AFHTTPSessionManager * manager = [AFHTTPSessionManager manager];
manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json", @"text/json",@"text/javascript",@"text/html",nil];
Error Domain=com.alamofire.error.serialization.response Code=-1016 "Request failed: unacceptable con
原文：http://www.cnblogs.com/tanglimei/p/5021741.html