Activiti6.0实战-Activiti与SpringBoot集成(2)

在这里插入图片描述

Activiti6.0实战-目录 一整套哦

目录

    • 相关版本
    • pom.xml
    • yml配置文件
    • 启动类
    • 扩展

相关版本

spring-boot:2.4.0

activiti-spring-boot-starter-basic:6.0.0

pom.xml

<parent>
        <groupId>org.springframework.bootgroupId>
        <artifactId>spring-boot-starter-parentartifactId>
        <version>2.4.0version>
        <relativePath/> 
    parent>

    <properties>
        <java.version>1.8java.version>
    properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-webartifactId>
        dependency>

        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-testartifactId>
            <scope>testscope>
        dependency>
        <dependency>
            <groupId>org.activitigroupId>
            <artifactId>activiti-spring-boot-starter-basicartifactId>
            <version>6.0.0version>
        dependency>

        <dependency>
            <groupId>mysqlgroupId>
            <artifactId>mysql-connector-javaartifactId>
        dependency>

    dependencies>

yml配置文件

spring:
  datasource:
    username: root
    password: 123456
    url: jdbc:m如下ysql://localhost:3306/workflow?serverTimezone==GMT%2B8&characterEncoding=utf8&useSSL=false
  activiti:
    # 自动部署验证设置:true-开启(默认)、false-关闭
    check-process-definitions: false
    #配置项可以设置流程引擎启动和关闭时数据库执行的策略
    database-schema-update: true
    #保存历史数据级别设置为full最高级别,便于历史数据的追溯
    history-level: full

spring.activiti.database-schema-update

配置项可以设置流程引擎启动和关闭时数据库执行的策略,可以选择四种模式

  • false:false为默认值,设置为该值后,Activiti在启动时,会对比数据库表中保存的版本,如果没有表或者版本不匹配时,将在启动时抛出异常。
  • true:设置为该值后,Activiti会对数据库中所有的表进行更新,如果表不存在,则Activiti会自动创建。
  • create-drop:Activiti启动时,会执行数据库表的创建操作,在Activiti关闭时,执行数据库表的删除操作。

注意

第一次启动程序后,数据库会自动生成关于activiti28张表,可以关闭程序,修改配置项

#每次应用启动不检查Activiti数据表是否存在及版本号是否匹配,提升应用启动速度 spring.activiti.database-schema-update=false

spring.activiti.history-level

对于历史数据,保存到何种粒度,Activiti提供了history-level属性对其进行配置。history-level属性有点像log4j的日志输出级别,该属性有以下四个值:

  • none:不保存任何的历史数据,因此,在流程执行过程中,这是最高效的。
  • activity:级别高于none,保存流程实例与流程行为,其他数据不保存。
  • audit:除activity级别会保存的数据外,还会保存全部的流程任务及其属性。audit为history的默认值。
  • full:保存历史数据的最高级别,除了会保存audit级别的数据外,还会保存其他全部流程相关的细节数据,包括一些流程参数等。

启动类

import org.activiti.spring.boot.SecurityAutoConfiguration;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication(exclude = SecurityAutoConfiguration.class)
public class WorkflowApplication {

    public static void main(String[] args) {
        SpringApplication.run(WorkflowApplication.class, args);
    }

}

成功之后,数据库会生成28张表

Activiti6.0实战-Activiti与SpringBoot集成(2)_第1张图片

扩展

错误:Caused by: java.lang.ClassNotFoundException: org.springframework.boot.autoconfigure.security.SecurityAutoConfiguration

java.lang.IllegalArgumentException: Could not find class [org.springframework.boot.autoconfigure.security.SecurityAutoConfiguration]
	at org.springframework.util.ClassUtils.resolveClassName(ClassUtils.java:334) ~[spring-core-5.3.1.jar:5.3.1]
	at org.springframework.core.annotation.TypeMappedAnnotation.adapt(TypeMappedAnnotation.java:446) ~[spring-core-5.3.1.jar:5.3.1]
	at org.springframework.core.annotation.TypeMappedAnnotation.getValue(TypeMappedAnnotation.java:369) ~[spring-core-5.3.1.jar:5.3.1]
	at org.springframework.core.annotation.TypeMappedAnnotation.asMap(TypeMappedAnnotation.java:284) ~[spring-core-5.3.1.jar:5.3.1]
	at org.springframework.core.annotation.AbstractMergedAnnotation.asAnnotationAttributes(AbstractMergedAnnotation.java:193) ~[spring-core-5.3.1.jar:5.3.1]
	at org.springframework.core.type.AnnotatedTypeMetadata.getAnnotationAttributes(AnnotatedTypeMetadata.java:106) ~[spring-core-5.3.1.jar:5.3.1]
	at org.springframework.context.annotation.AnnotationConfigUtils.attributesFor(AnnotationConfigUtils.java:285) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.context.annotation.AnnotationBeanNameGenerator.determineBeanNameFromAnnotation(AnnotationBeanNameGenerator.java:102) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.context.annotation.AnnotationBeanNameGenerator.generateBeanName(AnnotationBeanNameGenerator.java:81) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.registerBeanDefinitionForImportedConfigurationClass(ConfigurationClassBeanDefinitionReader.java:169) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass(ConfigurationClassBeanDefinitionReader.java:150) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitions(ConfigurationClassBeanDefinitionReader.java:129) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:348) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:252) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:285) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:99) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:751) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:569) ~[spring-context-5.3.1.jar:5.3.1]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144) ~[spring-boot-2.4.0.jar:2.4.0]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767) [spring-boot-2.4.0.jar:2.4.0]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-2.4.0.jar:2.4.0]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) [spring-boot-2.4.0.jar:2.4.0]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) [spring-boot-2.4.0.jar:2.4.0]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1309) [spring-boot-2.4.0.jar:2.4.0]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1298) [spring-boot-2.4.0.jar:2.4.0]
	at com.laker.workflow.WorkflowApplication.main(WorkflowApplication.java:10) [classes/:na]
Caused by: java.lang.ClassNotFoundException: org.springframework.boot.autoconfigure.security.SecurityAutoConfiguration
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_102]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_102]
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) ~[na:1.8.0_102]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_102]
	at java.lang.Class.forName0(Native Method) ~[na:1.8.0_102]
	at java.lang.Class.forName(Class.java:348) ~[na:1.8.0_102]
	at org.springframework.util.ClassUtils.forName(ClassUtils.java:284) ~[spring-core-5.3.1.jar:5.3.1]
	at org.springframework.util.ClassUtils.resolveClassName(ClassUtils.java:324) ~[spring-core-5.3.1.jar:5.3.1]
	... 25 common frames omitted

springboot2.0不能与activiti6.0.0直接集成使用,因为activiti6.0.0出来的时候springboot2.0还没有出来,activiti6.0.0 支持springboot1.2.6以上,2.0.0以下的版本。

解决:

  • 1:将springboot2.0降级为原来的1.X版本

  • 2:在springboot启动类上添加 (推荐)

    @SpringBootApplication(exclude = SecurityAutoConfiguration.class)
    

    参考:

  • Activiti实战

  • Activiti权威指南

  • 疯狂工作流讲义

  • https://github.com/Activiti/activiti-examples

  • https://github.com/henryyan/kft-activiti-demo


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