补全登录退出接口并统一登出路径

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

@@ -3,14 +3,10 @@ package com.guo.learningprogresstracker.service.impl;
 import cn.dev33.satoken.stp.StpUtil;
 import com.guo.learningprogresstracker.exception.AppException;
 import com.guo.learningprogresstracker.service.LoginService;
-import com.guo.learningprogresstracker.service.UserService;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 @Service
 public class LoginServiceImpl implements LoginService {
-    @Autowired
-    private UserService userService;
 
     @Override
     public String login(String userId) throws AppException {
@@ -18,4 +14,9 @@ public class LoginServiceImpl implements LoginService {
         //todo Token只在此处使用了，属于后续优化点
         return StpUtil.getTokenInfo().getTokenValue();
     }
+
+    @Override
+    public void logout() {
+        StpUtil.logout();
+    }
 }