activiti7的错误报告

Question

有没有兄弟知道这个报错原因是什么？版本依赖还是配置信息问题？

ERROR org.springframework.boot.SpringApplication-Application run failed
java.lang.IllegalStateException: Error processing condition on org.activiti.spring.boot.ProcessEngineAutoConfiguration.springProcessEngineConfiguration
    at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:60)
    at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:108)
    at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForBeanMethod(ConfigurationClassBeanDefinitionReader.java:193)
    at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass(ConfigurationClassBeanDefinitionReader.java:153)
    at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitions(ConfigurationClassBeanDefinitionReader.java:129)
    at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:343)
    at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:247)
    at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:311)
    at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:112)
    at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:746)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:564)
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:734)
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:308)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1306)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1295)
    at com.zzyl.ZzylApplication.main(ZzylApplication.java:12)
Caused by: java.lang.IllegalStateException: @ConditionalOnMissingBean did not specify a bean using type, name or annotation and the attempt to deduce the bean's type failed
    at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.validate(OnBeanCondition.java:494)
    at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.<init>(OnBeanCondition.java:443)
    at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getMatchOutcome(OnBeanCondition.java:154)
    at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:47)
    ... 17 common frames omitted
Caused by: org.springframework.boot.autoconfigure.condition.OnBeanCondition$BeanTypeDeductionException: Failed to deduce bean type for org.activiti.spring.boot.ProcessEngineAutoConfiguration.springProcessEngineConfiguration
    at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.deducedBeanTypeForBeanMethod(OnBeanCondition.java:524)
    at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.deducedBeanType(OnBeanCondition.java:513)
    at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.<init>(OnBeanCondition.java:436)
    ... 19 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.activiti.spring.SpringProcessEngineConfiguration
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
    at java.base/java.lang.Class.forName0(Native Method)
    at java.base/java.lang.Class.forName(Class.java:495)
    at java.base/java.lang.Class.forName(Class.java:474)
    at org.springframework.boot.autoconfigure.condition.FilteringSpringBootCondition.resolve(FilteringSpringBootCondition.java:108)
    at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.getReturnType(OnBeanCondition.java:532)
    at org.springframework.boot.autoconfigure.condition.OnBeanCondition$Spec.deducedBeanTypeForBeanMethod(OnBeanCondition.java:520)
    ... 21 common frames omitted

Answer 1

以下内容由AIGC及阿里嘎多学长共同生成、有用望采纳：

---

根据你提供的错误报告和需要解决的问题，我们可以逐步分析并提出解决方案。以下是针对你提出的具体问题的详细分析和建议：

1. 错误原因分析

错误报告中的关键信息是：

• java.lang.IllegalStateException: Error processing condition on org.activiti.spring.boot.ProcessEngineAutoConfiguration.springProcessEngineConfiguration
• java.lang.ClassNotFoundException: org.activiti.spring.SpringProcessEngineConfiguration

这表明问题主要与 Spring Boot 的自动配置和类加载有关。

2. 解决 IllegalStateException

这个异常通常是由于 Spring Boot 在自动配置过程中遇到了问题。具体来说，是因为 @ConditionalOnMissingBean 条件未能正确识别所需的 Bean 类型。

解决方案：

• 确保 org.activiti.spring.SpringProcessEngineConfiguration 类存在并被正确加载。
• 检查是否有其他配置或代码干扰了 Spring Boot 的自动配置。

3. 处理 ConditionalOnMissingBean 问题

@ConditionalOnMissingBean 条件未能正确识别 Bean 类型，这通常是因为类加载器未能找到相应的类。

解决方案：

• 确保 org.activiti.spring.SpringProcessEngineConfiguration 类在类路径中。
• 检查是否有依赖冲突或不兼容的依赖版本。

4. 解决 ClassNotFoundException

这个异常表明 org.activiti.spring.SpringProcessEngineConfiguration 类未被加载。

解决方案：

• 检查 Maven 或 Gradle 依赖文件，确保 Activiti 相关的依赖已正确添加。
• 确保依赖的版本与 Spring Boot 版本兼容。

具体操作步骤

1. 检查依赖：

   • 对于 Maven 项目，检查 pom.xml 文件，确保 Activiti 相关的依赖如下：

     <dependency>
         <groupId>org.activiti</groupId>
         <artifactId>activiti-spring-boot-starter-basic</artifactId>
         <version>7.x.x</version>
     </dependency>
     

   • 对于 Gradle 项目，检查 build.gradle 文件，确保 Activiti 相关的依赖如下：

     implementation 'org.activiti:activiti-spring-boot-starter-basic:7.x.x'
     

2. 配置检查：

   • 检查 application.properties 或 application.yml 文件，确保 Activiti 相关的配置项如下：

     spring.activiti.process.definition-location-prefix=classpath*:/processes/
     spring.activiti.process.definition-location-suffixes=.bpmn,.png
     spring.activiti.database-schema-update=true
     

3. 代码审查：

   • 检查 ZzylApplication.java 中是否有任何配置错误或遗漏。确保没有遗漏或错误配置。

4. 类加载问题解决：

   • 确保 org.activiti.spring.SpringProcessEngineConfiguration 类在类路径中。如果类缺失，可能需要检查是否正确添加了 Activiti 相关的依赖库。
   • 检查是否有其他类加载器问题，例如使用了错误的类加载器或类路径配置错误。

通过以上步骤，你应该能够解决 Activiti 7 在 Spring Boot 应用中的错误报告。如果问题依然存在，可能需要进一步检查项目的具体配置和代码实现。