[activiti] activiti environment configuration

Activiti Environment configuration

1. download activiti

Activiti Download address ：http://activiti.org/download.html , Or use Maven The dependence is as follows ：

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-dependencies</artifactId>
            <version>7.0.0.Beta1</version>
            <scope>import</scope>
            <type>pom</type>
        </dependency>
    </dependencies>
</dependencyManagement>

2. Process designer

according to idea Version self Baidu activiti bpmn visualizer, perhaps Camunda Modeler, Here is a ：https://www.jianshu.com/p/5942c4ee513c

3. Database support

activiti Running requires database support , The supported databases are ：h2, mysql, oracle, postgres, mssql, db2.

Activiti Database support is required at runtime , Use 25 A watch , Read the content of the process definition node into the database table , For future use .

3.1 Create database

establish mysql database activiti, Random names ：

CREATE DATABASE activiti DEFAULT CHARACTER SET utf8;

4. Generate data table

4.1 Create a project

Create a maven engineering , Random names ,maven rely on ：

<properties>
    <slf4j.version>1.6.6</slf4j.version>
    <log4j.version>1.2.12</log4j.version>
    <activiti.version>7.0.0.Beta1</activiti.version>
</properties>
<dependencies>
    <dependency>
        <groupId>org.activiti</groupId>
        <artifactId>activiti-engine</artifactId>
        <version>${activiti.version}</version>
    </dependency>
    <dependency>
        <groupId>org.activiti</groupId>
        <artifactId>activiti-spring</artifactId>
        <version>${activiti.version}</version>
    </dependency>
    <!-- bpmn  Model processing  -->
    <dependency>
        <groupId>org.activiti</groupId>
        <artifactId>activiti-bpmn-model</artifactId>
        <version>${activiti.version}</version>
    </dependency>
    <!-- bpmn  transformation  -->
    <dependency>
        <groupId>org.activiti</groupId>
        <artifactId>activiti-bpmn-converter</artifactId>
        <version>${activiti.version}</version>
    </dependency>
    <!-- bpmn json Data conversion  -->
    <dependency>
        <groupId>org.activiti</groupId>
        <artifactId>activiti-json-converter</artifactId>
        <version>${activiti.version}</version>
    </dependency>
    <!-- bpmn  Layout  -->
    <dependency>
        <groupId>org.activiti</groupId>
        <artifactId>activiti-bpmn-layout</artifactId>
        <version>${activiti.version}</version>
    </dependency>
    <!-- activiti  Cloud support  -->
    <dependency>
        <groupId>org.activiti.cloud</groupId>
        <artifactId>activiti-cloud-services-api</artifactId>
        <version>${activiti.version}</version>
    </dependency>
    <!-- mysql drive  -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.40</version>
    </dependency>
    <!-- mybatis -->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>3.4.5</version>
    </dependency>
    <!--  Link pool  -->
    <dependency>
        <groupId>commons-dbcp</groupId>
        <artifactId>commons-dbcp</artifactId>
        <version>1.4</version>
    </dependency>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
    </dependency>
    <!-- log start -->
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>${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>
</dependencies>

4.2 add to log4j Log configuration

# 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=D:\logs\act\activiti.log
log4j.appender.LOGFILE.Append=true
log4j.appender.LOGFILE.layout=org.apache.log4j.PatternLayout
log4j.appender.LOGFILE.layout.ConversionPattern=%d{ISO8601} %-6r[%15.15t] %-5p %30.30c %x - %m\n

4.3activiti The configuration file

Use it here first activiti Provides the default way to create database tables

The requirement of the default mode is resources Create activiti.cfg.xml file , The path and file name cannot be modified , Otherwise activiti Cannot read

activiti.cfg.xml

To configure processEngineConfiguration Connect to database , There are two ways to configure ：

Mode one ： Direct configuration processEngineConfiguration

<?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">
    <!--  Default id Corresponding value   by processEngineConfiguration -->
    <!-- processEngine Activiti The process engine of  -->
    <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"/>
        <property name="jdbcUsername" value="root"/>
        <property name="jdbcPassword" value="root"/>
        <!-- activiti Database table processing strategy  -->
        <property name="databaseSchemaUpdate" value="true"/>
    </bean>
</beans>

Mode two ： Configure the data source separately , And then in processEngineConfiguration quote

<?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">

    <!--  Here you can use   Link pool  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" />
        <property name="maxActive" value="3" />
        <property name="maxIdle" value="1" />
    </bean>

    <bean id="processEngineConfiguration" class="org.activiti.engine.impl.cfg.StandaloneProcessEngineConfiguration">
        <!--  Reference data source   It's already set up -->
        <property name="dataSource" ref="dataSource" />
        <!-- activiti Database table processing strategy  -->
        <property name="databaseSchemaUpdate" value="true"/>
    </bean>
</beans>

5. Write program generation table

Create a test class , call activiti Tool class of , Generate acitivti Required database tables .

Use it directly activiti Tool class provided ProcessEngines, Will read by default classpath Under the activiti.cfg.xml file , Read the database configuration , establish ProcessEngine, Creating ProcessEngine Table is automatically created when .

The code is as follows ：

@Test
public void testCreateTable() {
    
    // Use classpath Under the activiti.cfg.xml Configuration creation in processEngine
    // Default mode , Will automatically find resource Under the activiti.cfg.xml file 
    ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
    System.out.println(processEngine);
}

explain ：

After running the above code, you can create activiti Service sheet . see idea Console , You will see the create table structure statement , And initialize table data statements .

After completion , Will create 25 Data sheets