我使用gradle:installDist分发JavaFX应用程序时遇到问题。我将问题简化为一个基本示例。
我的应用程序具有以下设置:
build.gradle:
plugins {
id 'java'
id 'application'
id 'org.openjfx.javafxplugin' version '0.0.5'
}
group 'de.testing'
version '1.0-SNAPSHOT'
repositories {
mavenCentral()
}
dependencies {
compile group: 'org.hibernate', name: 'hibernate-core', version: '5.4.0.Final'
compile group: 'com.h2database', name: 'h2', version: '1.4.197'
}
mainClassName = 'de.testing.Main'
代码:
package de.testing;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
public class Main {
public static void main(String[] args) {
EntityManagerFactory emf = Persistence.createEntityManagerFactory("thePersistenceUnit");
EntityManager em = emf.createEntityManager();
}
}
persistence.xml:
<?xml version="1.0" encoding="UTF-8" ?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" version="1.0">
<persistence-unit name="thePersistenceUnit" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
<properties>
<property name="connection.driver_class" value="org.h2.Driver"/>
<property name="hibernate.connection.url" value="jdbc:h2:~/testing"/>
<property name="hibernate.dialect" value="org.hibernate.dialect.H2Dialect"/>
<property name="hibernate.hbm2ddl.auto" value="update"/>
<property name="hibernate.show_sql" value="true" />
</properties>
</persistence-unit>
</persistence>
当我在IDE中运行它时,一切都很好。 但是,当我使用gradle:installDist分发应用程序并尝试运行开始脚本时,出现以下异常:
.\testing.bat
Jan. 04, 2019 6:53:22 NACHM. org.hibernate.jpa.internal.util.LogHelper logPersistenceUnitInformation
INFO: HHH000204: Processing PersistenceUnitInfo [
name: thePersistenceUnit
...]
Jan. 04, 2019 6:53:22 NACHM. org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {[WORKING]}
Jan. 04, 2019 6:53:22 NACHM. org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
Exception in thread "main" java.lang.NoClassDefFoundError: net/bytebuddy/NamingStrategy$SuffixingRandom$BaseNameResolver
at org.hibernate.orm.core@5.4.0.Final/org.hibernate.cfg.Environment.buildBytecodeProvider(Environment.java:345)
at org.hibernate.orm.core@5.4.0.Final/org.hibernate.cfg.Environment.buildBytecodeProvider(Environment.java:337)
at org.hibernate.orm.core@5.4.0.Final/org.hibernate.cfg.Environment.<clinit>(Environment.java:230)
at org.hibernate.orm.core@5.4.0.Final/org.hibernate.boot.registry.StandardServiceRegistryBuilder.<init>(StandardServiceRegistryBuilder.java:78)
at org.hibernate.orm.core@5.4.0.Final/org.hibernate.boot.registry.StandardServiceRegistryBuilder.<init>(StandardServiceRegistryBuilder.java:67)
at org.hibernate.orm.core@5.4.0.Final/org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:202)
at org.hibernate.orm.core@5.4.0.Final/org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:174)
at org.hibernate.orm.core@5.4.0.Final/org.hibernate.jpa.boot.spi.Bootstrap.getEntityManagerFactoryBuilder(Bootstrap.java:76)
at org.hibernate.orm.core@5.4.0.Final/org.hibernate.jpa.HibernatePersistenceProvider.getEntityManagerFactoryBuilder(HibernatePersistenceProvider.java:171)
at org.hibernate.orm.core@5.4.0.Final/org.hibernate.jpa.HibernatePersistenceProvider.getEntityManagerFactoryBuilderOrNull(HibernatePersistenceProvider.java:119)
at org.hibernate.orm.core@5.4.0.Final/org.hibernate.jpa.HibernatePersistenceProvider.getEntityManagerFactoryBuilderOrNull(HibernatePersistenceProvider.java:61)
at org.hibernate.orm.core@5.4.0.Final/org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:50)
at java.persistence@2.2/javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:79)
at java.persistence@2.2/javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:54)
at testing@1.0-SNAPSHOT/de.testing.Main.main(Main.java:9)
Caused by: java.lang.ClassNotFoundException: net.bytebuddy.NamingStrategy$SuffixingRandom$BaseNameResolver
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:583)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
... 15 more
但是,当我删除
id 'org.openjfx.javafxplugin' version '0.0.5'
从我的gradle插件列表中并重新分发应用程序,使用gradle:installDist中分发的开始脚本,它可以正常运行。
答案 0 :(得分:1)
可以使用您发布的代码轻松重现该问题。
我可以确认它与javafx-gradle-plugin有关,后者又使用java9-modularity插件。 here之前已经提过一个问题,可能与它有关。
基本上,问题在于使用此插件将所有依赖项添加到模块路径,而没有一个添加到类路径。
IDE为何起作用?
“从IDE运行”时,我假设您正在运行run
任务:
./gradle run
那很好。如果您这样做:
./gradle --info run
它将打印命令行。像这样:
/Users/<user>/Downloads/jdk-11.0.1.jdk/Contents/Home/bin/java \
--add-modules javafx.controls,javafx.fxml \
--module-path /path/to/your-project/build/classes/java/main: \
/path/to/your-project/build/resources/main: \
/Users/<user>/.gradle/caches/modules-2/files-2.1/org.hibernate/hibernate-core/5.4.0.Final/70...2b/hibernate-core-5.4.0.Final.jar: \
...
/Users/<user>/.gradle/caches/modules-2/files-2.1/com.sun.xml.fastinfoset/FastInfoset/1.2.15/bb..e8/FastInfoset-1.2.15.jar \
-Dfile.encoding=UTF-8 -Duser.variant \
-cp /path/to/your-project/build/classes/java/main: \
/path/to/your-project/build/resources/main: \
/Users/<user>/.gradle/caches/modules-2/files-2.1/org.hibernate/hibernate-core/5.4.0.Final/70...2b/hibernate-core-5.4.0.Final.jar: \
...
/Users/<user>/.gradle/caches/modules-2/files-2.1/com.sun.xml.fastinfoset/FastInfoset/1.2.15/bb..e8/FastInfoset-1.2.15.jar \
de.testing.Main
从build/install/your-project/lib
运行
因此,您实际上可以尝试从installDist
任务获得的lib文件夹中的所有jar中手动运行。在终端上:
./gradlew installDist
cd build/install/your-project/lib
/Users/<user>/Downloads/jdk-11.0.1.jdk/Contents/Home/bin/java \
--add-modules javafx.controls,javafx.fxml \
--module-path . \
-cp '*' \
de.testing.Main
应该可以。
问题
那为什么运行脚本失败?
如果您编辑脚本:
cd build/install/your-project/bin
nano your-project
您可以验证以下行:
...
esac
CLASSPATH=
# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
...
包含一个空的类路径。如果您看到了最后的选项:
# Collect all arguments for the java command, following the shell quoting and substitution rules
eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $YOUR-PROJECT_OPTS -classpath "\"$CLASSPATH\"" de.testing.Main "$APP_ARGS"
这意味着最终的命令行将类似于:
/Users/<user>/Downloads/jdk-11.0.1.jdk/Contents/Home/bin/java \
--add-modules javafx.controls,javafx.fxml \
--module-path . \
-classpath \ // <--- Nothing is added here!
de.testing.Main
这实际上开始,因为所有的jar已添加到模块路径中。但是由于类路径为空而失败,并发布了异常。
可能的修复
手动修复
一种可能的解决方法是在运行installDist
任务并添加类路径后编辑脚本,例如:
CLASSPATH="../lib/*"
保存脚本,然后运行:
cd build/install/your-project/bin
./your-project
应该可以。
修改installDist
任务
很显然,您不会手动执行此操作,因此这是对startScripts
任务的修复,可以将其添加到build.gradle文件中:
tasks.startScripts { doLast { def scriptFile =文件“ $ {outputDir} / $ {applicationName}” scriptFile.text = scriptFile.text.replace('CLASSPATH =','CLASSPATH = \'$ APP_HOME / lib / * \'') } }
删除插件
其他可能的解决方案是删除插件并使用旧方法:
dependencies {
compile group: 'org.hibernate', name: 'hibernate-core', version: '5.4.0.Final'
compile group: 'com.h2database', name: 'h2', version: '1.4.197'
compile "org.openjfx:javafx-base:11.0.1:mac"
compile "org.openjfx:javafx-controls:11.0.1:mac"
compile "org.openjfx:javafx-graphics:11.0.1:mac"
compile "org.openjfx:javafx-fxml:11.0.1:mac"
}
compileJava {
doFirst {
options.compilerArgs = [
'--module-path', classpath.asPath,
'--add-modules', 'javafx.controls,javafx.fxml'
]
}
}
run {
doFirst {
jvmArgs = [
'--module-path', classpath.asPath,
'--add-modules', 'javafx.controls,javafx.fxml'
]
}
}
运行installDist
任务后,您可以验证脚本是否包含完整的类路径:
CLASSPATH=$APP_HOME/lib/your-project.jar:$APP_HOME/lib/hibernate-core-5.4.0.Final.jar:...:$APP_HOME/lib/FastInfoset-1.2.15.jar
阴影罐
另一种解决方案,保留插件,但创建一个影子罐:
jar {
manifest {
attributes 'Main-Class': 'de.testing.Launcher'
}
from {
configurations.compile.collect { it.isDirectory() ? it : zipTree(it) }
}
}
其中Launcher
是不扩展Application
的类:
public class Launcher {
public static void main(String[] args) {
Main.main(args);
}
}
现在,您可以运行jar
任务,它将创建一个包含所有依赖项(包括JavaFX依赖项)的影子jar。然后您可以运行:
./gradlew jar
cd build/libs
java -jar your-project.jar
提出问题
最后,我建议您提出一个问题here,并关联此问题。