Android 6.0（api 23）SDK已经强制移除httpclient
解决方案：
1降低api
2build.gradle中添加一句话
android {
useLibrary'org.apache.http.legacy'
}比如我这样：
android { compileSdkVersion 23 buildToolsVersion "24.0.0" defaultConfig { applicationId "com.example.myapplication"
useLibrary'org.apache.http.legacy' minSdkVersion 15 targetSdkVersion 23 versionCode 1 versionName "1.0" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } }}
文章转载自：http://www.cnblogs.com/yujiangxiong/p/6251564.html
