android studio不能使用HttpClient

在android { }里添加useLibrary 'org.apache.http.legacy'

如下：

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.3"

    defaultConfig {
        applicationId "com.zd.httpclicenttest"
        minSdkVersion 8
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    useLibrary 'org.apache.http.legacy'
}