diff --git a/test/mvc/src/main/java/com/msksbr/test/mvc/Servlet/ControllerServlet.java b/test/mvc/src/main/java/com/msksbr/test/mvc/Servlet/ControllerServlet.java
new file mode 100644
index 0000000..91223fd
--- /dev/null
+++ b/test/mvc/src/main/java/com/msksbr/test/mvc/Servlet/ControllerServlet.java
@@ -0,0 +1,4 @@
+package com.msksbr.test.mvc.Servlet;
+
+public class ControllerServlet {
+}
diff --git a/test/mvc/src/main/java/com/msksbr/test/mvc/Util/DBUtil.java b/test/mvc/src/main/java/com/msksbr/test/mvc/Util/DBUtil.java
new file mode 100644
index 0000000..3b0906f
--- /dev/null
+++ b/test/mvc/src/main/java/com/msksbr/test/mvc/Util/DBUtil.java
@@ -0,0 +1,44 @@
+package com.msksbr.test.mvc.Util;
+
+import com.msksbr.test.mvc.JavaBean.UserBean;
+
+import java.util.HashMap;
+
+public class DBUtil {
+    public static DBUtil instance = new DBUtil();
+    private final HashMap<String, UserBean> users = new HashMap<String, UserBean>();
+
+    private DBUtil() {
+        UserBean user1 = new UserBean();
+        user1.setName("Jason");
+        user1.setPassword("12345678");
+        user1.setEmail("Jason@mail.msksbr.com");
+        users.put("Jason", user1);
+        UserBean user2 = new UserBean();
+        user2.setName("Caesar");
+        user2.setPassword("abcdefg");
+        user2.setEmail("caesar@mai;.msksbr.com");
+        users.put("Caesar", user2);
+    }
+
+    public static DBUtil getInstance() {
+        return instance;
+    }
+
+    public UserBean getUser(String userName) {
+        UserBean user = users.get(userName);
+        return user;
+    }
+
+    public boolean insertUser(UserBean user) {
+        if (user == null) {
+            return false;
+        }
+        String userName = user.getName();
+        if (users.get(userName) != null) {
+            return false;
+        }
+        users.put(userName, user);
+        return true;
+    }
+}