控制台打印：Application 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.
解决办法：修改info.plist文件
Xcode7.3 使用NSURLSession发送HTTP请求报错
原文：http://www.cnblogs.com/yujinzhong/p/5591715.html