maven-activiti-spring 环境及activiti初始化

1. 环境

数据库：mysql 5.7.19

开发环境：idea+maven

操作系统：windows10

工具：navicat premium 12.0.11

2. 环境准备

(1)安装配置数据库

*  mysql5.7.19的安装配置：参考我的上一篇博文http://blog.youkuaiyun.com/jenyzhang/article/details/77932328

* 安装navicat premium 12.0.11

安装好navicat之后，连接到mysql  (如下图)

连接到mysql之后，新建数据库“activiti”（如下图）

（2）安装配置maven

2.1 下载Maven 
官方地址：http://maven.apache.org/download.cgi

2.2 修改环境变量

2.2.1新建MAVEN_HOME

2.2.2在path中加入：%MYSQL_HOME%\bin

2.2.3 重启，查看是否配置成功

mvn -version

2.2.4 添加本地库（修改conf/settings.xml）

添加

<localRepository>E:\Program Files (x86)\m2</localRepository>

这里

E:\Program Files (x86)\m2 是本地库的路径

(3)idea安装，与maven配置

idea安装好之后，maven配置方法如下：

3.1 file-->settings-->maven

3 正式开始

本例代码： https://github.com/jennyzhang8800/activiti-learn/tree/master/code/activitiDemo

(1) 新建maven项目

file-->new-->project-->maven

(2)编辑pom.xml

<?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.activiti</groupId>
    <artifactId>activiti-demo</artifactId>
    <version>1.0-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-engine</artifactId>
            <version>5.22.0</version>
        </dependency>

        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-spring</artifactId>
            <version>5.22.0</version>
        </dependency>

        <dependency>
            <groupId>org.codehaus.groovy</groupId>
            <artifactId>groovy-all</artifactId>
            <version>2.4.3</version>
        </dependency>


        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.6</version>
        </dependency>


        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-jdk14</artifactId>
            <version>1.7.6</version>
        </dependency>


        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>


        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.38</version>
        </dependency>

    </dependencies>
</project>

(3)在java/resource下新建activiti.cfg.xml

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">


    <bean id="processEngineConfiguration" class="org.activiti.engine.impl.cfg.StandaloneProcessEngineConfiguration">
        <property name="jdbcDriver" value="com.mysql.jdbc.Driver"/>
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/activiti?useUnicode=true&characterEncoding=utf8"/>
        <property name="jdbcUsername" value="root"/>
        <property name="jdbcPassword" value="root"/>
        <property name="databaseSchemaUpdate" value="true"/>
    </bean>
</beans>

上面是actviti配置中mqsql数据库联连的配置

（4）在test/java下新建测试类：createTable.java  创建activiti所需的23张表

package com.activiti.createTable1;
import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngineConfiguration;
import org.activiti.engine.repository.Deployment;
import org.junit.Test;
/**
 * Created by zyni on 2017/10/6.
 */
public class createTable {

    @Test
    public void createTableTest(){
        //表不存在的话创建表
        ProcessEngine processEngine = ProcessEngineConfiguration
                .createProcessEngineConfigurationFromResource("activiti.cfg.xml")
                .buildProcessEngine();
        System.out.println("------processEngine:" + processEngine);
      
    }
}

运行该测试类

可以看到下面的输出信息

然后查看mysql数据库，可以看到“activiti”数据库下己经新建了23张表

（5）布署一个流程

接下来就可以进行activiti的各项操作了。首先，我们来布署一个流程。

先在java/resource/下新建diagrams目录，然后把流程图放到这个目录下

流程图类似于这样：

然后，我们再写一个测试类.deployTest.java

package com.activiti.createTable1;

import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngineConfiguration;
import org.activiti.engine.repository.Deployment;
import org.junit.Test;

/**
 * Created by zyni on 2017/10/6.
 */
public class deployTest {
    @Test
    public void deployTest1(){
    //表不存在的话创建表
    ProcessEngine processEngine = ProcessEngineConfiguration
            .createProcessEngineConfigurationFromResource("activiti.cfg.xml")
            .buildProcessEngine();
    System.out.println("------processEngine:" + processEngine);
    //创建流程
    Deployment deployment = processEngine.getRepositoryService().createDeployment().name("请假程序")
            .addClasspathResource("diagrams/leave.bpmn").addClasspathResource("diagrams/leave.png").deploy();
    System.out.println(deployment.getId());
    System.out.println(deployment.getName());
}
}

运行之后，可以在mysql中查到该布署好的流程