fileuploadutil_touxiang.java

上传附件的简单功能,用在ECLIPSEL里可以直接运行

package util;

import java.io.File;
import java.text.SimpleDateFormat;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.fileupload.DiskFileUpload;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;

public class FileUploadUtil_touxiang {
	public HashMap upload(HttpServletRequest request){
		HashMap values = new HashMap();
		
		String dir=request.getSession().getServletContext().getRealPath("/");
		//System.out.println("FileUploadUtil->upload->dir..."+dir);
		DiskFileUpload fu = new DiskFileUpload();

		fu.setSizeMax(4194304);                 //设置文件大小.
		fu.setSizeThreshold(4096);              //设置缓冲大小.
		fu.setRepositoryPath(dir+"temp");      //设置临时目录.
		
		List fileItems;
		try {
			fileItems = fu.parseRequest(request);
			Iterator i = fileItems.iterator();
			while(i.hasNext()){				
				FileItem fi = (FileItem)i.next();
				if(fi.isFormField()){         //这是用来确定是否为文件属性					
					values.put(fi.getFieldName(), fi.getString());	
					//System.out.println(fi.getFieldName()+","+fi.getString());
				}else{                                          //这里开始外理文件				
					String fileName = fi.getName();            // 返回文件名包括客户机路径
					if(fileName!=null && !fileName.equals("")){
						//
						values.put("real_filename", fileName);
						SimpleDateFormat tempDate=new SimpleDateFormat("yyyy-MM-dd hh-mm-ss");
						String datetime=tempDate.format(new java.util.Date());
						//
						fileName = datetime+fileName.substring(fileName.lastIndexOf('.'));
						//fileName = datetime+fileName.substring(fileName.lastIndexOf('.'));	
						System.out.println("FileUploadUtil->upload->datetime........"+datetime);
						fi.write(new File(dir+"/upload_touxiang/"+fileName));// 写文件到服务器.
						values.put(fi.getFieldName(), fileName);	
						System.out.println("FileUploadUtil->"+fi.getFieldName()+","+fileName);	
					}
				}
			}
		}catch (FileUploadException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		return values;
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub

	}

}