Calling Soap webservice from android - java

I am using the below process,
1)Create a String template for a SOAP request and substitute user-supplied values at runtime in this template to create a valid request.
2) Wrap this string in a StringEntity and set its content type as text/xml
3) Set this entity in the SOAP request.
and with the help of httppost I am posting the request,
I am using a demo webservice from w3schools.com
url--->
http://www.w3schools.com/webservices/tempconvert.asmx
What I have tried is,
HttpPost httppost = new HttpPost("http://www.w3schools.com/webservices/tempconvert.asmx");
StringEntity se;
try {
SOAPRequestXML="<soapenv:Envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:tem=\"http://tempuri.org/\"><soapenv:Header/><soapenv:Body><tem:CelsiusToFahrenheit><!--Optional:--><tem:Celsius>30</tem:Celsius></tem:CelsiusToFahrenheit></soapenv:Body></soapenv:Envelope>";
Log.d("request is ", SOAPRequestXML+"!!!");
se = new StringEntity(SOAPRequestXML,HTTP.UTF_8);
se.setContentType("text/xml");
httppost.setHeader("Content-Type","application/soap+xml;charset=UTF-8");
httppost.setEntity(se);
HttpClient httpclient = new DefaultHttpClient();
BasicHttpResponse httpResponse =
(BasicHttpResponse) httpclient.execute(httppost);
HttpEntity resEntity = httpResponse.getEntity();
t.setText(EntityUtils.toString(resEntity));
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
I am able to get the response in soapui, so surely the code is wrong because in emulator I am getting the output,
"the server cannot service the request because the media type is unsupported".
Am I passing the correct parameter in the constructor of HttpPost or am I making the correct xml request.I tried a lot but could not figure it out.
Thanks

The only problem with your code is you are setting Header as,
httppost.setHeader("Content-Type","application/soap+xml;charset=UTF-8");
instead of,
httppost.setHeader("Content-Type", "text/xml;charset=UTF-8");
As you can see the request in the URL that is -> w3schoools, they are using,
Content-Type: text/xml; charset=utf-8
and you where not passing the same content type. So, it was giving you error as,
The server cannot service the request because the media type is unsupported.
So, just change the Header and you will get the desired response.

I have written an article on How to Call Web Service in Android Using SOAP at c-sharpcorner.com.
So many person get helped from that article. You can also download it and run. I will help you to understand how to use SOAP for web service.
Edit
Take a look at following links. It has complex data handling with ksoap.
Complex objects tutorial with sample code
http://bimbim.in/post/2010/10/08/Android-Calling-Web-Service-with-complex-types.aspx
http://seesharpgears.blogspot.in/2010/10/web-service-that-returns-array-of.html

I have a hunch that the emulator android version and the phone version are different.
But I have few suggestions. Use following:
httppost.setHeader("Accept-Charset","utf-8");
httppost.setHeader("Accept","text/xml,application/text+xml,application/soap+xml");
similarly, set content type as all of the above.

Have you tried using the ksoap2 library for Android ?
you can find it here, give it a shot :
https://code.google.com/p/ksoap2-android/
Hope this helps !

This way the html form is posting 123 celsius. No SOAP or envelops, just working:)
try {
HttpPost httppost = new HttpPost("http://www.w3schools.com/webservices/tempconvert.asmx/CelsiusToFahrenheit");
StringEntity se = new StringEntity("Celsius=123");
httppost.setEntity(se);
httppost.setHeader("Content-Type", "application/x-www-form-urlencoded");
HttpResponse httpResponse = new DefaultHttpClient().execute(httppost);
HttpEntity resEntity = httpResponse.getEntity();
return EntityUtils.toString(resEntity);
} catch (Exception e) {
e.printStackTrace();
return e.getMessage();
}

Related

Post with HttpClient returns Bad Request

I am using Java, Spring boot and Apache HttpClient to try send a post request. The documentation of the resource I am trying to reach can be found here:
https://docs.enotasgw.com.br/v2/reference#incluiralterar-empresa
Below is my code:
CloseableHttpClient httpClient = HttpClients.createDefault();
HttpPost post = new HttpPost(incluirEmpresa);
post.setHeader("Content-Type", "application/json");
post.setHeader("Accept", "application/json");
post.setHeader("Authorization", "Basic " + apiKey);
try {
StringEntity entity = new StringEntity(json);
//tried to add these two lines to see if they would fix the error, but it is the same
entity.setContentEncoding("application/json");
entity.setContentType("application/json");
post.setEntity(entity);
System.out.println(json);
System.out.println("======================");
CloseableHttpResponse response = httpClient.execute(post);
System.out.println(response.getStatusLine().getReasonPhrase() + " - " + response.getStatusLine().getReasonPhrase());
idEmpresa = response.getEntity().getContent().toString();
}
My response is 400 - Bad Request. On the interactive documentation link above, when I post my Json, I receive the error of duplicate entry, which is what I expect since the information I am sending is already on the database.
Since the interactive documentation returns the error of duplicate, I know the problem is not within my json format, but on my post request. The documentation have samples on C#, but not on Java, which is what I am using.
By the way, the json is variable is a string in case this is relevant.
Could someone try to point to me what is wrong with my post code?
Found out what I was missing.
After reviewing what was being sent to the API, i noticed the json was not in the expected format. So I did some research and found that, at least for my case, setting the headers with the content type was not enough, I also had to set the Entity that was being set to the HttpPost, to do that, i had to change this line of the code:
StringEntity entity = new StringEntity(json);
to this:
StringEntity entity = new StringEntity(json, ContentType.APPLICATION_JSON);
After that change, the requests started to work as expected.

Firebase Dynamic Link Rest API - 400 Bad Request

I am transitioning an existing service from using google url shortener api to try and use Firebase Dynamic Links. I have linked a project from the Google Cloud Platform, and setup a "dummy" android app so that I can have the app domain for the dynamic links. I am trying to use the REST API to shorten urls for very long urls that can't be handled by a third party. I have tried sending using:
ObjectMapper mapper = new ObjectMapper();
HttpPost httpPost = new HttpPost("https://firebasedynamiclinks.googleapis.com/v1/shortLinks?key=****");
FirebaseDynamicLinkInfo dynamicLinkRequest = new FirebaseDynamicLinkInfo();
dynamicLinkRequest.setDynamicLinkDomain("zw5yb.app.goo.gl");
dynamicLinkRequest.setLink(assetUrl);
httpPost.setEntity(new StringEntity(mapper.writeValueAsString(dynamicLinkRequest)));
httpPost.setHeader("Accept", "application/json");
httpPost.setHeader("Content-type", "application/json");
responseBody = httpClient.execute(httpPost, responseHandler);
I am getting a 400 Bad Request when I post the request to the API (on the httpCLient.execute line. I have double checked my api-key. I have also tried using just the longDynamicLink parameter, and it gets the 400 Bad Request Response.
Any ideas of where I could be going wrong?
Thanks,
Ben
I contacted Google Support on this one, and I wasn't UrlEncoding my querystring parameters on the deep link. After encoding the link, the request was successful. I went back to using passing json that just had a longDynamicLink property (as opposed to the dynamicLinkInfo object in my original post). Here is what it looks like:
String myEscapedUrl = "https://zw5yb.app.goo.gl/?link=" + URLEncoder.encode(assetUrl, "UTF-8");
FirebaseDynamicLinkRequest dynamicLinkRequest = new FirebaseDynamicLinkRequest(myEscapedUrl);
httpPost.setEntity(new StringEntity(mapper.writeValueAsString(dynamicLinkRequest)));
// inform the server about the type of the content
httpPost.setHeader("Accept", "application/json");
httpPost.setHeader("Content-type", "application/json");
responseBody = httpClient.execute(httpPost, responseHandler);

Does anyone have an updated example on posting a JSON request?

I am having a mess of a time finding up to date information on sending a JSON request to a local server. I keep coming across examples that use deprecated code, and I'd really like to do this with code that isn't.
I can at least say that I now have a working example, and I am not receiving any deprecated messages from NetBeans, but I would like to know if what I've put together is the right way:
public void sendUpdateRequest() {
String updateString =
"{\"jsonrpc\": \"2.0\", \"method\": \"VideoLibrary.Scan\"}" ;
StringEntity entity = new StringEntity(updateString, Consts.UTF_8);
HttpPost httpPost = new HttpPost(getURL()); // http://xbmc:xbmc#10.0.0.151:8080/jsonrpc
entity.setContentType("application/json");
httpPost.setEntity(entity);
try (CloseableHttpClient client = HttpClientBuilder.create().build()) {
HttpResponse response = client.execute(httpPost);
System.out.println(response.getStatusLine()); // move to log
}
catch (IOException e) {
e.printStackTrace(); // move to log
}
}
This is something I'm working on to update XBMC with a JSON HTTP request
Edit
Changed the code to try with resources per the comment -- hopefully this will be useful for someone else dealing with JSON and Java
but I would like to know if what I've put together is the right way:
Yes, you are doing it correctly given the details you've posted.
The StringEntity contains the body of the request. You can set any appropriate headers there. Any other headers can be set directly on the HttpPost object.
As stated in the comments, don't take any chances, close() the CloseableHttpClient in a finally block.

Large data is not sending in android through webservice

I am using the following code in android to send data to a server through a web service
call.When i am sending small amount of data it is hitting the server.When i am sending large data it is not hitting the server.Simply it is httpClient.execute(httpPost); .But i am not getting any result.What might be the problem
HttpPost httpPost = new HttpPost(url+data);
httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded");
if (rsopnse != null)
System.out.println(httpPost.getMethod());
try
{
httpResponse= httpClient.execute(httpPost);
}catch(Exception e)
{
e.printStackTrace();
}
Thanks in advance...
You need to create a List<NameValuePair> for all the parameters that you want to pass in the Request. You should not append your parameters to the URL, which is more of the GET style of making a call.
The examples for HTTP Post are covered in the post here.

Using Robolectric, how to test JSON values sent along POST *request*

In my app I'm going to be sending JSON in a POST request to the server.
I want to test to make sure I'm sending the right values.
Since I'm using Robolectric, my conclusion is that I should get the request that is being sent to the FakeHttpLayer, pull out the JSON, and test that it matches my expectations.
Sounds simple, but I'm having a hell of a time figuring out how to see what JSON I've POSTed.
My code vaguely looks like this:
HttpClient client = new DefaultHttpClient();
HttpResponse response;
JSONObject json = new JSONObject();
try{
HttpPost post = new HttpPost("http://google.com");
json.put("blah", "blah");
StringEntity se = new StringEntity( "JSON: " + json.toString());
se.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE, "application/json"));
post.setEntity(se);
response = client.execute(post);
} catch(Exception e){
e.printStackTrace();
}
I want to have something which is like
assertTrue(myRequestJSON.matches("blah"));
But I can't seem to get that using anything inside of
Robolectric.getFakeHttpLayer().getLastSentHttpRequestInfo();
...or any of the other variations on that.
Help?
By the way, I'm certainly open to thinking about this in a different way, if you think my testing approach is misguided.
Thank you!
EDIT: I realized I had "myResponseJSON" in my dummy code rather than "myRequestJSON," which may have made it unclear--fixed.
I was completely wrong in my previous solution. You can do this rather simply it would appear. I found the solution (predictably) in the Robolectric example code:
HttpPost sentHttpRequest = (HttpPost) Robolectric.getSentHttpRequest(0);
StringEntity entity = (StringEntity) sentHttpRequest.getEntity();
String sentPostBody = fromStream(entity.getContent());
assertThat(sentPostBody, equalTo("a post body"));
assertThat(entity.getContentType().getValue(), equalTo("text/plain; charset=UTF-8"));
(from here)

Categories

Resources