遇到只能识别Json，而不能识别html的方式，解决方案如下
handle.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"text/plain",@"application/json",@"text/json",@"text/javascript",@"text/html",nil];
//这句话非常重要
handle.responseSerializer = [AFHTTPResponseSerializer serializer];
封装方法
https://github.com/luantianjiao/AFN.git
