如果试图以不支持的操作来访问某个资源，返回405 Method Not Allowed错误

abc /BucketName HTTP/1.1
Host: storage.aliyun.com
Date: date
Authorization: signatureValue

x-oss-request-id: 2403382433A2EDA8
Allow: GET, DELETE, HEAD, PUT
Content-Type: application/xml
Transfer-Encoding: chunked
Date: Thu, 31 Mar 2011 10:01:52 GMT
Server: AliyunOSS

<?xml version="1.0" ?>
<Error>
	<Code>
		MethodNotAllowed
	</Code>
	<Message>
		The specified method is not allowed against this resource.
	</Message>
	<ResourceType>
		BUCKET
	</ResourceType>
	<Method>
		abc
	</Method>
	<RequestId>
		2403382433A2EDA8
	</RequestId>
	<HostId>
		storage.aliyun.com
	</HostId>
</Error>

注意：如果访问的资源是 /bucket/， ResourceType应该是bucket，如果访问的资源是 /bucket/object，ResourceType应该是object。