diff --git a/demo/src/main/java/com/example/demo/bean/UsageDate.java b/demo/src/main/java/com/example/demo/bean/UsageDate.java
index d7c1f49..aadfb24 100644
--- a/demo/src/main/java/com/example/demo/bean/UsageDate.java
+++ b/demo/src/main/java/com/example/demo/bean/UsageDate.java
@@ -26,6 +26,17 @@ public class UsageDate {
     public UsageDate(){}
     private int equation;
 
+<<<<<<< HEAD
+    public int getYear() {
+        return 0;
+    }
+
+    public long getProductNum() {
+        return 0;
+    }
+
+    public double getAmount() {
+=======
     public double getAmount() {
         return amount;
     }
@@ -35,6 +46,7 @@ public class UsageDate {
     }
 
     public long getProductNum() {
+>>>>>>> origin/master
         return 0;
     }
 
diff --git a/demo/src/main/java/com/example/demo/loginService/API/UserService.java b/demo/src/main/java/com/example/demo/loginService/API/UserService.java
new file mode 100644
index 0000000..4bbdf6c
--- /dev/null
+++ b/demo/src/main/java/com/example/demo/loginService/API/UserService.java
@@ -0,0 +1,7 @@
+package com.example.demo.loginService.API;
+
+import com.example.demo.bean.User;
+
+public interface UserService {
+    public User selectUserByuserName(String userName);
+}
diff --git a/demo/src/main/java/com/example/demo/loginService/API/impl/UserServiceImpl.java b/demo/src/main/java/com/example/demo/loginService/API/impl/UserServiceImpl.java
new file mode 100644
index 0000000..e494a7b
--- /dev/null
+++ b/demo/src/main/java/com/example/demo/loginService/API/impl/UserServiceImpl.java
@@ -0,0 +1,17 @@
+package com.example.demo.loginService.API.impl;
+
+import com.example.demo.Dao.userMapper;
+import com.example.demo.bean.User;
+import com.example.demo.loginService.API.UserService;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Propagation;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service("UserServiceImpl")
+public class UserServiceImpl implements UserService{
+    private userMapper UserMapper;
+    @Transactional(propagation=Propagation.REQUIRED,readOnly = true)
+    public User selectUserByuserName(String userName){
+        return this.UserMapper.selectUserByuserName(userName);
+    }
+}
diff --git a/demo/src/main/java/com/example/demo/loginService/UserController.java b/demo/src/main/java/com/example/demo/loginService/UserController.java
new file mode 100644
index 0000000..6fb4ccb
--- /dev/null
+++ b/demo/src/main/java/com/example/demo/loginService/UserController.java
@@ -0,0 +1,34 @@
+package com.example.demo.loginService;
+
+import com.example.demo.bean.User;
+import com.example.demo.loginService.API.UserService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.PostMapping;
+
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+
+@Controller
+public class UserController extends HttpServlet{
+    @Autowired
+    private UserService userService;
+    @PostMapping("/Login.do")
+    public String doPost1(HttpServletRequest request, HttpServletResponse response){
+        String userName=request.getParameter("userName");
+        String userPwd=request.getParameter("userPwd");
+        User user=this.userService.selectUserByuserName(userName);
+        if(user!=null){
+            if(user.getUserPwd().equals(userPwd)){
+                return "/login1";
+            }
+            else{
+                return "/login2";
+            }
+        }else{
+            return "/login2";
+        }
+    }
+}
diff --git a/demo/src/test/java/com/example/demo/loginService/API/UserService.java b/demo/src/test/java/com/example/demo/loginService/API/UserService.java
new file mode 100644
index 0000000..4bbdf6c
--- /dev/null
+++ b/demo/src/test/java/com/example/demo/loginService/API/UserService.java
@@ -0,0 +1,7 @@
+package com.example.demo.loginService.API;
+
+import com.example.demo.bean.User;
+
+public interface UserService {
+    public User selectUserByuserName(String userName);
+}
diff --git a/demo/src/test/java/com/example/demo/loginService/API/impl/UserServiceImpl.java b/demo/src/test/java/com/example/demo/loginService/API/impl/UserServiceImpl.java
new file mode 100644
index 0000000..e494a7b
--- /dev/null
+++ b/demo/src/test/java/com/example/demo/loginService/API/impl/UserServiceImpl.java
@@ -0,0 +1,17 @@
+package com.example.demo.loginService.API.impl;
+
+import com.example.demo.Dao.userMapper;
+import com.example.demo.bean.User;
+import com.example.demo.loginService.API.UserService;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Propagation;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service("UserServiceImpl")
+public class UserServiceImpl implements UserService{
+    private userMapper UserMapper;
+    @Transactional(propagation=Propagation.REQUIRED,readOnly = true)
+    public User selectUserByuserName(String userName){
+        return this.UserMapper.selectUserByuserName(userName);
+    }
+}
diff --git a/demo/src/test/java/com/example/demo/loginService/UserController.java b/demo/src/test/java/com/example/demo/loginService/UserController.java
new file mode 100644
index 0000000..3105001
--- /dev/null
+++ b/demo/src/test/java/com/example/demo/loginService/UserController.java
@@ -0,0 +1,33 @@
+package com.example.demo.loginService;
+
+import com.example.demo.bean.User;
+import com.example.demo.loginService.API.UserService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.PostMapping;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+
+@Controller
+public class UserController extends HttpServlet{
+    @Autowired
+    private UserService userService;
+    @PostMapping("/Login.do")
+    public String doPost1(HttpServletRequest request, HttpServletResponse response){
+        String userName=request.getParameter("userName");
+        String userPwd=request.getParameter("userPwd");
+        User user=this.userService.selectUserByuserName(userName);
+        if(user!=null){
+            if(user.getUserPwd().equals(userPwd)){
+                return "/login1";
+            }
+            else{
+                return "/login2";
+            }
+        }else{
+            return "/login2";
+        }
+    }
+}