android java.net.ConnectException: Connection 127.0.0.1:8080 refused
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今天学习网络连接遇到了一个问题就是:
转帖地址:http://apps.hi.baidu.com/share/detail/30974458
android java.net.ConnectException: Connection 127.0.0.1:8080 refused
解决方法如下:
调试中通过android simulator模拟器链接localhost或者127.0.0.1,因为我在电脑上面建立了apache,我的代码大概就是
URL url = new URL(urlString);
URLConnection urlconn = url.openConnection();
但是报错了!!
Exception 1:java.net.ConnectException: localhost/127.0.0.1:8080 -
Connection refused
问题是这样的,android模拟器(simulator)把它自己作为了localhost,也就是说,代码中使用localhost或者127.0.0.1来访问,都是访问模拟器自己!这是不行的!
如果你想在模拟器simulator上面访问你的电脑,那么就使用android内置的IP 10.0.2.2 吧, 10.0.2.2 是模拟器设置的特定ip,是你的电脑的别名alias
记住,在模拟器上用10.0.2.2访问你的电脑本机
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