StackOverflowError由TableModelListener引起 [英] StackOverflowError being caused by a TableModelListener

问题描述

我不确定这是为什么会再次出现。

I'm not sure why this is recursing.

jTable1.getModel().addTableModelListener(new TableModelListener() {

 public void tableChanged(TableModelEvent evt) {
  int sum = 0;
  int i=0;
  for (i =0 ; i<2; i++){
   sum = sum + Integer.parseInt(jTable1.getValueAt(0, i).toString());
  }
  jTable1.setValueAt(sum, 0, 2);
 }

}); 

例外情况是:(不断重复）

The exception is: (it keeps repeating)

Exception in thread "AWT-EventQueue-0" java.lang.StackOverflowError
        at javax.swing.table.DefaultTableColumnModel.getColumn(DefaultTableColumnModel.java:277)
        at javax.swing.JTable.convertColumnIndexToModel(JTable.java:2553)
        at javax.swing.JTable.getValueAt(JTable.java:2695)
        at testprogram.guitest.TestTableModel$1.tableChanged(TestTableModel.java:63)
        at javax.swing.table.AbstractTableModel.fireTableChanged(AbstractTableModel.java:280)
        at javax.swing.table.AbstractTableModel.fireTableCellUpdated(AbstractTableModel.java:259)
        at javax.swing.table.DefaultTableModel.setValueAt(DefaultTableModel.java:650)
        at javax.swing.JTable.setValueAt(JTable.java:2719)

感谢任何帮助。

推荐答案

JTable.setValueAt导致一张桌子将事件更改为触发，因此您将在事件处理程序中重复调用事件处理程序。设置模型中的值，而不是表中的值。

JTable.setValueAt causes a tablechanged event to fire, so you're calling the event handler repeatedly from within the event handler. Set the value in the model, not in the table.

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