配置FileService映射:
FileService:dwr.xml
<create creator="new"> <param name="class" value="com.demo.service.FileService"/> </create>
upload.jsp: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); } }
<%@ 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"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>文件上传</title> <script type="text/javascript" src="<%=request.getContextPath()%>/dwr/engine.js"></script> <script type="text/javascript" src="<%=request.getContextPath()%>/dwr/util.js"></script> <script type="text/javascript" src="<%=request.getContextPath()%>/dwr/interface/FileService.js"></script> <script type="text/javascript"> function upload(){ var file=dwr.util.getValue("file"); FileService.upload(file,file.value,function(result){ alert(result); }); } </script> </head> <body> 附件:<input type="file" id="file" name="file"><br/> <button onclick="upload();">上传</button> </body> </html>
结果:
附件已上传到upload目录中
