diff --git a/BookFloatingServer.java b/BookFloatingServer.java
new file mode 100644
index 0000000..bce95fc
--- /dev/null
+++ b/BookFloatingServer.java
@@ -0,0 +1,179 @@
+import java.sql.*;
+
+public class BookFloatingServer
+{
+	public static int Login(String Email,String Password) {
+		Connection conn = null;
+		String url="jdbc:mysql://gameharbor.cn:3306/test";
+		Statement stmt = null;
+		ResultSet rs = null;
+		int ret=0;
+		
+		String RemotePassword = new String();
+		try{
+			conn=DriverManager.getConnection(url,"testuser","pwdtest");
+			stmt=conn.createStatement();
+			rs=stmt.executeQuery("SELECT pwass FROM user where email=\""+Email+"\"");
+			if(rs.next())
+			{
+				RemotePassword=rs.getString(1);
+			}
+			
+			if(RemotePassword.equals(Password))
+			{
+				ret=1;///Password Matchs
+			}
+			else
+			{
+				ret=0;///Password Does not Matchs
+			}
+		} catch(SQLException e) {
+			e.printStackTrace();
+			ret=-1;// Connection Error
+		}
+		finally
+		{
+			try{
+				if(rs!=null) rs.close();
+			} catch(SQLException e) {
+				e.printStackTrace();
+			}
+			
+			try{
+				if(stmt!=null) stmt.close();
+			} catch(SQLException e){
+				e.printStackTrace();
+			}
+			
+			try{
+				if(conn!=null) conn.close();
+			} catch(SQLException e) {
+				e.printStackTrace();
+			}
+		}
+		
+		return ret;
+	}
+	
+	public static int Register(String Email,String Password,String Nickname,String School){
+		int upret=-1;
+		Connection conn=null;
+		String url="jdbc:mysql://gameharbor.cn:3306/test";
+		PreparedStatement stmt = null;
+		
+		try{
+			conn=DriverManager.getConnection(url,"testuser","pwdtest");
+			String sqlString=new String("INSERT into test.user VALUES (?,?,?,?,?,?)");
+			stmt=conn.prepareStatement(sqlString,Statement.RETURN_GENERATED_KEYS);
+			stmt.setString(1,Email);
+			stmt.setString(2, Password);
+			stmt.setString(3, Nickname);
+			stmt.setString(4, School);
+			stmt.setString(5, "");
+			stmt.setString(6, "");
+			upret=stmt.executeUpdate();
+		} catch(SQLException e) {
+			e.printStackTrace();
+		} finally {
+			try {
+				if(stmt!=null) stmt.close();
+			} catch(SQLException e) {
+				e.printStackTrace();
+			}
+			
+			try{
+				if(conn!=null) conn.close();
+			} catch(SQLException e) {
+				e.printStackTrace();
+			}
+		}
+		
+		return upret;
+	}
+	
+	public static void main(String[] args) {
+		try {
+			Class.forName("com.mysql.jdbc.Driver");
+		} catch (ClassNotFoundException e) {
+			e.printStackTrace();
+			System.exit(-1);
+		}
+		
+		/// ret=Login("test2@me.com","030201");
+		int ret=Register("test3@me.com","030201","LiuTongYuan","QUST");
+		System.out.println("Ret is "+ret);
+	}
+}
+
+/*
+import java.io.*;
+import java.net.*;
+
+public class BookFloatingServer {
+	public class ServerThread implements Runnable
+	{
+		Socket s=null;
+		BufferedReader br=null;
+		public ServerThread(Socket s)
+		{
+			System.out.println("Thread Ready, ID="+Thread.currentThread().getId());
+			this.s=s;
+			try
+			{
+				br=new BufferedReader(
+					new InputStreamReader(
+						s.getInputStream())
+					);
+			}
+			catch(Exception e)
+			{
+				e.printStackTrace();
+				return;
+			}
+		}
+		public void run()
+		{
+			System.out.println("Thread Start, ID="+Thread.currentThread().getId());
+			try
+			{
+				s.close();
+			}
+			catch(Exception e)
+			{
+				e.printStackTrace();
+			}
+			
+			System.out.println("Thread Over, ID="+Thread.currentThread().getId());
+		}
+	}
+	public static void main(String[] args)
+	{
+		ServerSocket ss;
+		try
+		{
+			ss=new ServerSocket(50001);
+		}
+		catch(Exception e)
+		{
+			e.printStackTrace();
+			return;
+		}
+		
+		while(true)
+		{
+			Socket s;
+			try
+			{
+				s=ss.accept();
+			}
+			catch(Exception e)
+			{
+				e.printStackTrace();
+				continue;
+			}
+			
+			new Thread(new ServerThread(s)).start();
+		}
+	}
+}
+*/
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