重构app版本获取

src/main/java/cn/meteor/beyondclouds/modules/app/controller/AppVersionApi.java → src/main/java/cn/meteor/beyondclouds/modules/app/api/AppVersionApi.java

-package cn.meteor.beyondclouds.modules.app.controller;
+package cn.meteor.beyondclouds.modules.app.api;
 
 
 import cn.meteor.beyondclouds.core.annotation.Anonymous;
 import cn.meteor.beyondclouds.core.api.Response;
 import cn.meteor.beyondclouds.modules.app.entity.AppVersion;
+import cn.meteor.beyondclouds.modules.app.exception.VersionServiceException;
 import cn.meteor.beyondclouds.modules.app.service.IAppVersionService;
+import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 
-import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.RestController;
 
 /**
@@ -21,6 +22,7 @@ import org.springframework.web.bind.annotation.RestController;
  * @author 段启岩
  * @since 2020-03-19
  */
+@Api(tags = "app接口")
 @RestController
 @RequestMapping("/api")
 public class AppVersionApi {
@@ -33,17 +35,15 @@ public class AppVersionApi {
     }
 
     @Anonymous
-    @ApiOperation("获取版本号")
+    @ApiOperation("获取最新版本信息")
     @GetMapping("/app/version/latest")
     public Response<AppVersion> getLatestVersion() {
-        // TODO 获取最新版本信息
-        AppVersion appVersion = appVersionService.getAppVersion();
-
-        if (appVersion == null) {
-            return Response.error();
+        try {
+            AppVersion appVersion = appVersionService.getLatestVersion();
+            return Response.success(appVersion);
+        } catch (VersionServiceException e) {
+            return Response.error(e);
         }
-        return Response.success(appVersion);
     }
-
 }
 

src/main/java/cn/meteor/beyondclouds/modules/app/enums/VersionErrorCode.java

+package cn.meteor.beyondclouds.modules.app.enums;
+
+import cn.meteor.beyondclouds.core.IErrorCode;
+
+/**
+ * @author meteor
+ */
+public enum VersionErrorCode implements IErrorCode {
+    VERSION_FETCH_FAILURE(20000, "版本信息获取失败！");
+    private Integer code;
+    private String msg;
+
+    VersionErrorCode(Integer code, String msg) {
+        this.code = code;
+        this.msg = msg;
+    }
+
+    @Override
+    public long code() {
+        return 0;
+    }
+
+    @Override
+    public String msg() {
+        return null;
+    }
+}

src/main/java/cn/meteor/beyondclouds/modules/app/exception/VersionServiceException.java

+package cn.meteor.beyondclouds.modules.app.exception;
+
+import cn.meteor.beyondclouds.core.IErrorCode;
+import cn.meteor.beyondclouds.core.exception.ServiceException;
+
+/**
+ * @author meteor
+ */
+public class VersionServiceException extends ServiceException {
+    public VersionServiceException(long errorCode, String errorMsg) {
+        super(errorCode, errorMsg);
+    }
+
+    public VersionServiceException(IErrorCode errorCode) {
+        super(errorCode);
+    }
+}

src/main/java/cn/meteor/beyondclouds/modules/app/mapper/AppVersionMapper.java

@@ -20,5 +20,5 @@ public interface AppVersionMapper extends BaseMapper<AppVersion> {
      * 通过sql语句根据时间降序排序数据后，限制返回最新一条
      * @return
      */
-    AppVersion getVersionMapper();
+    AppVersion getLatestVersion();
 }

src/main/java/cn/meteor/beyondclouds/modules/app/mapper/xml/AppVersionMapper.xml

@@ -2,7 +2,7 @@
 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
 <mapper namespace="cn.meteor.beyondclouds.modules.app.mapper.AppVersionMapper">
 
-    <select id="getVersionMapper" resultType="cn.meteor.beyondclouds.modules.app.entity.AppVersion">
+    <select id="getLatestVersion" resultType="cn.meteor.beyondclouds.modules.app.entity.AppVersion">
         select * from app_version order by create_time desc limit 1
     </select>
 

src/main/java/cn/meteor/beyondclouds/modules/app/service/IAppVersionService.java

 package cn.meteor.beyondclouds.modules.app.service;
 
 import cn.meteor.beyondclouds.modules.app.entity.AppVersion;
+import cn.meteor.beyondclouds.modules.app.exception.VersionServiceException;
 import com.baomidou.mybatisplus.extension.service.IService;
 
 /**
@@ -14,8 +15,8 @@ import com.baomidou.mybatisplus.extension.service.IService;
 public interface IAppVersionService extends IService<AppVersion> {
 
     /**
-     * 根据时间倒序查询最新版本
+     * 根据最新版本信息
      * @return AppVersion
      */
-    AppVersion getAppVersion();
+    AppVersion getLatestVersion() throws VersionServiceException;
 }

src/main/java/cn/meteor/beyondclouds/modules/app/service/impl/AppVersionServiceImpl.java

 package cn.meteor.beyondclouds.modules.app.service.impl;
 
 import cn.meteor.beyondclouds.modules.app.entity.AppVersion;
+import cn.meteor.beyondclouds.modules.app.enums.VersionErrorCode;
+import cn.meteor.beyondclouds.modules.app.exception.VersionServiceException;
 import cn.meteor.beyondclouds.modules.app.mapper.AppVersionMapper;
 import cn.meteor.beyondclouds.modules.app.service.IAppVersionService;
-import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
@@ -22,22 +23,21 @@ public class AppVersionServiceImpl extends ServiceImpl<AppVersionMapper, AppVers
     private AppVersionMapper appVersionMapper;
 
     @Autowired
-    public void setAppVersionMapper(AppVersionMapper appVersionMapper) {
+    public AppVersionServiceImpl(AppVersionMapper appVersionMapper) {
         this.appVersionMapper = appVersionMapper;
     }
+
     /**
-     * 根据时间倒序查询最新版本
+     * 查询最新版本信息
      * @return AppVersion
      */
     @Override
-    public AppVersion getAppVersion() {
-
-        AppVersion appVersion = appVersionMapper.getVersionMapper();
-
-        if (appVersion == null) {
+    public AppVersion getLatestVersion() throws VersionServiceException {
+        AppVersion appVersion = appVersionMapper.getLatestVersion();
 
+        if (null == appVersion) {
+            throw new VersionServiceException(VersionErrorCode.VERSION_FETCH_FAILURE);
         }
         return appVersion;
-
     }
 }