[Web] Upload fichier via formulaire HTTP

Bonsoir,

J' essaie d' uploader du texte sur un serveur web via un formulaire HTTP(méthode POST).
Je ne trouve pas d' exemple pour ce cas précis.

J' ai essayé:
Code:

1 2 3 4 5 6 7 8 9 10 11 12 URL url = new URL("http://www.monsite.net/upload.php"); HttpURLConnection con = (HttpURLConnection)url.openConnection(); con.setDoInput(true); con.setDoOutput(true); con.setUseCaches(false); con.setRequestMethod("POST"); con.setRequestProperty("Content-Type","multipart/form-data"); PrintWriter out = new PrintWriter(con.getOutputStream()); out.print("texte à envoyer"); out.flush(); out.close();
ce qui ne fonctionne pas bien entendu.
Auriez vous une méthode plus appropriée?

Merci

[ Modéré par Bulbo ]
Ajout d'un tag dans le titre
:arrow: Les Règles du Forum

voila un exemple :

Code:

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import java.awt.*;
import java.net.*;
import java.io.*;
public class srvHead extends java.applet.Applet implements Runnable{
	String c = "";
 
 
	public srvHead(){
		new Thread(this).start();
	}
	public void init(){
//		new Thread(this).start();
	}
	public void run(){
		try{
// run this as an application first, when it works than make an applet of it
			URL u = new URL("http://localhost:101/test");
			URLConnection c = u.openConnection();
			// post multipart data
			c.setDoOutput(true);
			c.setDoInput(true);
			c.setUseCaches(false);
			// set some request headers
			c.setRequestProperty("Connection", "Keep-Alive");
// TODO: get codebase of the this (the applet) to use for referer
			c.setRequestProperty("HTTP_REFERER", "http://applet.getcodebase");
			c.setRequestProperty("Content-Type", "multipart/form-data; boundary=****4353");
			DataOutputStream dstream = new DataOutputStream(c.getOutputStream());
// write content to the server, begin with the tag that says a content element is comming
			dstream.writeBytes("--****4353\r\n");
// discribe the content, (in this case it's a file)
			dstream.writeBytes("Content-Disposition: form-data; name=\"myfile\"; filename=\"C:\\myFile.wav\"\r\nContent-Type: application/octet-stream\r\n\r\n");
// open a file
			String title = "Frame Title";
			Frame frame = new Frame("Select a file");
			FileDialog fd = new FileDialog(frame);
			frame.setSize(400, 400);
			fd.show();
			System.out.println(fd.getDirectory() + fd.getFile());
			File f = new File(fd.getDirectory() + fd.getFile());
			FileInputStream fi = new FileInputStream(f);
// keep reading 1000 bytes from the file
			byte[] bt = new byte[1000];
			int cnt = fi.read(bt);
			while(cnt==bt.length){
				dstream.write(bt,0,cnt);
				cnt = fi.read(bt);
			}
// send the last bit to the server
			dstream.write(bt,0,cnt);
// now close the file and let the web server know this is the end of this form part
			dstream.writeBytes("\r\n--****4353\r\n");
// send a form part named TargetURL with the value: /IntranetContent/TelephoneGuide/Upload/
			dstream.writeBytes("Content-Disposition: form-data; name=\"TargetURL\"\r\n\r\n");
			dstream.writeBytes("/IntranetContent/TelephoneGuide/Upload/");
// let the web server know this is the end of this form part
			dstream.writeBytes("\r\n--****4353\r\n");
// send a form part named redirectURL with the value: http://none/none
			dstream.writeBytes("Content-Disposition: form-data; name=\"redirectURL\"\r\n\r\n");
			dstream.writeBytes("http://none/none");
// this is the last information part of the multi part request, close the request
// close the multipart form request
			dstream.writeBytes("\r\n--****4353--\r\n\r\n");
			dstream.flush();
			dstream.close();
			fi.close();
			try{
				DataInputStream in =
					new DataInputStream(
						new BufferedInputStream(c.getInputStream()));
				String sIn = in.readLine();
				boolean b = true;
// TODO: this will loop forever unless you make sure your server page
// sends a last line like "I am done"
// than you can do wile(sIn.compareTo("I am done")!=0){
				while(sIn!=null){
					if(sIn!=null){
						System.out.println(sIn);
					}
					sIn = in.readLine();
				}
			}catch(Exception e){
				e.printStackTrace();
			}
		}catch(Exception e){
			e.printStackTrace();
		}
	}
	public static void main(String[] args) {
			new srvHead();
	}
}

Je ne sais pas si tu as une servlet ou pas mais si c'est le cas regarde ça :

http://www.servlets.com/cos/

Cette API te permettra de faire de l'upload de fichier facilement

Antoine