查询慢问题解决

src/main/java/com/yc/education/controller/admin/ActivityNewsController.java

@@ -41,121 +41,115 @@ public class ActivityNewsController {
 
     /**
      * 活动资讯列表
-     * @param typeId 类别id
-     * @param tagId  标签
-     * @param title  名称
-     * @param pageNum 页码
+     *
+     * @param typeId   类别id
+     * @param tagId    标签
+     * @param title    名称
+     * @param pageNum  页码
      * @param pageSize 条数
      * @return
      */
     @RequestMapping("activityNewsList.html")
     public ModelAndView activityNewsList(
-            @RequestParam(defaultValue = "")Integer typeId,
-            @RequestParam(defaultValue = "")Integer tagId,
-            @RequestParam(defaultValue = "")String  title,
-            @RequestParam(defaultValue = "1")Integer pageNum,
-            @RequestParam(defaultValue = "10")Integer pageSize){
+            @RequestParam(defaultValue = "") Integer typeId,
+            @RequestParam(defaultValue = "") Integer tagId,
+            @RequestParam(defaultValue = "") String title,
+            @RequestParam(defaultValue = "1") Integer pageNum,
+            @RequestParam(defaultValue = "10") Integer pageSize) {
 
-        ModelAndView  mav  = new ModelAndView();
+        ModelAndView mav = new ModelAndView();
 
-        List<ActivityNews> listActivityNewsInfo = iActivityNewsService.listActivityNewsInfo(typeId,tagId,title,pageNum,pageSize);//查询资讯信息
+        List<ActivityNews> listActivityNewsInfo = iActivityNewsService.listActivityNewsInfo(typeId, tagId, title, pageNum, pageSize);//查询资讯信息
 
         List<ActivityType> listActivityTypeInfo = iActivityTypeService.listActivityTypeInfo();//查询类别信息
 
-        List<ActivityTag> listActivityTagInfo   = iActivityTagService.listActivityTagInfo();//查询标签信息
-
-          long startTime = System.nanoTime();
-
-
-
-            for (ActivityType activityType : listActivityTypeInfo){
+        List<ActivityTag> listActivityTagInfo = iActivityTagService.listActivityTagInfo();//查询标签信息
 
-                for (ActivityNews activityNews  : listActivityNewsInfo){
 
-                ActivityType activityType1 = iActivityTypeService.selectByKey(activityNews.getTypeid());//根据activityNews.getTypeid()查询ActivityType信息
-                /*非空判断*/
-                if (activityType1 != null){
-                    activityNews.setTypeName(activityType1.getTypename());//设置类型名
+        for (ActivityNews activityNews : listActivityNewsInfo) {
+            for (ActivityType activityType : listActivityTypeInfo) {
+                if(activityNews.getTypeid()==activityType.getId()){
+                    activityNews.setTypeName(activityType.getTypename());//设置类型名
+                    break;
                 }
-
-                for (ActivityTag activityTag : listActivityTagInfo){
-
-                    ActivityTag activityTag1 = iActivityTagService.selectByKey(activityNews.getTagid());//同上
-                    if (activityTag1 != null){
-                        activityNews.setTagName(activityTag1.getTagname());//设置标签名
-                    }
+            }
+            for (ActivityTag activityTag : listActivityTagInfo) {
+                if(activityNews.getTagid() == activityTag.getId()){
+                    activityNews.setTagName(activityTag.getTagname());//设置标签名
+                    break;
                 }
             }
         }
-         long endTime = System.nanoTime();
-        long time = endTime-startTime;
-        System.out.print(time+"=======");
-        mav.addObject("pageInfo",new PageInfo<ActivityNews>(listActivityNewsInfo));
-        mav.addObject("typeInfo",listActivityTypeInfo);
-        mav.addObject("tagInfo",listActivityTagInfo);
-        mav.addObject("typeId",typeId);
-        mav.addObject("tagId",tagId);
-        mav.addObject("title",title);
-        mav.addObject("pageNum",pageNum);
-        mav.addObject("pageSize",pageSize);
+
+        mav.addObject("pageInfo", new PageInfo<ActivityNews>(listActivityNewsInfo));
+        mav.addObject("typeInfo", listActivityTypeInfo);
+        mav.addObject("tagInfo", listActivityTagInfo);
+        mav.addObject("typeId", typeId);
+        mav.addObject("tagId", tagId);
+        mav.addObject("title", title);
+        mav.addObject("pageNum", pageNum);
+        mav.addObject("pageSize", pageSize);
         return mav;
 
     }
 
     /**
      * 添加  跳转
+     *
      * @return
      */
     @RequestMapping("activityNewsAdd.html")
-    public ModelAndView activityNewsAdd(){
+    public ModelAndView activityNewsAdd() {
 
         ModelAndView mav = new ModelAndView();
 
         List<ActivityType> listActivityTypeInfo = iActivityTypeService.listActivityTypeInfo();//查询类型
 
-        List<ActivityTag> listActivityTagInfo   = iActivityTagService.listActivityTagInfo();//查询标签
+        List<ActivityTag> listActivityTagInfo = iActivityTagService.listActivityTagInfo();//查询标签
 
-        mav.addObject("typeInfo",listActivityTypeInfo);
+        mav.addObject("typeInfo", listActivityTypeInfo);
 
-        mav.addObject("tagInfo",listActivityTagInfo);
+        mav.addObject("tagInfo", listActivityTagInfo);
 
         return mav;
     }
 
     /**
      * 添加 实现
+     *
      * @param activityNews
      * @param request
      * @return
      */
     @RequestMapping("activityNewsAdds.html")
-    public ModelAndView toAdds(ActivityNews activityNews, HttpServletRequest request){
+    public ModelAndView toAdds(ActivityNews activityNews, HttpServletRequest request) {
 
 /*        String rootPath = request.getSession().getServletContext().getRealPath("/");
         String contextPath = request.getSession().getServletContext().getContextPath();
         BaseState state = (BaseState) new ActionEnter(request, rootPath, contextPath, "admin")
                 .invoke(ActionMap.UPLOAD_FILE);*/
-       // activityNews.setActivityimage(state.getInfo("url"));
+        // activityNews.setActivityimage(state.getInfo("url"));
 
         activityNews.setBrowsingvolume(0);
         activityNews.setReleasetime(new Date());
 
         String[] imgStr = activityNews.getActivityimage().split(",");
 
-        if (imgStr.length >3){  //最多上传三张图片，判断一下
-            return ViewUtil.returnview(0,"activityNewsList.html","活动资讯列表");
+        if (imgStr.length > 3) {  //最多上传三张图片，判断一下
+            return ViewUtil.returnview(0, "activityNewsList.html", "活动资讯列表");
         }
         int row = iActivityNewsService.save(activityNews);
-        return ViewUtil.returnview(row,"activityNewsList.html","活动资讯列表");
+        return ViewUtil.returnview(row, "activityNewsList.html", "活动资讯列表");
     }
 
     /**
      * 修改  跳转
+     *
      * @param id
      * @return
      */
     @RequestMapping("activityNewsUpdate.html")
-    public ModelAndView activityNewsUpdate(Integer id){
+    public ModelAndView activityNewsUpdate(Integer id) {
 
         ModelAndView mav = new ModelAndView();
 
@@ -165,78 +159,81 @@ public class ActivityNewsController {
 
         String[] imgStr = activityNews.getActivityimage().split(",");//将查出的图片字符串路径，存到数组中
 
-        for (String str : imgStr){  //将以","隔开的图片存放到list中，传给前台
+        for (String str : imgStr) {  //将以","隔开的图片存放到list中，传给前台
             list.add(str);
         }
 
         List<ActivityType> listActivityTypeInfo = iActivityTypeService.listActivityTypeInfo();//查询类型
 
-        List<ActivityTag> listActivityTagInfo   = iActivityTagService.listActivityTagInfo();//查询标签
+        List<ActivityTag> listActivityTagInfo = iActivityTagService.listActivityTagInfo();//查询标签
 
-        mav.addObject("list",list);
-        mav.addObject("activityNews",activityNews);
-        mav.addObject("typeInfo",listActivityTypeInfo);
-        mav.addObject("tagInfo",listActivityTagInfo);
+        mav.addObject("list", list);
+        mav.addObject("activityNews", activityNews);
+        mav.addObject("typeInfo", listActivityTypeInfo);
+        mav.addObject("tagInfo", listActivityTagInfo);
 
         return mav;
     }
 
     /**
      * 修改   实现
+     *
      * @param activityNews
      * @return
      */
     @RequestMapping("activityNewsUpdates.html")
-    public ModelAndView toUpdates(ActivityNews activityNews){
+    public ModelAndView toUpdates(ActivityNews activityNews) {
 
-        String [] imgStr = activityNews.getActivityimage().split(",");//将图片保存到数组中，用来判断图片个数
+        String[] imgStr = activityNews.getActivityimage().split(",");//将图片保存到数组中，用来判断图片个数
 
-        if (imgStr.length > 3){   //图片个数大于3，返回操作失败
+        if (imgStr.length > 3) {   //图片个数大于3，返回操作失败
 
-            return ViewUtil.returnview(0,"activityNewsList.html","活动资讯列表");
+            return ViewUtil.returnview(0, "activityNewsList.html", "活动资讯列表");
         }
 
         int row = iActivityNewsService.updateNotNull(activityNews);//修改
 
-        return ViewUtil.returnview(row,"activityNewsList.html","活动资讯列表");
+        return ViewUtil.returnview(row, "activityNewsList.html", "活动资讯列表");
 
     }
 
     /**
      * 删除
+     *
      * @param id
      * @return
      */
     @ResponseBody
     @RequestMapping("activityNewsDel.html")
-    public AjaxMessage<Object> providerDel(String id){
+    public AjaxMessage<Object> providerDel(String id) {
 
         AjaxMessage<Object> am = new AjaxMessage();
-        String [] idlist  = id.split(",");
+        String[] idlist = id.split(",");
 
         int row = 0;
 
-        for (String string  : idlist){
+        for (String string : idlist) {
             row += iActivityNewsService.delete(Integer.valueOf(string));
         }
-        if (row > 0 ){
+        if (row > 0) {
             am.setIs(true);
             am.setMsg("删除成功 ");
-        }else {
+        } else {
             am.setIs(false);
             am.setMsg("删除失败");
         }
 
-        return  am;
+        return am;
     }
 
     /**
      * 上传图片到本地服务器
+     *
      * @param photo
      * @return
      */
-    @RequestMapping(value = "/uploadImg",method = RequestMethod.POST,produces = {"application/json;charset=UTF-8"})
-    public ApiMessage<Object> uploadImg(@RequestParam MultipartFile[] photo){
+    @RequestMapping(value = "/uploadImg", method = RequestMethod.POST, produces = {"application/json;charset=UTF-8"})
+    public ApiMessage<Object> uploadImg(@RequestParam MultipartFile[] photo) {
 
         String folder = "upload/activity";//创建文件夹存放上传图片
         try {