update

whole-estate/src/main/java/com/example/wholeestate/controller/ActivityController.java

         responseBean = iActivityService.getList(pageNum, pageSize, null,null,null);
         return responseBean;
     }
+
+    @RequestMapping(value = "/wx/activity/{activityId}", method = RequestMethod.GET)
+    @ApiOperation(value = "活动详情", notes = "活动详情")
+    @ApiImplicitParams({
+            @ApiImplicitParam(paramType = "path", dataTypeClass = String.class, name = "activityId", value = "activityId活动id")
+    })
+    public ResponseBean getWxById(@PathVariable String activityId) {
+        ResponseBean responseBean = new ResponseBean();
+        responseBean = iActivityService.getWxActivityId(activityId);
+        return responseBean;
+    }
 }

whole-estate/src/main/java/com/example/wholeestate/service/IActivityService.java

      */
     ResponseBean getWxActivityList(Integer pageNum, Integer pageSize);
 
-
+    /**
+     * 微信 精彩活动详情
+     * @param activityId
+     * @return
+     */
+    ResponseBean getWxActivityId(String activityId);
 }

whole-estate/src/main/java/com/example/wholeestate/service/impl/ActivityServiceImpl.java

         responseBean.addSuccess(activityIPage);
         return responseBean;
     }
+
+    @Override
+    public  ResponseBean getWxActivityId(String activityId) {
+        ResponseBean responseBean = new ResponseBean();
+
+        QueryWrapper<Activity> activityQueryWrapper = new QueryWrapper<>();
+        activityQueryWrapper.eq("activity_id", activityId);
+        Activity activity = activityMapper.selectOne(activityQueryWrapper);
+        if (null == activity) {
+            responseBean.addError("活动不存在!");
+            return responseBean;
+        }
+
+        responseBean.addSuccess(activity);
+        return responseBean;
+    }
 }