AJAX中怎么实现一个进度条效果-创新互联
AJAX中怎么实现一个进度条效果,针对这个问题,这篇文章详细介绍了相对应的分析和解答,希望可以帮助更多想解决这个问题的小伙伴找到更简单易行的方法。
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代码如下:
Ajax Progress Bar Example
Launch long-running process:
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;
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String task = request.getParameter("task");
String res="";
if(task.equals("create")){
res = "
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 ="
}
PrintWriter out = response.getWriter();
response.setContentType("text/xml");
response.setHeader("Cache-Control", "no-cache");
out.println("
out.println(res);
out.println("
out.close();
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
}
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分享名称:AJAX中怎么实现一个进度条效果-创新互联
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