HttpClient won t import in Android Studio

Question

I have a simple class written in Android Studio   package com mysite myapp   import org apache http client HttpClient   public class Whatever       public void headBangingAgainstTheWallExample              HttpClient client   new DefaultHttpClient              and from this I get the following compile time error   Cannot resolve symbol HttpClient  Isn t HttpClient included in the Android Studio SDK  Even if it is not  I added it to my Gradle build like this   dependencies       compile fileTree dir   libs   include      jar        compile  com android support appcompat-v7 23 0 0      compile  org apache httpcomponents httpclient 4 5      With or without the last compile line  the error is the same  What am I missing

User · Answer

1- download Apache jar files  as of this answer  4 5 zip file from  https   hc apache org downloads cgi Preferred http 3A 2F 2Fapache arvixe com 2F  2- open the zip copy the jar files into your libs folder  You can find it if you go to the top of your project where it says  Android  you ll find a list when u click it  So       Android -  Project -  app -  libs    Then put jars there   3- In build gradle  Module  app  add  compile fileTree dir   libs   include      jar      in   dependency           4- In the java class add these imports   import org apache http HttpResponse   import org apache http client HttpClient   import org apache http client methods HttpGet   import org apache http impl client DefaultHttpClient   import org apache http params CoreProtocolPNames

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You have to add just one line  useLibrary  org apache http legacy    into build gradle Module  app   for example  apply plugin   com android application   android       compileSdkVersion 24     buildToolsVersion  25 0 0       useLibrary  org apache http legacy       defaultConfig           applicationId  com avenues lib testotpappnew          minSdkVersion 15         targetSdkVersion 24         versionCode 1         versionName  1 0          testInstrumentationRunner  android support test runner AndroidJUnitRunner            buildTypes           release               minifyEnabled false             proguardFiles getDefaultProguardFile  proguard-android txt     proguard-rules pro                     dependencies       compile fileTree dir   libs   include      jar        androidTestCompile  com android support test espresso espresso-core 2 2 2             exclude group   com android support   module   support-annotations             compile  com android support appcompat-v7 24 2 1      testCompile  junit junit 4 12

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in API 22 they become deprecated and in API 23 they removed them completely  a simple workaround if you don t need all the fancy stuff from the new additions is to simply use the  jar files from apache that were integrated before API 22  but as separated  jar files   1  http   hc apache org downloads cgi 2  download httpclient 4 5 1  the zile file 3  unzip all files 4  drag in your project httpclient-4 5 1 jar  httpcore-4 4 3 jar and httpmime-4 5 1 jar 5  project  right click  open module settings  app  dependencies     File dependency and add the 3 files 6  now everything should compile properly

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Which API target do you have within your project AndroidHttpClientis only for API Level 8  lt   and please have a look on here  enjoy your code

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For android API 28 and higher in Manifest xml inside application tag       lt application                         lt uses-library android name  org apache http legacy  android required  false   gt

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If you want import some class like    import org apache http NameValuePair  import org apache http client HttpClient   import org apache http client entity UrlEncodedFormEntity  import org apache http client methods HttpPost  import org apache http impl client DefaultHttpClient  import org apache http message BasicNameValuePair  import org apache http params BasicHttpParams  import org apache http params HttpConnectionParams  import org apache http params HttpParams    You can add the following line in the build gradle  Gradle dependencies    dependencies       implementation fileTree dir   libs   include      jar        implementation  com android support appcompat-v7 27 1 0      implementation  com android support support-v4 27 1 0                          implementation  org jbundle util osgi wrapped org jbundle util osgi wrapped org apache http client 4 1 2

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If you need sdk 23  add this to your gradle   android       useLibrary  org apache http legacy

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To use Apache HTTP for SDK Level 23   Top level build gradle -  build gradle  buildscript               dependencies           classpath  com android tools build gradle 1 5 0              Lowest version for useLibrary is 1 3 0            Android Studio will notify you about the latest stable version            See all versions  http   jcenter bintray com com android tools build gradle                    Notification from Android studio about gradle update     Module specific build gradle -  app build gradle  android       compileSdkVersion 23     buildToolsVersion  23 0 2              useLibrary  org apache http legacy

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I think depending on which Android Studio version you have  it s important you update your android studio as well  i was becoming frustrated too following everyone s advice but no luck  until i had to upgrade my android version from 1 3 to 1 5  the errors disappeared like magic

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ApacheHttp Client is removed in v23 sdk  You can use HttpURLConnection  or third party Http Client like OkHttp   ref   https   developer android com preview behavior-changes html behavior-apache-http-client

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Android 6 0  API Level 23  release removes support for the Apache HTTP client  Hence you can not use this library directly in API 23  But there is a way to use it  Add useLibrary    org apache http legacy    in your build gradle file as below-  android       useLibrary  org apache http legacy      If this does not work you may apply the following hack-      Copy org apache http legacy jar which is in  platforms android-23 optional path of your Android SDK directory to your project   s app libs folder       Now Add compile files    libs org apache http legacy jar     inside dependencies   section of build gradle file

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You can simply add this to Gradle dependencies   compile  org apache httpcomponents httpcore 4 3 2

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Another way is if you have httpclient jar file then you can do   this     Paste your  jar file in  libs folder  in your project  Then in gradle add this line in your build gradle Module app   dependencies   compile fileTree include      jar    dir   libs   compile  com android support appcompat-v7 23 0 0  compile files  libs httpcore-4 3 3 jar

User · Answer

HttpClient is not supported in sdk 23 and 23    If you need to use into sdk 23  add below code to your gradle   android       useLibrary  org apache http legacy      Its working for me  Hope useful for you

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HttpClient is not supported any more in sdk 23  You have to use URLConnection or downgrade to sdk 22  compile  com android support appcompat-v7 22 2 0    If you need sdk 23  add this to your gradle   android       useLibrary  org apache http legacy      You also may try to download and include HttpClient jar directly into your project or use OkHttp instead

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TejaDroid s answer in below link helped me    Can  39 t import org apache http HttpResponse in Android Studio  dependencies       compile fileTree include      jar    dir   libs       compile  com android support appcompat-v7 23 0 1       compile  org jbundle util osgi wrapped org jbundle util osgi wrapped org apache http client 4 1 2

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Simply use this  -  android                                     useLibrary  org apache http legacy

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Error  30  0  Gradle DSL method not found   classpath    Possible causes The project  cid  may be using a version of the Android Gradle plug-in that does not contain the method  e g   testCompile  was added in 1 1 0   Upgrade plugin to version 2 3 3 and sync projectThe project  cid  may be using a version of Gradle that does not contain the method  Open Gradle wrapper fileThe build file may be missing a Gradle plugin  Apply Gradle plugin

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Add these two lines under dependencies  compile  org apache httpcomponents httpcore 4 4 1  compile  org apache httpcomponents httpclient 4 5    then   useLibrary  org apache http legacy    under the android

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As mentioned before  org apache http client HttpClient is not supported any more in   SDK  API level   23    You have to use java net HttpURLConnection   If you want to make your code  and life  easier when using HttpURLConnection  here is a Wrapper of this class that will let you do simple operations with GET  POST and PUT using JSON  like for example  doing a HTTP PUT   HttpRequest request   new HttpRequest API URL   PATH  addHeader  Content-Type    application json    int httpCode   request put new JSONObject   toString     if  HttpURLConnection HTTP OK    httpCode        response   request getJSONObjectResponse      else        log error   httpRequest close     Feel free to use it   package com calculistik repository   import java io BufferedReader  import java io BufferedWriter  import java io ByteArrayOutputStream  import java io IOException  import java io InputStream  import java io InputStreamReader  import java io OutputStream  import java io OutputStreamWriter  import java net HttpURLConnection  import java net URL  import java util HashMap  import java util Map   import org json JSONArray  import org json JSONException  import org json JSONObject          DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER      lt p gt     Copyright    2017  Calculistik   All rights reserved      lt p gt     Oracle and Java are registered trademarks of Oracle and or its    affiliates  Other names may be trademarks of their respective owners      lt p gt     The contents of this file are subject to the terms of either the GNU    General Public License Version 2 only   GPL   or the Common    Development and Distribution License  CDDL    collectively  the     License    You may not use this file except in compliance with the    License  You can obtain a copy of the License at    https   netbeans org cddl-gplv2 html or    nbbuild licenses CDDL-GPL-2-CP  See the License for the specific    language governing permissions and limitations under the License     When distributing the software  include this License Header    Notice in each file and include the License file at    nbbuild licenses CDDL-GPL-2-CP  Oracle designates this particular file    as subject to the  Classpath  exception as provided by Oracle in the    GPL Version 2 section of the License file that accompanied this code  If    applicable  add the following below the License Header  with the fields    enclosed by brackets    replaced by your own identifying information      Portions Copyrighted  year   name of copyright owner       lt p gt     Contributor s      Created by alejandro tkachuk  aletkachuk    www calculistik com     public class HttpRequest        public static enum Method           POST  PUT  DELETE  GET             private URL url      private HttpURLConnection connection      private OutputStream outputStream      private HashMap lt String  String gt  params   new HashMap lt String  String gt          public HttpRequest String url  throws IOException           this url   new URL url           connection    HttpURLConnection  this url openConnection               public int get   throws IOException           return this send               public int post String data  throws IOException           connection setDoInput true           connection setRequestMethod Method POST toString             connection setDoOutput true           outputStream   connection getOutputStream            this sendData data           return this send               public int post   throws IOException           connection setDoInput true           connection setRequestMethod Method POST toString             connection setDoOutput true           outputStream   connection getOutputStream            return this send               public int put String data  throws IOException           connection setDoInput true           connection setRequestMethod Method PUT toString             connection setDoOutput true           outputStream   connection getOutputStream            this sendData data           return this send               public int put   throws IOException           connection setDoInput true           connection setRequestMethod Method PUT toString             connection setDoOutput true           outputStream   connection getOutputStream            return this send               public HttpRequest addHeader String key  String value            connection setRequestProperty key  value           return this             public HttpRequest addParameter String key  String value            this params put key  value           return this             public JSONObject getJSONObjectResponse   throws JSONException  IOException           return new JSONObject getStringResponse                public JSONArray getJSONArrayResponse   throws JSONException  IOException           return new JSONArray getStringResponse                public String getStringResponse   throws IOException           BufferedReader br   new BufferedReader new InputStreamReader connection getInputStream              StringBuilder response   new StringBuilder            for  String line   line   br readLine       null    response append line     n            return response toString               public byte   getBytesResponse   throws IOException           byte   buffer   new byte 8192           InputStream is   connection getInputStream            ByteArrayOutputStream output   new ByteArrayOutputStream            for  int bytesRead   bytesRead   is read buffer    gt   0                output write buffer  0  bytesRead           return output toByteArray               public void close             if  null    connection              connection disconnect               private int send   throws IOException           int httpStatusCode   HttpURLConnection HTTP BAD REQUEST           if   this params isEmpty                  this sendData                      httpStatusCode   connection getResponseCode             return httpStatusCode             private void sendData   throws IOException           StringBuilder result   new StringBuilder            for  Map Entry lt String  String gt  entry   params entrySet                  result append  result length    gt  0     amp           entry getKey           entry getValue      appends  key value  for first param  OR  amp key value second and more                    sendData result toString                private HttpRequest sendData String query  throws IOException           BufferedWriter writer   new BufferedWriter new OutputStreamWriter outputStream   UTF-8             writer write query           writer close            return this

User · Answer

HttpClient is not supported any more in sdk 23  Android 6 0  API Level 23  release removes support for the Apache HTTP client  You have to use   android       useLibrary  org apache http legacy                      and also add below code snippet in your dependency       http final solution for web-service  including file uploading   compile  org apache httpcomponents httpmime 4 3 6             exclude module   httpclient     compile  org apache httpcomponents httpclient-android 4 3 5    It will also help you while you use Use MultipartEntity for File upload

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Try this worked for me Add this dependency to your build gradle File  compile  org jbundle util osgi wrapped org jbundle util osgi wrapped org apache http client 4 1 2

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HttpClient was deprecated in API Level 22 and removed in API Level 23  You can still use it in API Level 23 and onwards if you must  however it is best to move to supported methods to handle HTTP  So  if you re compiling with 23  add this in your build gradle   android       useLibrary  org apache http legacy

[android] HttpClient won't import in Android Studio

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