javafx中的数据传输问题和重用变量 [英] Problems with data transmission in javafx and reuse variables

问题描述

我的程序结构化包如下
-Browser.fxml
-Elements.fxml

My program is structured package as follows -Browser.fxml -Elements.fxml

+ BrowserController：浏览器将值传递给元素url

+BrowserController : Browser transmit values url to Elements

@FXML
void txtURL(ActionEvent event) {
    Pane pnLoad = fxmlLoader.load(getClass().getResource("Elements.fxml").openStream());
    FunctionController controller = (FunctionController) fxmlLoader.getController();
    controller.viewURL(txtURL.getText()); 
}

+ ElementsController :,
-我只能使用后阅读函数viewURL的值url一次

+ElementsController :, -With reading after I can only use the value url once for function viewURL

    @FXML
    public void viewURL(String url) {
        System.out.println(url);
    }

+如何再次使用网址？

+How can I use the url again?

    @FXML
    void btnReviewUrl(ActionEvent event) {
      System.out.println(url);
    }

请帮助我！

推荐答案

您可以在类中创建一个静态变量，并将url值分配给该变量，以便在类之间再次使用anf

You can create a Static variable in your class and assign the url value to that variable to ve used again anf across classes

 public static String urlValue;

@FXML
public void viewURL(String url) {
    System.out.println(url);
    urlValue =  url;
}

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