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<%@ 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>
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); } }
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原文地址：http://www.cnblogs.com/name-hanlin/p/5020647.html
