How to add parameters to a HTTP GET request in Android

Question

I have a HTTP GET request that I am attempting to send  I tried adding the parameters to this request by first creating a BasicHttpParams object and adding the parameters to that object  then calling setParams  basicHttpParms   on my HttpGet object  This method fails  But if I manually add my parameters to my URL  i e  append  param1 value1 amp param2 value2  it succeeds   I know I m missing something here and any help would be greatly appreciated

User · Answer

List lt NameValuePair gt  params   new ArrayList lt NameValuePair gt     params add new BasicNameValuePair  param1   value1     String query   URLEncodedUtils format params   utf-8     URI url   URIUtils createURI scheme  userInfo  authority  port  path  query  fragment     can be null HttpGet httpGet   new HttpGet url     URI javadoc  Note  url   new URI      is buggy

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If you have constant URL I recommend use simplified http-request built on apache http   You can build your client as following   private filan static HttpRequest lt YourResponseType gt  httpRequest                       HttpRequestBuilder createGet yourUri YourResponseType                      build     public void send        ResponseHendler lt YourResponseType gt  rh             httpRequest execute param1  value1  param2  value2        handler ifSuccess this  whenSuccess  otherwise this  whenNotSuccess      public void whenSuccess ResponseHendler lt YourResponseType gt  rh        rh ifHasContent content - gt     your code      public void whenSuccess ResponseHendler lt YourResponseType gt  rh      LOGGER error  Status code      rh getStatusCode        Error msg      rh getErrorText         Note  There are many useful methods to manipulate your response

User · Answer

HttpClient client   new DefaultHttpClient         Uri Builder builder   Uri parse url  buildUpon         for  String name   params keySet              builder appendQueryParameter name  params get name  toString                url   builder build   toString        HttpGet request   new HttpGet url       HttpResponse response   client execute request       return EntityUtils toString response getEntity     UTF-8

User · Answer

I use a List of NameValuePair and URLEncodedUtils to create the url string I want   protected String addLocationToUrl String url       if  url endsWith               url              List lt NameValuePair gt  params   new LinkedList lt NameValuePair gt          if  lat    0 0  amp  amp  lon    0 0           params add new BasicNameValuePair  lat   String valueOf lat             params add new BasicNameValuePair  lon   String valueOf lon                if  address    null  amp  amp  address getPostalCode      null          params add new BasicNameValuePair  postalCode   address getPostalCode          if  address    null  amp  amp  address getCountryCode      null          params add new BasicNameValuePair  country  address getCountryCode           params add new BasicNameValuePair  user   agent uniqueId         String paramString   URLEncodedUtils format params   utf-8         url    paramString      return url

User · Answer

To build uri with get parameters  Uri Builder provides a more effective way   Uri uri   new Uri Builder        scheme  http        authority  foo com        path  someservlet        appendQueryParameter  param1   foo       appendQueryParameter  param2   bar       build

User · Answer

As of HttpComponents 4 2  there is a new class URIBuilder  which provides convenient way for generating URIs   You can use either create URI directly from String URL   List lt NameValuePair gt  listOfParameters         URI uri   new URIBuilder  http   example com 8080 path to resource mandatoryParam someValue        addParameter  firstParam   firstVal       addParameter  secondParam   secondVal       addParameters listOfParameters       build      Otherwise  you can specify all parameters explicitly   URI uri   new URIBuilder        setScheme  http        setHost  example com        setPort 8080       setPath   path to resource        addParameter  mandatoryParam    someValue        addParameter  firstParam   firstVal       addParameter  secondParam   secondVal       addParameters listOfParameters       build      Once you have created URI object  then you just simply need to create HttpGet object and perform it     create GET request HttpGet httpGet   new HttpGet uri     perform request httpClient execute httpGet      additional parameters  handle response etc

User · Answer

The method  setParams      like  httpget getParams   setParameter  http socket timeout   new Integer 5000      only adds HttpProtocol parameters   To execute the httpGet you should append your parameters to the url manually  HttpGet myGet   new HttpGet  http   foo com someservlet param1 foo amp param2 bar      or use the post request the difference between get and post requests are explained here  if you are interested

[java] How to add parameters to a HTTP GET request in Android?

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