私は Web サービスにかなり慣れていないので、添付ファイル (バイナリ ファイル) を送受信する SAAJ の例に取り組んでいます。クライアントがファイルを送信したときに動作させることができますが、要求されたときには動作しません。クライアント側で例外が発生します:
ERROR: 'Content is not allowed in prolog.'。2012 年 10 月 24 日 13:59:28 com.sun.xml.internal.messaging.saaj.soap.EnvelopeFactory createEnvelope SEVERE: SAAJ0511: 指定されたソース com.sun.xml.internal.messaging.saaj.SOAPExceptionImpl からエンベロープを作成できません: 指定されたソースからエンベロープを作成できません
誰にもアイデアはありますか???私のクライアントコードは次のとおりです:
SOAPConnectionFactory scf = SOAPConnectionFactory.newInstance();
SOAPConnection con = scf.createConnection();
SOAPFactory soapFactory = SOAPFactory.newInstance();
MessageFactory mf = MessageFactory.newInstance();
SOAPMessage msg = mf.createMessage();
SOAPHeader header = msg.getSOAPHeader();
header.detachNode();
SOAPBody body = msg.getSOAPBody();
Name bodyName = soapFactory.createName(
"remoteOpen", "remoteOpen",
"http://schemas.remoteOpen.com/remoteOpen");
SOAPBodyElement bodyElement = body.addBodyElement(bodyName);
SOAPElement projectName = bodyElement.addChildElement("projectName");
projectName.addTextNode("filename");
msg.saveChanges();
// create the endpoint and send the message
URL endpoint = new URL("http://localhost:8080/RemoteSaveProject/OpenServlet");
SOAPMessage response = con.call(msg, endpoint);
con.close();
SOAPBody responseBody = response.getSOAPBody();
SOAPElement ackElem = (SOAPElement)responseBody.getFirstChild();
String acknowledgement = ackElem.getValue();
サーバーコードは次のようになります。
MimeHeaders mimeHeaders = new MimeHeaders();
Enumeration en = request.getHeaderNames();
while (en.hasMoreElements())
{
String headerName = (String)en.nextElement();
String headerVal = request.getHeader(headerName);
StringTokenizer tk = new StringTokenizer(headerVal, ",");
while (tk.hasMoreTokens()){
mimeHeaders.addHeader(headerName, tk.nextToken().trim());
}
}
SOAPMessage message = mf.createMessage(mimeHeaders, request.getInputStream());
SOAPBody body = message.getSOAPBody();
Name bodyName = soapFactory.createName(
"remoteOpen", "remoteOpen",
"http://schemas.remoteOpen.com/remoteOpen");
Iterator projects = body.getChildElements(bodyName);
SOAPElement project = (SOAPElement)projects.next();
Iterator projectNameIter = project.getChildElements(soapFactory.createName("projectName"));
SOAPElement projectNameEle = (SOAPElement)projectNameIter.next();
String projectName = projectNameEle.getValue();
File file = new File(projectName);
SOAPMessage reply = mf.createMessage();
SOAPHeader header = reply.getSOAPHeader();
header.detachNode();
SOAPBody replyBody = reply.getSOAPBody();
SOAPBodyElement bodyElement = replyBody.addBodyElement(soapFactory.createName("ack"));
bodyElement.addTextNode("OK");
DataHandler dh = new DataHandler(new FileDataSource(file));
AttachmentPart attachment = reply.createAttachmentPart(dh);
attachment.setContentId("123");
reply.addAttachmentPart(attachment);
reply.saveChanges();
response.setStatus(HttpServletResponse.SC_OK);
putHeaders(reply.getMimeHeaders(), response);
response.setContentType("text/xml");
ServletOutputStream replyOS = response.getOutputStream();
reply.writeTo(replyOS);
replyOS.flush();
replyOS.close();
putHeaders は次のようになります。
Iterator it = headers.getAllHeaders();
while (it.hasNext())
{
MimeHeader header = (MimeHeader) it.next();
String[] values = headers.getHeader(header.getName());
if (values.length == 1)
{
res.setHeader( header.getName(), header.getValue());
}
else
{
StringBuffer concat = new StringBuffer();
int i = 0;
while (i < values.length)
{
if (i != 0)
{
concat.append(',');
}
concat.append(values[i++]);
}
res.setHeader(header.getName(), concat.toString());
}
}