后端代码优化

src/main/java/io/linfeng/modules/admin/controller/AppUserController.java

@@ -8,7 +8,8 @@
  * Copyright (c) 2021-2023 linfeng all rights reserved.
  * 版权所有 ，侵权必究！
  * -----------------------------------
- */package io.linfeng.modules.admin.controller;
+ */
+package io.linfeng.modules.admin.controller;
 
 import java.util.Arrays;
 import java.util.Map;

src/main/java/io/linfeng/modules/app/service/impl/CommentThumbsServiceImpl.java

@@ -46,6 +46,12 @@ public class CommentThumbsServiceImpl extends ServiceImpl<CommentThumbsDao, Comm
         return new PageUtils(page);
     }
 
+    /**
+     * 是否点赞
+     * @param uid
+     * @param id
+     * @return
+     */
     @Override
     public Boolean isThumbs(Integer uid, Long id) {
         CommentThumbsEntity one = baseMapper.selectOne(new LambdaQueryWrapper<CommentThumbsEntity>()
@@ -62,6 +68,11 @@ public class CommentThumbsServiceImpl extends ServiceImpl<CommentThumbsDao, Comm
                 .count();
     }
 
+    /**
+     * 点赞
+     * @param request
+     * @param user
+     */
     @Override
     public void addThumbs(AddThumbsForm request, AppUserEntity user) {
         CommentThumbsEntity one=baseMapper.selectOne(new LambdaQueryWrapper<CommentThumbsEntity>()
@@ -74,9 +85,17 @@ public class CommentThumbsServiceImpl extends ServiceImpl<CommentThumbsDao, Comm
         ct.setUid(user.getUid());
         ct.setCId(request.getId());
         ct.setCreateTime(DateUtil.nowDateTime());
-        this.save(ct);
+        boolean save = this.save(ct);
+        if(!save){
+            throw new LinfengException("点赞失败");
+        }
     }
 
+    /**
+     * 取消点赞
+     * @param request
+     * @param user
+     */
     @Override
     public void cancelThumbs(AddThumbsForm request, AppUserEntity user) {
         baseMapper.delete(new LambdaQueryWrapper<CommentThumbsEntity>()

src/main/java/io/linfeng/modules/app/service/impl/FollowServiceImpl.java

@@ -64,8 +64,7 @@ public class FollowServiceImpl extends ServiceImpl<FollowDao, FollowEntity> impl
         LambdaQueryWrapper<FollowEntity> queryWrapper= Wrappers.lambdaQuery();
         queryWrapper.eq(FollowEntity::getUid,uid);
         queryWrapper.eq(FollowEntity::getFollowUid,id);
-        Integer num = baseMapper.selectCount(queryWrapper);
+        return baseMapper.selectCount(queryWrapper) != 0;
-        return num!=0;
     }
 
     @Override
@@ -79,15 +78,13 @@ public class FollowServiceImpl extends ServiceImpl<FollowDao, FollowEntity> impl
         LambdaQueryWrapper<FollowEntity> lambdaQueryWrapper = Wrappers.lambdaQuery();
         lambdaQueryWrapper.eq(FollowEntity::getUid, uid);
         lambdaQueryWrapper.eq(FollowEntity::getFollowUid, followUid);
-        Integer num = baseMapper.selectCount(lambdaQueryWrapper);
+        if(baseMapper.selectCount(lambdaQueryWrapper) == 0){
-        if(num == 0){
             return 0;
         }
-        LambdaQueryWrapper<FollowEntity> lambdaQueryWrapper2 = Wrappers.lambdaQuery();
+        LambdaQueryWrapper<FollowEntity> wrapper = Wrappers.lambdaQuery();
-        lambdaQueryWrapper2.eq(FollowEntity::getUid, followUid);
+        wrapper.eq(FollowEntity::getUid, followUid);
-        lambdaQueryWrapper2.eq(FollowEntity::getFollowUid, uid);
+        wrapper.eq(FollowEntity::getFollowUid, uid);
-        Integer num2 = baseMapper.selectCount(lambdaQueryWrapper2);
+        return baseMapper.selectCount(wrapper) == 0 ? 2 : 1;
-        return num2==0?2:1;
     }
 
     @Override
@@ -104,7 +101,9 @@ public class FollowServiceImpl extends ServiceImpl<FollowDao, FollowEntity> impl
 
     @Override
     public List<Integer> getFollowUids(AppUserEntity user) {
-        List<FollowEntity> list = this.lambdaQuery().eq(FollowEntity::getUid, user.getUid()).list();
+        List<FollowEntity> list = this.lambdaQuery()
+                .eq(FollowEntity::getUid, user.getUid())
+                .list();
         return list.stream().map(FollowEntity::getFollowUid).collect(Collectors.toList());
     }
 

src/main/java/io/linfeng/modules/app/service/impl/PostCollectionServiceImpl.java

@@ -48,8 +48,9 @@ public class PostCollectionServiceImpl extends ServiceImpl<PostCollectionDao, Po
     @Override
     public Integer collectCount(Integer postId) {
 
-        return baseMapper.selectCount(new LambdaQueryWrapper<PostCollectionEntity>()
+        return this.lambdaQuery()
-                .eq(PostCollectionEntity::getPostId, postId));
+                .eq(PostCollectionEntity::getPostId,postId)
+                .count();
     }
 
     @Override