资源描述
register.jsp页面代码如下:
<%@ 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>register.jsp</title>
<style type="text/css">
body,td,input{
font-family: Arial;
font-size: 12px;
}
table.default{
border-collapse:collapse;
width: 300px;
}
table.default,td{
border: 1px solid black;
padding:3px;
}
table.default td.item{
background: #006699;
color: #fff;
}
div.ok{
color: #006600;
}
div.warning{
color: #FF0000;
}
</style>
<script type="text/javascript" src="jslib/checker.js"></script>
</head>
<body>
<h1>注册表单验证</h1>
<form action="">
<table class="default">
<tr>
<td class="item" width="30%">用户名:</td>
<td width="70%">
<input type="text" name="username" id="username" onblur="Checker.checkNode(this)">
<div id="usernameCheckDiv" class="warning">请输入用户名</div>
</td>
</tr>
<tr>
<td class="item">密码:</td>
<td>
<input type="password" name="password" id="password" onblur="Checker.checkPassword()">
<div id="passwordCheckDiv" class="warning">请输入密码</div>
<td>
</tr>
<tr>
<td class="item">密码验证:</td>
<td>
<input type="password" name="password2" id="password2" onblur="Checker.checkPassword()">
<div id="password2CheckDiv" class="warning">请再次输入密码</div>
</td>
</tr>
<tr>
<td class="item">E-mail:</td>
<td>
<input type="text" name="email" id="email" onblur="Checker.checkNode(this)" >
<div id="emailCheckDiv" class="warning">请输入邮件地址</div>
</td>
</tr>
<tr>
<td class="item">验证码:</td>
<td>
<input type="text" name="code" id="code" size="5" onblur="Checker.checkNode(this)">
<img src="code.jsp" width="40" height="20" border="0" alt="">
<div id="codeCheckDiv" class="warning">请输入图片中的验证码</div>
</td>
</tr>
<tr>
<td colspan="2" align="center">
<input type="submit" value="注册">
<input type="reset" value="重置">
</td>
</tr>
</table>
</form>
</body>
</html>
checker.js代码如下:
var Checker = new function(){
this._url="check.action";
this._infoDivSuffix= "CheckDiv" ;//提示信息Div的同意后缀
this.checkNode = function(_node){
var nodeId = _node.id;
if(_node.value!=""){
var xmlHttp=this.createXmlHttp();
xmlHttp.onreadystatechange = function(){
if(xmlHttp.readyState==4){
Checker.showInfo(nodeId+Checker._infoDivSuffix,xmlHttp.responseText);
}
}
xmlHttp.open("POST",this._url,true);
xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
//alert(_node.id);
//alert(_node.value);
xmlHttp.send("name="+nodeId+"&value="+(_node.value));
}
}
//显示服务器反馈信息
this.showInfo = function(_infoDivId , text){
var infoDiv = document.getElementById(_infoDivId); //获取显示信息的div
var status = text.substr(0,1); //反馈信息的第一个字符表示信息类型
if (status == "1") {
infoDiv.className = "ok"; //检查结果正常
} else {
infoDiv.className = "warning"; //检查结果需要用户修改
}
infoDiv.innerHTML = text.substr(1); //写回详细信息
}
//用于创建XMLHttpRequest 对象
this.createXmlHttp = function() {
var xmlHttp = null;
//根据window.XMLHttpRequest 对象是否存在使用不同的创建方式
if (window.XMLHttpRequest) {
xmlHttp = new XMLHttpRequest(); //FireFox、Opera 等浏览器支持的创建方式
} else {
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");//IE 浏览器支持的创建方式
}
return xmlHttp;
}
//检查两次输入的密码是否一致
this.checkPassword = function() {
var p1 = document.getElementById("password").value; //获取密码
var p2 = document.getElementById("password2").value; //获取验证密码
//当两部分密码都输入完毕后进行判断
if (p1 != "" && p2 != "") {
if (p1 != p2) {
this.showInfo("password2" + Checker._infoDivSuffix,
"0 密码验证与密码不一致。");
} else {
this.showInfo("password2" + Checker._infoDivSuffix, "1 两次密码输入正确")
}
} else if (p1 != null) {
this.showInfo("password" + Checker._infoDivSuffix, "1");
}
}
}
验证码code.jsp代码如下:
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ page contentType="image/png" import="java.awt.*,java.awt.image.*,java.util.*,javax.imageio.*" %>
<%
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>生成验证码</title>
</head>
<body>
<%
//设置页面不缓存
response.setHeader("Pragma","No-cache");
response.setHeader("Cache-Control","no-cache");
response.setDateHeader("Expires", 0); int width=50; //设置图片宽度
int height=20; // 设置图片高度
//创建缓存图像
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics g = image.getGraphics(); // 获取图形
g.setColor(new Color(000, 102, 153)); // 设置背景色
g.fillRect(0, 0, width, height); // 填充背景
g.setColor(new Color(000, 000, 000)); // 设置边框颜色
g.drawRect(0, 0, width-1, height-1); // 绘制边框
g.setFont(new Font("Arial", Font.PLAIN, 16)); //设定字体
Random random = new Random(); // 生成随机类
//随机产生4 位数字验证码
StringBuffer sbRan = new StringBuffer(); //保存验证码文本
for (int i=0; i<4; i++){
String ranNum = String.valueOf(random.nextInt(10));
sbRan.append(ranNum);
//将验证码绘制到图像中
g.setColor(new Color(255, 255, 255));
g.drawString(ranNum, 10 * i + 5, 16);
}
g.dispose(); //部署图像
session.setAttribute("_CODE_", sbRan.toString()); // 将验证码保存在session 对象中供对比
ImageIO.write(image, "PNG", response.getOutputStream()); //输出图像到页面
out.clear();
out = pageContext.pushBody();
%>
</body>
</html>
UserAction代码如下:
package register;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.ServletResponseAware;
import com.opensymphony.xwork2.ActionSupport;
public class UserAction extends ActionSupport implements ServletRequestAware ,ServletResponseAware{
/**
*
*/
private static final long serialVersionUID = 1L;
private HttpServletRequest request;
private HttpServletResponse response;
private UserDAO dao = new UserDAOImpl();
public void setServletRequest(HttpServletRequest request) {
this.request =request;
}
public void setServletResponse(HttpServletResponse response) {
this.response = response;
}
@Override
public String execute() throws Exception {
String name = request.getParameter("name");
String value = request.getParameter("value");
// System.out.println(name);
//System.out.println(value);
String info = null;
response.setContentType("text/html;charset=utf-8");
if("code".equals(name)){
String sessionCode = (String)request.getSession().getAttribute("_CODE_");
// System.out.println(sessionCode);
if(value!=null && value.equals(sessionCode)){
response.getWriter().println("1验证码正确");
}else{
response.getWriter().println("0验证码错误");
}
}else{
if("username".equals(name)){
info="用户名";
}else if("email".equals(name)){
info="邮件地址";
}
// System.out.println(dao.querySameValue(name, value));
if(dao.querySameValue(name, value)){
response.getWriter().println("0该"+info+"已存在,请更换"+info+".");
}else{
response.getWriter().println("1该"+info+"可以正常使用");
}
}
return null;
}
}
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