Activiti 整合 Spring
Activiti 整合 Spring
创建 maven 项目，导入依赖
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
<slf4j.version>1.6.6</slf4j.version>
<log4j.version>1.2.12</log4j.version>
</properties>
<dependencies>
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-engine</artifactId>
<version>7.0.0.Beta1</version>
</dependency>
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-spring</artifactId>
<version>7.0.0.Beta1</version>
</dependency>
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-bpmn-model</artifactId>
<version>7.0.0.Beta1</version>
</dependency>
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-bpmn-converter</artifactId>
<version>7.0.0.Beta1</version>
</dependency>
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-json-converter</artifactId>
<version>7.0.0.Beta1</version>
</dependency>
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-bpmn-layout</artifactId>
<version>7.0.0.Beta1</version>
</dependency>
<dependency>
<groupId>org.activiti.cloud</groupId>
<artifactId>activiti-cloud-services-api</artifactId>
<version>7.0.0.Beta1</version>
</dependency>
<dependency>
<groupId>aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.5.4</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.40</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>5.0.7.RELEASE</version>
</dependency>
<!-- log start -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-nop</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- log end -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.5</version>
</dependency>
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
</dependency>
</dependencies>
创建配置文件 activiti-spring.xml（名称可以自定义），内容如下：
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd">
<!-- 数据源 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/activiti"/>
<property name="username" value="root"/>
<property name="password" value="654321"/>
<property name="maxActive" value="3"/>
<property name="maxIdle" value="1"/>
</bean>
<!-- 工作流引擎 -->
<bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration">
<!-- 引用数据源 -->
<property name="dataSource" ref="dataSource"/>
<!-- 使用spring事务管理器 -->
<property name="transactionManager" ref="transactionManager"/>
<!-- 数据库策略 -->
<property name="databaseSchemaUpdate" value="drop-create"/>
</bean>
<!-- 流程引擎 -->
<bean id="processEngine" class="org.activiti.spring.ProcessEngineFactoryBean">
<property name="processEngineConfiguration" ref="processEngineConfiguration"/>
</bean>
<!-- 资源服务service -->
<bean id="repositoryService" factory-bean="processEngine" factory-method="getRepositoryService"/>
<!-- 流程运行service -->
<bean id="runtimeService" factory-bean="processEngine" factory-method="getRuntimeService"/>
<!-- 任务管理service -->
<bean id="taskService" factory-bean="processEngine" factory-method="getTaskService"/>
<!-- 历史管理service -->
<bean id="historyService" factory-bean="processEngine" factory-method="getHistoryService"/>
<!-- 事务管理器 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 通知 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<!-- 传播行为 -->
<tx:method name="save*" propagation="REQUIRED"/>
<tx:method name="insert*" propagation="REQUIRED"/>
<tx:method name="delete*" propagation="REQUIRED"/>
<tx:method name="update*" propagation="REQUIRED"/>
<tx:method name="find*" propagation="SUPPORTS" read-only="true"/>
<tx:method name="get*" propagation="SUPPORTS" read-only="true"/>
</tx:attributes>
</tx:advice>
<!-- 切面，根据具体项目修改切点配置
<aop:config proxy-target-class="true">
<aop:advisor advice-ref="txAdvice"
pointcut="execution(*com.itheima.service.impl..(..))"/>
</aop:config>-->
</beans>
databaseSchemaUpdate 的取值：
- flase：默认值，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，将抛出异常（生产环境常用）
- true：activiti 会对数据库中所有表进行更新操作，如果表不存在，则自动创建。（开发时常用）
- create_drop：在 activiti 启动时创建表，在关闭时删除表（必须手动关闭引擎，才能删除表），（单元测试常用）
- drop-create：在 activiti 启动时删除原来的旧表，然后在创建新表（不需要手动关闭引擎）
测试整合
import org.activiti.engine.RepositoryService;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import javax.annotation.Resource;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:activiti-spring.xml")
public class activitiTest {
@Resource
private RepositoryService repositoryService;
@Test
public void test01(){
System.out.println("部署对象:"+repositoryService);
}
}
Activiti与Spring整合加载的过程：
- 加载 activiti-spring.xml 配置文件
- 加载 SpringProcessEngineConfiguration 对象，这个对象它需要依赖注入 dataSource 对象和 transactionManager 对象
- 加载 ProcessEngineFactoryBean 工厂来创建 ProcessEngine 对象，而 ProcessEngineFactoryBean 工厂又需要依赖注入 processEngineConfiguration 对象
- processEngine 对象来负责创建我们的 Service 对象，从而简化 Activiti 的开发过程
记得快乐
