Question

我必须保存XML文件。我正在使用DOm，文件很大，大约1,3 Gb。为此，我使用下一个代码：

public void guardarDocumentoXML() throws FileNotFoundException, IOException {
    DOMImplementationLS ls = (DOMImplementationLS)documentoXML.getImplementation();
    LSSerializer ser = ls.createLSSerializer();
    LSOutput out = ls.createLSOutput();
    out.setEncoding("UTF-8");
    FileOutputStream output = new FileOutputStream(nombrearchivo);
    try {
        out.setByteStream(output);
        ser.write(documentoXML, out);
    } finally {
        output.close();
    }
}

当我尝试保存小型XML文件时我没有问题，但是当我尝试保存一个巨大的文件时，我收到了下一个例外：

Exception in thread "AWT-EventQueue-1" org.w3c.dom.ls.LSException
at org.apache.xml.serializer.dom3.LSSerializerImpl.write(LSSerializerImpl.java:1087)
at datos.XML_Seguridad.guardarDocumentoXML(XML_Seguridad.java:824)
at datos.GUI$1ButtonListener.actionPerformed(GUI.java:2100)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6505)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3321)
at java.awt.Component.processEvent(Component.java:6270)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4861)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
at java.awt.Container.dispatchEventImpl(Container.java:2273)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:729)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:688)
at java.awt.EventQueue$3.run(EventQueue.java:686)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:702)
at java.awt.EventQueue$4.run(EventQueue.java:700)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:699)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
Caused by: java.lang.NegativeArraySizeException
at org.apache.xml.serializer.SerializerBase.characters(SerializerBase.java:958)
at org.apache.xml.serializer.dom3.DOM3TreeWalker.dispatachChars(DOM3TreeWalker.java:381)
at org.apache.xml.serializer.dom3.DOM3TreeWalker.serializeText(DOM3TreeWalker.java:1040)
at org.apache.xml.serializer.dom3.DOM3TreeWalker.startNode(DOM3TreeWalker.java:429)
at org.apache.xml.serializer.dom3.DOM3TreeWalker.traverse(DOM3TreeWalker.java:272)
at org.apache.xml.serializer.dom3.DOM3SerializerImpl.serializeDOM3(DOM3SerializerImpl.java:111)
at org.apache.xml.serializer.dom3.LSSerializerImpl.write(LSSerializerImpl.java:1069)
... 37 more

我使用Xerces 2.11库。你能帮助我吗？感谢

Answer 1

Xerces2 Java 2.11.0取决于serializer.jar。在此库中，您将找到org.apache.xml.serializer.SerializerBase类。

代码m_charsBuff = new char\[length * 2 + 1\];（在第958行）表明即使长度某种程度上是负面的（由于一个错误），那么数组总是会以正数创建。事件NegativeArraySizeException正在被提出

如果应用程序尝试创建负大小的数组，则抛出该异常。

表示由length * 2 + 1计算引起的integer overflow。我相信这是因为提供给DOM解析器的XML文档非常大。</ p>

我考虑使用SAX解析器 - 请参阅What is the difference between SAX and DOM?进行比较。

org.w3c.dom.ls.LSException引起：java.lang.NegativeArraySizeException

1 个答案: