Spring整合Activiti工作流

代码地址如下：
http://www.demodashi.com/demo/11911.html

一、前期准备

安装必要的开发环境

eclipse/intellij+maven 3.5.x + tomcat 7/8/9+mysql 5.x

将sql目录下面的5个SQL文件导入数据库中

二、程序实现

1. 项目结构

2. 主要配置

流程引擎的配置

在activiti.cfg.xml和spring-mybatis.xml配置文件中，主要配置了流程引擎，数据源(用于流程引擎自动生成与之相关的数据表)

 <!--流程引擎配置-->

    <bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration">

        <property name="dataSource" ref="dataSource"/>

        <property name="transactionManager" ref="transactionManager"/>

        <property name="databaseSchemaUpdate" value="true"/>

    </bean>

	<bean id="dbProperties" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">

        <property name="location" value="classpath:jdbc.properties"/>

        <property name="ignoreUnresolvablePlaceholders" value="true"/>

    </bean>

	 <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">

        <property name="driverClassName" value="${jdbc.driver}"/>

        <property name="url" value="${jdbc.url}"/>

        <property name="username" value="${jdbc.username}"/>

        <property name="password" value="${jdbc.password}"/>

        <property name="defaultAutoCommit" value="false"/>

    </bean>

    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

        <property name="dataSource" ref="dataSource"/>

    </bean>

2. spring与mybatis的整合

<!-- import jdbc.properties -->

	<context:property-placeholder location="classpath:jdbc.properties" ignore-unresolvable="true" />

	<!-- <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"> -->

	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">

		<property name="driverClassName" value="${jdbc.driver}" />

		<property name="url" value="${jdbc.url}" />

		<property name="username" value="${jdbc.username}" />

		<property name="password" value="${jdbc.password}" />

	</bean>

	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

		<property name="dataSource" ref="dataSource" />

		<!-- 自动扫描mapping.xml文件 -->

		<property name="mapperLocations" value="classpath:com/activiti/mapping/*.xml"></property>

	</bean>

	<!-- 装配dao接口 -->

	<bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">

		<property name="basePackage" value="com.activiti.dao" /> <!-- DAO接口所在包名，Spring会自动查找其下的类 -->

		<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>

	</bean>

3. Spring与SpringMVC整合

将SpringMVC整合进来，方便将前端结合起来

	<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">

		<property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />

		<property name="prefix" value="/WEB-INF/views" />

		<property name="suffix" value=".jsp" />

	</bean>

	<!-- 访问静态资源 -->

	<mvc:default-servlet-handler />

	<!-- 访问静态资源 -->

	<mvc:resources location="diagram-viewer/" mapping="diagram-viewer/**"/>

	<mvc:resources location="editor-app/" mapping="editor-app/**"/>

	<mvc:resources location="/" mapping="/**.html"/>

	<mvc:resources location="/" mapping="/**.jsp"/>

	<!-- 配置拦截器 -->

	<mvc:interceptors>

		<mvc:interceptor>

			<!-- /** 这里表示所有的url包括子url都进行拦截，如果是 /* ，则表示项目根url才会被拦截 -->

			<mvc:mapping path="/**" />

			<bean class="com.activiti.interceptor.LoginInterceptor"></bean>

		</mvc:interceptor>

	</mvc:interceptors>