SSH+activity工作流集成开发「建议收藏」

大家好，又见面了，我是你们的朋友全栈君。

一直没有更新最近，把以前的资料整理下。
SSH的集成配置清查看上一篇

struts-2.3.24+spring-framework-4.1.6.RELEASE+hibernate-release-4.3.10.Final
集成开发

导入activity工作流需要的jar
activiti-bpmn-converter-5.16.4.jar
activiti-bpmn-layout-5.16.4.jar
activiti-bpmn-model-5.16.4.jar
activiti-camel-5.16.4.jar
activiti-cdi.jar
activiti-common-rest-5.16.4.jar
activiti-crystalball-5.16.4.jar
activiti-cxf-5.16.4.jar
activiti-diagram-rest-5.16.4.jar
activiti-engine-5.16.4.jar
activiti-explorer-5.16.4.jar
activiti-image-generator-5.16.4.jar
activiti-json-converter-5.16.4.jar
activiti-ldap-5.16.4.jar
activiti-modeler-5.16.4.jar
activiti-mule-5.16.4.jar
activiti-osgi-5.16.4.jar
activiti-process-validation-5.16.4.jar
activiti-simple-workflow-5.16.4.jar
activiti-rest-5.16.4.jar
activiti-spring-5.16.4.jar

添加配置文件：新建activiti.cfg.xml文件

<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" 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 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
    <!-- spring负责创建流程引擎的配置文件 -->
    <bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration">
        <!-- 数据源 -->
        <property name="dataSource" ref="dataSource" />
        <!-- 配置事务管理器，统一事务 -->
        <property name="transactionManager" ref="txManager" />
        <!-- 设置建表策略，如果没有表，自动创建表 -->
        <property name="databaseSchemaUpdate" value="true" />
    </bean>
    <!-- 创建流程引擎对象 -->
    <bean id="processEngine" class="org.activiti.spring.ProcessEngineFactoryBean">
        <property name="processEngineConfiguration" ref="processEngineConfiguration" />
    </bean>

    <!-- 相当于下面的代码 RepositoryServicie repositoryService = processEngine.getRepositoryService(); RuntimeServicie repositoryService = processEngine.getRuntimeServicie(); TaskServicie taskServicie = processEngine.getTaskServicie(); HistoryServicie historyServicie = processEngine.getHistoryServicie(); -->
    <!-- 由流程引擎对象，提供的方法，创建项目中使用的Activiti工作流的Service -->
    <bean id="repositoryService" factory-bean="processEngine" factory-method="getRepositoryService" />
    <bean id="runtimeService" factory-bean="processEngine" factory-method="getRuntimeService" />
    <bean id="taskService" factory-bean="processEngine" factory-method="getTaskService" />
    <bean id="historyService" factory-bean="processEngine" factory-method="getHistoryService" />
    <bean id="formService" factory-bean="processEngine" factory-method="getFormService" />
</beans>

到此配置完成使用的时候可使用注解注入activity的

//获取流程引擎对象，通过流程引擎对象可以获取其他几个服务对象
@Resource
private ProcessEngine processEngine;
//获取部署流程对象服务，通过repositoryService可以部署流程信息，查询流程信息
@Resource
private  RepositoryService repositoryService;
//获取流程运行时对象，可通过查询正在执行中的流程信息
@Resource
private RuntimeService  runtimeService;
//任务服务对象，可通过他查询任务信息
@Resource
private TaskService taskService;
//历史服务对象，通过他查询历史流程信息
@Resource
private HistoryService  historyService;

通过

<import resource="classpath:activiti.cfg.xml" />

导入到applicationContext.xml配置文件，交给spring管理。详细查看applicationContext.xml配置。

接下来是activity的基本使用。

如下配置applicationContext.xml:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" 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 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- 1、自动扫描与装配bean -->
    <context:component-scan base-package="cn.ssha"></context:component-scan>
    <!-- 导入外部的配置文件 -->
    <context:property-placeholder location="classpath:jdbc.properties" />
    <!-- 配置数据源 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="jdbcUrl" value="${jdbcUrl}"></property>
        <property name="driverClass" value="${driverClass}"></property>
        <property name="user" value="${user}"></property>
        <property name="password" value="${password}"></property>
        <!-- 其他配置 -->
        <!--初始化时获取三个连接，取值应在minPoolSize与maxPoolSize之间。Default: 3 -->
        <property name="initialPoolSize" value="3"></property>
        <!--连接池中保留的最小连接数。Default: 3 -->
        <property name="minPoolSize" value="3"></property>
        <!--连接池中保留的最大连接数。Default: 15 -->
        <property name="maxPoolSize" value="5"></property>
        <!--当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。Default: 3 -->
        <property name="acquireIncrement" value="3"></property>
        <!-- 控制数据源内加载的PreparedStatements数量。如果maxStatements与maxStatementsPerConnection均为0，则缓存被关闭。Default: 0 -->
        <property name="maxStatements" value="8"></property>
        <!--maxStatementsPerConnection定义了连接池内单个连接所拥有的最大缓存statements数。Default: 0 -->
        <property name="maxStatementsPerConnection" value="5"></property>
        <!--最大空闲时间,1800秒内未使用则连接被丢弃。若为0则永不丢弃。Default: 0 -->
        <property name="maxIdleTime" value="1800"></property>
    </bean>
    <!-- 配置sessionFactory -->
    <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <!-- 指定hibernate的配置路径 -->
        <property name="configLocation" value="classpath:hibernate.cfg.xml"></property>
        <property name="dataSource" ref="dataSource"></property>
        <!-- 配置c3p0数据库连接池 <property name="dataSource"> <bean class="com.mchange.v2.c3p0.ComboPooledDataSource"> 数据库连接信息 <property name="jdbcUrl" value="${jdbcUrl}"></property> <property name="driverClass" value="${driverClass}"></property> <property name="user" value="${user}"></property> <property name="password" value="${password}"></property> 其他配置 初始化时获取三个连接，取值应在minPoolSize与maxPoolSize之间。Default: 3 <property name="initialPoolSize" value="3"></property> 连接池中保留的最小连接数。Default: 3 <property name="minPoolSize" value="3"></property> 连接池中保留的最大连接数。Default: 15 <property name="maxPoolSize" value="5"></property> 当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。Default: 3 <property name="acquireIncrement" value="3"></property> 控制数据源内加载的PreparedStatements数量。如果maxStatements与maxStatementsPerConnection均为0，则缓存被关闭。Default: 0 <property name="maxStatements" value="8"></property> maxStatementsPerConnection定义了连接池内单个连接所拥有的最大缓存statements数。Default: 0 <property name="maxStatementsPerConnection" value="5"></property> 最大空闲时间,1800秒内未使用则连接被丢弃。若为0则永不丢弃。Default: 0 <property name="maxIdleTime" value="1800"></property> </bean> </property> -->
        <!-- <property name="mappingResources"> <list> <value>cn/ssha/oa/doman/Product.hbm.xml</value> <value>cn/ssha/oa/doman/Employee.hbm.xml</value> <value>cn/ssha/oa/doman/LeaveBill.hbm.xml</value> </list> </property> <property name="hibernateProperties"> <value> hibernate.dialect=org.hibernate.dialect.MySQL5InnoDBDialect hibernate.show_sql=true hibernate.hbm2ddl.auto=update hibernate.temp.use_jdbc_metadata_defaults=false </value> </property> -->
    </bean>
    <!-- 配置声名式事务管理（采用注解的方式） -->
    <bean id="txManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>
    <tx:annotation-driven transaction-manager="txManager" />
    <!-- 配置基础的Dao，在其他的DAO中只需要继承即可 -->
    <bean id="baseDao" abstract="true">
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>
    <import resource="classpath:activiti.cfg.xml" />

</beans>