完善我的求助我的帮助分页逻辑

src/main/java/com/share/help/controller/ActivityController.java

@@ -96,11 +96,12 @@ public class ActivityController {
      * @return 返回统计结果
      */
     @GetMapping(Constants.ACTIVITY_INTERFACE_SEEK_HELP)
-    public JSONResponse<DefaultRes, List<SeekHelpSum>> seekHelp(@CookieValue(Constants.USER_COOKIE) String userId){
-        if(userId==null){
+    public JSONResponse<DefaultRes, Page<List<SeekHelpSum>>> seekHelp(SeekHelpForm seekHelpForm,@CookieValue(Constants.USER_COOKIE) String userId){
+        if(userId==null||seekHelpForm.getCurrentPage()==null){
             return new JSONResponse<>(DefaultRes.fail,Result.FAIL);
         }else{
-            return activityService.seekHelpCount(userId);
+            seekHelpForm.setUserId(userId);
+            return activityService.seekHelpCount(seekHelpForm);
         }
     }
 

src/main/java/com/share/help/dao/ActivityMapper.java

@@ -63,7 +63,10 @@ public interface ActivityMapper {
     FindActivityRes count(@Param("pageSize") Integer pageSize,@Param("userId") String userId,@Param("title") String title);
 
     //求助信息
-    List<SeekHelpSum> seekHelp(@Param("userId") String userId);
+    List<SeekHelpSum> seekHelp(@Param("userId") String userId,@Param("start") Integer start, @Param("count") Integer count);
+
+    //统计分页信息
+    Page<List<SeekHelpSum>> seekHelpCount(@Param("pageSize") Integer pageSize,@Param("userId") String userId);
 
     //查找管理员信息
     List<ManagerActivityRes> queryActivity(@Param("start") Integer start, @Param("count") Integer count);

src/main/java/com/share/help/form/SeekHelpForm.java

@@ -0,0 +1,23 @@
+package com.share.help.form;
+
+public class SeekHelpForm {
+    private String userId;
+
+    private Integer currentPage;
+
+    public String getUserId() {
+        return userId;
+    }
+
+    public void setUserId(String userId) {
+        this.userId = userId;
+    }
+
+    public Integer getCurrentPage() {
+        return currentPage;
+    }
+
+    public void setCurrentPage(Integer currentPage) {
+        this.currentPage = currentPage;
+    }
+}

src/main/java/com/share/help/service/ActivityService.java

@@ -217,9 +217,12 @@ public class ActivityService{
      * 求助信息统计
      * @return 返回统计结果
      */
-    public JSONResponse<DefaultRes,List<SeekHelpSum>> seekHelpCount(String userId){
-        List<SeekHelpSum> seekHelpSums=activityMapper.seekHelp(userId);
-        return new JSONResponse<DefaultRes,List<SeekHelpSum>>(DefaultRes.ok,Result.OK).setBody(seekHelpSums);
+    public JSONResponse<DefaultRes,Page<List<SeekHelpSum>>> seekHelpCount(SeekHelpForm seekHelpForm){
+        Page<List<SeekHelpSum>> page=activityMapper.seekHelpCount(helpPageSize,seekHelpForm.getUserId());
+        List<SeekHelpSum> seekHelpSums=activityMapper.seekHelp(seekHelpForm.getUserId(),(seekHelpForm.getCurrentPage()-1)*helpPageSize,helpPageSize);
+        page.setBody(seekHelpSums);
+        page.setCurrentPage(seekHelpForm.getCurrentPage());
+        return new JSONResponse<DefaultRes,Page<List<SeekHelpSum>>>(DefaultRes.ok,Result.OK).setBody(page);
     }
 
     /**
@@ -240,6 +243,7 @@ public class ActivityService{
      */
     public JSONResponse<DefaultRes,Page<List<HelpRes>>> queryHelp(QueryHelpForm queryHelpForm){
         Page<List<HelpRes>> page=activityHistoryMapper.count(queryHelpForm.getUserId(),helpPageSize);
+        page.setCurrentPage(queryHelpForm.getCurrentPage());
         List<HelpRes> helpRes=activityHistoryMapper.queryMyHelp((queryHelpForm.getCurrentPage()-1)*helpPageSize,helpPageSize,queryHelpForm.getUserId());
         page.setBody(helpRes);
         return new JSONResponse<DefaultRes,Page<List<HelpRes>>>(DefaultRes.ok,Result.OK).setBody(page);

src/main/resources/mapping/ActivityHistoryMapper.xml

@@ -39,7 +39,9 @@
 
 <!--    计算分页-->
     <select id="count" resultType="com.share.help.res.Page">
-        select count(distinct activity.activity_id) as count,ceil(count(distinct activity.activity_id)/#{pageSize}) as totalPage from
+        select count(distinct activity.activity_id) as count,
+               ceil(count(distinct activity.activity_id)/#{pageSize}) as totalPage,
+               #{pageSize} as pageSize from
         activity,activity_history where activity_history.user_id=#{userId} and activity.activity_id=activity_history.activity_id
     </select>
 

src/main/resources/mapping/ActivityMapper.xml

@@ -96,6 +96,43 @@
     </select>
 
 
+    <select id="seekHelpCount" resultType="com.share.help.res.Page">
+        select count(activity_id) as  count,ceil(count(activity_id)/#{pageSize}) as totalPage,#{pageSize} as pageSize from(
+select activity_id,
+       activity_img,
+       seek_help_time,
+       title,
+       content,
+       sum(case activity_status when 'apply' then count else 0 end)    as 'apply',
+       sum(case activity_status when 'join' then count else 0 end)     as 'join',
+       sum(case activity_status when 'complete' then count else 0 end) as 'complete'
+from (select activity.activity_id,
+             activity_img,
+             seek_help_time,
+             title,
+             content,
+             activity_status,
+             count(activity_status) as count
+      from activity,
+           activity_history
+      where activity.activity_id = activity_history.activity_id
+        and activity.user_id = #{userId}
+      group by activity_id, activity_status) a
+group by activity_id
+union all
+select activity_id,
+       activity_img,
+       seek_help_time,
+       title,
+       content,
+       0,
+       0,
+       0
+from activity
+where user_id = #{userId}
+  and activity_id not in (select activity_id from activity_history)) b
+    </select>
+
 <!--    查询用户的求助信息-->
     <select id="seekHelp" resultMap="seekHelpMap">
         select activity_id,activity_img,seek_help_time,title,content,
@@ -109,6 +146,7 @@ from (
 
 select activity_id,activity_img,seek_help_time,title,content,0,0,0 from activity where user_id=#{userId}
 and activity_id not in(select activity_id from activity_history) order by  seek_help_time desc
+limit #{start},#{count}
      </select>
 
 <!--    获取志愿者列表-->

src/test/java/com/share/help/HelpApplicationTests.java

@@ -181,8 +181,10 @@ class HelpApplicationTests {
 //	求助信息统计
 	@Test
 	public void testSeekHelpCount(){
-		List<SeekHelpSum> seekHelpSums=activityMapper.seekHelp("123");
-		Assertions.assertFalse(seekHelpSums.isEmpty());
+		Page<List<SeekHelpSum>> page=activityMapper.seekHelpCount(3,"123");
+		Assertions.assertEquals(10, (long) page.getCount());
+		List<SeekHelpSum> seekHelpSums=activityMapper.seekHelp("123",0,3);
+		Assertions.assertEquals(seekHelpSums.size(),3);
 	}