  寻渝记  阅读(527)  评论(0编辑  收藏  举报