JavaWeb实现简单查询商品功能

JavaWeb实现简单查询商品功能实现简单查询商品功能

主要为大家详细介绍了JavaWeb实现简单查询商品功能，具有一定的参考价值，感兴趣的小伙伴们可以参考一

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本文实例为大家分享了JavaWeb实现简单查询商品功能的具体代码，供大家参考，具体内容如下

CustomerServlet.java

package com.subing.web;

import java.io.IOException;

import java.io.PrintWriter;

public class CustomerServlet extends HttpServlet {

private static final long serialVersionUID = 1L;

private SqlDemo sql = null;

private final static String s1 = "<h1>欢迎进入管理页面</h1><form action='CustomerServlet' method='post'> "

+ "精确查询:<input type='text' name='jqmess'/><br>"

+ "模糊查询:<input type='text' name='mhmess'/><br>"

+ "<input type='submit' value='提交' name='sub'/>"

+ "</form>";

// 登录的时候进行验证

private boolean isLoginProv(String userinfo, String password) {

public CustomerServlet() throws Exception {

super();

sql = new SqlDemo(); // 进行数据库访问的类

// TODO Auto-generated constructor stub

}

/**

* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse

* response)

*/

protected void doGet(HttpServletRequest request,

* response)

*/

protected void doPost(HttpServletRequest request,

HttpServletResponse response) throws ServletException, IOException {

response.setContentType("text/html;charset=gb2312");

request.setCharacterEncoding("gb2312");

PrintWriter pw = response.getWriter();

String sub = request.getParameter("sub");

String login = request.getParameter("login");

if (login != null && login.length() > 0) {