HTTP/1.1 协议里设计 100 (Continue) HTTP 状态码的的目的是,在客户端发送 Request Message 之前,HTTP/1.1 协议允许客户端先判定服务器是否愿意接受客户端发来的消息主体(基于 Request Headers)。
即, Client 和 Server 在 Post (较大)数据之前,允许双方“握手”,如果匹配上了,Client 才开始发送(较大)数据。
这么做的原因是,如果客户端直接发送请求数据,但是服务器又将该请求拒绝的话,这种行为将带来很大的资源开销。
解决:
修改hessian中 CURLOPT 项:
CURLOPT_HTTPHEADER => array("Content-Type: application/binary")
改为
CURLOPT_HTTPHEADER => array("Content-Type: application/binary","Expect:")
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