public File doAttachment(HttpServletRequest request)
throws ServletException, IOException {
File file = null;
DiskFileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(factory);
try {
List<?> items = upload.parseRequest(request);
Iterator<?> itr = items.iterator();
while (itr.hasNext()) {
FileItem item = (FileItem) itr.next();
if (item.isFormField()) {
parameters
.put(item.getFieldName(), item.getString("UTF-8"));
} else {
File tempFile = new File(item.getName());
file = new File(sc.getRealPath("/") + savePath, tempFile
.getName());
item.write(file);
}
}
} catch (Exception e) {
Logger logger = Logger.getLogger(SendAttachmentMailServlet.class);
logger.error("邮件发送出了异常", e);
}
return file;
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
try {
List<FileItem> items = new ServletFileUpload(new DiskFileItemFactory()).parseRequest(request);
for (FileItem item : items) {
if (item.isFormField()) {
// Process regular form field (input type="text|radio|checkbox|etc", select, etc).
String fieldname = item.getFieldName();
String fieldvalue = item.getString();
// ... (do your job here)
} else {
// Process form file field (input type="file").
String fieldname = item.getFieldName();
String filename = FilenameUtils.getName(item.getName());
InputStream filecontent = item.getInputStream();
// ... (do your job here)
}
}
} catch (FileUploadException e) {
throw new ServletException("Cannot parse multipart request.", e);
}
// ...
}
/**
* Handles the HTTP <code>POST</code> method.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String id_book = "", len = "";
// Imposto il content type della risposta e prendo l'output
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
// La dimensione massima di ogni singolo file su system
int dimensioneMassimaDelFileScrivibieSulFileSystemInByte = 10 * 1024 * 1024; // 10 MB
// Dimensione massima della request
int dimensioneMassimaDellaRequestInByte = 20 * 1024 * 1024; // 20 MB
// Cartella temporanea
File cartellaTemporanea = new File("C:\\tempo");
try {
// Creo un factory per l'accesso al filesystem
DiskFileItemFactory factory = new DiskFileItemFactory();
// Setto la dimensione massima di ogni file, opzionale
factory.setSizeThreshold(dimensioneMassimaDelFileScrivibieSulFileSystemInByte);
// Setto la cartella temporanea, Opzionale
factory.setRepository(cartellaTemporanea);
// Istanzio la classe per l'upload
ServletFileUpload upload = new ServletFileUpload(factory);
// Setto la dimensione massima della request, opzionale
upload.setSizeMax(dimensioneMassimaDellaRequestInByte);
// Parso la riquest della servlet, mi viene ritornata una lista di FileItem con
// tutti i field sia di tipo file che gli altri
List<FileItem> items = upload.parseRequest(request);
/*
*
* Giro per tutti i campi inviati
*/
for (int i = 0; i < items.size(); i++) {
FileItem item = items.get(i);
// Controllo se si tratta di un campo di input normale
if (item.isFormField()) {
// Prendo solo il nome e il valore
String name = item.getFieldName();
String value = item.getString();
if (name.equals("id_book")) {
id_book = value;
}
if (name.equals("len")) {
len = value;
}
}
// Se si stratta invece di un file ho varie possibilità
else {
// Dopo aver ripreso tutti i dati disponibili
String fieldName = item.getFieldName();
String fileName = item.getName();
String contentType = item.getContentType();
boolean isInMemory = item.isInMemory();
long sizeInBytes = item.getSize();
// scrivo direttamente su filesystem
File uploadedFile =
new File("/Users/Babol/Desktop/dVruhero/aMuseWebsite/web/userPhoto/" + fileName);
// Solo se veramente ho inviato qualcosa
if (item.getSize() > 0) {
item.write(uploadedFile);
DBconnection.EditCoverBook(fileName, Integer.parseInt(id_book));
}
}
}
// out.println("</body>");
// out.println("</html>");
} catch (Exception ex) {
System.out.println("Errore: " + ex.getMessage());
} finally {
if (len.equals("ita")) response.sendRedirect("modify_book.jsp?id_book=" + id_book);
else response.sendRedirect("modify_book_eng.jsp?id_book=" + id_book);
}
}
/**
* Utility method to decode a multipart/fomr-data stream and return a Map of parameters of type
* Object[], each of which can be a String or FileData.
*/
public static Map<String, Object[]> getParameterMapMultipart(
PipelineContext pipelineContext,
final ExternalContext.Request request,
String headerEncoding) {
final Map<String, Object[]> uploadParameterMap = new HashMap<String, Object[]>();
try {
// Setup commons upload
// Read properties
// NOTE: We use properties scoped in the Request generator for historical reasons. Not too
// good.
int maxSize = RequestGenerator.getMaxSizeProperty();
int maxMemorySize = RequestGenerator.getMaxMemorySizeProperty();
final DiskFileItemFactory diskFileItemFactory =
new DiskFileItemFactory(maxMemorySize, SystemUtils.getTemporaryDirectory());
final ServletFileUpload upload =
new ServletFileUpload(diskFileItemFactory) {
protected FileItem createItem(Map headers, boolean isFormField)
throws FileUploadException {
if (isFormField) {
// Handle externalized values
final String externalizeFormValuesPrefix =
org.orbeon.oxf.properties.Properties.instance()
.getPropertySet()
.getString(ServletExternalContext.EXTERNALIZE_FORM_VALUES_PREFIX_PROPERTY);
final String fieldName = getFieldName(headers);
if (externalizeFormValuesPrefix != null
&& fieldName.startsWith(externalizeFormValuesPrefix)) {
// In this case, we do as if the value content is an uploaded file so that it can
// be externalized
return super.createItem(headers, false);
} else {
// Just create the FileItem using the default way
return super.createItem(headers, isFormField);
}
} else {
// Just create the FileItem using the default way
return super.createItem(headers, isFormField);
}
}
};
upload.setHeaderEncoding(headerEncoding);
upload.setSizeMax(maxSize);
// Add a listener to destroy file items when the pipeline context is destroyed
pipelineContext.addContextListener(
new PipelineContext.ContextListenerAdapter() {
public void contextDestroyed(boolean success) {
for (final String name : uploadParameterMap.keySet()) {
final Object values[] = uploadParameterMap.get(name);
for (final Object currentValue : values) {
if (currentValue instanceof FileItem) {
final FileItem fileItem = (FileItem) currentValue;
fileItem.delete();
}
}
}
}
});
// Wrap and implement just the required methods for the upload code
final InputStream inputStream;
try {
inputStream = request.getInputStream();
} catch (IOException e) {
throw new OXFException(e);
}
final RequestContext requestContext =
new RequestContext() {
public int getContentLength() {
return request.getContentLength();
}
public InputStream getInputStream() {
// NOTE: The upload code does not actually check that it doesn't read more than the
// content-length
// sent by the client! Maybe here would be a good place to put an interceptor and make
// sure we
// don't read too much.
return new InputStream() {
public int read() throws IOException {
return inputStream.read();
}
};
}
public String getContentType() {
return request.getContentType();
}
public String getCharacterEncoding() {
return request.getCharacterEncoding();
}
};
// Parse the request and add file information
try {
for (Object o : upload.parseRequest(requestContext)) {
final FileItem fileItem = (FileItem) o;
// Add value to existing values if any
if (fileItem.isFormField()) {
// Simple form field
// Assume that form fields are in UTF-8. Can they have another encoding? If so, how is
// it specified?
StringUtils.addValueToObjectArrayMap(
uploadParameterMap,
fileItem.getFieldName(),
fileItem.getString(STANDARD_PARAMETER_ENCODING));
} else {
// File
StringUtils.addValueToObjectArrayMap(
uploadParameterMap, fileItem.getFieldName(), fileItem);
}
}
} catch (FileUploadBase.SizeLimitExceededException e) {
// Should we do something smart so we can use the Presentation
// Server error page anyway? Right now, this is going to fail
// miserably with an error.
throw e;
} catch (UnsupportedEncodingException e) {
// Should not happen
throw new OXFException(e);
} finally {
// Close the input stream; if we don't nobody does, and if this stream is
// associated with a temporary file, that file may resist deletion
if (inputStream != null) {
try {
inputStream.close();
} catch (IOException e) {
throw new OXFException(e);
}
}
}
return uploadParameterMap;
} catch (FileUploadException e) {
throw new OXFException(e);
}
}
