相关疑难解决方法(0)

我试图呼叫一个Web服务,但面临一个奇怪的行为.我们的服务器上运行了一个Web服务,但代码不对我们开放,因此无法看到墙后面发生了什么服务的所有者已经暴露了基于Web的测试客户端UI,它在文本框中输入并将显示对测试目的的响应.此输入框以下面提到的格式输入

<CONTENT>
 <CONTENTID></CONTENTID>
 <DOCUMENTID>DRI2</DOCUMENTID>
 <LOCALECODE>en_US</LOCALECODE>
 <LATEST_VERSION>false</LATEST_VERSION>
 <INCREASEVIEWCOUNT>false</INCREASEVIEWCOUNT>
 <ACTIVITY_TYPE></ACTIVITY_TYPE>
</CONTENT>

它在这个用户界面上工作得很好,但是当我试图通过我的java代码调用这个Web服务时它连接以及获得服务授权但是当我试图调用上面的方法它给我以下错误消息

AxisFault
 faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.userException
 faultSubcode: 
 faultString: org.xml.sax.SAXParseException: Content is not allowed in prolog.
 faultActor: 
 faultNode: 
 faultDetail: 
 {http://xml.apache.org/axis/}stackTrace:org.xml.sax.SAXParseException: Content is not allowed in prolog.
 at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
 at org.apache.xerces.util.ErrorHandlerWrapper.fatalError(Unknown Source)
 at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
 at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
 at org.apache.xerces.impl.XMLScanner.reportFatalError(Unknown Source)
 at org.apache.xerces.impl.XMLDocumentScannerImpl$PrologDispatcher.dispatch(Unknown Source)
 at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
 at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
 at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
 at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
 at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
 at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
 at javax.xml.parsers.SAXParser.parse(SAXParser.java:395)
 at org.apache.axis.encoding.DeserializationContext.parse(DeserializationContext.java:227)
 at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:696)
 at org.apache.axis.Message.getSOAPEnvelope(Message.java:435)
 at org.apache.axis.handlers.soap.MustUnderstandChecker.invoke(MustUnderstandChecker.java:62)
 at org.apache.axis.client.AxisClient.invoke(AxisClient.java:206) …

我正在使用Java,我正试图从一些http链接获取XML文档.我正在使用的代码是:

URL url = new URL(link);

HttpURLConnection connection = (HttpURLConnection)url.openConnection();
connection.setRequestMethod("GET");
connection.connect();
Document doc = null;

CountInputStream in = new CountInputStream(url.openStream());
doc = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(in);

不注意CountInputStream,它是一些像常规输入流一样的特殊类.

使用上面的代码,我有时会遇到错误Fatal Error :1:1: Content is not allowed in prolog.我认为这与xml格式错误有关,但我不知道如何修复它.