Android 访问网络服务时报异常：org.apache.http.conn.HttpHostConnectException: Connection to refused
我自己遇到的情景式，在真机上测试，真机未开启网络所致。
另外还有可能出现该异常的情况，一是：未加访问网络的权限，android.permission.INTERNET
二是：机器防火墙没关.
转载于:https://www.cnblogs.com/xl0715/p/3431908.html
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