demo通用返回结果改造

mall-admin/src/main/java/com/macro/mall/config/Swagger2Config.java

@@ -69,7 +69,7 @@ public class Swagger2Config {
                 .build();
     }
 
-    List<SecurityReference> defaultAuth() {
+    private List<SecurityReference> defaultAuth() {
         List<SecurityReference> result = new ArrayList<>();
         AuthorizationScope authorizationScope = new AuthorizationScope("global", "accessEverything");
         AuthorizationScope[] authorizationScopes = new AuthorizationScope[1];

mall-demo/src/main/java/com/macro/mall/demo/controller/DemoController.java

 package com.macro.mall.demo.controller;
 
+import com.macro.mall.demo.dto.CommonPage;
 import com.macro.mall.demo.dto.CommonResult;
 import com.macro.mall.demo.dto.PmsBrandDto;
 import com.macro.mall.demo.service.DemoService;
+import com.macro.mall.model.PmsBrand;
 import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
 import org.slf4j.Logger;
@@ -14,6 +16,8 @@ import org.springframework.validation.BindingResult;
 import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.*;
 
+import java.util.List;
+
 /**
  * 测试controller
  */
@@ -28,24 +32,24 @@ public class DemoController {
     @ApiOperation(value = "获取全部品牌列表")
     @RequestMapping(value = "/brand/listAll", method = RequestMethod.GET)
     @ResponseBody
-    public Object getBrandList() {
-        return new CommonResult().success(demoService.listAllBrand());
+    public CommonResult<List<PmsBrand>> getBrandList() {
+        return CommonResult.success(demoService.listAllBrand());
     }
 
     @ApiOperation(value = "添加品牌")
     @RequestMapping(value = "/brand/create", method = RequestMethod.POST)
     @ResponseBody
-    public Object createBrand(@Validated @RequestBody PmsBrandDto pmsBrand, BindingResult result) {
+    public CommonResult createBrand(@Validated @RequestBody PmsBrandDto pmsBrand, BindingResult result) {
         if (result.hasErrors()) {
-            return new CommonResult().validateFailed(result.getFieldError().getDefaultMessage());
+            return CommonResult.validateFailed(result.getFieldError().getDefaultMessage());
         }
         CommonResult commonResult;
         int count = demoService.createBrand(pmsBrand);
         if (count == 1) {
-            commonResult = new CommonResult().success(pmsBrand);
+            commonResult = CommonResult.success(pmsBrand);
             LOGGER.debug("createBrand success:{}", pmsBrand);
         } else {
-            commonResult = new CommonResult().failed();
+            commonResult = CommonResult.failed("操作失败");
             LOGGER.debug("createBrand failed:{}", pmsBrand);
         }
         return commonResult;
@@ -54,17 +58,17 @@ public class DemoController {
     @ApiOperation(value = "更新品牌")
     @RequestMapping(value = "/brand/update/{id}", method = RequestMethod.POST)
     @ResponseBody
-    public Object updateBrand(@PathVariable("id") Long id, @Validated @RequestBody PmsBrandDto pmsBrandDto,BindingResult result) {
+    public CommonResult updateBrand(@PathVariable("id") Long id, @Validated @RequestBody PmsBrandDto pmsBrandDto,BindingResult result) {
         if(result.hasErrors()){
-            return new CommonResult().validateFailed(result.getFieldError().getDefaultMessage());
+            return CommonResult.validateFailed(result.getFieldError().getDefaultMessage());
         }
         CommonResult commonResult;
         int count = demoService.updateBrand(id, pmsBrandDto);
         if (count == 1) {
-            commonResult = new CommonResult().success(pmsBrandDto);
+            commonResult = CommonResult.success(pmsBrandDto);
             LOGGER.debug("updateBrand success:{}", pmsBrandDto);
         } else {
-            commonResult = new CommonResult().failed();
+            commonResult = CommonResult.failed("操作失败");
             LOGGER.debug("updateBrand failed:{}", pmsBrandDto);
         }
         return commonResult;
@@ -73,29 +77,30 @@ public class DemoController {
     @ApiOperation(value = "删除品牌")
     @RequestMapping(value = "/brand/delete/{id}", method = RequestMethod.GET)
     @ResponseBody
-    public Object deleteBrand(@PathVariable("id") Long id) {
+    public CommonResult deleteBrand(@PathVariable("id") Long id) {
         int count = demoService.deleteBrand(id);
         if (count == 1) {
             LOGGER.debug("deleteBrand success :id={}", id);
-            return new CommonResult().success(null);
+            return CommonResult.success(null);
         } else {
             LOGGER.debug("deleteBrand failed :id={}", id);
-            return new CommonResult().failed();
+            return CommonResult.failed("操作失败");
         }
     }
 
     @ApiOperation(value = "分页获取品牌列表")
     @RequestMapping(value = "/brand/list", method = RequestMethod.GET)
     @ResponseBody
-    public Object listBrand(@RequestParam(value = "pageNum", defaultValue = "1") Integer pageNum,
-                            @RequestParam(value = "pageSize", defaultValue = "3") Integer pageSize) {
-        return new CommonResult().pageSuccess(demoService.listBrand(pageNum, pageSize));
+    public CommonResult<CommonPage<PmsBrand>> listBrand(@RequestParam(value = "pageNum", defaultValue = "1") Integer pageNum,
+                                                        @RequestParam(value = "pageSize", defaultValue = "3") Integer pageSize) {
+        List<PmsBrand> brandList = demoService.listBrand(pageNum, pageSize);
+        return CommonResult.success(CommonPage.restPage(brandList));
     }
 
     @ApiOperation(value = "根据编号查询品牌信息")
     @RequestMapping(value = "/brand/{id}", method = RequestMethod.GET)
     @ResponseBody
-    public Object brand(@PathVariable("id") Long id) {
-        return new CommonResult().success(demoService.getBrand(id));
+    public CommonResult<PmsBrand> brand(@PathVariable("id") Long id) {
+        return CommonResult.success(demoService.getBrand(id));
     }
 }

mall-demo/src/main/java/com/macro/mall/demo/dto/CommonPage.java

+package com.macro.mall.demo.dto;
+
+import com.github.pagehelper.PageInfo;
+
+import java.util.List;
+
+/**
+ * 分页数据封装类
+ */
+public class CommonPage<T> {
+    private Integer pageNum;
+    private Integer pageSize;
+    private Long totalPage;
+    private List<T> list;
+
+    /**
+     *  将PageHelper分页后的list转为分页信息
+     */
+    public static <T> CommonPage<T> restPage(List<T> list) {
+        CommonPage<T> result = new CommonPage<>();
+        PageInfo<T> pageInfo = new PageInfo<>(list);
+        result.setTotalPage(pageInfo.getTotal() / pageInfo.getPageSize());
+        result.setPageNum(pageInfo.getPageNum());
+        result.setPageSize(pageInfo.getPageSize());
+        result.setList(pageInfo.getList());
+        return result;
+    }
+
+    public Integer getPageNum() {
+        return pageNum;
+    }
+
+    public void setPageNum(Integer pageNum) {
+        this.pageNum = pageNum;
+    }
+
+    public Integer getPageSize() {
+        return pageSize;
+    }
+
+    public void setPageSize(Integer pageSize) {
+        this.pageSize = pageSize;
+    }
+
+    public Long getTotalPage() {
+        return totalPage;
+    }
+
+    public void setTotalPage(Long totalPage) {
+        this.totalPage = totalPage;
+    }
+
+    public List<T> getList() {
+        return list;
+    }
+
+    public void setList(List<T> list) {
+        this.list = list;
+    }
+}

mall-demo/src/main/java/com/macro/mall/demo/dto/CommonResult.java

 package com.macro.mall.demo.dto;
 
-import com.github.pagehelper.PageInfo;
-
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
 /**
  * 通用返回对象
  */
-public class CommonResult {
+public class CommonResult<T> {
     public static final int SUCCESS = 0;
     public static final int FAILED = 1;
     public static final int VALIDATE_FAILED = 2;
     private int code;
     private String message;
-    private Object data;
+    private T data;
 
     /**
      * 普通成功返回
      *
      * @param data 获取的数据
      */
-    public CommonResult success(Object data) {
-        this.code = SUCCESS;
-        this.message = "操作成功";
-        this.data = data;
-        return this;
-    }
-
-    /**
-     * 返回分页成功数据
-     */
-    public CommonResult pageSuccess(List data) {
-        PageInfo pageInfo = new PageInfo(data);
-        long totalPage = pageInfo.getTotal() / pageInfo.getPageSize();
-        Map<String, Object> result = new HashMap<>();
-        result.put("pageSize", pageInfo.getPageSize());
-        result.put("totalPage", totalPage);
-        result.put("pageNum", pageInfo.getPageNum());
-        result.put("list", pageInfo.getList());
-        this.code = SUCCESS;
-        this.message = "操作成功";
-        this.data = result;
-        return this;
+    public static <T> CommonResult<T> success(T data) {
+        CommonResult<T> result = new CommonResult<T>();
+        result.setCode(SUCCESS);
+        result.setData(data);
+        return result;
     }
 
     /**
      * 普通失败提示信息
      */
-    public CommonResult failed() {
-        this.code = FAILED;
-        this.message = "操作失败";
-        return this;
+    public static <T> CommonResult<T> failed(String message) {
+        CommonResult result = new CommonResult();
+        result.setCode(FAILED);
+        result.setMessage(message);
+        return result;
     }
 
     /**
@@ -60,10 +38,11 @@ public class CommonResult {
      *
      * @param message 错误信息
      */
-    public CommonResult validateFailed(String message) {
-        this.code = VALIDATE_FAILED;
-        this.message = message;
-        return this;
+    public static <T> CommonResult<T> validateFailed(String message) {
+        CommonResult result = new CommonResult();
+        result.setCode(VALIDATE_FAILED);
+        result.setMessage(message);
+        return result;
     }
 
     public int getCode() {
@@ -82,11 +61,11 @@ public class CommonResult {
         this.message = message;
     }
 
-    public Object getData() {
+    public T getData() {
         return data;
     }
 
-    public void setData(Object data) {
+    public void setData(T data) {
         this.data = data;
     }
 }