XML请求中的额外问号。是字节顺序标记吗?

XML请求中的额外问号。是字节顺序标记吗?,xml,tomcat6,byte-order-mark,Xml,Tomcat6,Byte Order Mark,我正在给一些SAAJ服务打电话 SAAG服务接收附加了一个问号的XML。 为什么发送的xml中有一个额外的问号 收到的SOAP消息: ?<?xml version="1.0" encoding="utf-8"?> ? 错误: <faultcode>SOAP-ENV:Server.Unknown</faultcode><faultstring>com.sun.xml.internal.messaging.saaj.SOAPExceptionImp

我正在给一些SAAJ服务打电话

SAAG服务接收附加了一个问号的XML。 为什么发送的xml中有一个额外的问号

收到的SOAP消息:

?<?xml version="1.0" encoding="utf-8"?>
错误:

<faultcode>SOAP-ENV:Server.Unknown</faultcode><faultstring>com.sun.xml.internal.messaging.saaj.SOAPExceptionImpl while dispatching SOAP request: **XML declaration parsing failed**</faultstring><faultactor></faultactor><stackTrace xmlns="http://www.ssaglobal.com/OpenWorld/c4soap">com.sun.xml.internal.messaging.saaj.SOAPExceptionImpl: XML declaration parsing failed&#13;
        at com.sun.xml.internal.messaging.saaj.soap.SOAPPartImpl.lookForXmlDecl(Unknown Source)&#13;
SOAP-ENV:Server.Unknowncom.sun.xml.internal.messaging.saaj.SOAPExceptionImpl,在调度SOAP请求时:**xml声明解析失败**com.sun.xml.internal.messaaj.SOAPExceptionImpl:xml声明解析失败
;
在com.sun.xml.internal.messaging.saaj.soap.SOAPPartImpl.lookForXmlDecl(未知源)和#13;