activiti7表結構的生成

什麼是activiti

Activiti 是一個工作流引擎， activiti 可以将業務系統中複雜的業務流程抽取出來，使用專門的

模組化語言（BPMN2.0）進行定義，業務系統按照預先定義的流程進行執行，實作了業務系統的業務

流程由 activiti 進行管理，減少業務系統由于流程變更進行系統更新改造的工作量，進而提高系統的

健壯性，同時也減少了系統開發維護成本。

activiti環境搭建：

1、導入所需要的的依賴

<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>

        <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.47</version>
        </dependency>

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

        <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>
           

這裡也許你會疑問為什麼導入mysql相關的

答：因為activiti會預設為我們生成25張表（activiti生成25張 、activiti預設生成23張）

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">
    <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/activi" />
        <property name="username" value="root" />
        <property name="password" value="root" />
        <property name="maxActive" value="3" />
        <property name="maxIdle" value="1" />
    </bean>
<!--   activiti單獨運作的processEngine配置對象（processEngineConfiguration）,使用單獨啟動方式
    預設情況下：bean的id="processEngineConfiguration"-->
    <bean id="processEngineConfiguration1" class="org.activiti.engine.impl.cfg.StandaloneProcessEngineConfiguration">
<!--       注入資料源-->
        <property name="dataSource" ref="dataSource"></property>
<!--        代表是否生成表結構-->
        <property name="databaseSchemaUpdate" value="true"/>
    </bean>

</beans>

           

編寫一個測試類：

ActivitiTest.java

package com.wang;

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

/**
 * @Author WangTaiSheng
 * @Date 2020/10/13 17:49
 * @Version 1.0
 */
public class ActivitiTest {

    public static void main(String[] args) {
        //建立一個ProccessEngineConfiguration對象
        //createProcessEngineConfigurationFromResource中第一個參數為配置檔案名稱，第二個參數為bean的名稱
        ProcessEngineConfiguration configuration = ProcessEngineConfiguration
                .createProcessEngineConfigurationFromResource("activiti.cfg.xml","processEngineConfiguration1");

        //2.建立ProccessEngine對象
        ProcessEngine processEngine = configuration.buildProcessEngine();
        //輸出processEngine對象
        System.out.println(processEngine);
    }
    }
           

運作完成之後我們發現資料庫多了25

至此activi的表結構就生成了

注意：你加載依賴的時候可能有com.github.jpgraph:jgraphx:v3.9.3這個包無法加載

解決辦法：

在pom檔案加入如下倉庫：

<repositories>
        <repository>
            <id>com.github.jgraph</id>
            <name>Mulesoft repository</name>
            <url>https://repository.mulesoft.org/nexus/content/repositories/public/</url>
            <snapshots>
                <enabled>true</enabled>
            </snapshots>
        </repository>
    </repositories>
           

over！！！