fileuploadlistener.java

servlet上传下载

package shubin.sample.upload;

import org.apache.commons.fileupload.ProgressListener;
import javax.servlet.http.HttpServletRequest;
public class FileUploadListener implements ProgressListener{
 private HttpServletRequest request=null;
 public FileUploadListener(HttpServletRequest request){
  this.request=request;
 }
 /**
  * 更新状态
  */
 public void update(long pBytesRead, long pContentLength, int pItems){
  FileUploadStatus statusBean= BackGroundService.getStatusBean(request);
  statusBean.setUploadTotalSize(pContentLength);
  //读取完成
      if (pContentLength == -1) {
         statusBean.setStatus("完成对" + pItems +"个文件的读取:读取了 " + pBytesRead + " bytes.");
         statusBean.setReadTotalSize(pBytesRead);
         statusBean.setSuccessUploadFileCount(pItems);
         statusBean.setProcessEndTime(System.currentTimeMillis());
         statusBean.setProcessRunningTime(statusBean.getProcessEndTime());
      //读取中
      } else {
         statusBean.setStatus("当前正在处理第" + pItems +"个文件:已经读取了 " + pBytesRead +                    "/" + pContentLength+ " bytes.");
         statusBean.setReadTotalSize(pBytesRead);
         statusBean.setCurrentUploadFileNum(pItems); 
         statusBean.setProcessRunningTime(System.currentTimeMillis());
      }
             BackGroundService.saveStatusBean(request,statusBean);
 }
}