Discussion :

[nik00s]

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 :

Sélectionner tout - Visualiser dans une fenêtre à part

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
Les Règles du Forum

[peppena]

voila un exemple :

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
 
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();
	}
}

[toinou780]

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