注册页面
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>用户注册</title>
<script type="text/javascript">
//在本页面对注册信息进行验证，使之不能为空
function check()
{
var uid = document.getElementById("userid");
if (uid.value == "")
{
alert("用户代码不能为空");
return false;
}
if(uform.usermingc.value == "")
{
alert("用户名称不能为空");
return false;
}
if(uform.password.value == "")
{
alert("密码不能为空");
return false;
}
if(uform.quer.value != uform.password.value)
{
alert("登录密码和确认密码不一致");
return false;
}
return true;
}
</script>
</head>
<body>
<form id="uform" action ="saveUser" onsubmit="return check()" >
用户代码：<input id="userid" type="text" name="userid" width=30 >
<br><br>
用户名称：<input id="usermingc" type="text" name="username" width=30>
<br><br>
登录密码：<input id="password" type="password" name="password" width=30>
<br><br>
确认密码：<input id="quer" type="password" name="queren" width=30>
<br><br>
<input type="submit" value="提交">
</form>
</body>
</html>
保存界面
package com.hanqi;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.sql.*;
/**
* Servlet implementation class saveUser
*/
@WebServlet("/saveUser")
public class saveUser extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public saveUser() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("UTF-8");
response.setContentType("text/html; charset=UTF-8");
String userid = request.getParameter("userid");
String username = request.getParameter("username");
String pw = request.getParameter("password");
if(userid == null ||userid.trim().length() == 0)
{
response.getWriter().append("用户ID不能为空");
}
else if(username == null ||username.trim().length() == 0)
{
response.getWriter().append("用户名称不能为空");
}
else
{
try
{
//注册数据库驱动
Class.forName("oracle.jdbc.driver.OracleDriver");
//连接URL
String url = "jdbc:oracle:thin:@localhost:1521:ORCL" ;
// 驱动管理器 工厂模式
Connection conn = DriverManager.getConnection(url, "test", "test");
if(conn != null)
{
//操作数据库
String sql = "insert into t_user (user_id,user_name,password) values(?,?,?)" ;
// 执行SQL语句的类
PreparedStatement pps = conn.prepareStatement(sql);
username = new String(username.getBytes("ISO-8859-1"),"UTF-8");
pps.setString(1, userid);
pps.setString(2, username);
pps.setString(3, pw);
int row = pps.executeUpdate();//执行SQL语句并返回数据行数
if(row > 0)
{
response.getWriter().append("保存"+row+"条数据成功");
}
else
{
response.getWriter().append("保存数据失败");
}
//释放资源
pps.close();
conn.close();
}
else
{
response.getWriter().append("连接数据库失败");
}
}
catch (Exception e)
{
e.printStackTrace();
response.getWriter().append(e.getMessage());
}
}
response.getWriter().append("Served at: ").append(request.getContextPath());
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
时间： 2024-08-27 07:14:13