完善框架结构，解决了validation和saToken的问题

src/main/java/com/guo/learningprogresstracker/service/TasksService.java

@@ -2,6 +2,7 @@ package com.guo.learningprogresstracker.service;
 
 import com.guo.learningprogresstracker.dto.request.TaskRequest;
 import com.guo.learningprogresstracker.dto.response.TaskInfoResponse;
+import com.guo.learningprogresstracker.dto.response.TasksListInfoResponse;
 import com.guo.learningprogresstracker.entity.TaskEntity;
 import com.baomidou.mybatisplus.extension.service.IService;
 
@@ -12,8 +13,11 @@ import com.baomidou.mybatisplus.extension.service.IService;
 */
 public interface TasksService extends IService<TaskEntity> {
 
-    TaskInfoResponse showTask(String taskId);
+    TasksListInfoResponse taskList();
 
     String addTask(TaskRequest taskRequest);
 
+    TaskInfoResponse getTask(String taskId);
+
+    void updateTask(String taskId, TaskRequest updatedTask);
 }

src/main/java/com/guo/learningprogresstracker/service/impl/TasksServiceImpl.java

@@ -4,6 +4,7 @@ import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.guo.learningprogresstracker.dto.PriorityDto;
 import com.guo.learningprogresstracker.dto.request.TaskRequest;
 import com.guo.learningprogresstracker.dto.response.TaskInfoResponse;
+import com.guo.learningprogresstracker.dto.response.TasksListInfoResponse;
 import com.guo.learningprogresstracker.entity.TaskEntity;
 import com.guo.learningprogresstracker.mapStruct.RequestConvert;
 import com.guo.learningprogresstracker.mapStruct.TaskConvert;
@@ -26,9 +27,10 @@ public class TasksServiceImpl extends ServiceImpl<TasksMapper, TaskEntity>
 
 
     @Override
-    public TaskInfoResponse showTask(String taskId) {
+    public TasksListInfoResponse taskList() {
+
+        TasksListInfoResponse result = new TasksListInfoResponse();
 
-        TaskInfoResponse result = new TaskInfoResponse();
         return result;
     }
 
@@ -41,6 +43,21 @@ public class TasksServiceImpl extends ServiceImpl<TasksMapper, TaskEntity>
         this.save(task);
         return task.getTaskNum();
     }
+
+    @Override
+    public TaskInfoResponse getTask(String taskId) {
+        TaskEntity taskEntity = this.getById(taskId);
+        TaskInfoResponse taskInfoResponse = TaskConvert.MAPPER.taskEntityToTaskInfoResponse(taskEntity);
+
+        return taskInfoResponse;
+    }
+
+    @Override
+    public void updateTask(String taskId, TaskRequest updatedTask) {
+        TaskEntity taskEntity = TaskConvert.MAPPER.taskRequestToTaskEntity(updatedTask);
+        this.updateById(taskEntity);
+
+    }
 }