commit 1f457dc4bcf39c5e2fc1bf13426b77a00d085e78
author 22301071 <22301071@bjtu.edu.cn> Tue Apr 15 17:35:55 2025 +0800
committer 22301071 <22301071@bjtu.edu.cn> Tue Apr 15 18:36:23 2025 +0800
tree 8e0046214e35859914d9ff55f10039c4563f57ed
parent f4d92767ddfe189e6b124b709da44e325a484bc5

complete_postservice_test_code

Change-Id: If176a0ac12d71e7695635761e7199c03926e4c85

src/main/java/com/example/g8backend/service/IPostService.java

diff --git a/src/main/java/com/example/g8backend/service/IPostService.java b/src/main/java/com/example/g8backend/service/IPostService.java
index 58c13dc..f81053e 100644
--- a/src/main/java/com/example/g8backend/service/IPostService.java
+++ b/src/main/java/com/example/g8backend/service/IPostService.java
@@ -2,9 +2,14 @@
 
 import com.example.g8backend.entity.Post;
 import com.baomidou.mybatisplus.extension.service.IService;
-
 import java.util.List;
 
 public interface IPostService extends IService<Post> {
     List<Post> getPostsByUserId(Long userId);
+    Post createPost(Post post);
+    Post updatePost(Post post);
+    List<Post> getPostsByType(String postType);
+    Long getPostLikeCount(Long postId);
+    void likePost(Long userId, Long postId);
+    void unlikePost(Long userId, Long postId);
 }

src/main/java/com/example/g8backend/service/impl/PostServiceImpl.java

diff --git a/src/main/java/com/example/g8backend/service/impl/PostServiceImpl.java b/src/main/java/com/example/g8backend/service/impl/PostServiceImpl.java
index 90d353a..09a471e 100644
--- a/src/main/java/com/example/g8backend/service/impl/PostServiceImpl.java
+++ b/src/main/java/com/example/g8backend/service/impl/PostServiceImpl.java
@@ -1,21 +1,63 @@
 package com.example.g8backend.service.impl;
 
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.example.g8backend.entity.Post;
 import com.example.g8backend.mapper.PostMapper;
 import com.example.g8backend.service.IPostService;
 import jakarta.annotation.Resource;
 import org.springframework.stereotype.Service;
-
+import java.sql.Timestamp;
 import java.util.List;
 
 @Service
 public class PostServiceImpl extends ServiceImpl<PostMapper, Post> implements IPostService {
-    @Resource
-    private PostMapper postMapper;
+    
+    private final PostMapper postMapper;
+
+    public PostServiceImpl(PostMapper postMapper) {
+        this.postMapper = postMapper;
+        this.baseMapper = postMapper; // 重要：设置 baseMapper
+    }
 
     @Override
     public List<Post> getPostsByUserId(Long userId) {
         return postMapper.getPostsByUserId(userId);
     }
+
+    @Override
+    public Post createPost(Post post) {
+        post.setCreatedAt(new Timestamp(System.currentTimeMillis()));
+        save(post);
+        return post;
+    }
+
+    @Override 
+    public Post updatePost(Post post) {
+        updateById(post);
+        return getById(post.getPostId());
+    }
+
+    @Override
+    public List<Post> getPostsByType(String postType) {
+        QueryWrapper<Post> wrapper = new QueryWrapper<>();
+        wrapper.eq("post_type", postType);
+        return list(wrapper);
+    }
+
+    @Override
+    public Long getPostLikeCount(Long postId) {
+        // TODO: 需要实现post_likes表的查询
+        return 0L;
+    }
+
+    @Override
+    public void likePost(Long userId, Long postId) {
+        // TODO: 需要实现post_likes表的插入
+    }
+
+    @Override
+    public void unlikePost(Long userId, Long postId) {
+        // TODO: 需要实现post_likes表的删除
+    }
 }