如何解決spring boot2集成activiti6踩過的坑

這篇文章主要介紹如何解決spring boot2集成activiti6踩過的坑，文中介紹的非常詳細，具有一定的參考價值，感興趣的小伙伴們一定要看完！

1.activiti中的mybaitis版本沖突 錯誤信息

Caused by: java.lang.NoSuchFieldError: INSTANCE
at com.baomidou.mybatisplus.MybatisMapperAnnotationBuilder.parseStatement(MybatisMapperAnnotationBuilder.java:332) ~[mybatis-plus-core-2.3.jar:?]
at com.baomidou.mybatisplus.MybatisMapperAnnotationBuilder.parse(MybatisMapperAnnotationBuilder.java:153) ~[mybatis-plus-core-2.3.jar:?]
at com.baomidou.mybatisplus.MybatisMapperRegistry.addMapper(MybatisMapperRegistry.java:86) ~[mybatis-plus-core-2.3.jar:?]
at com.baomidou.mybatisplus.MybatisConfiguration.addMapper(MybatisConfiguration.java:101) ~[mybatis-plus-core-2.3.jar:?]
at org.apache.ibatis.builder.xml.XMLMapperBuilder.bindMapperForNamespace(XMLMapperBuilder.java:408) ~[mybatis-3.4.2.jar:3.4.2]
at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:94) ~[mybatis-3.4.2.jar:3.4.2]
at com.baomidou.mybatisplus.spring.MybatisSqlSessionFactoryBean.buildSqlSessionFactory(MybatisSqlSessionFactoryBean.java:583) ~[mybatis-plus-core-2.3.jar:?]

經查,是因為我用mybatis plus,要求用mybatis3.4.6,而activiti用的是mybatis3.4.2,兩邊有沖突,直接排除activitiv那個即好：

<dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-spring-boot-starter-basic</artifactId>
            <version>6.0.0</version>
            <exclusions>
                <exclusion>
                    <groupId>org.mybatis</groupId>
                    <artifactId>mybatis</artifactId>
                </exclusion>
            </exclusions>
 </dependency>

2.activiti中的SecurityAutoConfiguration沖突啟動項目

報如下錯

Caused by: java.lang.ArrayStoreException: sun.reflect.annotation.TypeNotPresentExceptionProxy
at sun.reflect.annotation.AnnotationParser.parseClassArray(AnnotationParser.java:724) ~[?:1.8.0_181]
at sun.reflect.annotation.AnnotationParser.parseArray(AnnotationParser.java:531) ~[?:1.8.0_181]
at sun.reflect.annotation.AnnotationParser.parseMemberValue(AnnotationParser.java:355) ~[?:1.8.0_181]
at sun.reflect.annotation.AnnotationParser.parseAnnotation2(AnnotationParser.java:286) ~[?:1.8.0_181]
at sun.reflect.annotation.AnnotationParser.parseAnnotations2(AnnotationParser.java:120) ~[?:1.8.0_181]
at sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParser.java:72) ~[?:1.8.0_181]
at java.lang.Class.createAnnotationData(Class.java:3521) ~[?:1.8.0_181]
at java.lang.Class.annotationData(Class.java:3510) ~[?:1.8.0_181]
at java.lang.Class.createAnnotationData(Class.java:3526) ~[?:1.8.0_181]
at java.lang.Class.annotationData(Class.java:3510) ~[?:1.8.0_181]
at java.lang.Class.getAnnotation(Class.java:3415) ~[?:1.8.0_181]

經查，是類SecurityAutoConfiguration有沖突,在啟動時排除該類即可

@Slf4j
@EnableSwagger2
@SpringBootApplication(exclude = {SecurityAutoConfiguration.class})
//@EnableAutoConfiguration 這個需要注釋掉不然上邊的排除操作無效
public class JeecgApplication {

  public static void main(String[] args) throws UnknownHostException {

3.activiti中自動搜索流程文件的check-process-definitions問題

項目啟動時報如下錯誤

activiti中自動搜索流程文件的check-process-definitions問題

項目啟動時報如下錯誤

Caused by: java.io.FileNotFoundException: class path resource [processes/] cannot be resolved to URL because it does not exist
at org.springframework.core.io.ClassPathResource.getURL(ClassPathResource.java:195) ~[spring-core-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.core.io.support.PathMatchingResourcePatternResolver.findPathMatchingResources(PathMatchingResourceP

意思是說,在目錄processes/尋找流程文件,這個只要配置一下check-process-definitions即好

spring:  
    activiti:
      database-schema-update: true
      check-process-definitions: false

springboot2 集成activiti6 問題集錦

1.反射分析某個類文件的注解元數據時導致的失敗

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'requestMappingHandlerMapping' defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class]: Invocation of init method failed; nested exception is java.lang.ArrayStoreException: sun.reflect.annotation.TypeNotPresentExceptionProxy
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1708) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:581) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:503) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:760) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.__refresh(AbstractApplicationContext.java:550) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.jrLockAndRefresh(AbstractApplicationContext.java:40002) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:41008) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:395) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at com.example.activititest.ActivitiTestApplication.main(ActivitiTestApplication.java:13) [classes/:na]
Caused by: java.lang.ArrayStoreException: sun.reflect.annotation.TypeNotPresentExceptionProxy
at sun.reflect.annotation.AnnotationParser.parseClassArray(AnnotationParser.java:724) ~[na:1.8.0_161]
at sun.reflect.annotation.AnnotationParser.parseArray(AnnotationParser.java:531) ~[na:1.8.0_161]
at sun.reflect.annotation.AnnotationParser.parseMemberValue(AnnotationParser.java:355) ~[na:1.8.0_161]
at sun.reflect.annotation.AnnotationParser.parseAnnotation2(AnnotationParser.java:286) ~[na:1.8.0_161]
at sun.reflect.annotation.AnnotationParser.parseAnnotations2(AnnotationParser.java:120) ~[na:1.8.0_161]
at sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParser.java:72) ~[na:1.8.0_161]
at java.lang.Class.createAnnotationData(Class.java:3521) ~[na:1.8.0_161]
at java.lang.Class.annotationData(Class.java:3510) ~[na:1.8.0_161]
at java.lang.Class.createAnnotationData(Class.java:3526) ~[na:1.8.0_161]
at java.lang.Class.annotationData(Class.java:3510) ~[na:1.8.0_161]
at java.lang.Class.getAnnotation(Class.java:3415) ~[na:1.8.0_161]
at java.lang.reflect.AnnotatedElement.isAnnotationPresent(AnnotatedElement.java:258) ~[na:1.8.0_161]
at java.lang.Class.isAnnotationPresent(Class.java:3425) ~[na:1.8.0_161]
at org.springframework.core.annotation.AnnotatedElementUtils.hasAnnotation(AnnotatedElementUtils.java:573) ~[spring-core-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping.isHandler(RequestMappingHandlerMapping.java:177) ~[spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.initHandlerMethods(AbstractHandlerMethodMapping.java:217) ~[spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.afterPropertiesSet(AbstractHandlerMethodMapping.java:188) ~[spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping.afterPropertiesSet(RequestMappingHandlerMapping.java:129) ~[spring-webmvc-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1767) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1704) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
... 18 common frames omitted

解決：在啟動類上加 (exclude = SecurityAutoConfiguration.class) ，去除SecurityAutoConfiguration

@SpringBootApplication(exclude = SecurityAutoConfiguration.class)
@MapperScan(basePackages = "com.example.test.dao")
public class ActivitiTestApplication {
    public static void main(String[] args) {
        SpringApplication.run(ActivitiTestApplication.class, args);
    }
}

2.activiti默認自動部署驗證設置問題

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'springProcessEngineConfiguration' defined in class path resource [org/activiti/spring/boot/DataSourceProcessEngineAutoConfiguration$DataSourceProcessEngineConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.activiti.spring.SpringProcessEngineConfiguration]: Factory method 'springProcessEngineConfiguration' threw exception; nested exception is java.io.FileNotFoundException: class path resource [processes/] cannot be resolved to URL because it does not exist
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:590) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1256) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1105) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:543) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:503) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:760) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.__refresh(AbstractApplicationContext.java:550) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.jrLockAndRefresh(AbstractApplicationContext.java:40002) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:41008) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:395) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243) [spring-boot-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at com.example.activititest.ActivitiTestApplication.main(ActivitiTestApplication.java:13) [classes/:na]
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.activiti.spring.SpringProcessEngineConfiguration]: Factory method 'springProcessEngineConfiguration' threw exception; nested exception is java.io.FileNotFoundException: class path resource [processes/] cannot be resolved to URL because it does not exist
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:582) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
... 20 common frames omitted
Caused by: java.io.FileNotFoundException: class path resource [processes/] cannot be resolved to URL because it does not exist
at org.springframework.core.io.ClassPathResource.getURL(ClassPathResource.java:195) ~[spring-core-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.core.io.support.PathMatchingResourcePatternResolver.findPathMatchingResources(PathMatchingResourcePatternResolver.java:495) ~[spring-core-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.core.io.support.PathMatchingResourcePatternResolver.getResources(PathMatchingResourcePatternResolver.java:296) ~[spring-core-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.boot.devtools.restart.ClassLoaderFilesResourcePatternResolver.getResources(ClassLoaderFilesResourcePatternResolver.java:115) ~[spring-boot-devtools-2.0.3.RELEASE.jar:2.0.3.RELEASE]
at org.springframework.context.support.GenericApplicationContext.getResources(GenericApplicationContext.java:231) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.activiti.spring.boot.AbstractProcessEngineConfiguration.discoverProcessDefinitionResources(AbstractProcessEngineConfiguration.java:79) ~[activiti-spring-boot-starter-basic-6.0.0.jar:na]
at org.activiti.spring.boot.AbstractProcessEngineAutoConfiguration.baseSpringProcessEngineConfiguration(AbstractProcessEngineAutoConfiguration.java:74) ~[activiti-spring-boot-starter-basic-6.0.0.jar:na]
at org.activiti.spring.boot.DataSourceProcessEngineAutoConfiguration$DataSourceProcessEngineConfiguration.springProcessEngineConfiguration(DataSourceProcessEngineAutoConfiguration.java:57) ~[activiti-spring-boot-starter-basic-6.0.0.jar:na]
at org.activiti.spring.boot.DataSourceProcessEngineAutoConfiguration$DataSourceProcessEngineConfiguration$$EnhancerBySpringCGLIB$$7a8e3743.CGLIB$springProcessEngineConfiguration$1(<generated>) ~[activiti-spring-boot-starter-basic-6.0.0.jar:na]
at org.activiti.spring.boot.DataSourceProcessEngineAutoConfiguration$DataSourceProcessEngineConfiguration$$EnhancerBySpringCGLIB$$7a8e3743$$FastClassBySpringCGLIB$$161a3fa0.invoke(<generated>) ~[activiti-spring-boot-starter-basic-6.0.0.jar:na]
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) ~[spring-core-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:361) ~[spring-context-5.0.7.RELEASE.jar:5.0.7.RELEASE]
at org.activiti.spring.boot.DataSourceProcessEngineAutoConfiguration$DataSourceProcessEngineConfiguration$$EnhancerBySpringCGLIB$$7a8e3743.springProcessEngineConfiguration(<generated>) ~[activiti-spring-boot-starter-basic-6.0.0.jar:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_161]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_161]
at sun.reflect.DelegatingMethodAccessorImpl.__invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_161]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:45009) ~[na:1.8.0_161]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:45012) ~[na:1.8.0_161]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_161]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.0.7.RELEASE.jar:5.0.7.RELEASE]
... 21 common frames omitted

解決：在application.properties文件中，修改默認自動部署驗證設置為false

spring.activiti.check-process-definitions=false

3.mysql 引入包過高

###The error may exist in org/activiti/db/mapping/entity/Property.xml
###The error may involve org.activiti.engine.impl.persistence.entity.PropertyEntityImpl.selectProperty-Inline
###The error occurred while setting parameters
###SQL: select * from ACT_GE_PROPERTY where NAME_ = ?

解決方法：修改mysql-connector-java版本

 <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.43</version>
            <!--<version>8.0.15</version>-->
        </dependency>

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