feat: 实现基于JSON的登录API和安全认证

refactor: 重构登录逻辑和会话管理

fix: 修复会话ID类型和WebSocket连接问题

build: 更新项目版本号和添加Servlet API依赖

style: 清理无用导入和注释代码

server/src/main/java/com/ecep/contract/ds/other/controller/EmployeeController.java

@@ -1,6 +1,9 @@
 package com.ecep.contract.ds.other.controller;
 
 import java.util.Map;
+import java.util.HashMap;
+
+import jakarta.servlet.http.HttpSession;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.data.domain.Page;
@@ -8,6 +11,7 @@ import org.springframework.data.domain.PageRequest;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.domain.Sort;
 import org.springframework.data.jpa.domain.Specification;
+import org.springframework.security.core.userdetails.User;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
@@ -50,4 +54,35 @@ public class EmployeeController {
         employeeService.delete(employee);
     }
 
+    /**
+     * 获取当前登录用户的信息
+     * 包括employeeId和sessionId
+     */
+    @RequestMapping("/currentUser")
+    public Map<String, Object> getCurrentUser(HttpSession session) {
+        Map<String, Object> result = new HashMap<>();
+        
+        try {
+            // 获取当前登录用户
+            User currentUser = SecurityUtils.getCurrentUser();
+            if (currentUser != null) {
+                // 根据用户名查找Employee对象
+                Employee employee = employeeService.findByName(currentUser.getUsername());
+                if (employee != null) {
+                    result.put("employeeId", employee.getId());
+                    result.put("sessionId", session.getId());
+                    result.put("success", true);
+                    return result;
+                }
+            }
+        } catch (Exception e) {
+            // 处理异常
+        }
+        
+        // 如果获取失败，返回错误信息
+        result.put("success", false);
+        result.put("error", "无法获取当前用户信息");
+        return result;
+    }
+
 }

server/src/main/java/com/ecep/contract/ds/other/repository/EmployeeAuthBindRepository.java

@@ -4,21 +4,14 @@ import java.util.List;
 
 import org.springframework.context.annotation.Lazy;
 import org.springframework.data.domain.Sort;
-import org.springframework.data.jpa.repository.JpaRepository;
-import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
-import org.springframework.data.repository.CrudRepository;
-import org.springframework.data.repository.PagingAndSortingRepository;
 import org.springframework.stereotype.Repository;
 
+import com.ecep.contract.ds.MyRepository;
 import com.ecep.contract.model.Employee;
 import com.ecep.contract.model.EmployeeAuthBind;
 
 @Lazy
 @Repository
-public interface EmployeeAuthBindRepository extends
-        // JDBC interfaces
-        CrudRepository<EmployeeAuthBind, Integer>, PagingAndSortingRepository<EmployeeAuthBind, Integer>,
-        // JPA interfaces
-        JpaRepository<EmployeeAuthBind, Integer>, JpaSpecificationExecutor<EmployeeAuthBind> {
+public interface EmployeeAuthBindRepository extends MyRepository<EmployeeAuthBind, Integer> {
     List<EmployeeAuthBind> findAllByEmployee(Employee employee, Sort sort);
 }