Activiti7工作流引擎环境搭建

在IEDA中添加actiBPM插件

file -->>Settings -->> Plugins -->> actiBPM

添加Activiti所需的jar包

1. activiti-engine-7.0.0.beta1.jar
2. activiti 依赖的 jar 包:mybatis、alf4j、log4j 等
3. activiti 依赖的 spring 包
4. 数据库驱动
5. 第三方数据连接池 dbcp
6. 单元测试 Junit-4.12.jar
   我们使用 maven 来实现项目的构建,所以应当导入这些 jar 所对应的坐标到 pom.xml 文件中。

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.hellogitee.activiti</groupId>
    <artifactId>activiti01</artifactId>
    <version>1.0-SNAPSHOT</version>

    <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>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>


        <!-- 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>
        <!-- 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>
    </dependencies>

</project>

数据库中添加activiti表

CREATE DATABASE activiti

添加log4j 配置文件

在src-->main-->resources目录下添加配置文件 log4j.properties

# Set root category priority to INFO and its only appender to CONSOLE.
#log4j.rootCategory=INFO, CONSOLE
debug
info
warn error fatal
log4j.rootCategory=debug, CONSOLE, LOGFILE
# Set the enterprise logger category to FATAL and its only appender to CONSOLE.
log4j.logger.org.apache.axis.enterprise=FATAL, CONSOLE
# CONSOLE is set to be a ConsoleAppender using a PatternLayout.
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{ISO8601}%-6r[%15.15t] %-5p %30.30c %x - %m\n
# LOGFILE is set to be a File appender using a PatternLayout.
log4j.appender.LOGFILE=org.apache.log4j.FileAppender
log4j.appender.LOGFILE.File=/home/aj/axis.log
log4j.appender.LOGFILE.Append=true
log4j.appender.LOGFILE.layout=org.apache.log4j.PatternLayout
log4j.appender.LOGFILE.layout.ConversionPattern=%d{ISO8601}[%15.15t] %-5p %30.30c %x - %m\n

添加activiti配置文件

在src-->main-->resources 目录下添加配置文件 activiti.cfg.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: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/contex http://www.springframework.org/schema/context/spring-context.xsd
                        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!--数据源配置dbcp-->
    <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" />
    </bean>
    <!--activiti单独运行的ProcessEngine配置对象(processEngineConfiguration),使用单独启动方式
        默认情况下：bean的id=processEngineConfiguration
    -->

    <bean id="processEngineConfiguration" class="org.activiti.engine.impl.cfg.StandaloneProcessEngineConfiguration">
    <!--代表数据源-->
    <property name="dataSource" ref="dataSource"></property>


   <!-- <property name="jdbcDriver" value="com.mysql.jdbc.Driver" />
    <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/activiti" />
    <property name="jdbcUsername" value="root" />
    <property name="jdbcPassword" value="root" />-->
    <!--代表是否生成表结构-->
    <property name="databaseSchemaUpdate" value="true"> </property>
    </bean>
</beans>

关于 processEngineConfiguration 中的 databaseSchemaUpdate 参数,通过此参数设计 activiti
数据表的处理策略,参数如下:
false(默认):检查数据库表的版本和依赖库的版本, 如果版本不匹配就抛出异常。
true: 构建流程引擎时,执行检查,如果需要就执行更新。 如果表不存在,就创建。
create-drop: 构建流程引擎时创建数据库表, 关闭流程引擎时删除这些表。
drop-create:先删除表再创建表。
create: 构建流程引擎时创建数据库表, 关闭流程引擎时不删除这些表。

测试程序

package com.hellogitee.test;

import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngineConfiguration;
import org.activiti.engine.ProcessEngines;
import org.junit.Test;



/**
 * 测试类
 *     作用：测试activiti所需要的25张表的生成
 */
public class ActivitiTest {

   @Test
    public void testGenTable1(){
        //条件：1.activiti配置文件名称：activiti.cfg.xml   2.bean的id="processEngineConfiguration"
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
        System.out.println(processEngine);

        // HistoryService historyService = processEngine.getHistoryService();

    }

    @Test
    public void testGenTable(){
        //1.创建ProcessEngineConfiguration对象  第一个参数:配置文件名称  第二个参数是processEngineConfiguration的bean的id
        ProcessEngineConfiguration configuration = ProcessEngineConfiguration
                .createProcessEngineConfigurationFromResource("activiti.cfg.xml","processEngineConfiguration");
        //2.创建ProcesEngine对象
        ProcessEngine processEngine = configuration.buildProcessEngine();

        //3.输出processEngine对象
        System.out.println(processEngine);
    }
}