Xcode7中 http请求报错App Transport Security has blocked a cleartext HTTP

Xcode中报错如下：

2015-12-31 22:59:56.720 Vege[7083:8115428] App Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure. Temporary exceptions can be configured via your app's Info.plist file.

原因：Xcode7中禁用了http明文请求

解决：

1、使用https协议

2、在Info.plist 中添加配置如下

添加key NSAppTransportSecurity
类型 Dictionary（添加会自动转换为App Transport Security Settings）

在App Transport Security Settings 添加子项 NSAllowsArbitraryLoads 类型Boolean，值YES