localhost/127.0.0.1:8080 - Connection refused

Exception 1:java.net.ConnectException: localhost/127.0.0.1:8080 - 

Connection refused

android模拟器把它自己作为了localhost
如果你想在模拟器simulator上面访问你的电脑，使用android内置的IP 10.0.2.2

将http://localhost/127.0.0.1:8080改为http://10.0.2.2:8080