diff --git a/src/main/java/com/pt5/pthouduan/controller/PostController.java b/src/main/java/com/pt5/pthouduan/controller/PostController.java
index a3a9017..c497d87 100644
--- a/src/main/java/com/pt5/pthouduan/controller/PostController.java
+++ b/src/main/java/com/pt5/pthouduan/controller/PostController.java
@@ -23,7 +23,7 @@
  * @author
  * @since 2025-05-10
  */
-@CrossOrigin(origins = "http://localhost:5173")
+@CrossOrigin(origins = {"http://localhost:5173", "http://localhost:3000"})
 @Controller
 @RequestMapping("/post")
 public class PostController {
@@ -49,7 +49,7 @@
         post.setPostContent(post_content);
         post.setTags(tags);
         post.setRannge(rannge);
-        post.setIsSticky(is_pinned != null && is_pinned);
+        post.setIsPinned(is_pinned != null && is_pinned);
         post.setPostCreatedTime(LocalDateTime.now());
         post.setUpdatedTime(LocalDateTime.now());
         post.setLikes(0);
@@ -146,4 +146,18 @@
     public List<Post> findPinnedPosts() {
         return postService.findPinnedPosts();
     }
+
+   
+
+    // 添加切换置顶状态的新端点
+    @PutMapping("/togglePin/{postid}")
+    @ResponseBody
+    public Boolean togglePinStatus(@PathVariable Integer postid) {
+        Post post = postService.getById(postid);
+        if (post == null) return null;
+
+        boolean newStatus = !post.getIsPinned();
+        boolean result = postService.setPinnedStatus(postid, newStatus);
+        return result ? newStatus : null; // ✅ 返回新状态
+    }
 }
diff --git a/src/main/java/com/pt5/pthouduan/entity/Post.java b/src/main/java/com/pt5/pthouduan/entity/Post.java
index 843800d..64f0c72 100644
--- a/src/main/java/com/pt5/pthouduan/entity/Post.java
+++ b/src/main/java/com/pt5/pthouduan/entity/Post.java
@@ -99,11 +99,11 @@
         this.rannge = rannge;
     }
 
-    public Boolean getIsSticky() {
+    public Boolean getIsPinned() {
         return is_pinned;
     }
 
-    public void setIsSticky(Boolean is_pinned) {
+    public void setIsPinned(Boolean is_pinned) {
         this.is_pinned = is_pinned;
     }
 
diff --git a/src/main/java/com/pt5/pthouduan/mapper/PostMapper.java b/src/main/java/com/pt5/pthouduan/mapper/PostMapper.java
index 6b95c73..0cd0480 100644
--- a/src/main/java/com/pt5/pthouduan/mapper/PostMapper.java
+++ b/src/main/java/com/pt5/pthouduan/mapper/PostMapper.java
@@ -39,7 +39,7 @@
     int decrementLikes(@Param("postid") Integer postid);
 
     // 设置置顶状态
-    int updatePinnedStatus(@Param("postid") Integer postid, @Param("pinned") boolean pinned);
+    int updatePinnedStatus(@Param("postid") Integer postid, @Param("isPinned") boolean isPinned);
 
     // 根据用户ID查询该用户所有帖子
     List<Post> findByUserid(@Param("userid") Long userid);
@@ -47,6 +47,9 @@
     // 查询所有置顶帖子
     List<Post> findPinnedPosts();
 
-    // ✅ 新增：查询所有帖子（置顶优先，时间倒序）
+    // ✅ 查询所有帖子（置顶优先，时间倒序）
     List<Post> selectAllSorted();
+
+    // ✅ 根据帖子ID查询单个帖子（用于 togglePin 等功能）
+    Post selectById(@Param("postid") Integer postid);
 }
diff --git a/src/main/java/com/pt5/pthouduan/service/PostService.java b/src/main/java/com/pt5/pthouduan/service/PostService.java
index fabf254..7db4d26 100644
--- a/src/main/java/com/pt5/pthouduan/service/PostService.java
+++ b/src/main/java/com/pt5/pthouduan/service/PostService.java
@@ -43,4 +43,6 @@
     List<Post> findPinnedPosts();                    // 查找所有置顶帖子
 
     List<Post> getAllPostsSorted();                  // ✅ 获取所有帖子（置顶优先，按时间排序）
+
+    Post getById(Integer postid);
 }
diff --git a/src/main/java/com/pt5/pthouduan/service/impl/PostServiceImpl.java b/src/main/java/com/pt5/pthouduan/service/impl/PostServiceImpl.java
index d1bda7f..37edf51 100644
--- a/src/main/java/com/pt5/pthouduan/service/impl/PostServiceImpl.java
+++ b/src/main/java/com/pt5/pthouduan/service/impl/PostServiceImpl.java
@@ -12,6 +12,7 @@
  * <p>
  *  帖子服务实现类
  * </p>
+ * 提供帖子增删改查、点赞、置顶等功能的业务实现
  *
  * @author 杨蔓
  * @since 2025-04-14
@@ -29,8 +30,8 @@
     }
 
     @Override
-    public boolean deletePost(Integer postid) {
-        return postMapper.deleteByPostid(postid) > 0;
+    public boolean deletePost(Integer postId) {
+        return postMapper.deleteByPostid(postId) > 0;
     }
 
     @Override
@@ -44,23 +45,23 @@
     }
 
     @Override
-    public boolean incrementLikes(Integer postid) {
-        return postMapper.incrementLikes(postid) >= 0;
+    public boolean incrementLikes(Integer postId) {
+        return postMapper.incrementLikes(postId) >= 0;
     }
 
     @Override
-    public boolean decrementLikes(Integer postid) {
-        return postMapper.decrementLikes(postid) >= 0;
+    public boolean decrementLikes(Integer postId) {
+        return postMapper.decrementLikes(postId) >= 0;
     }
 
     @Override
-    public boolean setPinnedStatus(Integer postid, boolean pinned) {
-        return postMapper.updatePinnedStatus(postid, pinned) > 0;
+    public boolean setPinnedStatus(Integer postId, boolean isPinned) {
+        return postMapper.updatePinnedStatus(postId, isPinned) > 0;
     }
 
     @Override
-    public List<Post> findByUserid(Long userid) {
-        return postMapper.findByUserid(userid);
+    public List<Post> findByUserid(Long userId) {
+        return postMapper.findByUserid(userId);
     }
 
     @Override
@@ -68,9 +69,14 @@
         return postMapper.findPinnedPosts();
     }
 
-    /** ✅ 新增：获取所有帖子（置顶优先，时间倒序） */
     @Override
     public List<Post> getAllPostsSorted() {
         return postMapper.selectAllSorted();
     }
+
+    /** ✅ 补充：根据帖子 ID 获取帖子对象 */
+    @Override
+    public Post getById(Integer postId) {
+        return postMapper.selectById(postId);
+    }
 }
diff --git a/src/main/resources/mapper/PostMapper.xml b/src/main/resources/mapper/PostMapper.xml
index e676fcc..ad6024c 100644
--- a/src/main/resources/mapper/PostMapper.xml
+++ b/src/main/resources/mapper/PostMapper.xml
@@ -78,7 +78,7 @@
     <!-- 更新置顶状态 -->
     <update id="updatePinnedStatus" parameterType="map">
         UPDATE post
-        SET is_pinned = #{pinned}
+        SET is_pinned = #{isPinned}
         WHERE postid = #{postid}
     </update>
 
@@ -100,4 +100,10 @@
         ORDER BY is_pinned DESC, postCreatedTime DESC
     </select>
 
+    <!-- ✅ 根据 postid 查询单个帖子 -->
+    <select id="selectById" parameterType="int" resultType="com.pt5.pthouduan.entity.Post">
+        SELECT * FROM post
+        WHERE postid = #{postid}
+    </select>
+
 </mapper>
diff --git a/src/test/java/com/pt5/pthouduan/controller/PostControllerTest.java b/src/test/java/com/pt5/pthouduan/controller/PostControllerTest.java
new file mode 100644
index 0000000..05bf209
--- /dev/null
+++ b/src/test/java/com/pt5/pthouduan/controller/PostControllerTest.java
@@ -0,0 +1,145 @@
+package com.pt5.pthouduan.controller;
+
+import com.pt5.pthouduan.entity.Post;
+import com.pt5.pthouduan.service.PostService;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.time.LocalDateTime;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.Mockito.*;
+
+class PostControllerTest {
+
+    @Mock
+    private PostService postService;
+
+    @InjectMocks
+    private PostController postController;
+
+    @BeforeEach
+    void setUp() {
+        MockitoAnnotations.openMocks(this);
+    }
+
+    @Test
+    void createPost_WithValidData_ShouldReturnTrue() {
+        MultipartFile photo = mock(MultipartFile.class);
+        when(photo.isEmpty()).thenReturn(true); // 模拟没有上传图片
+
+        Post mockPost = new Post();
+        mockPost.setPostid(1);
+        when(postService.createPost(any(Post.class))).thenReturn(mockPost);
+
+        boolean result = postController.createPost(
+                1L, "标题", "内容", "标签", "全站", true, photo
+        );
+
+        assertTrue(result);
+    }
+
+    @Test
+    void deletePost_ShouldReturnTrue_WhenServiceSucceeds() {
+        when(postService.deletePost(1)).thenReturn(true);
+        boolean result = postController.deletePost(1);
+        assertTrue(result);
+    }
+
+    @Test
+    void updatePost_ShouldReturnTrue_WhenUpdateSucceeds() {
+        Post post = new Post();
+        post.setPostid(1);
+        when(postService.updatePost(post)).thenReturn(true);
+        assertTrue(postController.updatePost(post));
+    }
+
+    @Test
+    void searchPosts_ShouldReturnMatchedPosts() {
+        Post post1 = new Post();
+        post1.setPostTitle("关键字匹配");
+
+        when(postService.searchPostsByKeyword("关键字")).thenReturn(List.of(post1));
+
+        List<Post> result = postController.searchPosts("关键字");
+
+        assertEquals(1, result.size());
+        assertEquals("关键字匹配", result.get(0).getPostTitle());
+    }
+
+    @Test
+    void likePost_ShouldReturnTrue() {
+        when(postService.incrementLikes(1)).thenReturn(true);
+        assertTrue(postController.likePost(1));
+    }
+
+    @Test
+    void unlikePost_ShouldReturnTrue() {
+        when(postService.decrementLikes(1)).thenReturn(true);
+        assertTrue(postController.unlikePost(1));
+    }
+
+    @Test
+    void pinPost_ShouldReturnTrue() {
+        when(postService.setPinnedStatus(1, true)).thenReturn(true);
+        assertTrue(postController.pinPost(1));
+    }
+
+    @Test
+    void unpinPost_ShouldReturnTrue() {
+        when(postService.setPinnedStatus(1, false)).thenReturn(true);
+        assertTrue(postController.unpinPost(1));
+    }
+
+    @Test
+    void findByUserid_ShouldReturnUserPosts() {
+        Post post = new Post();
+        post.setUserid(1L);
+        when(postService.findByUserid(1L)).thenReturn(List.of(post));
+
+        List<Post> result = postController.findByUserid(1L);
+        assertEquals(1, result.size());
+        assertEquals(1L, result.get(0).getUserid());
+    }
+
+    @Test
+    void findPinnedPosts_ShouldReturnPinnedList() {
+        Post post = new Post();
+        post.setIsPinned(true);
+        when(postService.findPinnedPosts()).thenReturn(List.of(post));
+
+        List<Post> result = postController.findPinnedPosts();
+        assertEquals(1, result.size());
+        assertTrue(result.get(0).getIsPinned());
+    }
+
+    @Test
+    void togglePinStatus_ShouldToggleAndReturnNewStatus() {
+        Post post = new Post();
+        post.setPostid(1);
+        post.setIsPinned(false);
+
+        when(postService.getById(1)).thenReturn(post);
+        when(postService.setPinnedStatus(1, true)).thenReturn(true);
+
+        Boolean result = postController.togglePinStatus(1);
+        assertTrue(result);
+    }
+
+    @Test
+    void getAllPostsSorted_ShouldReturnAllPosts() {
+        Post post1 = new Post();
+        Post post2 = new Post();
+        when(postService.getAllPostsSorted()).thenReturn(Arrays.asList(post1, post2));
+
+        List<Post> posts = postController.getAllPostsSorted();
+        assertEquals(2, posts.size());
+    }
+}