我已经创建了一个Java swing应用程序，用于使用Java servlet下载文件。
客户端计算机有一个GUI，提供要下载的文件列表。
如何设置进度条以监控文件下载？
这是客户机的代码：
b2.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
HttpClient client = new DefaultHttpClient();
String value = comboBox1.getSelectedItem().toString();
HttpGet post = new HttpGet(
"http://localhost:8080/may16/FileDownloadServletNormal?value="
+ value + "&type=normal");
try {
LocalTime time1 = new LocalTime();
// executing the POST request
HttpResponse rsp = client.execute(post);
// reading response data
HttpEntity entity = rsp.getEntity();
InputStream inputStream = entity.getContent();
OutputStream outputStream = new FileOutputStream(
new File("D://temp//downloaded//" + value));
IOUtils.copy(inputStream, outputStream);
/*try {
Thread.sleep(25000);
}
catch (InterruptedException e) {
//TODO Auto-generated catch block
e.printStackTrace();
}*/
outputStream.flush();
outputStream.close();
LocalTime time2 = new LocalTime();
Seconds sec = Seconds.secondsBetween(time1, time2);
System.out.println("Time Taken:" + sec.getSeconds() + "secs");
//normalDownloadTime.setText("Normal download time:"+sec.getSeconds());
normalDownloadTime.setText("Normal download time:"
+ sec.getSeconds() + "secs");
// String response = convertStreamToString(inputStream);
// System.out.println(response);
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
});