如何在非模块化 JavaFX 应用程序中添加模块“java.smartcardio”？

Question

我正在开发一个 JavaFX 应用程序，该应用程序当前是非模块化的。如果我要使我的应用程序模块化，那么我需要对不完全在我指挥下的其他项目进行许多更改。

问题是，如果没有

module-info.java

，我就无法使用该模块 java.smartcardio。幸运的是，Eclipse 允许我手动添加它（下面附有屏幕截图）。

但是每次

Maven Update

之后，我都需要再次手动添加。还有其他更方便的方法吗？

重现问题的代码：

Fx智能卡：

package org.example.fxsmartcard;
import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.ComboBox;
import javafx.scene.control.Label;
import javafx.scene.layout.*;
import javafx.stage.Stage;
import javafx.scene.control.Button;
import java.util.List;
import javax.smartcardio.CardException;
import javax.smartcardio.CardTerminal;
import org.example.smartcardservice.SmartCardServices;

public class FxSmartCard extends Application {
  private SmartCardServices cardServices;
  public FxSmartCard() {
    super();
    this.cardServices = new SmartCardServices();
  }
  @Override
  public void start(Stage stage) {
    Label title = new Label("JavaFX meets SmartCard World!");
    title.setStyle("-fx-font-size: 32px;");
    final ComboBox < String > terminalComboBox = new ComboBox < String > ();
    List < CardTerminal > terminals = null;
    Button connect = new Button("Connect");
    try {
      terminals = cardServices.getTerminals();
      if (terminals != null && terminals.size() > 0) {
        for (CardTerminal terminal: terminals) {
          terminalComboBox.getItems().add(terminal.getName());
        }
        terminalComboBox.getSelectionModel().selectFirst();
        final List < CardTerminal > terminalList = terminals;
        connect.setOnAction(e -> {
          CardTerminal selectedTerminal = cardServices.getCardReader(terminalList,
            terminalComboBox.getSelectionModel().getSelectedItem());
          try {
            cardServices.connectToCard(selectedTerminal);
          } catch (CardException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
          }
        });
      } else {
        terminalComboBox.setValue("No Terminal present");
        connect.setDisable(true);
      }
    } catch (CardException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }
    GridPane gridpane = new GridPane();
    GridPane.setConstraints(terminalComboBox, 1, 0);
    GridPane.setConstraints(connect, 2, 0);
    gridpane.getChildren().addAll(terminalComboBox, connect);
    VBox layout = new VBox(10, title, gridpane);
    layout.setPadding(new Insets(12));
    Scene scene = new Scene(layout);
    stage.setScene(scene);
    stage.show();
  }
  public static void main(String[] args) {
    launch();
  }
}

智能卡服务：

package org.example.smartcardservice;
import java.util.List;
import javax.smartcardio.CardException;
import javax.smartcardio.CardTerminal;
import javax.smartcardio.TerminalFactory;
public class SmartCardServices {
  public List < CardTerminal > getTerminals() throws CardException {
    TerminalFactory factory = TerminalFactory.getDefault();
    return factory.terminals().list();
  }
  public void connectToCard(CardTerminal terninalSource) throws CardException {
    terninalSource.connect("*");
  }
  public CardTerminal getCardReader(List < CardTerminal > terminals, String name) {
    for (CardTerminal terminal: terminals) {
      if (terminal.getName().equals(name)) {
        return terminal;
      }
    }
    return null;
  }
}

配置：

<project xmlns = "http://maven.apache.org/POM/4.0.0"
    xmlns: xsi = "http://www.w3.org/2001/XMLSchema-instance"
    xsi: schemaLocation = "http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>JavaFXmeetsSmartCard</groupId>
    <artifactId>JavaFXmeetsSmartCard</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <dependencies>
        <dependency>
            <groupId>org.openjfx</groupId>
            <artifactId>javafx-controls</artifactId>
            <version>21.0.2</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.11.0</version>
                <configuration>
                    <source>21</source>
                    <target>21</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

Answer 1

这似乎纯粹是IDE问题。我找不到直接的解决方案，但有两种替代方法来处理它。

首先通过替换手动更改 Eclipse .classpath 文件

<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-21">
   <attributes>
      <attribute name="maven.pomderived" value="true" />
   </attributes>
</classpathentry>

与

<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-21">
   <attributes>
      <attribute name="module" value="true" />
      <attribute name="limit-modules" value="java.se,jdk.accessibility,jdk.dynalink,jdk.httpserver,jdk.incubator.vector,jdk.jartool,jdk.javadoc,jdk.jconsole,jdk.jshell,jdk.jsobject,jdk.management.jfr,jdk.net,jdk.nio.mapmode,jdk.sctp,jdk.security.auth,jdk.security.jgss,jdk.unsupported,jdk.unsupported.desktop,jdk.xml.dom,java.smartcardio" />
      <attribute name="maven.pomderived" value="true" />
   </attributes>
</classpathentry>

其次，您可以使用“配置构建路径”功能将模块“java.smartcardio”添加到项目中。

如果您不想一次又一次重复配置构建路径，则每当您执行“Maven > Update Project”时，都需要取消选中“从 pom.xml 更新项目配置”框（默认选中）

.

您可以在帖子中找到更多信息：Eclipse maven编译器不支持编译器插件compilerArgs