Using Dropbox Java API for uploading files to dropbox

Question

I want to upload files using the java API for DropBox. The following code gets me the oauth_token and oauth_secret. but when ever I try to upload a file I get a exception.
Java Class

package com.dropbox.client;

import com.dropbox.client.DropboxAPI.Config;
import java.io.File;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;

/**
 *
 * @author Charan
 */
public class DBmain {

    public DBmain() {
        System.setProperty("java.net.useSystemProxies", "true");
        Map configuration= new HashMap();
        configuration.put("consumer_key", "XXXXXXXXXXXXXXXX");
        configuration.put("consumer_secret", "XXXXXXXXXXXXXXXX");
        configuration.put("request_token_url", "http://api.dropbox.com/0/oauth/request_token");
        configuration.put("access_token_url", "http://api.dropbox.com/0/oauth/access_token");
        configuration.put("authorization_url", "http://api.dropbox.com/0/oauth/authorize");
        configuration.put("port",80);
        //configuration.put("trusted_access_token_url","http://api.getdropbox.com/0/token");
        configuration.put("server","api.getdropbox.com");
        configuration.put("content_server","api-content.dropbox.com");
        String username="[email protected]";
        String password="myPassword";
        try {
           Authenticator auth = new Authenticator(configuration);
           String url = auth.retrieveRequestToken("");
           String access_key = auth.getTokenKey();
           String access_secret = auth.getTokenSecret();
           System.out.println(access_key);
           System.out.println(access_secret);

           DropboxAPI api = new DropboxAPI();
           DropboxAPI.Config conf = api.new Config(configuration);
           api.authenticateToken("XXXXXXXXXXXX", "XXXXXXXXXXX", conf);
           System.out.println(api.isAuthenticated());
           URL resource = this.getClass().getResource("/config/testing.json");
            
           File f= new File(resource.toURI());
           api.putFile("dropbox", "/Project", f);

           //api.accountInfo(); //even this method gives me a exception
        } catch (Exception e) {
                e.printStackTrace();
        }
    }
    
    public static void main(String[] args) {
            new DBmain();
        }
}

Exception

Exception in thread "main" java.lang.NoSuchMethodError: org.apache.http.protocol.BasicHttpContext: method <init>()V not found
    at org.apache.http.impl.client.DefaultHttpClient.createHttpContext(DefaultHttpClient.java:205)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:532)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
    at com.dropbox.client.DropboxClient.putFile(DropboxClient.java:299)
    at com.dropbox.client.DropboxAPI.putFile(DropboxAPI.java:463)
    at com.dropbox.client.DBmain.<init>(DBmain.java:58)
    at com.dropbox.client.DBmain.main(DBmain.java:70)
Java Result: 1

Some extra info

Edit Date:18-6-2011

I changed the httpclient-4.0-beta1.jar and httpcore-4.0-alpha6.jar to httpclient-4.0.jar and httpcore-4.0.1.jar respectively and I no longer get the above exception [ java.lang.NoSuchMethodError ] This stackoverflow question helped me in solving this : java.lang.NoSuchMethodError: org.apache.http.protocol.BasicHttpContext: method <init>()V not found

But Now I get UnknownhostException on execution of any methods of the API

com.dropbox.client.DropboxException: java.net.UnknownHostException: api.getdropbox.com:80
    at com.dropbox.client.RESTUtility.request(RESTUtility.java:250)
    at dump.DropboxClient.accountInfo(DropboxClient.java:121)
    at com.charan.client.DBmain.<init>(DBmain.java:57)
    at com.charan.client.DBmain.main(DBmain.java:65)
Caused by: java.net.UnknownHostException: api.getdropbox.com:80
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:436)
    at java.net.Socket.connect(Socket.java:525)
    at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:123)
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:123)
    at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:147)
    at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:101)
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:381)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:641)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:576)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:554)
    at com.dropbox.client.RESTUtility.executeRequest(RESTUtility.java:172)
    at com.dropbox.client.RESTUtility.request(RESTUtility.java:248)
    ... 3 more

You should do the following: Post an answer to your question with the information you added above that helped you resolve the original question. Then create a new question about the UnknownHostException. — Jim Garrison
– Jim Garrison, Commented Jun 20, 2011 at 17:17
BTW, api.getdropbox.com resolves to 174.36.30.69 for me. What happens if you try pinging the hostname from the command line? — Jim Garrison
– Jim Garrison, Commented Jun 20, 2011 at 17:17
@Jim I tried using the ping command but every time I use it with any host I get the same error Ping request could not find host google.com. Please check the name and try again. I'm using my cellphone as a modem with proxy. Well I'm able to surf the web but the ping command doesn't work at all. Root cause of my unknownhostException . — Charanraj Golla
– Charanraj Golla, Commented Jun 21, 2011 at 3:14
@charanraj If you're still struggling with this, I've thrown up an example here that may help: berry120.blogspot.com/2012/02/dropbox-java-api.html — Michael Berry
– Michael Berry, Commented Feb 18, 2012 at 13:27

DannyGolhar · Accepted Answer · 2014-03-06 05:19:39Z

2

You should use http-client 4.0.3 jar

answered Mar 6, 2014 at 5:19

DannyGolhar

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Comments

Jim Garrison · Accepted Answer · 2011-06-17 16:50:48Z

1

Your class should NOT be in package com.dropbox.client. Try moving it to a different (i.e. com.yourname.client). It looks like you might be creating a name clash and inadvertently overriding something in the Dropbox client API.

answered Jun 17, 2011 at 16:50

Jim Garrison

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1 Comment

Charanraj Golla Over a year ago

I tried moving the class to another package but sadly it didn't help.

Thorbjørn Ravn Andersen · Accepted Answer · 2012-05-16 17:32:07Z

0

You have specified api.getdropbox.com:80 as the host name. Try using api.getdropbox.com instead.

answered May 16, 2012 at 17:32

Thorbjørn Ravn Andersen

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