jdbc连接2(不可以注入)

public void login1(String username, String password) throws ClassNotFoundException, SQLException {
	// 1.注册驱动
	Class.forName("com.mysql.jdbc.Driver");
	// 2.获取连接
	Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/web08", "root", "root");
	// 3.编写sql语句
	String sql = "select * from tbl_user where uname=? and upassword=?";
	// 4.创建预处理对象
	PreparedStatement pstmt = conn.prepareStatement(sql);
	// 5.设置参数(给占位符)
	pstmt.setString(1, username);
	pstmt.setString(2, password);
	// 6.执行查询操作
	ResultSet rs = pstmt.executeQuery();
	// 7.对结果集进行处理
	if (rs.next()) {
		System.out.println("恭喜您，" + username + ",登录成功!");
		System.out.println(sql);
	} else {
		System.out.println("账号或密码错误!");
	}
	if (rs != null)
		rs.close();
	if (pstmt != null)
		pstmt.close();
	if (conn != null)
		conn.close();
}
}