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我正在嘗試讀取大小爲10 MB的xml文件。我使用Windows7操作系統（8GB RAM），Netbeans 7.1.2如何解決線程「AWT-EventQueue-0」中的異常java.lang.OutOfMemoryError：Java堆空間
C:\>java -version
java version "1.7.0_05"
Java(TM) SE Runtime Environment (build 1.7.0_05-b05)
Java HotSpot(TM) 64-Bit Server VM (build 23.1-b03, mixed mode)
C:\>free -m
total used free shared buffers cached
Mem: 8169 3175 4993 0 0 0
-/+ buffers/cache: 3175 4993
Swap: 8169 81 8087
我試過C:\>java -Xms5120m -Xmx6144m但是沒有幫助。
堆棧跟蹤：
Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: Java heap space
at org.apache.xerces.xni.XMLString.toString(Unknown Source)
at org.apache.xerces.parsers.AbstractDOMParser.characters(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanContent(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.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.DOMParser.parse(Unknown Source)
at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source)
at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:208)
at ReadExcel.xmlappend(ReadExcel.java:343)
at ReadExcel.jButton7ActionPerformed(ReadExcel.java:331)
at ReadExcel.access$600(ReadExcel.java:42)
at ReadExcel$7.actionPerformed(ReadExcel.java:176)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.Component.processMouseEvent(Component.java:6038)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3260)
at java.awt.Component.processEvent(Component.java:5803)
at java.awt.Container.processEvent(Container.java:2058)
at java.awt.Component.dispatchEventImpl(Component.java:4410)
at java.awt.Container.dispatchEventImpl(Container.java:2116)
at java.awt.Component.dispatchEvent(Component.java:4240)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
at java.awt.Container.dispatchEventImpl(Container.java:2102)
at java.awt.Window.dispatchEventImpl(Window.java:2429)
你能發佈異常和導致它的代碼的堆棧跟蹤嗎？ –