小编Mar*_*cos的帖子

我知道有很多关于如何获得的问题,但我想要和使用新的Java 8 Date api的例子.我也知道JodaTime库,但我想要一种没有外部库的工作方式.

功能需要抱怨这些限制:

1. 防止日期保存时间错误
2. 输入是两个Date的对象(没有时间,我知道localdatetime,但我需要处理日期实例)

我需要检测一行的双击TableView.

如何双击该行的任何部分并获取该行的所有数据以将其打印到控制台？

这个问题与此类似,但我需要访问父成员(不是控件).我不知道是否可以不使用依赖注入.

例如,我有一个父有一个成员调用用户,我需要从子控制器访问用户.

I try to use Afterburner.fx for DI in my project. I take followme.fx example and I try to apply to my project. But I don't know what's wrong because I follow example but when I run app, I get these exception:

java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
    at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:767)
Caused by: java.lang.RuntimeException: Exception in Application start method
    at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917)
    at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$151(LauncherImpl.java:182)
    at com.sun.javafx.application.LauncherImpl$$Lambda$50/1030870354.run(Unknown …

我需要将文本转换为图像。图像必须具有：

• 填充所有图像的白色背景。
• 文本为黑色。
• 如果宽度/高度小于文本长度，文本需要自动换行（可以根据字体大小变化）
• 图像尺寸 125x125

我创建了这个函数，它执行上述一些要求：

public static Image crearImagenDesdeTexto(String texto) throws IOException {
    BufferedImage img = new BufferedImage(1, 1, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2d = img.createGraphics();
    FontMetrics fm = g2d.getFontMetrics();
    int width = fm.stringWidth(texto);
    int height = fm.getHeight();
    g2d.setColor(java.awt.Color.WHITE);
    g2d.fillRect(0, 0, width, height);
    g2d.setColor(java.awt.Color.BLACK);
    Font font = new Font("Arial", Font.PLAIN, 12);
    g2d.setFont(font);
    g2d.dispose();

    img = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    g2d = img.createGraphics();
    g2d.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
    g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    g2d.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_QUALITY);
    g2d.setRenderingHint(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_ENABLE);
    g2d.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);
    g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    g2d.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_PURE);
    g2d.setFont(font);
    fm …