<%@ 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">
function yanz()
{
if (zhugan.userid.value == "")
{
alert("用户代码不能为空！");
return false;
}
if(zhugan.username.value == "")
{
alert("用户名称不能为空！");
return false;
}
if(zhugan.password.value == "")
{
alert("登陆密码不能为空！");
return false;
}
/*
if(zhugan.passwore.value == "")
{
alert("确认密码不能为空！");
return false;
}
*/
if(zhugan.password.value != zhugan.passwore.value)
{
alert("登陆密码与确认密码不相同！");
return false;
}
return true;
}
</script>
</head>
<body>
<form id="zhugan" action="SaveUser" method="post" onSubmit="return yanz();">
用户代码：<input id="userid" type="text" name="userid" width=30 />
<br><br>
用户名称：<input id="username" 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="passwore" type="password" name="pueren" width=30 />
<br><br>
<input type="submit" value="提交" />
</form>
</body>
</html>
注册页面
package com.hanqi; import java.io.IOException;
import java.sql.*;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse; /**
* Servlet implementation class 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"); //获取内容
String userID = request.getParameter("userid");
String userName = request.getParameter("username");
String pw = request.getParameter("password"); //判断输入的内容
if(userID == null || userID.trim().length() == 0)
{
response.getWriter().append("用户代码不能为空");
}
else if(userName == null || userName.trim().length() == 0)
{
response.getWriter().append("用户姓名不能为空");
}
else
{
try
{
//注册驱动
Class.forName("oracle.jdbc.driver.OracleDriver");
//连接URL
String url = "jdbc:oracle:thin:@localhost:1521:orcl";
//获取connection对象 （个人理解为登陆数据库 并将数据关联）
Connection conn = DriverManager.getConnection(url,"hanlin","123654789"); //url,名称，密码
//判断是否有数据
if(conn != null)
{
//操纵数据库
String sql = "insert into t_user (user_id，user_name,password) "
+ "values (?,?,?)";
//另外一种方法：
//String sql = "insert into t_user (user_id,user_name,password) values ('" + userID + "')"; //执行sql语句的类
PreparedStatement pps = conn.prepareStatement(sql);
//转码
userName = new String(userName.getBytes("ISO-8859-1"),"UTF-8");
//将操纵数据库中数据类名编下顺序便于输入
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");
}
//关闭 释放资源
pps.close(); conn.close(); }
else
{ } }
catch (ClassNotFoundException e) //仅捕获一类特定异常
{
// TODO Auto-generated catch block
e.printStackTrace();
response.getWriter().append(e.getMessage());
}
catch (Exception e) //捕获所有异常
{
// TODO Auto-generated catch block
e.printStackTrace();
response.getWriter().append(e.getMessage());
} }
} /**
* @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);
} }
关联数据库
