Activiti 與 Spring整合的配置

Activiti 與 Spring整合的配置

引入 pom.xml 座標，如下

<properties>
        <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>
        <!--文件讀寫操作-->
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.0</version>
        </dependency>

    </dependencies>


    <repositories>
        <repository>
            <id>alfresco</id>
            <name>Activiti Releases</name>
            <url>https://artifacts.alfresco.com/nexus/content/repositories/activiti-releases/</url>
            <releases>
                <enabled>true</enabled>
            </releases>
        </repository>
    </repositories>

我們除了使用 StandaloneProcessEngineConfiguration 來創建ProcessEngine 流程引擎對象。 還可以通過 org.activiti.spring.SpringProcessEngineConfiguration 與 Spring 整合方式來創建
ProcessEngine 對象.

創建 spring與 activiti的整合配置文件： activiti-spring.xml（名稱不固定）

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       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/context
    http://www.springframework.org/schema/context/spring-context.xsd
    http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop.xsd
    ">

    <!-- 數據源 -->
    <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="root"/>
        <property name="maxActive" value="3"/>
        <property name="maxIdle" value="1"/>
    </bean>

    <!-- 工作流引擎配置bean -->
    <bean id="processEngineConfiguration" class="org.activiti.spring.SpringProcessEngineConfiguration">
        <!-- 數據源 -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 使用spring事務管理器 -->
        <property name="transactionManager" ref="transactionManager"/>
        <!-- 數據庫策略 -->
        <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>
    <!-- 資源服務service -->
    <bean id="repositoryService" factory-bean="processEngine"
          factory-method="getRepositoryService"/>
    <!-- 流程運行service -->
    <bean id="runtimeService" factory-bean="processEngine"
          factory-method="getRuntimeService"/>
    <!-- 任務管理service -->
    <bean id="taskService" factory-bean="processEngine"
          factory-method="getTaskService"/>
    <!-- 歷史管理service -->
    <bean id="historyService" factory-bean="processEngine"
          factory-method="getHistoryService"/>

    <!-- 事務管理器 -->
    <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>
            <!-- 傳播行爲 -->
            <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，根據具體項目修改切點配置 -->
    <aop:config proxy-target-class="true">
        <aop:advisor advice-ref="txAdvice"
                     pointcut="execution(* com.itheima.ihrm.service.impl.*.*(..))"/>
    </aop:config>
</beans>

測試代碼

package com.itheima.test;

import org.activiti.engine.RepositoryService;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

/**
 * spring與junit整合測試
 * 成功標誌：
 *      看activiti庫中是是否有25張表
 *      輸出一個repositoryService對象
 */
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:activiti-spring.xml")
public class ActivitiSpringIntegerTest {
    @Autowired
    private RepositoryService repositoryService;

    @Test
    public void testDeplorymentObj() {
        System.out.println("部署對象："+repositoryService);
    }
}

運行

數據表創建成功

Activiti與spring整合過程分析

從圖中我們可以看出，首先我們加載 activiti-spring.xml 配置文件，而該配置文件中又會加載 SpringProcessEngineConfiguration 對 象 ， 這 個 對 象 它 需 要 依 賴 注 入 dataSource 對 象 和 transactionManager 對象。其次會加載 ProcessEngineFactoryBean 工廠來創建 ProcessEngine 對象，而 ProcessEngineFactoryBean 工 廠 又 需 要 依 賴 注 入 processEngineConfiguration 對 象 。 最 後 由 processEngine 對象來負責創建我們的 Service 對象，從而簡化 Activiti 的開發過程。在程序代碼中我 們可以根據實際需求來決定使用的Service 對象。