Workflow - activiti7 environment setup

1. What is workflow

　　　　　　 workflow (Workflow), It is to automate the management of business processes through computers . Its main solution is “ Enable multiple participants According to some predefined

　　　　 The rules of automatically transfer documents 、 The process of information or tasks , To achieve a desired business goal , Or make it happen ”.

2. build activiti Environmental Science

　　2.1 What is? activiti　　

　　　　　　Alfresco Software in 2010 year 5 month 17 Announced Wednesday Activiti Business process management （BPM） The official launch of the open source project , Its chief architect is managed by business processes BPM

　　 　　 Expert Tom Baeyens As a ,Tom Baeyens It's the original jbpm Architect , and jbpm Is a very famous workflow engine , Of course activiti It is also a workflow engine .

　　　　Activiti It's a workflow engine , activiti It can extract the complex business processes from the business system , Use a special modeling language （BPMN2.0） Define ,

　　　　 The business system performs according to a predefined process , Realize the business of the business system Process by activiti Conduct management , Reduce system upgrade of business system due to process change

　　　　 Workload of level I reconstruction , So as to improve the robustness of the system , At the same time, it also reduces the cost of system development and maintenance .

　　2.2 open IDEA —> File —> Settings —> Plugins

　　 Select the path to download jar Package selection idea Plug in website ：
https://plugins.jetbrains.com/

　　 Restart after selection

　　 At this point, we can see BpmmFile

　　3. establish bpmn Document making process control chart

4. development environment

　　4.1 Import dependence 　　

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.7</maven.compiler.source>
    <maven.compiler.target>1.7</maven.compiler.target>
    <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>

　　4.2 establish Activiti The configuration file activiti.cfg.xml（ Create a database ahead of time )

<!-- data source -->
    <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-y2170"/>
        <property name="username" value="root"/>
        <property name="password" value="123"/>
    </bean>

    <!-- To configure Activiti The use of processEngine object     The default name is processEngineConfiguration-->
    <bean id="processEngineConfiguration01" class="org.activiti.engine.impl.cfg.StandaloneProcessEngineConfiguration">
        <!-- Inject data source -->
        <property name="dataSource" ref="dataSource"/>
        <!-- Configure data source mode 2 ：-->
        <!--<property name="jdbcDriver" value="com.mysql.jdbc.Driver"/>-->

        <!-- Specify the database generation policy -->
        <property name="databaseSchemaUpdate" value="true"/>
    </bean>

　　4.3 Create a log profile

# 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:\axis.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

　　4.4 Create a test class load configuration file

  public static void main(String[] args) {
        // Load the configuration 
        ProcessEngineConfiguration configuration = ProcessEngineConfiguration.createProcessEngineConfigurationFromResource("activiti.cfg.xml");
        // obtain ProcessEngine object 
        ProcessEngine processEngine = configuration.buildProcessEngine();
    }

　　4.5 After starting the project, the database will be added 25 A watch

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