diff --git a/src/main/java/com/pt5/pthouduan/controller/TorrentController.java b/src/main/java/com/pt5/pthouduan/controller/TorrentController.java
index a57b06d..0fd24e2 100644
--- a/src/main/java/com/pt5/pthouduan/controller/TorrentController.java
+++ b/src/main/java/com/pt5/pthouduan/controller/TorrentController.java
@@ -105,24 +105,15 @@
         return torrentService.getAllTorrents();
     }
 
-//    // 按分类获取种子（带 category 参数）
-//    @GetMapping("/listByCategory")
-//    public List<Torrent> getTorrentsByCategory(@RequestParam(required = false) Integer categoryid) {
-//        if (categoryid == null) {
-//            return torrentService.getAllTorrents();
-//        }
-//        return torrentService.getTorrentsByCategory(categoryid); // 否则按分类过滤
-//    }
-//
-//    @GetMapping("/listByCategorywithfilter")
-//    public List<Torrent> getTorrentsByCategorywithFilter(
-//            @RequestParam Integer categoryid,
-//            @RequestParam Map<String, String> filters
-//    ){
-//        filters.remove("categoryid");
-//        List<Torrent> torrents = torrentService.getTorrentsByCategorywithfilters(categoryid,filters);
-//        return torrents;
-//    }
+    // 按分类获取种子（带 category 参数）
+    @GetMapping("/listByCategory")
+    public List<Torrent> getTorrentsByCategory(@RequestParam(required = false) Integer categoryid) {
+        if (categoryid == null) {
+            return torrentService.getAllTorrents();
+        }
+        return torrentService.getTorrentsByCategory(categoryid); // 否则按分类过滤
+    }
+    
 
 
 
diff --git a/src/test/java/com/pt5/pthouduan/ControllerTest/TorrentListByCategoryControllerTest.java b/src/test/java/com/pt5/pthouduan/ControllerTest/TorrentListByCategoryControllerTest.java
new file mode 100644
index 0000000..7cb6521
--- /dev/null
+++ b/src/test/java/com/pt5/pthouduan/ControllerTest/TorrentListByCategoryControllerTest.java
@@ -0,0 +1,85 @@
+package com.pt5.pthouduan.ControllerTest;
+
+import com.pt5.pthouduan.controller.TorrentController;
+import com.pt5.pthouduan.entity.Torrent;
+import com.pt5.pthouduan.service.TorrentService;
+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.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.setup.MockMvcBuilders;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+import static org.mockito.Mockito.when;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
+
+class TorrentListByCategoryControllerTest {
+
+    @Mock
+    private TorrentService torrentService;
+
+    @InjectMocks
+    private TorrentController torrentController;
+
+    private MockMvc mockMvc;
+
+    @BeforeEach
+    void setUp() {
+        MockitoAnnotations.openMocks(this);
+        mockMvc = MockMvcBuilders.standaloneSetup(torrentController).build();
+    }
+
+    @Test
+    void getTorrentsByCategory_WithCategoryId_ShouldReturnFilteredTorrents() throws Exception {
+        // Arrange
+        Integer categoryid = 1;
+        Torrent torrent1 = new Torrent();
+        Torrent torrent2 = new Torrent();
+        List<Torrent> torrents = Arrays.asList(torrent1, torrent2);
+
+        when(torrentService.getTorrentsByCategory(categoryid)).thenReturn(torrents);
+
+        // Act & Assert
+        mockMvc.perform(get("/torrent/listByCategory")
+                        .param("categoryid", categoryid.toString()))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$").isArray())
+                .andExpect(jsonPath("$.length()").value(2));
+    }
+
+    @Test
+    void getTorrentsByCategory_WithoutCategoryId_ShouldReturnAllTorrents() throws Exception {
+        // Arrange
+        Torrent torrent1 = new Torrent();
+        Torrent torrent2 = new Torrent();
+        List<Torrent> torrents = Arrays.asList(torrent1, torrent2);
+
+        when(torrentService.getAllTorrents()).thenReturn(torrents);
+
+        // Act & Assert
+        mockMvc.perform(get("/torrent/listByCategory"))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$").isArray())
+                .andExpect(jsonPath("$.length()").value(2));
+    }
+
+    @Test
+    void getTorrentsByCategory_WithNonExistingCategory_ShouldReturnEmptyList() throws Exception {
+        // Arrange
+        Integer categoryid = 999;
+        when(torrentService.getTorrentsByCategory(categoryid)).thenReturn(Collections.emptyList());
+
+        // Act & Assert
+        mockMvc.perform(get("/torrent/listByCategory")
+                        .param("categoryid", categoryid.toString()))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$").isArray())
+                .andExpect(jsonPath("$.length()").value(0));
+    }
+}
\ No newline at end of file