久久亚洲精品成人AV,亚洲av无码专区在线电影,亚洲欧美日本韩国

��Z��spring+dwr+xml无刷新投��?调查)�pȝ��

flustar — Mon, 19 Nov 2007 10:04:00 GMT

一、徏立xml的数据结构，文�g名�ؓ�Q�vote.xml�Q�内容如下：

在你的web应用的根目录建立xml文�g夹，��其拯��到该目录下�?/p>

二、徏立xml对应的bean

/**

* @author flustar

* @version 创徏旉��Q�Jul 11, 2007 5:17:53 PM

* �c�说�?/p>

……………………………………………………………………….

public class VoteBean {

private String voteId;

private String name;

private String voteCount;

private String voteTotalCount;

private String percentum;

public VoteBean() {

}

public String getPercentum() {

return percentum;

}

public void setPercentum(String percentum) {

this.percentum = percentum;

}

public String getVoteId() {

return voteId;

}

public void setVoteId(String voteId) {

this.voteId = voteId;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public String getVoteCount() {

return voteCount;

}

public void setVoteCount(String voteCount) {

this.voteCount = voteCount;

}

三、徏立处理具体逻辑的service

package com.flustar.service;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.text.NumberFormat;

import java.util.ArrayList;

import java.util.Iterator;

import java.util.List;

import org.jdom.Attribute;

import org.jdom.Document;

import org.jdom.Element;

import org.jdom.input.SAXBuilder;

import org.jdom.output.Format;

import org.jdom.output.XMLOutputter;

import org.jdom.xpath.XPath;

import com.flustar.web.beans.VoteBean;

import com.flustar.web.config.ContextConfig;

public class VoteService {

private Element root, vote;

private Document doc;

private Attribute voteTotalCount;

private VoteBean voteBean;

private List voteBeanList;

private String path = ContextConfig.getContextPath()

+ "/xml/vote.xml";

public void buildDoc() throws Exception {

FileInputStream fi = null;

fi = new FileInputStream(path);

SAXBuilder sb = new SAXBuilder();

doc = sb.build(fi);

}

public void formatDoc() throws Exception {

Format format = Format.getCompactFormat();

format.setEncoding("UTF-8");// 讄��xml文�g的字�W��ؓUTF-8

format.setIndent(" ");// 讄��xml文�g�~�进�?个空�?/p>

XMLOutputter xmlOut = new XMLOutputter(format);

xmlOut.output(doc, new FileOutputStream(path));

}

public String floatToPercentum(Double doubleNum) {

NumberFormat numberFormat = NumberFormat.getPercentInstance();

numberFormat.setMinimumFractionDigits(2);

// numberFormat.setMaximumIntegerDigits(2);

String str = numberFormat.format(doubleNum);

//System.out.println(str);

return str;

}

public void updateVoteCount(String voteId) throws Exception {

buildDoc();

root = doc.getRootElement();

vote = (Element) XPath.selectSingleNode(root, "http://vote[@voteId='"

+ voteId + "']");

int voteCount = Integer.parseInt(vote.getAttributeValue("voteCount")) + 1;

//System.out.println(voteCount);

vote.setAttribute("voteCount", String.valueOf(voteCount));

int totalCount = Integer.parseInt(root

.getAttributeValue("voteTotalCount")) + 1;

voteTotalCount = new Attribute("voteTotalCount", String

.valueOf(totalCount));

root.setAttribute(voteTotalCount);

System.out.println(totalCount);

formatDoc();

updateAllVoteCount();//更新所有的癑ֈ��?/p>

}

public void updateAllVoteCount()throws Exception{

buildDoc();

root=doc.getRootElement();

int totalCount = Integer.parseInt(root

.getAttributeValue("voteTotalCount"));

List voteList=XPath.selectNodes(root,"/votes/vote");

for(int i=0;i

vote=(Element)voteList.get(i);

int voteCount = Integer.parseInt(vote.getAttributeValue("voteCount"));

System.out.println(voteCount);

vote.setAttribute("voteCount", String.valueOf(voteCount));

vote.setAttribute("percentum", floatToPercentum(1.0 * voteCount

/ totalCount));

}

formatDoc();

}

public List getAllVote() throws Exception {

buildDoc();

voteBeanList = new ArrayList();

root = doc.getRootElement();

String totalCount = root.getAttributeValue("voteTotalCount");

List voteList = root.getChildren();

Iterator i = voteList.iterator();

while (i.hasNext()) {

voteBean = new VoteBean();

voteBean.setVoteTotalCount(totalCount);

vote = (Element) i.next();

String name = vote.getAttributeValue("name");

String voteCount = vote.getAttributeValue("voteCount");

String percentum = vote.getAttributeValue("percentum");

voteBean.setName(name);

voteBean.setVoteCount(voteCount);

voteBean.setPercentum(percentum);

voteBeanList.add(voteBean);

}

return voteBeanList;

}

public String getVoteTotalCount() {

return voteTotalCount;

}

public void setVoteTotalCount(String voteTotalCount) {

this.voteTotalCount = voteTotalCount;

}

四、获取上下文路径的listener

package com.flustar.web.listener;

import javax.servlet.ServletContextEvent;

import javax.servlet.ServletContextListener;

import com.flustar.web.config.ContextConfig;

public class ConfigLoadContextListener implements ServletContextListener{

public void contextDestroyed(ServletContextEvent arg0) {

// TODO Auto-generated method stub

}

public void contextInitialized(ServletContextEvent contextEvent) {

// TODO Auto-generated method stub

String contextPath = contextEvent.getServletContext().getRealPath("/");

ContextConfig.setContextPath(contextPath);

}

………………………………………………………..

……………………………………………………………

public class ContextConfig {

private static String contextPath;

public static String getContextPath() {

return contextPath;

}

public static void setContextPath(String contextPath) {

ContextConfig.contextPath = contextPath;

}

……………………………………………………………………

………………………………………………………………..

}

五、在applicationContext-service.xml中注册VoteService

六、注册xml�Q�在你的web应用的WEB-INFO目录下徏立applicationContext-dwr.xml文�g�Q�内容�ؓ�Q?/p>

七、修改web.xml

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"

version="2.4">

…………………………………………………………………………………………………………………………

………………………………………………………………………………………………………………………………..

contextConfigLocation

…………………………………..

/WEB-INF/classes/applicationContext-service.xml

……………………………………………………………………………………………………………………………………………. com.flustar.web.listener.ConfigLoadContextListener

…………………………………………………………………………………………………………………………………………….

dwr-invoker

org.directwebremoting.servlet.DwrServlet

debug

true

dwr-invoker

/dwr/*

…………………………………………………………………………………………………………………………………………….

八、jsp��面

<%@ page contentType="text/html; charset=gbk" language="java" import="java.sql.*" errorPage="" %>

投票�pȝ��

你��用最多的一门语�a�是？

C语言

c++

java

汇编语言

投票�l�果

投票�l�果
语言	癑ֈ��?lt;/th>	��数

�?lt;span id="totalCount">条投��?lt;br/>

[关闭�H�口]

flustar 2007-11-19 18:04 发表评论

用prototype实现前台表单的验�?无刷新验证用户名�Q�email,验证码等)

flustar — Thu, 15 Nov 2007 07:43:00 GMT

最�q�发��C��用prototype来做表单的前台验证感觉非�怸�错，prototype.js 是由 Sam Stephenson 写的一�?javascript �c�d��。这个构思奇妙，而且兼容标准的类库，能帮助你��L��建立有高度互动的 Web 2.0 �Ҏ��的富客��L��面。下面是一个��用它做前台表单验证的例子�?br />

    }
    function checkMobile(){
    var patrn=/^(?:13\d|15[89])-?\d{5}(\d{3}|\*{3})$/;
    if($F("mobile").match(/^\s*$/g)){
         $("mobileErr").innerHTML="";
      flag[7]=true;
    }else{
      if (!patrn.test($F("mobile"))) {
         $("mobileErr").innerHTML="误��入正��的手机��L��";
         flag[7]=false;
      }else{
       $("mobileErr").innerHTML="";
       flag[7]=true;
      }

    }

   }
   function checkPID(){
     var patrn=/(^\d{15}$)|(^\d{17}([0-9]|X|x)$)/;
     if($F("PID").match(/^\s*$/g)){
     $("PIDErr").innerHTML="";
      flag[8]=true;
     }else{
     if (!patrn.test($F("PID")))
        {
         $("PIDErr").innerHTML="�w�䆾证号码有�?";
         flag[8]=false;
      }else{
      $("PIDErr").innerHTML="";
      flag[8]=true;
   }
   }

    }

function isExsitUsername(){
     var username=$F("userName");
     var url='user_checkUsername.do';
     var pars="username="+username;
     var usernameAjax=new Ajax.Request(
       url,
       {method:'get',parameters:pars,onComplete:showUResult}
       );
}
function showUResult(result){

       if(result.responseText.indexOf("true")!=-1){

          $("userNameErr").innerHTML=userNameInfo[2];
          flag[0]=false;
       }else{
          $("userNameErr").innerHTML=""+userNameInfo[3]+"";
          flag[0]=true;
       }
}
function isExsitEmail(){
     var email=$F("email");
     var url='user_checkEmail.do';
     pars="email="+email;
     var emailAjax=new Ajax.Request(
        url,
        {method:'get',parameters:pars,onComplete:showEResult}
        );
}
function showEResult(result){
if(result.responseText.indexOf("true")!=-1){
     $("emailErr").innerHTML="�q�个Email已经有�h使用�Q�请换一�?;
     flag[6]=false;
}else{
     $("emailErr").innerHTML="已通过验证";
     flag[6]=true;
}
}
function checkCode(){
      if($("code").value.match(/^\s*$/g)){
         $("codeErr").innerHTML="验证码不能�ؓ�I?;
         flag[9]=false;
    }else{
      isCorrectCode();
    }
    }
function isCorrectCode(){
     var code=$F("code");
     var url='checkcode.jsp';
     pars="code="+code+"&ram="+Math.random();
     var codeAjax=new Ajax.Request(
     url,
     {method:'get',parameters:pars,asynchronous:false,onComplete:showCResult}
     );

}
function showCResult(result){
     if(result.responseText.indexOf("validate_successful")!=-1){
       $("codeErr").innerHTML="";
       flag[9]=true;
     }else{
       $("codeErr").innerHTML="错误的验证码";
       flag[9]=false;
     }
}
function checkform(){
      checkUserName();
      checkPassword();
      checkRePassword();
      checkName();
      checkQuestion();
      checkAnswer();
      checkEmail();
      checkMobile();
      checkPID();
      checkCode();
      for(var i=0;i         if(flag[i]==false)
          return false;
     }
     return true;

   }
其中

$()�Q?/span> 函数是在 DOM 中��用过于频�J�的 document.getElementById() �Ҏ��的一个便利的��写，��像�q�个 DOM �Ҏ��一��P��q�个�Ҏ��q�回参数传入�?id 的那个元素�?br /> $F() �Q�函数是另一个大收欢�q�的“快捷�?#8221;�Q�它能用于返回�Q何表单输入控件的��|��比如文本框或者下拉列表。这个方法也能用元素 id 或元素本�w�做为参数�?br /> Ajax.Request �c�：如果你不使用��M��的帮助程序包�Q�你很可能编写了整个大量的代码来创徏 XMLHttpRequest 对象�q�且异步的跟�t�它的进�E�，然后解析响应�q�处理它。当你不需要支持多于一�U�类型的��览器时你会感到非常的幸�q�，反之你就要考虑使用prototype的Ajax.Request�c�R��你也许注意��C��在��用它做无��h��验证用户名，Email以及验证码时�Q��?get'�Ҏ��把参��C��递给url�Q�后面都带有一个参敎ͼ��q�个参数值是当前�pȝ��旉��或是一个随机参数的一个数�Q�这样做是�ؓ了避免浏览器的从它的�~�存中读取响应信息，影响�l�果的正��性�?/p>

flustar 2007-11-15 15:43 发表评论

flustar — Sun, 29 Apr 2007 02:32:00 GMT

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wmplay/mmp_sdk/settingsobject.asp

flustar 2007-04-29 10:32 发表评论