Java ArrayIndexOutOfBound在jtext区域中打印unicode单词时出现异常。（马来语）

我试图将从各种媒体（如“Matrubhumi”“Indiavision”）提供的rssfeeds中提取的马来语单词打印到jtext区域

我所做的是将rssfeed中的所有主题保存到一个文本文件中，然后逐行读取它们，将其打印到文本区域中。但在某些情况下，我得到了

ArrayIndexOutofBoundException

例如“印刷”ബോസ്റ്റണ്‍ സംഭവം: അമേരിക്കയിലെ സിഖ് സമൂഹം ആശങ്കയില്‍ " 给出了错误。 请指出我犯的任何错误。此外，我已将字体改为“Meera”，因此我认为这不是问题所在。还有字符串，如“ബംഗാളില്‍ ചിട്ടി കമ്പനി പൊളിഞ്ഞു, സംഘര്‍ഷം “不要显示任何错误并打开应用程序窗口。请提前感谢

  BufferedReader demo = new BufferedReader(new FileReader(Name));
  jScrollPane1 = new javax.swing.JScrollPane();
  jTextArea1 = new javax.swing.JTextArea();
  setBackground(java.awt.Color.white);
  setPreferredSize(new java.awt.Dimension(1366, 768));
  jTextArea1.setColumns(30);
  jTextArea1.setRows(10);
  jTextArea1.setBorder(null);
  jTextArea1.setFont(new java.awt.Font("Meera", 1, 24));
  jTextArea1.setEditable(false);
  jScrollPane1.setViewportView(jTextArea1);
  jTextArea1.setWrapStyleWord(true);
  jTextArea1.setLineWrap(true);
    while ((sCurrentLine = demo.readLine()) != null){
    jTextArea1.append(sCurrentLine);
}
  private javax.swing.JTextArea jTextArea1;
  public static final java.lang.Character.UnicodeBlock MALAYALAM = null;

其余代码是从netbeans自动生成的代码。 这是第二个类。主类处理获取rssfeed并将主题保存到文本文件中。文本文件的名称传递给该类，其中

FileReader（）

用于访问该文件并将内容逐行提取到字符串变量“sCurrentLine”。并使用

jTextArea.append（）

将文本追加到文本区域中

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 432
at sun.font.ExtendedTextSourceLabel.createCharinfo(ExtendedTextSourceLabel.java:772)
at sun.font.ExtendedTextSourceLabel.getCharinfo(ExtendedTextSourceLabel.java:509)
at sun.font.ExtendedTextSourceLabel.getLineBreakIndex(ExtendedTextSourceLabel.java:455)
at java.awt.font.TextMeasurer.calcLineBreak(TextMeasurer.java:325)
at java.awt.font.TextMeasurer.getLineBreakIndex(TextMeasurer.java:561)
at java.awt.font.LineBreakMeasurer.nextOffset(LineBreakMeasurer.java:358)
at java.awt.font.LineBreakMeasurer.nextLayout(LineBreakMeasurer.java:440)
at javax.swing.text.TextLayoutStrategy.sync(TextLayoutStrategy.java:323)
at javax.swing.text.TextLayoutStrategy.insertUpdate(TextLayoutStrategy.java:70)
at javax.swing.text.FlowView.loadChildren(FlowView.java:143)
at javax.swing.text.CompositeView.setParent(CompositeView.java:139)
at javax.swing.text.FlowView.setParent(FlowView.java:289)
at javax.swing.plaf.basic.BasicTextAreaUI$PlainParagraph.setParent(BasicTextAreaUI.java:239)
at javax.swing.text.CompositeView.replace(CompositeView.java:217)
at javax.swing.text.BoxView.replace(BoxView.java:181)
at javax.swing.text.View.updateChildren(View.java:1116)
at javax.swing.text.View.insertUpdate(View.java:700)
at javax.swing.plaf.basic.BasicTextUI$RootView.insertUpdate(BasicTextUI.java:1602)
at javax.swing.plaf.basic.BasicTextUI$UpdateHandler.insertUpdate(BasicTextUI.java:1861)
at javax.swing.text.AbstractDocument.fireInsertUpdate(AbstractDocument.java:202)
at javax.swing.text.AbstractDocument.handleInsertString(AbstractDocument.java:749)
at javax.swing.text.AbstractDocument.insertString(AbstractDocument.java:708)
at javax.swing.text.PlainDocument.insertString(PlainDocument.java:130)
at javax.swing.JTextArea.append(JTextArea.java:477)

我还试图通过将错误生成部分包含在一个try catch中来运行该程序，但随后我得到了另一个

ArrayIndexOutofBoundException

，但这次是在不同的行。代码段

 String RSSName;
 RSSName = "Matrubhumi";
 ReadTest demo = new ReadTest();
 demo.NewsFeed(RSSName); //Creates text file and fetch data from rssfeed
 JFrame frame = new JFrame();
 frame.setLayout(new BorderLayout());
 frame.add(new ImportantNews(RSSName),BorderLayout.CENTER);
 frame.setSize(1366, 768);
 frame.setVisible(true); // new exception is thrown in this line
 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 



 Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 496
at sun.font.ExtendedTextSourceLabel.createCharinfo(ExtendedTextSourceLabel.java:772)
at sun.font.ExtendedTextSourceLabel.getCharinfo(ExtendedTextSourceLabel.java:509)
at sun.font.ExtendedTextSourceLabel.getCharX(ExtendedTextSourceLabel.java:353)
at java.awt.font.TextLine$3.computeFunction(TextLine.java:515)
at java.awt.font.TextLine.applyFunctionAtIndex(TextLine.java:651)
at java.awt.font.TextLine.getCharXPosition(TextLine.java:668)
at java.awt.font.TextLine.getCharLinePosition(TextLine.java:678)
at java.awt.font.TextLayout.buildCache(TextLayout.java:683)
at java.awt.font.TextLayout.ensureCache(TextLayout.java:655)
at java.awt.font.TextLayout.getAdvance(TextLayout.java:885)
at sun.font.FontDesignMetrics.charsWidth(FontDesignMetrics.java:510)
at javax.swing.text.Utilities.getTabbedTextWidth(Utilities.java:279)
at javax.swing.text.GlyphPainter1.getSpan(GlyphPainter1.java:62)
at javax.swing.text.GlyphView.getPreferredSpan(GlyphView.java:592)
at javax.swing.text.View.getMaximumSpan(View.java:269)
at javax.swing.text.ParagraphView.findEdgeSpan(ParagraphView.java:768)
at javax.swing.text.ParagraphView.calculateMinorAxisRequirements(ParagraphView.java:736)
at javax.swing.plaf.basic.BasicTextAreaUI$PlainParagraph.calculateMinorAxisRequirements(BasicTextAreaUI.java:272)
at javax.swing.text.BoxView.checkRequests(BoxView.java:935)
at javax.swing.text.BoxView.getMinimumSpan(BoxView.java:568)
at javax.swing.text.BoxView.calculateMinorAxisRequirements(BoxView.java:903)
at javax.swing.text.BoxView.checkRequests(BoxView.java:935)
at javax.swing.text.BoxView.setSpanOnAxis(BoxView.java:343)
at javax.swing.text.BoxView.layout(BoxView.java:708)
at javax.swing.text.BoxView.setSize(BoxView.java:397)
at javax.swing.plaf.basic.BasicTextUI$RootView.setSize(BasicTextUI.java:1714)
at javax.swing.plaf.basic.BasicTextUI.getPreferredSize(BasicTextUI.java:917)
at javax.swing.plaf.basic.BasicTextAreaUI.getPreferredSize(BasicTextAreaUI.java:120)
at javax.swing.JComponent.getPreferredSize(JComponent.java:1651)
at javax.swing.JTextArea.getPreferredSize(JTextArea.java:619)
at javax.swing.ScrollPaneLayout.layoutContainer(ScrollPaneLayout.java:790)
at java.awt.Container.layout(Container.java:1503)
at java.awt.Container.doLayout(Container.java:1492)
at java.awt.Container.validateTree(Container.java:1688)
at java.awt.Container.validateTree(Container.java:1697)
at java.awt.Container.validateTree(Container.java:1697)
at java.awt.Container.validateTree(Container.java:1697)
at java.awt.Container.validateTree(Container.java:1697)
at java.awt.Container.validateTree(Container.java:1697)
at java.awt.Container.validate(Container.java:1623)
at java.awt.Container.validateUnconditionally(Container.java:1660)
at java.awt.Window.show(Window.java:1033)
at java.awt.Component.show(Component.java:1651)
at java.awt.Component.setVisible(Component.java:1603)
at java.awt.Window.setVisible(Window.java:1014)

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这可能是中所述的编码问题

试着换掉这条线

BufferedReader demo = new BufferedReader(new FileReader(Name));

与

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其中

encoding

应该是您存储主题的文件中使用的编码。

在添加到Jtextarea时，您在哪一行获得异常。请发布堆栈跟踪。嘿，Arun，您找到解决此问题的方法了吗？我正是从信件中得到了这个问题പ്റ്റ 及സ്റ്റ.谢谢你这么快的回复。但在做了你说的更改后运行程序时，我仍然收到了相同的错误…似乎有一个关于此的错误报告：

new BufferedReader(new InputStreamReader(new FileInputStream(filePath), encoding));