将删除动态优化为批量删除动态

src/main/java/com/bao/dating/controller/PostController.java

@@ -45,14 +45,14 @@ public class PostController {
     }
 
     /**
-     * 删除动态
+     * 批量删除动态
      *
-     * @param postId 动态ID
+     * @param postIds 动态ID
      * @return 删除结果
      */
-    @DeleteMapping("/{postId}")
-    public Result<String> deleteById(@PathVariable Long postId){
-        postService.deletePostById(postId);
+    @DeleteMapping
+    public Result<String> deleteById(@RequestParam List<Long> postIds){
+        postService.deletePostById(postIds);
         return Result.success(ResultCode.SUCCESS_DELETE, "动态删除成功", null);
     }
 

src/main/java/com/bao/dating/mapper/PostMapper.java

@@ -4,6 +4,8 @@ import com.bao.dating.pojo.entity.Post;
 import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Param;
 
+import java.util.List;
+
 @Mapper
 public interface PostMapper {
     /**
@@ -16,9 +18,9 @@ public interface PostMapper {
     /**
      * 根据ID删除动态
      *
-     * @param postId 动态ID
+     * @param postIds 动态ID
      */
-    void deletePostById(@Param("postId") Long postId);
+    void deletePostByIds(@Param("postIds") List<Long> postIds);
 
     /**
      * 根据ID查询动态

src/main/java/com/bao/dating/service/PostService.java

@@ -25,10 +25,10 @@ public interface PostService {
 
     /**
      * 删除动态
-     * @param postId 动态ID
+     * @param postIds 动态ID
      * @return 删除的动态对象
      */
-    void deletePostById(Long postId);
+    void deletePostById(List<Long> postIds);
 
     /**
      * 查询动态详情（用于编辑）

src/main/java/com/bao/dating/service/impl/PostServiceImpl.java

@@ -12,6 +12,7 @@ import com.bao.dating.util.FileUtil;
 import org.springframework.beans.BeanUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.multipart.MultipartFile;
 
 import java.io.IOException;
@@ -159,12 +160,14 @@ public class PostServiceImpl implements PostService {
     /**
      * 删除动态
      *
-     * @param postId 动态ID
+     * @param postIds 动态ID
      * @return 删除的动态对象
      */
     @Override
-    public void deletePostById(Long postId) {
-        postMapper.deletePostById(postId);
+    @Transactional(rollbackFor = Exception.class)
+    public void deletePostById(List<Long> postIds) {
+        // 批量删除动态
+        postMapper.deletePostByIds(postIds);
     }
 
     @Override

src/main/resources/com/bao/dating/mapper/PostMapper.xml

@@ -29,8 +29,23 @@
     </insert>
 
     <!--动态删除-->
-    <delete id="deletePostById">
-        DELETE FROM post WHERE post_id = #{postId}
+    <delete id="deletePostByIds">
+        DELETE FROM post WHERE post_id IN
+        <foreach item="postId" index="index" collection="postIds" separator="," open="(" close=")">
+            #{postId}
+        </foreach>
+    </delete>
+    <!--删除收藏记录-->
+    <delete id="1">
+        DELETE FROM post_favorite WHERE post_id = #{postId}
+    </delete>
+    <!--删除点赞记录-->
+    <delete id="2">
+        DELETE FROM post_like WHERE post_id = #{postId}
+    </delete>
+    <!--动态评论删除-->
+    <delete id="3">
+        DELETE FROM comments WHERE post_id = #{postId}
     </delete>
 
     <!--动态查询-->