目录

基本内容

准备 

案例一:不返回数据

案例二:返回数据

给日志抽象，再继承使用

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基本内容

一种企业级的项目开发规范-项目前后端通信（或者与第三方服务通信)时的一种约定

准备 

在api模块》src》main》java》com.cuihua.boot.middleware.api.response下创建一个状态码枚举类StatusCode.和BaseResponse（项目的统一响应模型类)

package com.cuihua.boot.middleware.api.response; public enum StatusCode { Success(0,"成功"), Fail(-1, "失败"), InvalidParam(201, "非法的参数!") ; private Integer code; private String msg; StatusCode(Integer code, String msg) { this.code = code; this.msg = msg; } 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; } } package com.cuihua.boot.middleware.api.response; //为了支持各种各样的数据类型，使用了泛型 public class BaseResponse<T> { private Integer code; private String msg; private T data; public BaseResponse(Integer code, String msg) { this.code = code; this.msg = msg; } public BaseResponse(Integer code, String msg, T data) { this.code = code; this.msg = msg; this.data = data; } public BaseResponse(StatusCode statusCode) { //体现封装的思想 this.code = statusCode.getCode(); this.msg = statusCode.getMsg(); } }

案例一:不返回数据

在server的controller中

package com.cuihua.boot.middleware.server.controller; import com.cuihua.boot.middleware.api.response.BaseResponse; import com.cuihua.boot.middleware.api.response.StatusCode; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RestController; @RestController @RequestMapping("base") public class BaseController { @RequestMapping(value="info", method = RequestMethod.GET) public BaseResponse info(){ BaseResponse response = new BaseResponse(StatusCode.Success); try{ response.setData("眼睛为他下着雨，心却为他打着伞，这就是爱情~"); }catch (Exception e){ response = new BaseResponse(StatusCode.Fail); } return response; } }

在postman中可以请求到具体的情况

案例二:返回数据

数据层

package com.cuihua.boot.middleware.server.dto; import java.io.Serializable; public class BaseDto implements Serializable { private Integer id; private String content; public BaseDto() { } public BaseDto(Integer id, String content) { this.id = id; this.content = content; } public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getContent() { return content; } public void setContent(String content) { this.content = content; } }

service层

package com.cuihua.boot.middleware.server.service; import com.cuihua.boot.middleware.server.controller.BaseController; import com.cuihua.boot.middleware.server.dto.BaseDto; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.stereotype.Service; import java.util.ArrayList; import java.util.LinkedList; import java.util.List; @Service public class BaseService { private static final Logger log = LoggerFactory.getLogger(BaseService.class); public List<BaseDto> getList() throws Exception{ List<BaseDto> dtos = new LinkedList<BaseDto>(); dtos.add(new BaseDto(1, "天空没有翅膀的痕迹，而我已经飞过;思念是翅膀飞过的痕迹。")); dtos.add(new BaseDto(2, "长日尽处，我站在你的面前，你将看到我的疤痕,知道我曾经受伤，也曾经痊愈。")); dtos.add(new BaseDto(3, "我的心是旷野的鸟，在你的眼睛里找到了天空。")); dtos.add(new BaseDto(4, "你的完美,是一种债,我终身偿还,以唯一的爱。")); dtos.add(new BaseDto(5, "我曾抱有不少幻想，现在我把幻想抛弃。循着虚假的希望的足迹，我踩到了荆棘上，才知道它们不是鲜花，我永不和爱情逢场作戏，我永不戏弄我的心")); return dtos; } }

Controller层

@Autowired private BaseService baseService; //列表-请求方法 @RequestMapping(value = "list", method = RequestMethod.GET) public BaseResponse list() { BaseResponse response = new BaseResponse(StatusCode.Success); try{ List<BaseDto> dtoList= baseService.getList(); response.setData(dtoList); log.info("--列表-请求方法-得到的业务数据:{}, ", dtoList); }catch (Exception e){ response = new BaseResponse(StatusCode.Fail); } return response; }

结果

给日志抽象，再继承使用

public class AbstractController { //体现一种封装的思想（日志的统一抽取) protected Logger log = LoggerFactory.getLogger(getClass()); } public class BaseController extends AbstractController{