JDBC连接SQL Server

定义数据库连接url，数据库用户名username，数据库密码password

private static String url = "jdbc:sqlserver://localhost:1433;DatabaseName=emp";
private static String user="sa";
private static String password="123456";

加载驱动

Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");

建立连接

Connection con = DriverManager.getConnection(url, user, password);

创建SQL语句

String sql = "select * from Table_1";

执行SQL语句

PreparedStatement ps = con.prepareStatement(sql);
ResultSet rs = ps.executeQuery();

处理结果集

while(rs.next()) {
     int id = rs.getInt(1);  
            String uname = rs.getString(2);  
            String pwd = rs.getString(3);
            System.out.println("id:"+id);
            System.out.println("name:"+uname);
            System.out.println("pwd:"+pwd);
}

关闭连接

rs.close();
ps.close();
con.close();