zzhouFly的专栏

package com.zzhoujsp_jbean.javabean; import java.sql.*; public class DBAccess {    private String drv="com.mysql.jdbc.Driver";    private String url="jdbc:mysql://localhost:3306/demo";

page language="java"  pageEncoding="gb2312"%>page import="java.sql.*"%>    String drv="com.mysql.jdbc.Driver";    String sql="select * from user";    String url="jdbc:mysql://localhost:3306/

package com.zzhoujsp_jbean.javabean; public class UserBean {    public boolean valid(String username,String password)    {       boolean isValid=false;       DBAccess db=new DBAccess();