Java.net. ConnectException: failed to connect to/10.0.2.2 (port 80): connect,

Java.net. ConnectException: failed to connect to/10.0.2.2 (port 80): connect,

When using GENYMOTION as the Android program debugging simulator to connect to the web server, the following error occurs: java.net. ConnectException: failed to connect to/10.0.2.2 (port 80): connect.

Solution: When you use genymotion for debugging, you cannot use 10.0.2.2 for debugging. Instead, you must use the IP address of the computer host, similar to a simulator connecting to the host through wifi.

Use ipconfig to obtain the IP address. Use the IP address to connect.