Connection conn=null;
        try{
            Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");//加载驱动
            String url="jdbc:sqlserver://localhost:1433;DatabaseName=Eg";
            conn=DriverManager.getConnection(url,"wwlei","asd123");//获取连接
            System.out.println(conn);//检查连接十分正常 
        }catch(Exception e){
            System.out.println(e.getMessage());
        }finally{
            try{
                conn.close();
            }catch(Exception e){
                System.out.println(e.getMessage());
            }
        }
        
    }
}