SAXParseException:文件的过早结束

Question

我的Google驱动器上有一个XML文件。它有一些数据是我的Android应用程序运行所需要的。因此，我决定测试是否可以从文件中获取数据，并做了一个测试SAXParser。然而，我得到了一个SAXParseException：

org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 1; Premature end of file.
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
    at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
    at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
    at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(Unknown Source)
    at testing.TestSAX.processFeed(TestSAX.java:54)
    at testing.TestSAX.main(TestSAX.java:40)  

虽然，这同样的代码可以正常工作，比如RSS提要，但它会导致Google驱动器文件崩溃。

下面是我打开这条小溪的方式：

try{
            SAXParserFactory factory = SAXParserFactory.newInstance();
            SAXParser parser = factory.newSAXParser();

            InputStream stream = new URL(url).openStream();
            Reader r = new InputStreamReader(stream,"UTF-8");
            InputSource source = new InputSource(stream);
            source.setEncoding("UTF-8");

            parser.parse(source, this);
        }catch(Exception e){
            errorOccured = true;
            e.printStackTrace();
        }  

如何解决这个问题？

Answer 1

您的InputStream有一些问题，请仔细阅读：http://www.danielschneller.com/2008/01/saxparseexception-1-1-premature-end-of.html