spring - 为什么spring boot找不到GroovySystem?
问题描述
我在intellij中使用带有批处理的springboot项目。当我开始调试项目时,出现以下错误。
**我缺少哪一部分以及如何解决?
spring-bean 兼容的 groovy 版本是什么?**
java.lang.NoClassDefFoundError: groovy/lang/GroovySystem
at org.springframework.beans.factory.groovy.GroovyBeanDefinitionReader.<init>(GroovyBeanDefinitionReader.java:150) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.boot.BeanDefinitionLoader.<init>(BeanDefinitionLoader.java:84) ~[spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.createBeanDefinitionLoader(SpringApplication.java:766) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.load(SpringApplication.java:706) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.prepareContext(SpringApplication.java:392) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:314) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at be.kava.informix.batch.BatchApplication.main(BatchApplication.java:70) [classes/:na]
Caused by: java.lang.ClassNotFoundException: groovy.lang.GroovySystem
at java.net.URLClassLoader.findClass(URLClassLoader.java:382) ~[na:1.8.0_191]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_191]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) ~[na:1.8.0_191]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_191]
... 9 common frames omitted
我检查了GroovyBeanDefinitionReader.java
我看到这个导入是红色的:import groovy.lang.GroovySystem;
我已经添加了这个依赖,但我得到了另一个错误,如下所示。
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-all</artifactId>
<version>2.4.5</version>
</dependency>
错误:
java.lang.IncompatibleClassChangeError: Implementing class
at java.lang.ClassLoader.defineClass1(Native Method) ~[na:1.8.0_191]
at java.lang.ClassLoader.defineClass(ClassLoader.java:763) ~[na:1.8.0_191]
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[na:1.8.0_191]
at java.net.URLClassLoader.defineClass(URLClassLoader.java:468) ~[na:1.8.0_191]
at java.net.URLClassLoader.access$100(URLClassLoader.java:74) ~[na:1.8.0_191]
at java.net.URLClassLoader$1.run(URLClassLoader.java:369) ~[na:1.8.0_191]
at java.net.URLClassLoader$1.run(URLClassLoader.java:363) ~[na:1.8.0_191]
at java.security.AccessController.doPrivileged(Native Method) ~[na:1.8.0_191]
at java.net.URLClassLoader.findClass(URLClassLoader.java:362) ~[na:1.8.0_191]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_191]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) ~[na:1.8.0_191]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_191]
at org.springframework.beans.factory.groovy.GroovyBeanDefinitionReader.<init>(GroovyBeanDefinitionReader.java:150) ~[spring-beans-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.boot.BeanDefinitionLoader.<init>(BeanDefinitionLoader.java:84) ~[spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.createBeanDefinitionLoader(SpringApplication.java:766) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.load(SpringApplication.java:706) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.prepareContext(SpringApplication.java:392) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:314) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248) [spring-boot-2.1.4.RELEASE.jar:2.1.4.RELEASE]
at be.kava.informix.batch.BatchApplication.main(BatchApplication.java:70) [classes/:na]
我也将此插件添加到我的 pom.xml 中。
<plugin>
<groupId>org.codehaus.gmavenplus</groupId>
<artifactId>gmavenplus-plugin</artifactId>
<version>RELEASE</version>
<executions>
<execution>
<goals>
<goal>addSources</goal>
<goal>addTestSources</goal>
<goal>generateStubs</goal>
<goal>compile</goal>
<goal>testGenerateStubs</goal>
<goal>testCompile</goal>
<goal>removeStubs</goal>
<goal>removeTestStubs</goal>
</goals>
</execution>
</executions>
</plugin>
解决方案
我通过从依赖项中删除所有版本并依赖 Spring starter 解决了这个问题。将版本添加到依赖项会导致版本冲突。Spring starter 知道什么是合适的版本。
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