Message=The callback body is empty.

Error Domain=com.aliyun.oss.serverError Code=-400 "(null)" UserInfo={__name=Error, HostId=localoklink.oss-cn-hangzhou.aliyuncs.com, ArgumentName=callbackBody, Message=The callback body is empty., Code=InvalidArgument, RequestId=574BFAC55CC26B48142E489B}
//打印出的callbackBoby
callback json - {"callbackBoby":"filename=${9668779/a0358021923f423694031cb1630a8e7f}&online=${x:online}","callbackUrl":"https://haoyouqian.com/osscallback"}
2016-05-30 16:31:56.479 OKLinkWallet[458:66600] callback json - {"x:online":"0"}