【垃圾菜鸟笔记】ajax +用户注册小小实例
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userAction.java
package xxx.user.controller;import java.io.IOException;import java.io.PrintWriter;import javax.servlet.http.HttpSession;import javax.swing.Action;import xxx.common.BaseAction;import xxx.user.pojo.Conuser;import xxx.user.service.userService;import com.opensymphony.xwork2.ModelDriven;public class userAction extends BaseAction implements ModelDriven<Conuser> {public userAction() {}private Conuser conuser = new Conuser();private userService service;public Conuser getConuser() {return conuser;}public void setConuser(Conuser conuser) {this.conuser = conuser;}public void setService(userService service) {this.service = service;}public Conuser getModel() {return conuser;}public userService getService() {return service;}public String check() throws IOException {// Serverlet根据请求的参数，验证完成后，以xml格式写下验证信息。// 供JSP页面的XMLHttpRequest对象读取。response.setContentType("text/xml");response.setHeader("Cache-Control", "no-cache");// 验证用户名boolean ck = service.checkUserName(conuser);// 根据返回的结果,写下相应的XML信息。if (ck) {response.getWriter().write("<message>1</message>"); // 用户名不存在return null;} else {response.getWriter().write("<message>0</message>"); // 用户名存在return null;}// return "check";}public String addUser() throws IOException {service.addUser(conuser);return "add";}public String login() throws IOException {response.setContentType("text/html;charset=utf-8");PrintWriter out = response.getWriter();System.out.println(conuser.getUserName());if (conuser.getUserLevel() != 0) {HttpSession session = request.getSession();session.setAttribute("userName", conuser.getUserName());session.setAttribute("userLevel", conuser.getUserLevel());return SUCCESS;}// 返回登陆标识int flag = service.checkLogin(conuser);if (flag == 0) {out.println("<script>alert('用户名或密码不正确！');history.back();</script>");return null;} else {// 在session范围存储键值对HttpSession session = request.getSession();session.setAttribute("userName", conuser.getUserName());session.setAttribute("userLevel", flag);return SUCCESS;}}}addUser.jsp<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%><%String path = request.getContextPath();String basePath = request.getScheme() + "://"+ request.getServerName() + ":" + request.getServerPort()+ path + "/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><base href="<%=basePath%>"><title>My JSP 'addUser.jsp' starting page</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0"><meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><!--<link rel="stylesheet" type="text/css" href="styles.css">--><script type="text/javascript" src="js/check.js" /><script type="text/javascript" src="ja/jquery-1.7.2.js"></script><script type="text/javascript"> function createXml(){ if(window.XMLHttpRequest){ xmlHttp = new XMLHttpRequest(); }else if(window.ActiveXObject){ xmlHttp = new ActiveXObject("Microsoft.XMLHTTP"); } } //验证用户名方法 function checkUserNameAction(userName){ var nameField = userName.value; if(nameField.length==0) return false; var url="user/check.action?userName="+'\"'+nameField+'\"'+'&_dc='+new Date().getTime();///加缓存防止ie下的get缓存; // alert(url); //var url="check.action?userName="+nameField; checkUserNameMsg.innerHTML = "检测中,请等待..."; createXml(); if(xmlHttp){ xmlHttp.open("GET",url,true); //注册处理事件的url xmlHttp.onreadystatechange = callback; //注册回传函数 xmlHttp.send(null); //发送请求 } }//end checkUserNameAction(); //回传方法 function callback(){ if(xmlHttp.readyState == 4){ if(xmlHttp.status == 200){ //alert('请求已发出'); showResult();//回传处理 } } } //显示检测结果 function showResult() { //alert( xmlHttp.responseText); // var message1 = xmlHttp.responseText.getElementsByTagName("messages")[0]; var message = xmlHttp.responseXML.getElementsByTagName("message")[0]; //; var msg = message.firstChild.data; if(msg=="1"){ nameEnable = true; // alert('keyishiyong '); checkUserNameMsg.innerHTML = "<font color='green' size='2px'><b>用户名可以使用</b></font>"; check(); return true; }else if(msg=="0"){ nameEnable = false; // alert('bukeyishiyong '); document.addUser.userName.focus();document.addUser.userName.select(); checkUserNameMsg.innerHTML = "<font color='red' size='2px'><B> 用户名已存在,请重新输入</B></font>"; return false; } }</script></head><!-- oncontextmenu="return false" ondragstart="return false"onselectstart="return false" --><body><div><form action="<%=request.getContextPath()%>/user/addUser.action"method="post" id="addUser" name="addUser"><table width="600" border="0" align="center" cellpadding="0"cellspacing="0"><tr><td height="50" colspan="5" align="center" bgcolor="#CCCCCC"><blockquote><blockquote><blockquote><p><strong>用户注册</strong></p></blockquote></blockquote></blockquote></td></tr><tr><td width="39" height="50" bgcolor="#E4E4E4"> </td><td width="175" height="50" align="right" bgcolor="#E4E4E4">用 户 名</td><td height="50" colspan="2" bgcolor="#E4E4E4"><input name="userName" type="text" id="userName" size="24"maxlength="20" onBlur="checkUserNameAction(this);" ></td><td height="50" bgcolor="#E4E4E4"><span id="checkUserNameMsg"></span></td></tr><tr><td height="50" bgcolor="#E4E4E4"> </td><td height="50" align="right" bgcolor="#E4E4E4">密 码</td><td height="50" colspan="2" bgcolor="#E4E4E4"><input name="userPwd" type="text" id="userPwd" size="24"maxlength="20"></td><td height="50" bgcolor="#E4E4E4"> </td></tr><tr><td height="50" bgcolor="#E4E4E4"> </td><td height="50" align="right" bgcolor="#E4E4E4">确认密码</td><td height="50" colspan="2" bgcolor="#E4E4E4"><input name="userPwd1" type="text" id="userPwd1" size="24"maxlength="20"></td><td height="50" bgcolor="#E4E4E4"> </td></tr><tr><td height="50" bgcolor="#E4E4E4"> </td><td height="50" align="right" bgcolor="#E4E4E4">电话号码</td><td height="50" colspan="2" bgcolor="#E4E4E4"><input name="userPhone" type="text" id="userPhone" size="24"maxlength="15"></td><td height="50" bgcolor="#E4E4E4"> </td></tr><tr><td height="50" bgcolor="#E4E4E4"> </td><td height="50" align="right" bgcolor="#E4E4E4">邮箱</td><td height="50" colspan="2" bgcolor="#E4E4E4"><input name="userEmail" type="text" id="userEmail" size="24px"maxlength="30"></td><td height="50" bgcolor="#E4E4E4"> </td></tr><tr><td height="50" bgcolor="#E4E4E4"> </td><td height="50" bgcolor="#E4E4E4"><input type="hidden" name="userLevel" id="userLevel" value="2" /></td><td width="41" height="50" bgcolor="#E4E4E4"> </td><td width="142" height="50" bgcolor="#E4E4E4"><input type="submit" name="submit" id="submit"onclick="return check()" value="提交"></td><td height="50" bgcolor="#E4E4E4"> </td></tr><tr><td height="50" bgcolor="#E4E4E4"> </td><td height="50" bgcolor="#E4E4E4"> </td><td height="50" colspan="2" bgcolor="#E4E4E4"> </td><td height="50" bgcolor="#E4E4E4"> </td></tr></table></form></div><br></body></html>struts-user.xml
<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd"><struts><package name="user" namespace="/user" extends="struts-default"><action name="login" class="userAction" method="login"><result name="success" type="redirect">/index.jsp</result></action><action name="check" class="userAction" method="check"> <result name="check" type="redirect" >/addUser.jsp</result></action><action name="addUser" class="userAction" method="addUser"><result name="add" type="redirect">/login.jsp</result></action></package></struts>check.js
function check() {var filter = /^\s*[.A-Za-z0-9_-]{5,15}\s*$/;if (!filter.test(document.addUser.userName.value)) {//alert("用户名填写不正确,请重新填写！可使用的字符为（A-Z a-z 0-9 _ - .)长度不小于5个字符，不超过15个字符，注意不要使用空格。");checkUserNameMsg.innerHTML = "<font color='red' size='2px'><b>可使用的字符为（A-Z a-z 0-9 _ - .)长度不小于5个字符，不超过15个字符，注意不要使用空格。</b></font>"; document.addUser.userName.focus();document.addUser.userName.select();return false;}elseif (document.addUser.userPwd.value == "") {alert("请填写您的密码！");document.addUser.userPwd.focus();document.addUser.Pwd.select();return false;}elseif (document.addUser.userPwd1.value == "") {alert("请输入您的确认密码！");document.addUser.userPwd1.focus();return false;}elsevar filter = /^\s*[.A-Za-z0-9_-]{5,15}\s*$/;if (!filter.test(document.addUser.userPwd.value)) {alert("密码填写不正确,请重新填写！可使用的字符为（A-Z a-z 0-9 _ - .)长度不小于5个字符，不超过15个字符，注意不要使用空格。");ddocument.addUser.userPwd.focus();document.addUser.userPwd.select();return false;}elseif (document.addUser.userPwd.value != document.addUser.userPwd1.value) {alert("两次填写的密码不一致，请重新填写！");document.addUser.userPwd.focus();document.addUser.userPwd.select();return false;}elseif (document.addUser.userPhone.value == "") {alert("请输入您的电话！");document.addUser.userPhone.focus();document.addUser.userPhone.select();return false;}elsevar filter=/^1[3|4|5|8][0-9]\d{4,8}$/;if (!filter.test(document.addUser.userPhone.value)) {alert("电话号码不正确,请重新填写！");document.addUser.userPhone.focus();document.addUser.userPhone.select();return false;}elseif (document.addUser.userEmail.value == "") {alert("请输入您的电子邮件地址！");document.addUser.userEmail.focus();document.addUser.userEmail.select();return false;}elsevar filter = /^\s*([A-Za-z0-9_-]+(\.\w+)*@(\w+\.)+\w{2,3})\s*$/;if (!filter.test(document.addUser.userEmail.value)) {alert("邮件地址不正确,请重新填写！");document.addUser.userEmail.focus();document.addUser.userEmail.select();return false;}} 0 0
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