如何在另一个正在运行的JFrame上暂停 [英] How do I pause a JFrame while another is running

问题描述

我正在建立一个带有数据库的服务器，但是当我加载主JFrame时，而当我连接到数据库时，读取用户名&我选择了.properties文件中的密码，我选择让用户知道程序正在运行，该程序在特定时间内的运行情况，并让他创建一个.properties文件(如果不存在)(首次启动). 问题是我需要创建2个jframe，1个显示启动进度，1个仅在用户需要创建.properties文件时出现:问题是我必须在第一个运行时暂停第一个，并在第二个窗口关闭时重新开始运行，执行所有操作；我有两种方法，但没有用:首先，我尝试插入一个wait()调用以打开第二个JFrame，并在关闭它的同时插入notify()调用；其次，我尝试使用线程，但是问题是我停止的线程在应有的时候没有启动……这是一些代码:

I'm making a Server with a database inside, but while I'm loading the main JFrame and while I'm connecting to the database reading username & password from a .properties file I chosed to let the user know that the program is running, what the program is doing in that specific moment, and also let him create a .properties file if it not exists (first launch). The problem is that I need to create 2 jframes, 1 that shows the launch progress, and 1 that appears only when user needs to create a .properties file: the problem is that I have to pause the first one while the second is running, and restart running the first while the second is closed performing all actions; I made it in two ways, but it didn't work: first, I tried inserting a wait() call opening the second JFrame and a notify() call while closing it; second, I tried using threads, but the problem is that the thread that I stop doesn't start when it should... here's some code:

jFrame1.setBounds(0,0,500,500);
    this.setVisible(true);
    jProgressBar2.setValue(0);
    prop = new Properties();
    jTextArea1.setText(jTextArea1.getText()+"Searching file config.properties... \n");
    try {
        FileReader fr = new FileReader("config.properties");
        jProgressBar2.setValue(33);
        jLabel3.setText("33");
        jTextArea1.setText(jTextArea1.getText()+"File config.properties found... \n");
    } catch (FileNotFoundException ex) {
        jFrame1.setVisible(true);
        jTextArea1.setText(jTextArea1.getText()+"File config.properties not found... \n");
    }

我想在进入捕获"部分时暂停； "this"是第一个JFrame，"jFrame1"是第二个JFrame. 一些提示/技巧?

I want to pause while I ented the "catch" section; "this" is the first JFrame, "jFrame1" is the second one. Some hints/tips?

推荐答案

解决方案:不要使用多个JFrame.使充当模式对话框的窗口不是第二个JFrame，而是真正的模式JDialog.

Solution: don't use multiple JFrames. Make the window that's acting as a modal dialog not a second JFrame, but rather a real modal JDialog.

我们可能应该将这个问题作为一个重复来结束，因为这个完全相同的问题会一再被问到.

We should probably close this question as a duplicate as this exact same question gets asked again and again.

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