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Activit fragmented deadly pit
2022-07-06 17:00:00 【Motorcycle loving program ape】
Keng Keng Wawa has walked an extraordinary road
One 、 Configuration integration
1.avtivit7 rely on Springboot And Spring Different
2.Spring To configure activiti7 The configuration file
<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">
<!-- data source -->
<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="123"/>
<property name="maxActive" value="3"/>
<property name="maxIdle" value="1"/>
</bean>
<!-- Workflow engine configuration bean -->
<bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration">
<!-- data source -->
<property name="dataSource" ref="dataSource"/>
<!-- Use spring Transaction manager -->
<property name="transactionManager" ref="transactionManager"/>
<!-- Database policy -->
<property name="databaseSchemaUpdate" value="true"/>
</bean>
<!--
databaseSchemaUpdate Value content of :
flase: The default value is .activiti When it starts , Compare versions saved in database tables , If there is no table or version mismatch , An exception will be thrown .( The production environment is often used )
true: activiti All tables in the database will be updated . If the watch doesn't exist , Automatically create .( It is often used in development )
create_drop: stay activiti Create table at startup , Delete table on close ( You have to shut down the engine manually , To delete the table ).( Unit test common )
drop-create: stay activiti Delete old tables on startup , Then create a new table ( There's no need to manually shut down the engine ).
-->
<!-- Process engine -->
<bean id="processEngine" class="org.activiti.spring.ProcessEngineFactoryBean">
<property name="processEngineConfiguration" ref="processEngineConfiguration"/>
</bean>
<!-- Resource service service -->
<bean id="repositoryService" factory-bean="processEngine" factory-method="getRepositoryService"/>
<!-- Process operation service -->
<bean id="runtimeService" factory-bean="processEngine" factory-method="getRuntimeService"/>
<!-- task management service -->
<bean id="taskService" factory-bean="processEngine" factory-method="getTaskService"/>
<!-- History management service -->
<bean id="historyService" factory-bean="processEngine" factory-method="getHistoryService"/>
<!-- Transaction manager -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- notice -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<!-- Communication behavior -->
<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>
<!-- section , Modify the tangent point configuration according to the specific project
<aop:config proxy-target-class="true">
<aop:advisor advice-ref="txAdvice"
pointcut="execution(*com.itheima.service.impl..(..))"/>
</aop:config>-->
</beans>
3.web.xml Scan to profile
4. In the increase of database connection nullCatalogMeansCurrent=true that will do .
Two 、 Database version
see pom.xml mysql edition
View local mysql Version modification configuration
mysql -uroot -p
Input password
3、 ... and 、 example bug
org.activiti.engine.ActivitiObjectNotFoundException: no processes deployed with key ‘process‘
solve :
activiti The template of must be bpmn20.xml perhaps bpmn ending
Start process instance key For deployment flowchart process Label under IDVisit the page :java.lang.ClassCastException: de.odysseus.el.ExpressionFactoryImpl cannot be cast to javax.el.ExpressionFactory
Content error :
DEBUG [org.springframework.web.servlet.DispatcherServlet] - Error rendering view [org.springframework.web.servlet.view.JstlView: name ‘adMatching’; URL [/WEB-INF/page/adMatching.jsp]] in DispatcherServlet with name ‘SpringMvc’
org.apache.jasper.JasperException: Unable to compile class for JSP
activiti6 solve : With the project el expression jar Filter out the problem of package conflict jar It is good to pack
<exclusions>
<exclusion>
<groupId>de.odysseus.juel</groupId>
<artifactId>juel-api</artifactId>
</exclusion>
</exclusions>
activiti7 solve : With the project el expression jar Filter out the problem of package conflict jar It is good to pack
<exclusions>
<exclusion>
<groupId>de.odysseus.juel</groupId>
<artifactId>juel-api</artifactId>
</exclusion>
</exclusions>
<exclusions>
<exclusion>
<groupId>javax.el</groupId>
<artifactId>el-api</artifactId>
</exclusion>
</exclusions>
- Configure multiple data sources
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