问题
I need to upload images and txt files from my application to a remote server (Just http no ftp) using java. My application is in jsf framework. I searched but no suitable things found. Can anybody guide me? In fact I should upload files to special folder to remote server. I have two application with shared path to upload files, so for accessing them to this files, I decidec to upload shared files(such as images and texts) to third server. First application should upload files to this remote server and second application should read them from it. So my hard part of this solution is to upload files to this third server(in fact remote server) using http.
回答1:
To upload file to a specific folder, your server API must support that.
Server side for receiving uploaded files, you can use http://commons.apache.org/fileupload/
Client side for sending a file upload request, you can use https://hc.apache.org/httpcomponents-client-ga/index.html
回答2:
Have a look at apache commons-fileupload. You can find sample code here.
回答3:
Use following code:
byte[] data = bos.toByteArray();//convert ur file into byte[]
HttpClient httpClient = new DefaultHttpClient();//Client
HttpPost postRequest = new HttpPost(YOUR_SERVER_URL);//Post Request to specified URL
ByteArrayBody bab = new ByteArrayBody(data, "a.txt");
MultipartEntity reqEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);// Multipart data
reqEntity.addPart("uploadingFile", bab); //adding data to request entity
postRequest.setEntity(reqEntity);//adding request entity to post request
HttpResponse response = httpClient.execute(postRequest);
回答4:
As per your requirement, you need to send multiple images and text files. So HTTP multi-part file upload seems to be a suitable solution. You can get further information on this from here.
回答5:
You can use HttpClient.
Send the files using POST as a method.
回答6:
make
@Autowired
ServletContext c;
or take object
byte[] bytes = file.getBytes();
String UPLOAD_FOLDEdR=c.getRealPath("/images");
Path path = Paths.get(UPLOAD_FOLDEdR +"/"+ file.getOriginalFilename());
Files.write(path, bytes);
System.out.println(path);
String Pic_Name =file.getOriginalFilename();
来源：https://stackoverflow.com/questions/10719124/how-to-upload-file-to-http-remote-server-using-java