Springboot2.x整合Activiti7入门案例_alfresco activiti 基础springboot

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前言

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一、Activiti7是什么？

简述：Activiti是基于Apache许可的开源BPM平台，创始人Tom Baeyens原是JBPM架构师，可以理解为与JBPM出自同一祖师爷。它提供了Eclipse插件，开发可以通过插件直接绘制业务流程图。基于Spring，ibatis等框架，并在此之上构建了非常清晰的开发框架。是由Alfresco软件发布的业务流程管理（BPM）框架，它是覆盖了业务流程管理、工作流、服务协作等领域的一个开源的、灵活的、易扩展的可执行流程语言框架。 本文基于Activiti7的Activiti Core，基于Spring Boot做简单学习总结。（Activiti最新版本向微服务这边靠齐了，并分Activiti Core与Activiti Cloud两块，Activiti Cloud还没研究）

二、使用步骤

1.引入相关依赖库

<properties>
	<java.version>1.8</java.version>
	<activiti.version>7.0.0.SR1</activiti.version>
</properties>
<dependencies>
	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-web</artifactId>
	</dependency>
	<dependency>
		<groupId>org.mybatis.spring.boot</groupId>
		<artifactId>mybatis-spring-boot-starter</artifactId>
		<version>1.3.2</version>
	</dependency>
	<!-- 阿里 druid 数据源 -->
	<dependency>
		<groupId>com.alibaba</groupId>
		<artifactId>druid</artifactId>
		<version>1.1.16</version>
	</dependency>
	<dependency>
		<groupId>com.alibaba</groupId>
		<artifactId>fastjson</artifactId>
		<version>1.2.54</version>
	</dependency>
	<dependency>
		<groupId>org.projectlombok</groupId>
		<artifactId>lombok</artifactId>
		<version>1.16.18</version>
		<scope>provided</scope>
	</dependency>
	<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
	<dependency>
		<groupId>mysql</groupId>
		<artifactId>mysql-connector-java</artifactId>
		<version>8.0.16</version>
	</dependency>
	<dependency>
		<groupId>com.hh</groupId>
		<artifactId>user-service-api</artifactId>
		<version>0.0.1-SNAPSHOT</version>
	</dependency>
	<dependency>
		<groupId>org.activiti</groupId>
		<artifactId>activiti-spring-boot-starter</artifactId>
		<version>${activiti.version}</version>
		<exclusions>
			<exclusion>
				<groupId>org.activiti.core.common</groupId>
				<artifactId>activiti-spring-identity</artifactId>
			</exclusion>
		</exclusions>
	</dependency>
	<dependency>
		<groupId>com.alibaba</groupId>
		<artifactId>easyexcel</artifactId>
		<version>2.1.6</version>
	</dependency>
	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-test</artifactId>
		<scope>test</scope>
		<exclusions>
			<exclusion>
				<groupId>org.junit.vintage</groupId>
				<artifactId>junit-vintage-engine</artifactId>
			</exclusion>
		</exclusions>
	</dependency>
	<dependency>
		<groupId>com.google.guava</groupId>
		<artifactId>guava</artifactId>
		<version>20.0</version>
		<scope>compile</scope>
	</dependency>
</dependencies>
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2.编写Activiti相关配置文件

1.将数据源交给Activiti进行管理

package com.hh.userserviceactiviti.config;

import org.activiti.engine.*;
import org.activiti.engine.impl.cfg.StandaloneProcessEngineConfiguration;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;

import javax.sql.DataSource;

@Configuration
public class ActivitiConfig {

    @Autowired
    private DataSource dataSource;

    @Bean
    public StandaloneProcessEngineConfiguration standaloneProcessEngineConfiguration() {
        StandaloneProcessEngineConfiguration processEngineConfiguration = new StandaloneProcessEngineConfiguration();
        processEngineConfiguration.setDataSource(dataSource);
        processEngineConfiguration.setDatabaseSchemaUpdate(ProcessEngineConfiguration.DB_SCHEMA_UPDATE_TRUE);
        processEngineConfiguration.setAsyncExecutorActivate(false);
        return processEngineConfiguration;
    }

    @Bean
    @Primary
    public ProcessEngine buildProcessEngine() {
        return standaloneProcessEngineConfiguration().buildProcessEngine();
    }

    @Bean
    public RepositoryService repositoryService() {
        return buildProcessEngine().getRepositoryService();
    }

    @Bean
    public RuntimeService runtimeService() {
        return buildProcessEngine().getRuntimeService();
    }

    @Bean
    public TaskService taskService() {
        return buildProcessEngine().getTaskService();
    }

    @Bean
    public HistoryService historyService() {
        return buildProcessEngine().getHistoryService();
    }
}
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2.设置流程配置

package com.hh.userserviceactiviti.config;

import com.google.common.collect.ImmutableList;
import org.activiti.api.runtime.shared.identity.UserGroupManager;
import org.activiti.engine.impl.history.HistoryLevel;
import org.activiti.spring.SpringAsyncExecutor;
import org.activiti.spring.SpringProcessEngineConfiguration;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
import org.springframework.transaction.PlatformTransactionManager;

import javax.sql.DataSource;
import java.util.List;

@Configuration
public class WorkFlowConfig {

    @Autowired
    private DataSource dataSource;

	//高版本需要手动填写，所以需要显示声明，并且交个Spring维护和管理。
    @Primary
    @Bean
    public UserGroupManager userGroupManager() {
        return new UserGroupManager() {
            @Override
            public List<String> getUserGroups(String s) {
                return ImmutableList.of("指定用户归属组");
            }

            @Override
            public List<String> getUserRoles(String s) {
                return null;
            }

            @Override
            public List<String> getGroups() {
                return null;
            }

            @Override
            public List<String> getUsers() {
                return null;
            }
        };
    }

    @Bean
    public SpringProcessEngineConfiguration springProcessEngineConfiguration(PlatformTransactionManager transactionManager) {
        SpringProcessEngineConfiguration springProcessEngineConfiguration = new SpringProcessEngineConfiguration();
        springProcessEngineConfiguration.setDataSource(dataSource);
        springProcessEngineConfiguration.setTransactionManager(transactionManager);
        SpringAsyncExecutor springAsyncExecutor = new SpringAsyncExecutor();
        springAsyncExecutor.setTaskExecutor(threadPoolTaskExecutor());
        springProcessEngineConfiguration.setAsyncExecutor(springAsyncExecutor);
        springProcessEngineConfiguration.setDatabaseSchemaUpdate("true");
        springProcessEngineConfiguration.setUserGroupManager(userGroupManager());
        springProcessEngineConfiguration.setHistoryLevel(HistoryLevel.FULL);
        springProcessEngineConfiguration.setDbHistoryUsed(true);
        return springProcessEngineConfiguration;
    }

    @Primary
    @Bean
    public ThreadPoolTaskExecutor threadPoolTaskExecutor() {
        ThreadPoolTaskExecutor threadPoolTaskExecutor = new ThreadPoolTaskExecutor();
        threadPoolTaskExecutor.setCorePoolSize(10);
        threadPoolTaskExecutor.setMaxPoolSize(30);
        threadPoolTaskExecutor.setKeepAliveSeconds(500);
        threadPoolTaskExecutor.setQueueCapacity(500);
        threadPoolTaskExecutor.initialize();
        return threadPoolTaskExecutor;
    }

}

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3.YML配置文件添加相关配置

server:
  port: 7777

spring:
  application:
    name: user-service-activiti
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    driver-class-name: com.mysql.cj.jdbc.Driver //我这边数据库的驱动是8.0以上的。
    username: root
    password: root
    url: jdbc:mysql://数据库ip地址:3306/activiti?characterEncoding=utf8&useSSL=false&serverTimezone=UTC&rewriteBatchedStatements=true&allowPublicKeyRetrieval=true
  activiti:
    database-schema-update: true  // 表示能够自动创建数据库中的表
    history-level: full  // 表示创建所有的表
    db-history-used: true  //使用记录表

mybatis:
  mapper-locations: mappers/*.xml

logging:
  level:
    com.ascendant: debug
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4.启动项目后会出现25张表

1.看到下面表自动生产后，表示整合成功了。

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总结

人生物语：对人生正确的态度是：执著地对待，紧紧地把握，但不能抓得过死，松不开手。