Maven 正确构建
# mvn archetype:generate -DgroupId=com.help.idea -DartifactId=client -DarchetypeArtifactId=maven-archetype-quickstart -DarchetypeVersion=1.4 -DinteractiveMode=false
# mvn install:安装文件 -Dfile=rs2xml.jar -DgroupId=net.proteanit.sql -DartifactId=rs2xml -Dversion=1.0 -Dpackaging=jar
# mvn 包
但是在运行 jar 时出现以下错误
java -jar target/client-1.0-SNAPSHOT.jar Exception in thread "main" java.lang.NoClassDefFoundError: org/bouncycastle/jce/provider/BouncyCastleProvider at com.help.idea.authen.ClientMain.main(ClientMain.java:76) Caused by: java.lang.ClassNotFoundException: org.bouncycastle.jce.provider.BouncyCastleProvider at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582) at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
我有以下pom.xml
<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.help.idea</groupId>
<artifactId>client</artifactId>
<version>1.0-SNAPSHOT</version>
<name>client</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>11</maven.compiler.source>
<maven.compiler.target>11</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/com.jgoodies/jgoodies-common -->
<dependency>
<groupId>com.jgoodies</groupId>
<artifactId>jgoodies-common</artifactId>
<version>1.8.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.jgoodies/forms -->
<dependency>
<groupId>com.jgoodies</groupId>
<artifactId>forms</artifactId>
<version>1.2.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.bouncycastle/bcprov-jdk15on -->
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-jdk15on</artifactId>
<version>1.65</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-dbutils/commons-dbutils -->
<dependency>
<groupId>commons-dbutils</groupId>
<artifactId>commons-dbutils</artifactId>
<version>1.7</version>
</dependency>
<!-- https://mvnrepository.com/artifact/xml-apis/xml-apis -->
<dependency>
<build>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<!-- clean lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle -->
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.1.0</version>
</plugin>
<!-- default lifecycle, jar packaging: see https://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
<configuration>
<release>11</release>
</configuration>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
</plugin>
<plugin>
<artifactId>maven-jar-plugin</artifactId>
<version>3.0.2</version>
<configuration>
<archive>
<manifest>
<addClasspath>true</addClasspath>
<classpathPrefix>lib/</classpathPrefix>
<mainClass>com.help.idea.authen.ClientMain</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
<!-- site lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#site_Lifecycle -->
<plugin>
<artifactId>maven-site-plugin</artifactId>
<version>3.7.1</version>
</plugin>
<plugin>
<artifactId>maven-project-info-reports-plugin</artifactId>
<version>3.0.0</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
尝试了谷歌的许多建议,但无法得到正确的结果。提前致谢。
最佳答案
欢迎来到 StackOverflow。 👋 错误消息告诉您,您的类 ClientMain
无法访问类 BouncyCaSTLeProvider
。造成这种情况的可能原因是您启动的 Java 虚拟机 (JVM) 看不到包含该类的 JAR。此类 JAR 必须用 the --class-path
option 来提及。 .
查看启动命令,您可以看到没有指定类路径。解决此问题的一种方法是使用 --class-path
选项枚举所有直接和传递依赖项(尽管这需要大量工作)。
另一方面,该项目有可能创建了所谓的 fat JAR ,其中包含所有依赖项。那个,你可以用这么短的命令启动。查看 target
文件夹,看看是否有另一个可用于启动的 JAR。可能是名称中带有 -jar-with-dependencies
的东西(不要启动名称中带有 sources
或 javadoc
的任何东西,这是没有意义的) .
如果这不能解决您的问题,请关注Darren's comment并向我们展示完整的 pom,以便我们可以看到整个上下文。
关于带有 OpenJDK 11.0.2 和 BouncyCaSTLeProvider 的 Maven,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/61254401/