Fix Android on java.net.UnknownHostException:Unable to resolve host "XXXX": No address associated wit

Title: Fix Android above java.net.UnknownHostException:Unable to resolve host "m.blog.csdn.net": No address associated with Hostname Error:

This is due to the fact that we did not create an open network for simulators and manifest during the development process,

There are two ways of solving this:

1, Android device network connection is not opened, such as 3G Network and WiFi network

2. manifest file does not indicate network access rights

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