Android studio中“import org.apache.http.Header; 不可用

本文介绍了解决Android M及以上版本中Apache HTTP组件被移除导致的导入问题的方法。通过在Gradle中配置更新版本的Gradle和Build工具,并添加特定依赖,使开发者能够继续使用已废弃的Apache HTTP包。

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转载自:http://blog.youkuaiyun.com/jiangtianhao13269230/article/details/49447159

出处:http://www.zhihu.com/question/35597452/answer/63619567
Android studio中“import org.apache.http.Header;”没用?

ShinChven,使用:Xperia/Android/OSX/iOS/Ubuntu/Ce…
梁利晖、渡扬子 赞同
Android M 起默认移除了Apache HTTP:https://developer.android.com/intl/zh-cn/preview/behavior-changes.html
要使用的话,要这么干

1、在gradle-wrapper.properties中配置使用较新版本的gradle

distributionUrl=https://services.gradle.org/distributions/gradle-2.6-all.zip

2、在build.gradle中使用较新版本的gradle buildtools

buildscript {
repositories {
jcenter()
}
dependencies {
classpath ‘com.android.tools.build:gradle:1.3.0’

    // NOTE: Do not place your application dependencies here; they belong
    // in the individual module build.gradle files
}

}

3、添加以下依赖,重新使用已经deprecated 的apache http 包:

android {
useLibrary ‘org.apache.http.legacy’
}

4、添加apache http component 的依赖,补全缺失的类,比如Header:

dependencies {
compile ‘org.apache.httpcomponents:httpcore:4.4.2’
}

我只使用了3、4条建议就可以了。

org.apache.http.ConnectionClosedException.class org.apache.http.ConnectionReuseStrategy.class org.apache.http.Consts.class org.apache.http.ContentTooLongException.class org.apache.http.ExceptionLogger.class org.apache.http.FormattedHeader.class org.apache.http.Header.class org.apache.http.HeaderElement.class org.apache.http.HeaderElementIterator.class org.apache.http.HeaderIterator.class org.apache.http.HttpClientConnection.class org.apache.http.HttpConnection.class org.apache.http.HttpConnectionFactory.class org.apache.http.HttpConnectionMetrics.class org.apache.http.HttpEntity.class org.apache.http.HttpEntityEnclosingRequest.class org.apache.http.HttpException.class org.apache.http.HttpHeaders.class org.apache.http.HttpHost.class org.apache.http.HttpInetConnection.class org.apache.http.HttpMessage.class org.apache.http.HttpRequest.class org.apache.http.HttpRequestFactory.class org.apache.http.HttpRequestInterceptor.class org.apache.http.HttpResponse.class org.apache.http.HttpResponseFactory.class org.apache.http.HttpResponseInterceptor.class org.apache.http.HttpServerConnection.class org.apache.http.HttpStatus.class org.apache.http.HttpVersion.class org.apache.http.MalformedChunkCodingException.class org.apache.http.MessageConstraintException.class org.apache.http.MethodNotSupportedException.class org.apache.http.NameValuePair.class org.apache.http.NoHttpResponseException.class org.apache.http.ParseException.class org.apache.http.ProtocolException.class org.apache.http.ProtocolVersion.class org.apache.http.ReasonPhraseCatalog.class org.apache.http.RequestLine.class org.apache.http.StatusLine.class org.apache.http.TokenIterator.class org.apache.http.TruncatedChunkException.class org.apache.http.UnsupportedHttpVersionException.class org.apache.http.annotation.Contract.class org.apache.http.annotation.Experimental.class org.apache.http.annotation.Obsolete.class org.apache.http.annotation.ThreadingBehavior.class org.apache.http.annotation.package-info.class org.apache.http.concurrent.BasicFuture.class org.apache.http.concurrent.Cancellable.class org.apache.http.concurrent.FutureCallback.class org.apache.http.concurrent.package-info.class org.apache.http.config.ConnectionConfig.class org.apache.http.config.Lookup.class org.apache.http.config.MessageConstraints.class org.apache.http.config.Registry.class org.apache.http.config.RegistryBuilder.class org.apache.http.config.SocketConfig.class org.apache.http.config.package-info.class org.apache.http.entity.AbstractHttpEntity.class org.apache.http.entity.BasicHttpEntity.class org.apache.http.entity.BufferedHttpEntity.class org.apache.http.entity.ByteArrayEntity.class org.apache.http.entity.ContentLengthStrategy.class org.apache.http.entity.ContentProducer.class org.apache.http.entity.ContentType.class org.apache.http.entity.EntityTemplate.class org.apache.http.entity.FileEntity.class org.apache.http.entity.HttpEntityWrapper.class org.apache.http.entity.InputStreamEntity.class org.apache.http.entity.SerializableEntity.class org.apache.http.entity.StringEntity.class org.apache.http.entity.package-info.class org.apache.http.impl.AbstractHttpClientConnection.class org.apache.http.impl.AbstractHttpServerConnection.class org.apache.http.impl.BHttpConnectionBase.class org.apache.http.impl.ConnSupport.class org.apache.http.impl.DefaultBHttpClientConnection.class org.apache.http.impl.DefaultBHttpClientConnectionFactory.class org.apache.http.impl.DefaultBHttpServerConnection.class org.apache.http.impl.DefaultBHttpServerConnectionFactory.class org.apache.http.impl.DefaultConnectionReuseStrategy.class org.apache.http.impl.DefaultHttpClientConnection.class org.apache.http.impl.DefaultHttpRequestFactory.class org.apache.http.impl.DefaultHttpResponseFactory.class org.apache.http.impl.DefaultHttpServerConnection.class org.apache.http.impl.EnglishReasonPhraseCatalog.class org.apache.http.impl.HttpConnectionMetricsImpl.class org.apache.http.impl.NoConnectionReuseStrategy.class org.apache.http.impl.SocketHttpClientConnection.class org.apache.http.impl.SocketHttpServerConnection.class org.apache.http.impl.bootstrap.HttpServer.class org.apache.http.impl.bootstrap.RequestListener.class org.apache.http.impl.bootstrap.SSLServerSetupHandler.class org.apache.http.impl.bootstrap.ServerBootstrap.class org.apache.http.impl.bootstrap.ThreadFactoryImpl.class
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