Error Domain=NSURLErrorDomain Code=-1022
"The resource could not be loaded because the App Transport Security policy requires the use of a secure connection." UserInfo={NSUnderlyingError=0x7fdd22200b20 {Error Domain=kCFErrorDomainCFNetwork Code=-1022 "(null)"}, NSErrorFailingURLStringKey=http://192.168.10.155:80/service=token_request&validateStr=hengda1024&uniqueKey=1236, NSErrorFailingURLKey=http://192.168.10.155:80/service=token_request&validateStr=hengda1024&uniqueKey=1236, NSLocalizedDescription=The resource could not be loaded because the App Transport Security policy requires the use of a secure connection.}
iOS開發中依然使用http請求，而非https請求，必須要專門設定一下plist：
添加App Transport Security Settings, 展開後輸入Allow Arbitrary Loads，值改成YES
如下圖所示：