这是我的一种方法(Restlet 2.0)的粘贴。在这里,我有一个包含一个文件上传和其他字段的表单,因此它相当完整:
@Post
public Representation createTransaction(Representation entity) {
Representation rep = null;
if (entity != null) {
if (MediaType.MULTIPART_FORM_DATA.equals(entity.getMediaType(), true)) {
// 1/ Create a factory for disk-based file items
DiskFileItemFactory factory = new DiskFileItemFactory();
factory.setSizeThreshold(1000240);
// 2/ Create a new file upload handler
RestletFileUpload upload = new RestletFileUpload(factory);
List<FileItem> items;
try {
// 3/ Request is parsed by the handler which generates a list of FileItems
items = upload.parseRequest(getRequest());
Map<String, String> props = new HashMap<String, String>();
File file = null;
String filename = null;
for (final Iterator<FileItem> it = items.iterator(); it.hasNext(); ) {
FileItem fi = it.next();
String name = fi.getName();
if (name == null) {
props.put(fi.getFieldName(), new String(fi.get(), "UTF-8"));
} else {
String tempDir = System.getProperty("java.io.tmpdir");
file = new File(tempDir + File.separator + "file.txt");
filename = name;
fi.getInputStream();
fi.write(file);
}
}
// [...] my processing code
String redirectUrl = ...; // address of newly created resource
getResponse().redirectSeeOther(redirectUrl);
} catch (Exception e) {
// The message of all thrown exception is sent back to
// client as simple plain text
getResponse().setStatus(Status.CLIENT_ERROR_BAD_REQUEST);
e.printStackTrace();
rep = new StringRepresentation(e.getMessage(), MediaType.TEXT_PLAIN);
}
} else {
// other format != multipart form data
getResponse().setStatus(Status.CLIENT_ERROR_BAD_REQUEST);
rep = new StringRepresentation("Multipart/form-data required", MediaType.TEXT_PLAIN);
}
} else {
// POST request with no entity.
getResponse().setStatus(Status.CLIENT_ERROR_BAD_REQUEST);
rep = new StringRepresentation("Error", MediaType.TEXT_PLAIN);
}
return rep;
}
我最终会将它重构为更通用的东西,但这就是我现在所拥有的。