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Unable to send request parameter using Spring RestTemplate client to HttpServeletRequest doPost

I am using Spring RestTemplate client to do a POST call to another application which handles this request as HTTpServletRequest.
Problem is HTTpServletRequest is expecting a key value pair e.g.
String xmlString = request.getParameter("xml12")
//xmlString should be "`<parent><child></child></parent>`" but coming as null.
Here is the code snippet of both ends -
My app -
String data = "`<parent><child></child></parent>`"
HttpHeaders header = new HttpHeaders()
header.setContentType(MediaType.APPLICATION_XML)
Map<String,String> bodyParamMap = new HashMap<String,String>();
bodyParamMap.put("xml123",data)
String reqBodyData = new ObjectMapper().writeValuesAsString(bodyParamMap)
HttpEntity<String> entity = new HttpEntity<String>(reqBodyData,header)
RestTemplate rt = new RestTemplate()
String response = rt.postForObject("url",entity,String.class)
//Getting response as 500
Other app -
HttpServletRequest request = new HttpServletRequest()
String xmlString = request.getParameter("xml123")
// xmlString is null
I just want to know my mistake and how to pass my data string to post request so that request.getParameter("xml123") receives my data xml as String.

How to consume a HTTPS GET service with Spring Boot

I am trying to consume the following HTTPS endpoints from Yahoo Weather Service:
Yahoo Weather Service API
I am doing some special query according to the API to get the current weather at some parametrized location.
#Service("weatherConditionService")
public class WeatherConditionServiceImpl implements WeatherConditionService {
private static final String URL = "http://query.yahooapis.com/v1/public/yql";
public WeatherCondition getCurrentWeatherConditionsFor(Location location) {
RestTemplate restTemplate = new RestTemplate();
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.append(URL);
stringBuilder.append("?q=select%20item.condition%20from%20weather.forecast%20where%20woeid%20in%20(select%20woeid%20from%20geo.places(1)%20where%20text%3D%22");
// TODO: Validate YQL query injection
stringBuilder.append(location.getName());
stringBuilder.append("%22)&format=json&env=store%3A%2F%2Fdatatables.org%2Falltableswithkeys");
WeatherQuery weatherQuery = restTemplate.getForObject(stringBuilder.toString(), WeatherQuery.class);
// TODO: Test Json mapping response
Condition condition = weatherQuery.getQuery().getResults().getChannel().getItem().getCondition();
return new WeatherCondition(condition.getDate(), Integer.parseInt(condition.getTemp()), condition.getText());
}
Location is a class that provides the attribute "name" that is a String description of the location, such as "New York" or "Manila".
Condition an other classes just map the returning object.
When executing I get the following HTTP response:
org.springframework.web.client.HttpClientErrorException: 403 Forbidden
So this means I am not authorized to access the resource from what I understand.
The URL works great if I just copy & paste it in a web browser:
Yahoo Weather Query
I think that mapping is not a problem since I am not getting "400" (Bad Request) but "403" (Forbidden)
There must be some error on the way I use the RestTemplate object. I am researching but I can't find an answer.

The docs say you need an api key. But when I make a call like this:
fetch('https://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20weather.forecast%20where%20woeid%20in%20(select%20woeid%20from%20geo.places(1)%20where%20text%3D%22nome%2C%20ak%22)&format=json&env=store%3A%2F%2Fdatatables.org%2Falltableswithkeys')
.then(resp=> resp.json())
.then((res)=>console.log(res.query.results))
https://repl.it/NeoM
It works fine without one. Perhaps you've been blackisted for hitting the api too often.
Your code seems fine.

I finally found the answer. It finally WAS a Bad Request because I needed to pass the parameters differently (not as part of the URL).
I found the answer here. Here goes the code for my particular Yahoo Weather API call return a String (I still will have to do some work to use the mapping).
private static final String URL = "http://query.yahooapis.com/v1/public/yql";
public String callYahooWeatherApi() {
RestTemplate restTemplate = new RestTemplate();
HttpHeaders headers = new HttpHeaders();
headers.set("Accept", MediaType.APPLICATION_JSON_VALUE);
UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(URL)
.queryParam("q", "select wind from weather.forecast where woeid=2460286")
.queryParam("format", "json");
HttpEntity<?> entity = new HttpEntity<>(headers);
HttpEntity<String> response = restTemplate.exchange(
builder.build().encode().toUri(),
HttpMethod.GET,
entity,
String.class);
return response.getBody();
}

spring android resttemplate encoding url

I use Spring android RestTemplate to execute GET request to Youtube API like this:
// build rest template
RestTemplate restTemplate = new RestTemplate();
GsonHttpMessageConverter jsonConverter = new GsonHttpMessageConverter();
FormHttpMessageConverter formHttpMessageConverter = new FormHttpMessageConverter();
StringHttpMessageConverter stringHttpMessageConverter = new StringHttpMessageConverter();
final List<HttpMessageConverter<?>> listHttpMessageConverters = restTemplate.getMessageConverters();
listHttpMessageConverters.add(jsonConverter);
listHttpMessageConverters.add(formHttpMessageConverter);
listHttpMessageConverters.add(stringHttpMessageConverter);
restTemplate.setMessageConverters(listHttpMessageConverters);
Uri.Builder uriBuilder = Uri.parse(https://www.googleapis.com/youtube/v3/channels).buildUpon();
uriBuilder.appendQueryParameter("key", API_KEY);
uriBuilder.appendQueryParameter("part", "id,snippet");
uriBuilder.appendQueryParameter("forUsername", channelName);
String url = uriBuilder.build().toString(); // this is right url
// like this: https://www.googleapis.com/youtube/v3/channels?key=MY_KEY&part=id%2Csnippet&forUsername=cnn
MyEntity result = restTemplate.getForObject(url, MyEntity.class);
From debug, I can see RestTemplate execute wrong url and I got 400 bad request error:
03-16 12:06:47.651: W/RestTemplate(24970): GET request for
"https://www.googleapis.com/youtube/v3/channels?key=MY_KEY&part=id%252Csnippet&forUsername=cnn"
resulted in 400 (Bad Request); invoking error handler
I have no idea why RestTemplate try to encode parameter url again, from id%2Csnippet to id%252Csnippet
Is there any way to correct it?

It just so happens that the RestTemplate#getForObject(..) method that expects a String builds a URI from the given String and encodes it before using it. It uses custom Spring classes to do this. (See the source code.)
You can fix this issue by creating a URI object from your String and pass that to the method.
String url = uriBuilder.build().toString(); // this is right url
URI uri = new URI(url);
MyEntity result = restTemplate.getForObject(uri, MyEntity.class);

Trying to use bing translator API with Robospice in Android

I need to implement robospice for doing the networking part in my Translator app. I previously used async task class and it was working fine, but now i want to improve my application with implementing robospice. I'am trying to execute the following code but it doesn't't throw any exception it just never executes....
#Override
public TranslatedText loadDataFromNetwork() throws Exception {
String jsonString = getJsonString();
String headerValue = getHeaderValue(jsonString);
String text = pair.getWordPairs().getWordFrom();
String languageFrom = pair.getLanguagePairs().getLanguageFrom().getCode();
String languageTo = pair.getLanguagePairs().getLangougateTo().getCode();
String uri = String
.format("http://api.microsofttranslator.com/v2/Http.svc/Translate?text=%s&from=%s&to=%s&contentType=text/html",
URLEncoder.encode(text, "UTF-8"),
URLEncoder.encode(languageFrom, "UTF-8"),
URLEncoder.encode(languageTo, "UTF-8"));
HttpHeaders headers = new HttpHeaders();
headers.set("Authorization", headerValue);
// Create a new RestTemplate instance
RestTemplate restTemplate = new RestTemplate();
// Add the Simple XML message converter
getRestTemplate().getMessageConverters().add(new SimpleXmlHttpMessageConverter());
//set the headerValue in the Entity
org.springframework.http.HttpEntity<?> request = new org.springframework.http.HttpEntity<Object>(headerValue);
// Make the HTTP GET request, marshaling the response from XML to an
// EventList
Log.v("request","Making request!");
//This line never finish execuitng, doesen't throw exception or anything in logCat
ResponseEntity<Object> responseEntity = getRestTemplate().exchange(uri, HttpMethod.GET, request, null);
Log.v("request", responseEntity.getBody().toString());
Log.d("Load Data From Network", request.getBody().toString());
return null;
}
The last thing it shows in log cat is Request First!! And nothing after that. It never even gets to The Request Listener onRequestFailure.
Can any 1 tell me what i do wrong ?

This is what look weird to me in your code:
ResponseEntity<Object> and null as 4th parameter of the exchange method are not correct. You need to provide a type which represents the response you get from the server.
The object returned by loadDataFromNetwork() is what you will get in the onRequestSuccess() method. Returning null is not a good idea, in my opinion.

I fixed the problem. So if you need to handle stream you will have to provide the following code
ResponseEntity<byte[]> responseEntity = getRestTemplate().exchange(uri, HttpMethod.GET, request, byte[]);

Strange problems with the Spring RestTemplate in Android application

I began to use RESTful api of the Spring Framework in my android client application. But I have encountered with problems when I tried to execute HTTP request via postForObject/postForEntity methods. Here is my code:
public String _URL = "https://someservice/mobile/login";
public void BeginAuthorization(View view)
{
HttpHeaders requestHeaders = new HttpHeaders();
requestHeaders.setContentType(MediaType.APPLICATION_JSON);
HttpEntity<String> _entity = new HttpEntity<String>(requestHeaders);
RestTemplate templ = new RestTemplate();
templ.setRequestFactory(new HttpComponentsClientHttpRequestFactory());
templ.getMessageConverters().add(new MappingJacksonHttpMessageConverter());
ResponseEntity<String> _response = templ.postForEntity(_URL,_entity,String.class); //HERE APP CRASHES
String _body = _response.getBody();
So the question what am I doing wrong? How to fix this? May there is other way to do it?I really need a help. Thanks in advance!

I think you are targeting your app Android 4.0-4.2. Then you must perform all your operations in the background, not main (UI) thread. You are performing an authorization process, as I see. It's a short operation, so it's better for you to use AsyncTask for this. Here is howto for this on androidDevelopers:
http://developer.android.com/reference/android/os/AsyncTask.html
You should override doInBackground(Params...) in such a way:
class LoginTask extends AsyncTask<String,Void,Void>
{
#Override
protected Void doInBackground(String... params) {
HttpHeaders requestHeaders = new HttpHeaders();
requestHeaders.setContentType(MediaType.APPLICATION_JSON);
HttpEntity<String> _entity = new HttpEntity<String>(requestHeaders);
RestTemplate templ = new RestTemplate();
templ.setRequestFactory(new HttpComponentsClientHttpRequestFactory());
templ.getMessageConverters().add(new MappingJacksonHttpMessageConverter());
ResponseEntity<String> _response = templ.postForEntity(params[0],_entity,null) //null here in order there wasn't http converter errors because response type String and [text/html] for JSON are not compatible;
String _body = _response.getBody();
return null;
}
}
And then call it in your BeginAuthorization(View view):
new LoginTask().execute(URL);
P.S. Also if you write Java please use correct naming conventions. Instead of this _response please write response.

From the documentation:
NetworkOnMainThreadException
The exception that is thrown when an application attempts to perform a
networking operation on its main thread.
You should make a thread and do the networking from there. This may be what you are looking for.

from android>= 4.0 network calls must go through asynctack