使用dwr上传文件源码

package com.service; import java.io.File; import java.io.IOException; import java.io.InputStream; import javax.servlet.http.HttpServletRequest; import org.apache.commons.io.FileUtils; import org.apache.commons.io.FilenameUtils; import org.directwebremoting.WebContext; import org.directwebremoting.WebContextFactory; public class Upload { public String upload(InputStream is, String fileName) throws IOException{ //dwr通过WebContext取得HttpServletRequest WebContext wc = WebContextFactory.get(); HttpServletRequest req = wc.getHttpServletRequest(); String realpath = req.getSession().getServletContext().getRealPath("upload");//获取根目录下upload文件下路径 String fn = FilenameUtils.getName(fileName);//获取上传的文件的名称 String filepath = realpath + "/" + fn;//文件上传存放的路径 FileUtils.copyInputStreamToFile(is, new File(filepath));//将输入流直接copy成文件 return fn; } }