参考:http://stackoverflow.com/questions/32153318/httpclient-wont-import-in-android-studiohttp://www.zhihu.com/question/35597452/answer/63619567http://stackoverflow.com/questions/33898857/why-warningunable-to-find-optional-library-org-apache-http-legacy-occurs 1. 在Android模块里面添加android {
useLibrary ‘org.apache.http.legacy’
} 这个对我不起作用,依然提示 不识别 org.apache.http.legacy 更新:发现在 SDK/platforms/android-23/optional 下面其实是有org.apache.http.legacy这个文件的。在这个目录下新建 optional.json, 内容如下:==========[ { “name”: “org.apache.http.legacy”, “jar”: “org.apache.http.legacy.jar”, “manifest”: false } ]===========然后这个方法生效。(谁动了我的optional.json ?!) 2. 在Dependency中添加:dependencies {
compile ‘org.apache.httpcomponents:httpcore:4.4.2’
} 这个亲测有效!! ^_^ 3. 在Dependency中添加:compile ‘org.jbundle.util.osgi.wrapped:org.jbundle.util.osgi.wrapped.org.apache.http.client:4.1.2’ 没有测试,估计有效。看别人的回复:
You can simply add this to Gradle dependencies:
compile "org.apache.httpcomponents:httpcore:4.3.2"
========================This helps. But still not enough if you want to use other classes like HttpGet
. For that I used compile 'org.jbundle.util.osgi.wrapped:org.jbundle.util.osgi.wrapped.org.apache.http.client:4.1.2'
– AlexAndro Oct 5 ’15 at 9:10 在Dependency中添加以后, Gradle会自动从server下载所需要的依赖。好神奇。。。似乎是下载到了SDK的目录?