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(); } } } */