使用AFN3.0下载xml文件，偶尔下载失败提示404，下载地址正常，网络也正常。

Question

<NSHTTPURLResponse: 0x17422acc0> { URL: http://120.78.16.30/hx/upload... } { status code: 404, headers {

Connection = "Keep-Alive";
"Content-Type" = "text/html;charset=UTF-8";
Date = "Sat, 30 Sep 2017 08:29:21 GMT";
"Keep-Alive" = "timeout=5, max=100";
Server = "Apache/2.4.3 (Unix) mod_jk/1.2.41";
"Transfer-Encoding" = Identity;

} }

Answer 1

设置响应结构：

shareInstance.responseSerializer = [AFHTTPResponseSerializer serializer];
shareInstance.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json",@"text/xml"];

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