用javabean在JSP页面中实现进度条效果
public class TaskBean extends Thread{
public TaskBean(){
}
private int percent=0;
private boolean complete=false;
public synchronized void run() {
while(true){
if(percent>=100){
complete=true;
return;
}
try {
Thread.sleep(1000);
} catch (Exception e) {
System.err.println("TaskBean.run()"+e.getMessage());
}
percent+=10;
}
}
public boolean isComplete(){
return complete;
}
public int getPercent(){
return percent;
}
}
start.jsp
<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<html>
<head>
<base href="<%=basePath%>">
&n
相关文档：
当在JSP的page指令中设置errorPage="url"就可以设置处理异常事件的JSP文件。如可以这样写：
<%@ page errorPage="error.jsp" %>
这样的话，当页面中出现异常的� ......
context.xml 文件夹中
<Context path="/wap"
docBase="D:\IDE\MyEclipse\wap\WebRoot" reloadable="false" >
request.getContextPath(); -==> /wap
this.getServletContext().getRealPath("") ;// D:\IDE\MyEclipse\wap\WebRoot
......
JS代码
<script
type="text/javascript">
function closewindow(){
window.returnValue = true;
window.close();
}
function clock(){
i = i -1;
if(document.getElementById("info")){
document.getElementById("info").innerHTML
......
JSP九大内置对象：
1.与Servlet有关的隐含的对象
(1)page page对象对应Java中的关键字this,它代表当前JSP页面
(2)config Config对象使用Web容� ......
