activiti(1):spring集成activiti

在原有的ssm框架中集成activiti，只需添加activiti依赖和向spring的配置文件中引入activiti的配置文件即可：

1 pom依赖;5.20.0版本

<dependency><groupId>org.activiti</groupId><artifactId>activiti-engine</artifactId><version>5.20.0</version></dependency><dependency><groupId>org.activiti</groupId><artifactId>activiti-spring</artifactId><version>5.20.0</version></dependency>

2 配置文件的引入

<import resource="activiti-contenxt.xml" />

3 activiti配置文件

<bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration"><property name="dataSource" ref="dataSource"></property><property name="transactionManager" ref="txManager"></property><property name="databaseSchemaUpdate" value="true"></property><property name="deploymentResources"><list><value>classpath*:/activiti/*</value></list></property></bean><bean id="processEngine" class="org.activiti.spring.ProcessEngineFactoryBean"><property name="processEngineConfiguration" ref="processEngineConfiguration"></property></bean><bean id="repositoryService" factory-bean="processEngine"factory-method="getRepositoryService"></bean><bean id="runtimeService" factory-bean="processEngine"factory-method="getRuntimeService" /><bean id="formService" factory-bean="processEngine"factory-method="getFormService" /><bean id="identityService" factory-bean="processEngine"factory-method="getIdentityService" /><bean id="taskService" factory-bean="processEngine"factory-method="getTaskService" /><bean id="historyService" factory-bean="processEngine"factory-method="getHistoryService" /><bean id="managementService" factory-bean="processEngine"factory-method="getManagementService" />

4 activiti配置文件解读

4.1 processEngineConfiguration 将activiti的引擎配置到spring容器中

4.2 dataSource 使用spring管理的数据源

4.3 transactionManager 使用spring管理的事务管理器

4.4 databaseSchemaUpdate 数据库脚本更新策略

false：什么都不做

true：表不存在时，自动创建或者升级

create-drop：创建引擎时初始化表，销毁引擎时删除表

4.5 deploymentResources：创建引擎时自动部署指定流程文件

4.6 其他bean：activiti核心对象配置到spring容器中