java中连接SQL Server 数据库实例

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

public class TestJDBC {
 
 public static void main(String[] args) {
  getConnection();
 }
 
 static final String DRIVER = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
 static final String URL = "jdbc:sqlserver://localhost:1433;databaseName=bank";
 static final String USER = "sa";
 static final String PWD = "123456";
 public static Connection getConnection()
 {  
  Connection con = null;  
  try{   
   Class.forName(DRIVER);   
   con = DriverManager.getConnection(URL, USER,PWD);  
  }catch (ClassNotFoundException e) {   
    // TODO Auto-generated catch block   
    e.printStackTrace();  
  }catch (SQLException e) {   
     // TODO Auto-generated catch block   
    e.printStackTrace();  
  }  
   if(con!=null)
   {
    System.out.println("sql server 数据库连接成功！");
    return con;
   }
   else{
    System.out.println("sql server 数据库连接失败！");
    return null;
   }
 }
}