uploader un fichier sur un serveur via httpclient
Bonjour à tous je souhaite depuis peu uploader un fichier sur mon serveur via le protocole http. En effet je développe une application desktop qui doit envoyer et recevoir des fichiers sur un serveur distant, jusqu'ici la réception se passe bien mais l'envoi ne marche toujours pas. Voilà le code que j'ai trouvé dans mes recherches:
Code:
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package Admin;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpRequestBase;
import org.apache.http.entity.mime.MultipartEntity;
import org.apache.http.entity.mime.content.FileBody;
import org.apache.http.entity.mime.content.StringBody;
import org.apache.http.impl.client.DefaultHttpClient;
@SuppressWarnings("deprecation")
public class SampleFileUpload {
/**
* A generic method to execute any type of Http Request and constructs a response object
* @param requestBase the request that needs to be exeuted
* @return server response as <code>String</code>
*/
private static String executeRequest(HttpRequestBase requestBase){
String responseString = "" ;
InputStream responseStream = null ;
HttpClient client = new DefaultHttpClient () ;
try{
HttpResponse response = client.execute(requestBase) ;
if (response != null){
HttpEntity responseEntity = response.getEntity() ;
if (responseEntity != null){
responseStream = responseEntity.getContent() ;
if (responseStream != null){
BufferedReader br = new BufferedReader (new InputStreamReader (responseStream)) ;
String responseLine = br.readLine() ;
String tempResponseString = "" ;
while (responseLine != null){
tempResponseString = tempResponseString + responseLine + System.getProperty("line.separator") ;
responseLine = br.readLine() ;
}
br.close() ;
if (tempResponseString.length() > 0){
responseString = tempResponseString ;
}
}
}
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}finally{
if (responseStream != null){
try {
responseStream.close() ;
} catch (IOException e) {
e.printStackTrace();
}
}
}
client.getConnectionManager().shutdown() ;
return responseString ;
}
/**
* Method that builds the multi-part form data request
* @param urlString the urlString to which the file needs to be uploaded
* @param file the actual file instance that needs to be uploaded
* @param fileName name of the file, just to show how to add the usual form parameters
* @param fileDescription some description for the file, just to show how to add the usual form parameters
* @return server response as <code>String</code>
*/
public String executeMultiPartRequest(String urlString, File file, String fileName, String fileDescription) {
HttpPost postRequest = new HttpPost (urlString) ;
try{
MultipartEntity multiPartEntity = new MultipartEntity () ;
//The usual form parameters can be added this way
multiPartEntity.addPart("fileDescription", new StringBody(fileDescription != null ? fileDescription : "")) ;
multiPartEntity.addPart("fileName", new StringBody(fileName != null ? fileName : file.getName())) ;
/*Need to construct a FileBody with the file that needs to be attached and specify the mime type of the file. Add the fileBody to the request as an another part.
This part will be considered as file part and the rest of them as usual form-data parts*/
FileBody fileBody = new FileBody(file, "application/octect-stream") ;
multiPartEntity.addPart("attachment", fileBody) ;
postRequest.setEntity(multiPartEntity) ;
}catch (UnsupportedEncodingException ex){
ex.printStackTrace() ;
}
return executeRequest (postRequest) ;
}
public static void main(String args[]){
SampleFileUpload fileUpload = new SampleFileUpload () ;
File file = new File ("D:\\ages\\logo_ages.jpg") ;
String response = fileUpload.executeMultiPartRequest("http://127.0.0.1/images/logo_ages.jpg", file, file.getName(), "File Upload test Hydrangeas.jpg description") ;
System.out.println("Response : "+response);
}
} |
Lorsque j’exécute voilà ce qui se passe:
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log4j:WARN No appenders could be found for logger (org.apache.http.impl.conn.BasicClientConnectionManager).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
Response : <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
<title>Object not found!</title>
<link rev="made" href="mailto:postmaster@localhost" />
<style type="text/css"><!--/*--><![CDATA[/*><!--*/
body { color: #000000; background-color: #FFFFFF; }
a:link { color: #0000CC; }
p, address {margin-left: 3em;}
span {font-size: smaller;}
/*]]>*/--></style>
</head>
<body>
<h1>Object not found!</h1>
<p>
The requested URL was not found on this server.
If you entered the URL manually please check your
spelling and try again.
</p>
<p>
If you think this is a server error, please contact
the <a href="mailto:postmaster@localhost">webmaster</a>.
</p>
<h2>Error 404</h2>
<address>
<a href="/">127.0.0.1</a><br />
<span>Apache/2.4.12 (Win32) OpenSSL/1.0.1m PHP/5.6.11</span>
</address>
</body>
</html> |
