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文件大小: 2mb
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上传时间: 2012-08-23
详细说明： 文件的上传功能，只要自己构造一个servlet即可。 public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException { response.setContentType(CONTENT_TYPE); // Set the servlet's response type to XML. PrintWriter out = null; String uploadDirectory = this.getServletContext().getInitParameter("UploadDirectory"); if(!uploadDirectory.contains(":")) { String rootpath = request.getRealPath(request.getRequestURI()); rootpath = rootp ath.substring(0, rootpath .lastIndexOf("\\FlowMonitoringSystemJava\\uploadhandler")); uploadDirectory=rootpath+ uploadDirectory.replace('/', '\\'); } // Get the upload directory from the web.xml file. ArrayList allowedFormats = new ArrayList(); // Allowed image format types are stored in an ArrayList. allowedFormats.add("jpeg"); allowedFormats.add("png"); allowedFormats.add("gif"); allowedFormats.add("jpg"); File disk = null; FileItem item = null; DiskFileItemFactory factory = new DiskFileItemFactory(); // We use the FileUpload package provided by Apache to process the request. String statusMessage = ""; ListIterator iterator = null; List items = null; ServletFileUpload upload = new ServletFileUpload( factory ); // SAX 2.0 ContentHandler. TransformerHandler hd = null; try { out = response.getWriter(); StreamResult streamResult = new StreamResult(out); // Used for writing debug errors to the screen. SAXTransformerFactory tf = (SAXTransformerFactory) SAXTransformerFactory.newInstance(); // SAX XML parsing factory. items = upload.parseRequest(request); iterator = items.listIterator(); hd = tf.newTransformerHandler(); // Set the XML handler. Transformer serializer = hd.getTransformer(); // You'll serialize the data. serializer.setOutputProperty(OutputKeys.ENCODING,"UTF-8"); // You'll use UTF-8 for the XML encoding. serializer.setOutputProperty(OutputKeys.DOCTYPE_SYSTEM,"response.dtd"); // Set the doctype to the custom DTD. serializer.setOutputProperty(OutputKeys.INDENT,"yes"); // Though not required, you can provide automatic indentation of the XML. serializer.setOutputProperty(OutputKeys.METHOD,"xml"); // Identifies the method used for outputting the result tree. hd.setResult(streamResult); hd.startDocument(); // Start the XML document. AttributesImpl atts = new AttributesImpl(); // Declare and instantiate a new attributes object. hd.startElement("","","response",atts); // Start the main response element. while( iterator.hasNext() ) // Loop over the items in the request. { ...展开收缩
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