android Caused by: libcore.io.GaiException: getaddrinfo failed: EAI_NODATA (No address associated wi

Caused by: libcore.io.GaiException: getaddrinfo failed: EAI_NODATA (No address associated with hostname)

没有数据（没有地址与主机结合）
还是网络权限的问题

<uses-permission android:name="android.permission.INTERNET" />