问题
Following the instructions in the Saxonica documentation I have code that works great for opening an XML file.
But when I use that same code to open a JSON file I get:
Caused by: net.sf.saxon.s9api.SaxonApiException: org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 1; Content is not allowed in prolog.
at net.sf.saxon.s9api.DocumentBuilder.build(DocumentBuilder.java:360)
at net.windward.datasource.xml.SaxonDataSource.ctor(SaxonDataSource.java:231)
at net.windward.datasource.xml.SaxonDataSource.<init>(SaxonDataSource.java:154)
... 2 more
Caused by: net.sf.saxon.trans.XPathException: org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 1; Content is not allowed in prolog.
at net.sf.saxon.event.Sender.sendSAXSource(Sender.java:459)
at net.sf.saxon.event.Sender.send(Sender.java:142)
at net.sf.saxon.Configuration.buildDocumentTree(Configuration.java:4184)
at net.sf.saxon.s9api.DocumentBuilder.build(DocumentBuilder.java:357)
... 4 more
Caused by: org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 1; Content is not allowed in prolog.
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:203)
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:177)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:400)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:327)
at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(XMLScanner.java:1472)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:994)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:602)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:112)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:505)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:841)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:770)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)
at net.sf.saxon.event.Sender.sendSAXSource(Sender.java:439)
... 7 more
What do I need to do differently?
回答1:
You haven't told us what you're doing, so it's hard to say what you should do differently. But clearly you're supplying a JSON file to an interface that expects XML.
The simplest way to load json is using the json-doc()
function,.
来源:https://stackoverflow.com/questions/62956935/how-do-i-open-a-json-file-in-saxon-10-1