Dwr file upload and dwr2 File Upload

Dwr file upload and dwr2 File Upload

Configure FileService service ing:

Dwr. xml

<create creator="new">      <param name="class" value="com.demo.service.FileService"/>    </create>

FileService:

package com.demo.service;import java.io.File;import java.io.IOException;import java.io.InputStream;import org.apache.commons.io.FileUtils;import org.apache.commons.io.FilenameUtils;import org.directwebremoting.WebContext;import org.directwebremoting.WebContextFactory;public class FileService {public String upload(InputStream inputStream,String fileName) throws IOException{String tempFileName=FilenameUtils.getName(fileName);String path=getRealPath("upload");File file=new File(path+File.separator+tempFileName);FileUtils.copyInputStreamToFile(inputStream, file);return file.getPath();}public String getRealPath(String dir){WebContext context=WebContextFactory.get();return context.getSession().getServletContext().getRealPath(dir);}}

Upload. jsp:

<% @ Page language = "java" contentType = "text/html; charset = UTF-8" pageEncoding = "UTF-8" %> <! DOCTYPE html PUBLIC "-// W3C // dtd html 4.01 Transitional // EN" "http://www.w3.org/TR/html4/loose.dtd"> 
 

 

 

Result:

The attachment has been uploaded to the upload folder.

Dwr + ajax for File Upload

After a file is selected, there will be a file address. You can upload this parameter to the background through AJAX to let the background file. length ()
The method returns the length ~

Dwr Image Upload

I wrote a website using dwr and tested it on the local machine. However, once uploaded to the java space, I said IE was dizzy, which was caused by unspecified file names. <Script type = "text/javascript" src ="