java - Posting image to facebook page -


i want post images facebook page. below code tried restfb manual page. it's showing kind of error not getting understood. in publish("me/photos") should pass username instead of writing me?. image bird.jpg exists in project folder. can me? kind of appreciated

facebookclient facebookclient = null; facebooktype publishphotoresponse = facebookclient.publish("me/photos",  facebooktype.class, binaryattachment.with("bird.jpg",  facebookupload.class.getresourceasstream("/bird.jpg")),               parameter.with("message", "test cat"));  system.out.println("published photo id: " +  publishphotoresponse.getid());

this error encountered

exception in thread "main" java.lang.illegalargumentexception: binary attachment data cannot null. @ com.restfb.binaryattachment.<init>(binaryattachment.java:68) @ com.restfb.binaryattachment.with(binaryattachment.java:113) @ pkg.am.ncrb.shot.facebookupload.main(facebookupload.java:31)

also tried below code

but none of working

inputstream = new fileinputstream(new file("bird.jpg"));     facebooktype publishvideoresponse =facebookclient.publish("me/photos",facebooktype.class,             binaryattachment.with("bird.jpg", is),             parameter.with("message", "my photo post"));

and it's getting exception

exception in thread "main" java.lang.nullpointerexception @ pkg.am.ncrb.shot.facebookupload.main(facebookupload.java:35)

i need sample piece of code push image facebook. don't know went wrong.

  1. in java, can't use object set null. you'll nullpointerexception.

    the object null facebookclient. should initialize it:

    facebookclient facebookclient = new defaultfacebookclient();

  2. where putting photo? if it's embedded in jar file, use facebookupload.class.getresourceasstream("/bird.jpg"). if it's in current directory (probably), use new fileinputstream(new file("bird.jpg")).


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