无为清净楼资源网 Design By www.qnjia.com
效果如下：
复制代码 代码如下:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Ajax Progress Bar</title>
<script type="text/javascript">
var xmlHttp;
var key;
var bar_color = 'gray';//进度条的颜色
var span_id = "block";
var clear = " ";
function createXMLHttpRequest()//创建XMLHttpRequest对象
{
if(window.ActiveXObject)
{
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
}
else if(window.XMLHttpRequest)
{
xmlHttp = new XMLHttpRequest();
}
}
function go()
{
createXMLHttpRequest();//创建XMLHttpRequest对象
checkDiv();//显示滚动条
xmlHttp.onreadystatechange = callBack;//设置回调函数
var url = "/AjaxDemo/servlet/ProgressBarServlet?task=create";//请求的地址
var button = document.getElementById("go");
button.disabled = true;//设置按钮不可用
xmlHttp.open("get",url,true);//打开对服务器的连接
xmlHttp.send();//发送请求
}
function callBack()
{
if(xmlHttp.readyState == 4)
{
if(xmlHttp.status == 200)
{
setTimeout("pollServer()",500);//定时调用
}
}
}
function pollServer()
{
createXMLHttpRequest();
var url="/AjaxDemo/servlet/ProgressBarServlet?task=poll&key="+key;
xmlHttp.onreadystatechange = pollCallBack;
xmlHttp.open("GET",url,true);
xmlHttp.send();
}
function pollCallBack()
{
if(xmlHttp.readyState == 4)
{
if(xmlHttp.status == 200)
{
var percent_complete = xmlHttp.responseXML.getElementsByTagName("percent")[0]
.firstChild.data;//从服务器端获得响应信息
var index = processResult(percent_complete);
for(var i = 1; i<=index; i++)
{
var elem = document.getElementById("block"+i);
elem.innerHTML = clear;
elem.style.backgroundColor = bar_color;
var next_cell = i+1;
if(next_cell > index && next_cell <= 9)
{
document.getElementById("block"+next_cell).innerHTML = percent_complete + "%";
}
}
if(index <9 )
{
setTimeout("pollServer()",500);
}
else
{
document.getElementById("complete").innerHTML = "Complete!";
document.getElementById("go").disabled = false;
}
}
}
}
function processResult(percent_complete)
{
var ind;
if(percent_complete.length == 1)
{
ind = 1;
}
else if(percent_complete.length == 2)
{
ind = percent_complete.substring(0,1);
}
else
{
ind = 9;
}
return ind;
}
function checkDiv()
{
var progress_bar = document.getElementById("progressBar");
if(progress_bar.style.visibility == "visible")
{
clearBar();
document.getElementById("complete").innerHTML = "";
}
else
{
progress_bar.style.visibility = "visible";
}
}
function clearBar()
{
for(var i =1; i<10; i++)
{
var elem = document.getElementById("block"+i);
elem.innerHTML = clear;
elem.style.backgroundColor = "white";
}
}
</script>
</head>
<body>
<h1>Ajax Progress Bar Example</h1>
Launch long-running process:
<input type="button" value="Launch" id="go" onclick="go()"/>
<p>
<table align="center">
<tbody>
<tr>
<td>
<div id="progressBar" style="padding:2px;border:solid black 2px;visibility:hidden">
<span id="block1"> </span>
<span id="block2"> </span>
<span id="block3"> </span>
<span id="block4"> </span>
<span id="block5"> </span>
<span id="block6"> </span>
<span id="block7"> </span>
<span id="block8"> </span>
<span id="block9"> </span>
</div>
</td>
</tr>
<tr><td align="center" id="complete"></td></tr>
</tbody>
</table>
</body>
</html>
复制代码 代码如下:
package cn.Ajax.test;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@SuppressWarnings("serial")
public class ProgressBarServlet extends HttpServlet {
private int counter = 1;
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String task = request.getParameter("task");
String res="";
if(task.equals("create")){
res = "<key>1</key>";
counter = 1;
}
else{
String percent = "";
switch (counter) {
case 1: percent = "10";break;
case 2: percent = "23";break;
case 3: percent = "35";break;
case 4: percent = "51";break;
case 5: percent = "64";break;
case 6: percent = "73";break;
case 7: percent = "89";break;
case 8: percent = "100";break;
}
counter++;
res ="<percent>"+percent+"</percent>";
}
PrintWriter out = response.getWriter();
response.setContentType("text/xml");
response.setHeader("Cache-Control", "no-cache");
out.println("<response>");
out.println(res);
out.println("</response>");
out.close();
}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
}
复制代码 代码如下:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Ajax Progress Bar</title>
<script type="text/javascript">
var xmlHttp;
var key;
var bar_color = 'gray';//进度条的颜色
var span_id = "block";
var clear = " ";
function createXMLHttpRequest()//创建XMLHttpRequest对象
{
if(window.ActiveXObject)
{
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
}
else if(window.XMLHttpRequest)
{
xmlHttp = new XMLHttpRequest();
}
}
function go()
{
createXMLHttpRequest();//创建XMLHttpRequest对象
checkDiv();//显示滚动条
xmlHttp.onreadystatechange = callBack;//设置回调函数
var url = "/AjaxDemo/servlet/ProgressBarServlet?task=create";//请求的地址
var button = document.getElementById("go");
button.disabled = true;//设置按钮不可用
xmlHttp.open("get",url,true);//打开对服务器的连接
xmlHttp.send();//发送请求
}
function callBack()
{
if(xmlHttp.readyState == 4)
{
if(xmlHttp.status == 200)
{
setTimeout("pollServer()",500);//定时调用
}
}
}
function pollServer()
{
createXMLHttpRequest();
var url="/AjaxDemo/servlet/ProgressBarServlet?task=poll&key="+key;
xmlHttp.onreadystatechange = pollCallBack;
xmlHttp.open("GET",url,true);
xmlHttp.send();
}
function pollCallBack()
{
if(xmlHttp.readyState == 4)
{
if(xmlHttp.status == 200)
{
var percent_complete = xmlHttp.responseXML.getElementsByTagName("percent")[0]
.firstChild.data;//从服务器端获得响应信息
var index = processResult(percent_complete);
for(var i = 1; i<=index; i++)
{
var elem = document.getElementById("block"+i);
elem.innerHTML = clear;
elem.style.backgroundColor = bar_color;
var next_cell = i+1;
if(next_cell > index && next_cell <= 9)
{
document.getElementById("block"+next_cell).innerHTML = percent_complete + "%";
}
}
if(index <9 )
{
setTimeout("pollServer()",500);
}
else
{
document.getElementById("complete").innerHTML = "Complete!";
document.getElementById("go").disabled = false;
}
}
}
}
function processResult(percent_complete)
{
var ind;
if(percent_complete.length == 1)
{
ind = 1;
}
else if(percent_complete.length == 2)
{
ind = percent_complete.substring(0,1);
}
else
{
ind = 9;
}
return ind;
}
function checkDiv()
{
var progress_bar = document.getElementById("progressBar");
if(progress_bar.style.visibility == "visible")
{
clearBar();
document.getElementById("complete").innerHTML = "";
}
else
{
progress_bar.style.visibility = "visible";
}
}
function clearBar()
{
for(var i =1; i<10; i++)
{
var elem = document.getElementById("block"+i);
elem.innerHTML = clear;
elem.style.backgroundColor = "white";
}
}
</script>
</head>
<body>
<h1>Ajax Progress Bar Example</h1>
Launch long-running process:
<input type="button" value="Launch" id="go" onclick="go()"/>
<p>
<table align="center">
<tbody>
<tr>
<td>
<div id="progressBar" style="padding:2px;border:solid black 2px;visibility:hidden">
<span id="block1"> </span>
<span id="block2"> </span>
<span id="block3"> </span>
<span id="block4"> </span>
<span id="block5"> </span>
<span id="block6"> </span>
<span id="block7"> </span>
<span id="block8"> </span>
<span id="block9"> </span>
</div>
</td>
</tr>
<tr><td align="center" id="complete"></td></tr>
</tbody>
</table>
</body>
</html>
复制代码 代码如下:
package cn.Ajax.test;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@SuppressWarnings("serial")
public class ProgressBarServlet extends HttpServlet {
private int counter = 1;
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String task = request.getParameter("task");
String res="";
if(task.equals("create")){
res = "<key>1</key>";
counter = 1;
}
else{
String percent = "";
switch (counter) {
case 1: percent = "10";break;
case 2: percent = "23";break;
case 3: percent = "35";break;
case 4: percent = "51";break;
case 5: percent = "64";break;
case 6: percent = "73";break;
case 7: percent = "89";break;
case 8: percent = "100";break;
}
counter++;
res ="<percent>"+percent+"</percent>";
}
PrintWriter out = response.getWriter();
response.setContentType("text/xml");
response.setHeader("Cache-Control", "no-cache");
out.println("<response>");
out.println(res);
out.println("</response>");
out.close();
}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
}
标签：
AJAX,进度条
无为清净楼资源网 Design By www.qnjia.com
广告合作：本站广告合作请联系QQ：858582 申请时备注：广告合作（否则不回）
免责声明：本站文章均来自网站采集或用户投稿，网站不提供任何软件下载或自行开发的软件！ 如有用户或公司发现本站内容信息存在侵权行为，请邮件告知！ 858582#qq.com
免责声明：本站文章均来自网站采集或用户投稿，网站不提供任何软件下载或自行开发的软件！ 如有用户或公司发现本站内容信息存在侵权行为，请邮件告知！ 858582#qq.com
无为清净楼资源网 Design By www.qnjia.com
暂无评论...
苹果官宣WWDC 2024！预计会有大批AI功能 - 2024/11/16
3月27日消息，苹果宣布2024年全球开发者大会（WWDC）将于6月10日至6月14日举行，巧合的是，这次大会与端午假期重合。
苹果官方表示：
在线参加 Apple 每年规模最大的开发者盛会。亲眼见证 Apple 最新平台、技术和工具的发布。了解如何创建和改进你的 App 和游戏。与 Apple 设计师和工程师互动交流，与全球开发者社区建立联系。以上活动均免费在线举行。
探索各种新的工具、框架和功能，助力你打造出理想的 App 和游戏。通过视频讲座学习新技能，与 Apple 专家进行一对一会面，以推进你的项目，完善你的构思。
Swift Student Challenge 旨在支持和鼓舞下一代开发者、创作者和企业家。太平洋时间 3 月 28 日，我们将公布今年的获奖者名单。获奖者将有资格参加在 Apple Park 举办的特别活动。我们还会选出 50 名杰出获胜者，他们将受邀前往库比提诺，获得为期三天的非凡体验，包括参加 Apple Park 的特别活动。
3月27日消息，苹果宣布2024年全球开发者大会（WWDC）将于6月10日至6月14日举行，巧合的是，这次大会与端午假期重合。
苹果官方表示：
在线参加 Apple 每年规模最大的开发者盛会。亲眼见证 Apple 最新平台、技术和工具的发布。了解如何创建和改进你的 App 和游戏。与 Apple 设计师和工程师互动交流，与全球开发者社区建立联系。以上活动均免费在线举行。
探索各种新的工具、框架和功能，助力你打造出理想的 App 和游戏。通过视频讲座学习新技能，与 Apple 专家进行一对一会面，以推进你的项目，完善你的构思。
Swift Student Challenge 旨在支持和鼓舞下一代开发者、创作者和企业家。太平洋时间 3 月 28 日，我们将公布今年的获奖者名单。获奖者将有资格参加在 Apple Park 举办的特别活动。我们还会选出 50 名杰出获胜者，他们将受邀前往库比提诺，获得为期三天的非凡体验，包括参加 Apple Park 的特别活动。
RTX 5090要首发 性能要翻倍！三星展示GDDR7显存
三星在GTC上展示了专为下一代游戏GPU设计的GDDR7内存。
首次推出的GDDR7内存模块密度为16GB，每个模块容量为2GB。其速度预设为32 Gbps（PAM3），但也可以降至28 Gbps，以提高产量和初始阶段的整体性能和成本效益。
据三星表示，GDDR7内存的能效将提高20%，同时工作电压仅为1.1V，低于标准的1.2V。通过采用更新的封装材料和优化的电路设计，使得在高速运行时的发热量降低，GDDR7的热阻比GDDR6降低了70%。
更新日志
2024年11月16日
2024年11月16日
- 第五街的士高《印度激情版》3CD [WAV+CUE][2.4G]
- 三国志8重制版哪个武将智力高 三国志8重制版智力武将排行一览
- 三国志8重制版哪个武将好 三国志8重制版武将排行一览
- 三国志8重制版武将图像怎么保存 三国志8重制版武将图像设置方法
- 何方.1990-我不是那种人【林杰唱片】【WAV+CUE】
- 张惠妹.1999-妹力新世纪2CD【丰华】【WAV+CUE】
- 邓丽欣.2006-FANTASY【金牌大风】【WAV+CUE】
- 饭制《黑神话》蜘蛛四妹手办
- 《燕云十六声》回应跑路：年内公测版本完成95%
- 网友发现国内版《双城之战》第二季有删减：亲亲环节没了！
- 邓丽君2024-《漫步人生路》头版限量编号MQA-UHQCD[WAV+CUE]
- SergeProkofievplaysProkofiev[Dutton][FLAC+CUE]
- 永恒英文金曲精选4《TheBestOfEverlastingFavouritesVol.4》[WAV+CUE]
- 群星《国风超有戏 第9期》[320K/MP3][13.63MB]
- 群星《国风超有戏 第9期》[FLAC/分轨][72.56MB]