[Android Pro] Android API 23中废弃了HttpClient的解决办法

reference to : http://blog.csdn.net/hbwindy/article/details/51326019

reference to : http://blog.csdn.net/yangqingqo/article/details/48214865

今天在写网络连接的时候发现API 23中居然找不到HttpClient，官方文档似乎是这样说的。

This interface was deprecated in API level 22.
Please use openConnection() instead. Please visit this webpage for further details.

 那么只有再找办法，还真找到了：

To continue using the Apache HTTP APIs, you must first declare the following compile-time dependency in your build.gradle file:

do not need to copy sdk/platforms/android-23/optional/org.apache.http.legacy.jar into libs folder, system auto recoginise itself.

android {
        useLibrary 'org.apache.http.legacy'  
}

 proguard cofig :

 #不混淆org.apache.http.legacy.jar 
 -dontwarn android.net.compatibility.**
 -dontwarn android.net.http.**
 -dontwarn com.android.internal.http.multipart.**
 -dontwarn org.apache.commons.**
 -dontwarn org.apache.http.**
 -keep class android.net.compatibility.**{*;}
 -keep class android.net.http.**{*;}
 -keep class com.android.internal.http.multipart.**{*;}
 -keep class org.apache.commons.**{*;}
 -keep class org.apache.http.**{*;}