Question

我正在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的兼容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，我看到此导入显示为红色：import groovy.lang.GroovySystem;

我已经添加了此依赖关系，但是出现了另一个错误，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了pom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>

Answer 1

我通过从依赖项中删除所有版本来解决此问题，并依赖于Spring starter。将版本添加到依赖项将导致版本冲突。 Spring Starter知道什么是合适的版本。

为什么Spring Boot找不到GroovySystem？

1 个答案: