添加动作perfom并验证java中的输入组件？

Question

我正在设计一个如下所示的swing界面：

在文本字段中填写信息并点击＆＃34;添加＆＃34;按钮，所有信息将显示在下表中。这是我的代码：

 private void AddActionPerformed(java.awt.event.ActionEvent evt) {                                    
    Vector record = new Vector();
    record.add(Name);
    record.add(Email);
    record.add(Address);
    record.add(PhoneNumber);

    String name = this.Name.getText();
    String email = this.Email.getText();
    String address = this.Address.getText();
    String phone = this.PhoneNumber.getText();
    System.out.println(phone);
    DefaultTableModel model = (DefaultTableModel)tblCustomer.getModel();
    model.insertRow(ERROR, record);

}

但是当我点击＆＃34;添加＆＃34;按钮，除了这些异常

之外什么也没发生

Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 64 > 4
at java.util.Vector.insertElementAt(Vector.java:598)
at javax.swing.table.DefaultTableModel.insertRow(DefaultTableModel.java:374)
at NewJFrame.AddActionPerformed(NewJFrame.java:290)
at NewJFrame.access$300(NewJFrame.java:16)
at NewJFrame$4.actionPerformed(NewJFrame.java:155)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
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:6535)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
at java.awt.Component.processEvent(Component.java:6300)
at java.awt.Container.processEvent(Container.java:2236)
at java.awt.Component.dispatchEventImpl(Component.java:4891)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Component.dispatchEvent(Component.java:4713)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
at java.awt.Container.dispatchEventImpl(Container.java:2280)
at java.awt.Window.dispatchEventImpl(Window.java:2750)
at java.awt.Component.dispatchEvent(Component.java:4713)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

有人可以指出问题是什么吗？另外如何在插入表之前验证输入组件？示例：如果名称文本字段为空，则会向用户发送错误消息。提前感谢并抱歉我的英语。

Answer 1

  

线程“AWT-EventQueue-0”中的异常java.lang.ArrayIndexOutOfBoundsException：64＆gt; 4

     

model.insertRow（ERROR，record）;

您不能随意在表格中的任何位置随意插入行。 TableModel中只有4行，因此您只能在索引0,1,2,3,4处插入行。

我建议您只使用：

model.addRow( record );

方法。然后，无论表中有多少行，该行都将添加到表的末尾。

Answer 2

那是因为你没有在你的record向量中添加任何内容，你应该在从字段中获取文本后添加变量，试试这个：

private void AddActionPerformed(java.awt.event.ActionEvent evt) {                                    
    Vector record = new Vector();

    String name = this.Name.getText();
    String email = this.Email.getText();
    String address = this.Address.getText();
    String phone = this.PhoneNumber.getText();

    record.add(name);
    record.add(email);
    record.add(address);
    record.add(phone);

    System.out.println(phone);
    DefaultTableModel model = (DefaultTableModel)tblCustomer.getModel();
    model.insertRow(ERROR, record);

}