Servlet上传文件

1:WEB-INF/lib下引入两个包 commons-fileupload.1.2.jar commons-io-1.3.2.jar 2:Form表单添加enctype="multipart/form-data"属性 3:写个Servlet //判断表单是否为文件上传表单，如果是就执行上传 boolean isMultipart = ServletFileUpload.isMultipartContent(request); //构建文件上传处理对象 FileItemFactory factory = new DiskFileItemFactory(); ServletFileUpload upload = new ServletFileUpload(factory); Iterator items; //解析表单提交的所有内容 items = upload.parseRequest(request).iterator(); while(items.hasNext()){ FileItem item = (FileItem) items.next(); if(!item.isFormField()){ //取出文件名，和服务器存储路经，上传的文件将被存储在当前项目的file文件夹下 String name = item.getName(); String fileName = name.substring(name.lastIndexOf("//")+1,name.length()); String path = request.getRealPath("file")+File.separatorChar+fileName; //上传文件 File uploadFile = new File(path); item.write(uploadFile); response.setContentType("text/html"); response.setCharacterEncoding("UTF-8"); PrintWriter out = response.getWriter(); out.print("上传文件名为"+name+""); out.print("保存地址为:"+path); out.close(); } }