Http Put Request

I am using the HttpPut to communicate with server in Android, the response code I am getting is 500.After talking with the server guy he said prepare the string like below and send

Solution 1:

I recently had to figure out a way to get my android app to communicate with a WCF service and update a particular record. At first this was really giving me a hard time figuring it out, mainly due to me not knowing enough about HTTP protocols, but I was able to create a PUT by using the following:

URLurl=newURL("http://(...your service...).svc/(...your table name...)(...ID of record trying to update...)");

    //--This code works for updating a record from the feed--HttpPuthttpPut=newHttpPut(url.toString());
    JSONStringerjson=newJSONStringer()
    .object() 
       .key("your tables column name...").value("...updated value...")
    .endObject();

    StringEntityentity=newStringEntity(json.toString());
    entity.setContentType("application/json;charset=UTF-8");//text/plain;charset=UTF-8
    entity.setContentEncoding(newBasicHeader(HTTP.CONTENT_TYPE,"application/json;charset=UTF-8"));
    httpPut.setEntity(entity); 

    // Send request to WCF service DefaultHttpClienthttpClient=newDefaultHttpClient();

    HttpResponseresponse= httpClient.execute(httpPut);                     
    HttpEntityentity1= response.getEntity(); 

    if(entity1 != null&&(response.getStatusLine().getStatusCode()==201||response.getStatusLine().getStatusCode()==200))
    {
         //--just so that you can view the response, this is optional--intsc= response.getStatusLine().getStatusCode();
         Stringsl= response.getStatusLine().getReasonPhrase();
    }
    else
    {
         intsc= response.getStatusLine().getStatusCode();
         Stringsl= response.getStatusLine().getReasonPhrase();
    }

With this being said there is an easier option by using a library that will generate the update methods for you to allow for you to update a record without having to manually write the code like I did above. The 2 libraries that seem to be common are odata4j and restlet. Although I haven't been able to find a clear easy tutorial for odata4j there is one for restlet that is really nice: http://weblogs.asp.net/uruit/archive/2011/09/13/accessing-odata-from-android-using-restlet.aspx?CommentPosted=true#commentmessage

Solution 2:

Error 500 is Internal Server error. Not sure if this answers your question but I personally encountered it when trying to send a data URI for an animated gif in a PUT request formatted in JSON but the data URI was too long. You may be sending too much information at once.