java Spring boot：找不到javassist
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时间：2020-11-02 22:15:56 来源:igfitidea点击:
Spring boot: javassist not found
提问by Mr U
I'm starting with spring boot and I'm trying to write a small application coupled with an H2 in memory DB.
When I'm trying to run my application I've got java.lang.ClassNotFoundException: javassist.bytecode.ClassFileSo I gueesed javassit jar was missing on the classpath. I started the application in debug mode and javassist-3.18.1-GA.jar is present in the classpath.
I'm certainly missing something but I can't figure out what.
我从 spring 启动开始，我试图在内存数据库中编写一个带有 H2 的小应用程序。
当我试图运行我的应用程序时，我得到了java.lang.ClassNotFoundException: javassist.bytecode.ClassFile所以我猜 javassit jar 在类路径上丢失了。我在调试模式下启动了应用程序，类路径中存在 javassist-3.18.1-GA.jar。
我当然错过了一些东西，但我不知道是什么。
here is the content of my POM file
这是我的 POM 文件的内容
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.1.BUILD-SNAPSHOT</version>
</parent>
<!-- Additional lines to be added here... -->
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<properties>
<java.version>1.8</java.version>
</properties>
<!-- (you don't need this if you are using a .RELEASE version) -->
<repositories>
<repository>
<id>spring-snapshots</id>
<url>http://repo.spring.io/snapshot</url>
<snapshots><enabled>true</enabled></snapshots>
</repository>
<repository>
<id>spring-milestones</id>
<url>http://repo.spring.io/milestone</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-snapshots</id>
<url>http://repo.spring.io/snapshot</url>
</pluginRepository>
<pluginRepository>
<id>spring-milestones</id>
<url>http://repo.spring.io/milestone</url>
</pluginRepository>
</pluginRepositories>
and this is my Application main class
这是我的应用程序主类
@Configuration
@EnableAutoConfiguration
@ComponentScan
public class Application {
public static void main(String[] args) throws Exception{
SpringApplication.run(Application.class, args);
}
}
and here is the stacktrace
这是堆栈跟踪
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJp
aAutoConfiguration.class]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: javassist/bytecode/ClassFile
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1578) ~[spring-beans-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545) ~[spring-beans-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1051) ~[spring-context-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:828) ~[spring-context-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:537) ~[spring-context-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118) ~[spring-boot-1.3.1.BUILD-SNAPSHOT.jar:1.3.1.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752) [spring-boot-1.3.1.BUILD-SNAPSHOT.jar:1.3.1.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.doRun(SpringApplication.java:347) [spring-boot-1.3.1.BUILD-SNAPSHOT.jar:1.3.1.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:295) [spring-boot-1.3.1.BUILD-SNAPSHOT.jar:1.3.1.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1112) [spring-boot-1.3.1.BUILD-SNAPSHOT.jar:1.3.1.BUILD-SNAPSHOT]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1101) [spring-boot-1.3.1.BUILD-SNAPSHOT.jar:1.3.1.BUILD-SNAPSHOT]
at com.practice.songbook.Application.main(Application.java:17) [classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_65]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_65]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_65]
at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_65]
at org.springframework.boot.maven.AbstractRunMojo$LaunchRunner.run(AbstractRunMojo.java:467) [spring-boot-maven-plugin-1.3.1.BUILD-SNAPSHOT.jar:1.3.1.BUILD-SNAPSHOT]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_65]
Caused by: java.lang.NoClassDefFoundError: javassist/bytecode/ClassFile
at org.hibernate.jpa.boot.scan.spi.ClassFileArchiveEntryHandler.toClassFile(ClassFileArchiveEntryHandler.java:85) ~[hibernate-entitymanager-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.jpa.boot.scan.spi.ClassFileArchiveEntryHandler.handleEntry(ClassFileArchiveEntryHandler.java:65) ~[hibernate-entitymanager-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.jpa.boot.archive.internal.ExplodedArchiveDescriptor.processDirectory(ExplodedArchiveDescriptor.java:167) ~[hibernate-entitymanager-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.jpa.boot.archive.internal.ExplodedArchiveDescriptor.processDirectory(ExplodedArchiveDescriptor.java:142) ~[hibernate-entitymanager-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.jpa.boot.archive.internal.ExplodedArchiveDescriptor.processDirectory(ExplodedArchiveDescriptor.java:142) ~[hibernate-entitymanager-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.jpa.boot.archive.internal.ExplodedArchiveDescriptor.processDirectory(ExplodedArchiveDescriptor.java:142) ~[hibernate-entitymanager-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.jpa.boot.archive.internal.ExplodedArchiveDescriptor.visitArchive(ExplodedArchiveDescriptor.java:78) ~[hibernate-entitymanager-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.jpa.boot.scan.spi.AbstractScannerImpl.scan(AbstractScannerImpl.java:72) ~[hibernate-entitymanager-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.scan(EntityManagerFactoryBuilderImpl.java:725) ~[hibernate-entitymanager-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:221) ~[hibernate-entitymanager-4.3.11.Final.jar:4.3.11.Final]
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:188) ~[hibernate-entitymanager-4.3.11.Final.jar:4.3.11.Final]
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:54) ~[spring-orm-4.2.3.RELEASE.jar:4.
2.3.RELEASE]
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:343) ~[spring-orm-4.2.3.RELEASE.jar:4.2.3.REL
EASE]
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:318) ~[spring-orm-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1637) ~[spring-beans-4.2.3.RELEASE.jar:4.2.3.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574) ~[spring-beans-4.2.3.RELEASE.jar:4.2.3.RELEASE]
... 22 common frames omitted
Caused by: java.lang.ClassNotFoundException: javassist.bytecode.ClassFile
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_65]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_65]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_65]
... 38 common frames omitted
adding a dependency to javassist doesn't solve the problem for info.
向 javassist 添加依赖项并不能解决信息问题。
回答by Thiago Pereira
Its a problem with maven dependencies. Go to your .m2 folder and erase the folder of javassist. Then update your maven dependencies and it's gonna work. I had the same problem, and it works to me
它是 maven 依赖项的问题。转到您的 .m2 文件夹并删除 javassist 文件夹。然后更新您的 Maven 依赖项，它会起作用。我有同样的问题，它对我有用
回答by Wheelchair Geek
I think you are missing this dependency: org.springframework.boot spring-boot-starter-data-jpa
我认为您缺少此依赖项：org.springframework.boot spring-boot-starter-data-jpa
回答by Mr U
I finally solved the issue. I had the exact same issue when trying to run the springboot jpa sample and decided to clean my maven repository to start from scratch. I works know. I'm not sure what was the initial problem though.
我终于解决了这个问题。我在尝试运行 springboot jpa 示例时遇到了完全相同的问题，并决定清理我的 Maven 存储库以从头开始。我工作知道。我不确定最初的问题是什么。
回答by mic4ael
You should add javassist as one of the dependencies.
您应该将 javassist 添加为依赖项之一。
<dependency>
<groupId>org.javassist</groupId>
<artifactId>javassist</artifactId>
<version>${javassist.version}</version>
</dependency>
