blocks|key|4473923|text|SDK23不再支持HttpClient。您必须使用URLConnection或降级至SDK22+(compile+'com.android.support:appcompat-v7:22.2.0')|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4473924|如果你需要sdk+23，把这个添加到你的gradle中：|4473925|android+{
++++useLibrary+'org.apache.http.legacy'
}|code-block|syntax|javascript|4473926|您也可以尝试下载HttpClient+jar并将其直接包含到项目中，或者改用OkHttp|4473927|entityMap|0|LINK|mutability|MUTABLE|url|http://hc.apache.org/downloads.cgi|1|http://square.github.io/okhttp/^0|9|A|P|D|1D|1D|0|0|0|8|E|0|12|6|1|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]|$9|11|A|12|B|C]|$9|13|A|14|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|15|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|16|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|17|8|@]|D|@$9|18|A|19|1|1A]|$9|1B|A|1C|1|1D]]|E|$]]|$1|O|3|-4|5|6|7|1E|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|V]]|W|$5|R|S|T|E|$U|X]]]]

<code>HttpClient</code> is not supported any more in sdk 23. You have to use <code>URLConnection</code> or downgrade to sdk 22 (<code>compile 'com.android.support:appcompat-v7:22.2.0'</code>)

If you need sdk 23, add this to your gradle:

<pre><code>android {
 useLibrary 'org.apache.http.legacy'
}
</code></pre>

You also may try to download and include <a href="http://hc.apache.org/downloads.cgi" rel="noreferrer">HttpClient jar</a> directly into your project or use <a href="http://square.github.io/okhttp/" rel="noreferrer">OkHttp</a> instead

blocks|key|4474106|text|HttpClient在API级别22中已弃用，并在API级别23中被删除。如果有必要，您仍然可以在API级别23和更高版本中使用它，但是最好转移到受支持的方法来处理HTTP。所以，如果你使用23编译，在你的build.gradle中添加如下代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4474107|android+{
++++useLibrary+'org.apache.http.legacy'
}|code-block|syntax|javascript|4474108|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

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:

<pre><code>android {
 useLibrary 'org.apache.http.legacy'
}
</code></pre>

blocks|key|4474869|text|TejaDroid在下面链接中的答案对我很有帮助。Can't+import+org.apache.http.HttpResponse+in+Android+Studio|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4474870|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'
++++...
}|code-block|syntax|javascript|4474871|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/32340629/cant-import-org-apache-http-httpresponse-in-android-studio^0|P|1N|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

TejaDroid's answer in below link helped me . <a href="https://stackoverflow.com/questions/32340629/cant-import-org-apache-http-httpresponse-in-android-studio">Can&#39;t import org.apache.http.HttpResponse in Android Studio</a>

<pre><code>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'
 ...
}
</code></pre>

blocks|key|4474952|text|尝试为我工作将此依赖添加到您的build.gradle文件|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4474953|compile+'org.jbundle.util.osgi.wrapped:org.jbundle.util.osgi.wrapped.org.apache.http.client:4.1.2'|code-block|syntax|javascript|4474954|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Try this
worked for me
Add this dependency to your build.gradle File

<pre><code>compile 'org.jbundle.util.osgi.wrapped:org.jbundle.util.osgi.wrapped.org.apache.http.client:4.1.2'
</code></pre>

blocks|key|4474133|text|在API22中它们被废弃了，在API23中他们完全删除了它们，如果你不需要新添加的所有花哨的东西，一个简单的解决办法是简单地使用API22之前集成的.jar文件，但作为单独的.jar文件：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4474134|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,+%2B,+File+dependency+and+add+the+3+files
6.+now+everything+should+compile+properly|code-block|syntax|javascript|4474135|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

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:

<pre><code>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
</code></pre>

blocks|key|4475275|text|如果您想导入一些类，如：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4475276|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;|code-block|syntax|javascript|4475277|您可以在build.gradle+(Gradle依赖项)中添加以下行|4475278|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'

}|4475279|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

If you want import some class like :

<pre><code>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;
</code></pre>

You can add the following line in the build.gradle (Gradle dependencies) 

<pre><code>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'

}
</code></pre>

blocks|key|4474183|text|您可以简单地将其添加到Gradle依赖项中：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4474184|compile+"org.apache.httpcomponents:httpcore:4.3.2"|code-block|syntax|javascript|4474185|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can simply add this to Gradle dependencies:

<pre><code>compile "org.apache.httpcomponents:httpcore:4.3.2"
</code></pre>

blocks|key|4474344|text|Android+6.0+(API+Level+23)版本删除了对Apache+HTTP客户端的支持。因此，您不能在API+23中直接使用该库。但是有一种方法可以使用它。在您的build.gradle文件中添加useLibrary‘org.apache.http.legacy’，如下所示-|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4474345|android+{
++++useLibrary+'org.apache.http.legacy'
}|code-block|syntax|javascript|4474346|如果这不起作用，你可以应用以下技巧-|4474347|-将Android+SDK目录的/platforms/Android-23/可选路径中的org.apache.http.legacy.jar拷贝到项目的app/libs文件夹中。|4474348|-现在在build.gradle文件的依赖{}部分中添加编译文件(‘libs/org.apache.http.legacy.jar’)。|4474349|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

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-

<pre><code>android {
 useLibrary 'org.apache.http.legacy'
}
</code></pre>

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.

blocks|key|4474594|text|在v23+sdk中删除了ApacheHttp客户端。您可以使用HttpURLConnection或像OkHttp这样的第三方Http客户端。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4474595|参考：https://developer.android.com/preview/behavior-changes.html#behavior-apache-http-client|offset|length|style|CODE|4474596|entityMap^0|0|3|2F|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

ApacheHttp Client is removed in v23 sdk. You can use HttpURLConnection or third party Http Client like OkHttp.

ref : <code>https://developer.android.com/preview/behavior-changes.html#behavior-apache-http-client</code>

blocks|key|4474483|text|您只需添加一行|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4474484|useLibrary+'org.apache.http.legacy'|code-block|syntax|javascript|4474485|转换为build.gradle(模块:应用程序)，例如|4474486|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'
}|4474487|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

You have to add just one line

<pre><code>useLibrary 'org.apache.http.legacy'
</code></pre>

into build.gradle(Module: app), for example

<pre><code>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'
}
</code></pre>

blocks|key|4474358|text|简单地使用这个:-|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4474359|android+{
+++++++++.
+++++++++.
+++++++++.
+useLibrary+'org.apache.http.legacy'
+++++++++.
+++++++++.
+++++++++.
++++++++++}|code-block|syntax|javascript|4474360|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Simply use this :-

<pre><code>android {
 .
 .
 .
 useLibrary 'org.apache.http.legacy'
 .
 .
 .
 }
</code></pre>

blocks|key|4475191|text|sdk+23和23%2B不支持HttpClient。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4475192|如果您需要使用into+sdk+23，请在gradle中添加以下代码：|4475193|android+{
++++useLibrary+'org.apache.http.legacy'
}|code-block|syntax|javascript|4475194|这对我很有效。希望对你有用。|4475195|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

HttpClient is not supported in sdk 23 and 23+.

If you need to use into sdk 23, add below code to your gradle:

<pre><code>android {
 useLibrary 'org.apache.http.legacy'
}
</code></pre>

Its working for me. Hope useful for you.

blocks|key|4475199|text|如果你需要sdk+23，把这个添加到你的gradle中：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4475200|android+{
++++useLibrary+'org.apache.http.legacy'
}|code-block|syntax|javascript|4475201|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If you need sdk 23, add this to your gradle:

<pre><code>android {
 useLibrary 'org.apache.http.legacy'
}
</code></pre>

blocks|key|4473975|text|您的项目中有哪些接口目标？AndroidHttpClient仅适用于API+Level+8+<。也请在here上看看|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4473976|享受您的代码：)|4473977|entityMap|0|LINK|mutability|MUTABLE|url|https://hc.apache.org/httpcomponents-client-4.5.x/httpclient/dependency-info.html^0|D|H|1F|4|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]]|D|@$9|S|A|T|1|U]]|E|$]]|$1|F|3|G|5|6|7|V|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

Which API target do you have within your project?<code>AndroidHttpClient</code>is only for API Level 8 &lt;.
and please have a look on <a href="https://hc.apache.org/httpcomponents-client-4.5.x/httpclient/dependency-info.html" rel="nofollow">here</a>

enjoy your code:)

blocks|key|4474507|text|如前所述，org.apache.http.client.HttpClient在以下方面不再受支持：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4474508|SDK+(API级别)+#23。|4474509|您必须使用java.net.HttpURLConnection。|4474510|如果你想在使用HttpURLConnection时让你的代码(和生活)变得更简单，这里有一个这个类的Wrapper，它可以让你使用JSON对GET，POST和PUT进行简单的操作，例如，做一个HTTP+PUT。|4474511|HttpRequest+request+=+new+HttpRequest(API_URL+%2B+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()|code-block|syntax|javascript|4474512|请随意使用它。|4474513|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.
+*+
+*+Copyright+©+2017,+Calculistik+.+All+rights+reserved.
+*+
+*+Oracle+and+Java+are+registered+trademarks+of+Oracle+and/or+its
+*+affiliates.+Other+names+may+be+trademarks+of+their+respective+owners.
+*+
+*+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]"
+*+
+*+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<String,+String>+params+=+new+HashMap<String,+String>();

++++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+%2B+"\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))+>=+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<String,+String>+entry+:+params.entrySet())+{
++++++++++++result.append((result.length()+>+0+?+"&"+:+"")+%2B+entry.getKey()+%2B+"="+%2B+entry.getValue());//appends:+key=value+(for+first+param)+OR+&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;
++++}

}|4474514|entityMap^0|5|X|0|0|5|Q|0|7|H|1E|7|1T|4|1Y|3|22|4|27|3|2O|8|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Z|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|13|8|@$9|14|A|15|B|C]|$9|16|A|17|B|C]|$9|18|A|19|B|C]|$9|1A|A|1B|B|C]|$9|1C|A|1D|B|C]|$9|1E|A|1F|B|C]|$9|1G|A|1H|B|C]]|D|@]|E|$]]|$1|L|3|M|5|N|7|1I|8|@]|D|@]|E|$O|P]]|$1|Q|3|R|5|6|7|1J|8|@]|D|@]|E|$]]|$1|S|3|T|5|N|7|1K|8|@]|D|@]|E|$O|P]]|$1|U|3|-4|5|6|7|1L|8|@]|D|@]|E|$]]]|V|$]]

As mentioned before, <code>org.apache.http.client.HttpClient</code> is not supported any more in:

SDK (API level) #23. 

You have to use <code>java.net.HttpURLConnection</code>.

If you want to make your code (and life) easier when using <code>HttpURLConnection</code>, here is a <code>Wrapper</code> of this class that will let you do simple operations with <code>GET</code>, <code>POST</code> and <code>PUT</code> using <code>JSON</code>, like for example, doing a <code>HTTP PUT</code>.

<pre><code>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()
</code></pre>

Feel free to use it.

<pre><code>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;
 }

}
</code></pre>

blocks|key|4475212|text|在依赖项下添加以下两行|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4475213|compile+'org.apache.httpcomponents:httpcore:4.4.1'
compile+'org.apache.httpcomponents:httpclient:4.5'|code-block|syntax|javascript|4475214|然后|4475215|useLibrary+'org.apache.http.legacy'|4475216|在android下|4475217|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

Add these two lines under dependencies

<pre><code>compile 'org.apache.httpcomponents:httpcore:4.4.1'
compile 'org.apache.httpcomponents:httpclient:4.5'
</code></pre>

then 

<pre><code>useLibrary 'org.apache.http.legacy'
</code></pre>

under the android

blocks|key|4474603|text|自2021年4月起，您可以使用以下内容：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4474604|在你的应用gradle中，在'dependencies+{‘下添加以下内容：|4474605|implementation+'org.apache.httpcomponents:httpcore:4.4.10'
implementation+'org.apache.httpcomponents:httpclient:4.5.6'|code-block|syntax|javascript|4474606|在Java活动中，添加以下导入：|4474607|import+org.apache.http.client.HttpClient;|4474608|然后您应该能够将HttpClient添加到您的方法中。|4474609|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|T|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|U|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

As of April 2021, you can use the following:
In your app gradle, add the following under 'dependencies { ':
<pre><code>implementation 'org.apache.httpcomponents:httpcore:4.4.10'
implementation 'org.apache.httpcomponents:httpclient:4.5.6'
</code></pre>
In your Java activity, add the following import:
<pre><code>import org.apache.http.client.HttpClient;
</code></pre>
You should then be able to add HttpClient to your method(s).

blocks|key|4475284|text|适用于Manifest.xml内部应用程序标记中的android+API+28和更高版本|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4475285|++++<application
++++.
++++.
++++.

++++<uses-library+android:name="org.apache.http.legacy"+android:required="false"/>|code-block|syntax|javascript|4475286|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

For android API 28 and higher
in Manifest.xml inside application tag

<pre><code> &lt;application
 .
 .
 .

 &lt;uses-library android:name="org.apache.http.legacy" android:required="false"/&gt;
</code></pre>

blocks|key|4474415|text|我认为根据你的Android+Studio版本的不同，更新你的android+studio也很重要，我也很沮丧，听从了每个人的建议，但没有运气，直到我不得不将我的android版本从1.3升级到1.5，错误就像魔法一样消失了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4474416|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

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.

I have a simple class written in Android Studio:

<pre><code>package com.mysite.myapp;

import org.apache.http.client.HttpClient;

public class Whatever {
 public void headBangingAgainstTheWallExample () {
 HttpClient client = new DefaultHttpClient();
 }
}
</code></pre>

and from this I get the following compile time error:

<code>Cannot resolve symbol HttpClient</code>

Isn't <code>HttpClient</code> included in the Android Studio SDK? Even if it is not, I added it to my Gradle build like this:

<pre><code>dependencies {
 compile fileTree(dir: 'libs', include: ['*.jar'])
 compile 'com.android.support:appcompat-v7:23.0.0'
 compile 'org.apache.httpcomponents:httpclient:4.5'
}
</code></pre>

With or without the last compile line, the error is the same. What am I missing?

HttpClient won't import in Android Studio

Android Studio

Android

JSON

Java

我有一个用Android Studio编写的简单类：package com.mysite.myapp;import org.apache.http.client.HttpClient;public class Whatever {    public void headBangingAgainstTheWallExample () {        HttpClient client = new 

问HttpClient不能在Android Studio中导入
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回答 19

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问HttpClient不能在Android Studio中导入
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