将JMenuItem的名称赋予其ActionListener [英] Giving JMenuItem's name to it's ActionListener

问题描述

如何给我的 JMenuItem 名称附加的 ActionListener 看看？

How can I give my JMenuItems names that the ActionListener attached to them will look at?

我有一个菜单系统由一个 ActionListener 处理，这些菜单中的一些项目重复名称。这不是用户端的问题，因为它显然是做什么的;事实上，如果他们有不同的名字会更令人困惑。但是，在我的结尾，我想要唯一地标记每个项目。

I've got a menu system that's handled by a single ActionListener, and some items in those menus duplicate names. This isn't a problem on the user end, because it's obvious what does what; in fact, it would be more confusing if they had different names. However, at my end, I want to label each item uniquely.

创建我的项目的部分如下所示：

The section that creates my items looks like this:

String label = getLabel(forThisItem);
JMenuItem item = new JMenuItem(label);
item.setName(parentMenu.getName() + "_" + label);
item.addActionListener(actionListener);
parentmenu.add(item);

使用getName（）在事后询问项目（在此方法的范围之外），给出名称I给它，因为它应该，但输出

Interrogating the item afterwards (and outside the scope of this method) with getName() gives the name I gave it, as it should, but the output of

public void actionPerformed(ActionEvent ae) {
    String actionPerformed = ae.getActionCommand();
    System.out.println("actionPerformed: " + actionPerformed);
}

是用户看到的可能重复的名称，由 label ，而不是我给它的唯一名称。

is the the, possibly duplicated, name that the user sees, specified by label, not the unique name that I gave it.

如何向ActionListener提供正确的信息？

How can I give the right information to the ActionListener?

推荐答案

为什么不在menuitem上调用 setActionCommand 。而不是使用 setName ，如果你调用 setActionCommand ，你应该得到你在调用 getActionCommand

Why aren't you calling setActionCommand on the menuitem. Instead of using setName, if you call setActionCommand, you should get what you expect when you call getActionCommand

此外，它的标签，而不是标签。

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