好吧,所以我对javafx和一般的编程都是新手。我之前从未实际打包过程序,因为我从来不需要在IDE之外运行它们。我需要打包我的javafx程序,并且必须使用maven来处理我的所有其他依赖项。
在包含pom文件的目录中使用命令mvn jfx:jar编译程序时,构建成功并生成我的jar。通过WINRar检查时,包含以前位于根目录的/ src / main / resource文件夹中的所有文件。
然而,当使用java -jar(nameofjar).jar运行时,它不会启动,而是产生一些错误,这些错误都与无法找到特定资源有关,特别是FXML,以及其他资源。
参考文件
welcome.fxml
public void start(Stage primaryStage) {
try {
AnchorPane pane = FXMLLoader.load(MainApp.class.getResource("welcome.fxml"));
Scene scene = new Scene(pane);
primaryStage.setScene(scene);
primaryStage.setTitle("HeelBot Beta "+versionNumber);
primaryStage.getIcons().add(new Image("Icon.png"));
primaryStage.setResizable(true);
primaryStage.show();
} catch (Exception ex) {
Logger.getLogger(MainApp.class.getName()).log(Level.SEVERE, null, ex);
}
defaultProperties.properties
public class PropertiesManager {
public static void editProperty(String key, String value) throws IOException {
// create and load default properties
Properties defaultProps = new Properties();
FileInputStream in = new FileInputStream("src/main/resources/defaultProperties.properties");
defaultProps.load(in);
in.close();
// create application properties with default
Properties applicationProps = new Properties(defaultProps);
// now load properties
// from last invocation
in = new FileInputStream("src/main/resources/appProperties.properties");
applicationProps.load(in);
in.close();
//set properties
applicationProps.setProperty(key,value);
FileOutputStream out = new FileOutputStream("src/main/resources/appProperties.properties");
applicationProps.store(out, "---No Comment---");
out.close();
}
POM文件
<?xml version="1.0" encoding="UTF-8"?>
<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.coursecruncher</groupId>
<artifactId>heelbot</artifactId>
<version>1.0-SNAPSHOT</version>
<build>
<plugins>
<plugin>
<groupId>com.zenjava</groupId>
<artifactId>javafx-maven-plugin</artifactId>
<version>8.1.4</version>
<configuration>
<mainClass>MainApp</mainClass>
<verbose>true</verbose>
<jfxMainAppJarName>heelbot.jar</jfxMainAppJarName>
<deployDir>${project.basedir}/src/main/resources</deployDir>
<updateExistingJar>true</updateExistingJar>
<allPermissions>true</allPermissions>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.seleniumhq.selenium</groupId>
<artifactId>selenium-java</artifactId>
<version>2.48.2</version>
</dependency>
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-core</artifactId>
<version>1.2.4</version>
</dependency>
</dependencies>
</project>
项目结构
├── configure
├── configure.in
├── src
│ ├── main
│ │ ├── java
│ │ │ ├── CoreController(class)
│ │ │ ├── Login(class)
│ │ │ ├── LoginController(class)
│ │ │ ├── MainApp(class)
│ │ │ └── PropertiesManager(class)
│ │ │
│ │ ├── resources
│ │ │ ├── appProperties.properties
│ │ │ ├── defaultProperties.properties
│ │ │ ├── welcome.fxml
│ │ │ ├── core.fxml
│ │ │ └── Heelbot.css
错误
enter code here
java.io.FileNotFoundException: src\main\resources\defaultProperties.properties (
The system cannot find the path specified)
at java.io.FileInputStream.open0(Native Method)
at java.io.FileInputStream.open(FileInputStream.java:195)
at java.io.FileInputStream.<init>(FileInputStream.java:138)
at java.io.FileInputStream.<init>(FileInputStream.java:93)
at PropertiesManager.editProperty(PropertiesManager.java:11)
at LoginController.initialize(LoginController.java:60)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2548)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2441)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3214)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3175)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3148)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3124)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3104)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:3097)
at Main.start(Main.java:53)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$163
(LauncherImpl.java:863)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$176(Platfor
mImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$174(PlatformImpl.
java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$175(PlatformI
mpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatch
er.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$149(WinApplication.ja
va:191)
at java.lang.Thread.run(Thread.java:745)
java.io.FileNotFoundException: src\main\resources\defaultProperties.properties (
The system cannot find the path specified)
at java.io.FileInputStream.open0(Native Method)
at java.io.FileInputStream.open(FileInputStream.java:195)
at java.io.FileInputStream.<init>(FileInputStream.java:138)
at java.io.FileInputStream.<init>(FileInputStream.java:93)
at PropertiesManager.queryProperty(PropertiesManager.java:34)
at LoginController.initialize(LoginController.java:106)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2548)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2441)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3214)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3175)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3148)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3124)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3104)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:3097)
at Main.start(Main.java:53)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$163
(LauncherImpl.java:863)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$176(Platfor
mImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$174(PlatformImpl.
java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$175(PlatformI
mpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatch
er.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$149(WinApplication.ja
va:191)
at java.lang.Thread.run(Thread.java:745)
Nov 12, 2015 5:12:08 PM Main start
SEVERE: null
javafx.fxml.LoadException:
file:/D:/Programing%20Data/Projects/CourseCruncher/target/jfx/app/heelbot.jar!/w
elcome.fxml
at javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2601)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2579)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2441)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3214)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3175)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3148)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3124)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3104)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:3097)
at Main.start(Main.java:53)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$163
(LauncherImpl.java:863)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$176(Platfor
mImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$174(PlatformImpl.
java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$175(PlatformI
mpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatch
er.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$149(WinApplication.ja
va:191)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
at java.util.Properties$LineReader.readLine(Properties.java:434)
at java.util.Properties.load0(Properties.java:353)
at java.util.Properties.load(Properties.java:341)
at PropertiesManager.queryProperty(PropertiesManager.java:39)
at LoginController.initialize(LoginController.java:106)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2548)
... 17 more
我怀疑我的pom配置可能是造成问题的原因。我不太确定如何正确格式化它并尝试了各种组合和教程都无济于事。我最接近的是使用这个pom
备用POM文件
<?xml version="1.0" encoding="UTF-8"?>
<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.courecruncher</groupId>
<artifactId>heelbot</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>HeelBotBeta1</name>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.seleniumhq.selenium</groupId>
<artifactId>selenium-java</artifactId>
<version>2.48.2</version>
</dependency>
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-core</artifactId>
<version>1.2.4</version>
</dependency>
</dependencies>
<build>
<defaultGoal>clean package</defaultGoal>
<plugins>
<plugin>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.6</version>
<executions>
<execution>
<id>unpack-dependencies</id>
<phase>package</phase>
<goals>
<goal>unpack-dependencies</goal>
</goals>
<configuration>
<excludeScope>system</excludeScope>
<excludeGroupIds>junit,org.mockito,org.hamcrest</excludeGroupIds>
<outputDirectory>${project.build.directory}/classes</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.2.1</version>
<executions>
<execution>
<id>package-jar</id>
<phase>package</phase>
<goals>
<goal>exec</goal>
</goals>
<configuration>
<executable>${env.JAVA_HOME}/bin/javafxpackager</executable>
<arguments>
<argument>-createjar</argument>
<argument>-nocss2bin</argument>
<argument>-appclass</argument>
<argument>MainApp</argument>
<argument>-srcdir</argument>
<argument>${project.build.directory}/classes</argument>
<argument>-outdir</argument>
<argument>.</argument>
<argument>-outdir</argument>
<argument>${project.build.directory}</argument>
<argument>-outfile</argument>
<argument>${project.artifactId}-app</argument>
<argument>-v</argument>
</arguments>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
</project>
这会导致它找到fxml文件,但仍然会为属性文件抛出错误,我必须手动将属性文件添加到项目目录中。如何让打包的jar能够找到自己的资源,而不是在jar之外寻找资源?
答案 0 :(得分:0)
我是javafx-maven-plugin的维护者,偶然发现了这个问题;)
问题在于你读取文件的“逻辑”,访问JAR中的属性文件是以另一种方式完成的,但这不是所用插件的错误,它是一个普通的java-thing(如指出的那样)我们的抛出exxception)。要知道“当前文件夹”的位置,只需打印new File(".")
只是告诉你javafx-maven-plugin配置:没有错误
以下是我发现的一些链接,可以向您展示JAR文件中的简单属性加载:
Load Properties from resources folder within JAR
编辑:请确保对“当前工作文件夹”有一点了解,调用java -jar somejar.jar
与java -jar somefolder/somejar.jar
不同,有很大差异