我有问题通过在设备上运行的android应用程序连接到服务器。在设备上它给出了http连接拒绝错误
E/log_tag(31377): Error in http connectionorg.apache.http.conn.HttpHostConnectException: Connection to http://10.0.2.2 refused
E/log_tag(31377): Error converting result java.lang.NullPointerException: `lock == null`...