Activiti——准备开发环境（一）

准备材料下

activiti-5.17.0

1.添加Activiti5 的jar包或Maven依赖

Jar包方式

通过上述下载链接下载Activiti后，解压得到如下目录：

 

把libs的jar包添加到你的工程中并Build Path 

Maven方式

pom.xml 如下

<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.demo.activiti</groupId>  <artifactId>practice01</artifactId>  <version>0.0.1-SNAPSHOT</version>  <packaging>jar</packaging>  <name>practice01</name>  <url>http://maven.apache.org</url>  <properties>    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>    <activiti-version>5.18.0</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>    <dependency>      <groupId>org.codehaus.groovy</groupId>      <artifactId>groovy-all</artifactId>      <version>2.4.3</version>    </dependency>    <dependency>      <groupId>com.h2database</groupId>      <artifactId>h2</artifactId>      <version>1.3.168</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>mysql</groupId>    <artifactId>mysql-connector-java</artifactId>    <version>5.1.18</version></dependency>        <dependency>      <groupId>junit</groupId>      <artifactId>junit</artifactId>      <version>4.11</version>      <scope>test</scope>    </dependency>  </dependencies> <build>    <plugins>      <plugin>        <groupId>org.apache.maven.plugins</groupId>        <artifactId>maven-compiler-plugin</artifactId>       <version>2.3.2</version>        <configuration>         <source>1.6</source>         <target>1.6</target>       </configuration>     </plugin>     <plugin>        <groupId>org.apache.maven.plugins</groupId>        <artifactId>maven-eclipse-plugin</artifactId>        <inherited>true</inherited>        <configuration>         <classpathContainers>           <classpathContainer>org.eclipse.jdt.USER_LIBRARY/Activiti Designer Extensions</classpathContainer>         </classpathContainers>       </configuration>     </plugin>    </plugins> </build></project>

2.初始化数据库

package practice01;import org.activiti.engine.ProcessEngine;import org.activiti.engine.ProcessEngineConfiguration;import org.junit.Test;public class TestActiviti {/** * 使用代码创建工作流程所需要的24张表 */@Testpublic void createTable() {//创建工作流引擎配置对象ProcessEngineConfiguration processEngineConfiguration = ProcessEngineConfiguration.createStandaloneProcessEngineConfiguration();//链接数据库的配置processEngineConfiguration.setJdbcDriver("com.mysql.jdbc.Driver");processEngineConfiguration.setJdbcUrl("jdbc:mysql://127.0.0.1:3306/activiti_practive01?useunicode=true&characterEncoding=utf8");processEngineConfiguration.setJdbcUsername("root");processEngineConfiguration.setJdbcPassword("xxxx");/** public static final String DB_SCHEMA_UPDATE_FALSE = "false";//不创建 public static final String DB_SCHEMA_UPDATE_CREATE_DROP = "create-drop"//先删除后创建 public static final String DB_SCHEMA_UPDATE_TRUE = "true"//创建表*/processEngineConfiguration.setDatabaseSchemaUpdate(ProcessEngineConfiguration.DB_SCHEMA_UPDATE_TRUE);//创建工作流程引擎ProcessEngine processEngine = processEngineConfiguration.buildProcessEngine();System.out.println(processEngine);}}

备注：在Activiti中，在创建核心的流程引擎对象时会自动建表。如果成行正常执行，mysql会自动建库，然后创建24张表

3.添加并指定配置文件

在Activiti中5 中定制流程必定会操作到数据库，如果都像上面那样写一大段代码会非常麻烦，所以我们可以把数据库配置写入配置文件

在Activiti5 的官方示例中并没有现成的配置文件，所以先得找到activi-rest\WEB-INF\classes下有。

activiti.cofg.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"  xmlns:jee="http://www.springframework.org/schema/jee" xmlns:aop="http://www.springframework.org/schema/aop"  xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd       http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.0.xsd       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">    <!-- 工作流引擎配置对象 -->     <bean id="processEngineConfiguration" class="org.activiti.engine.impl.cfg.StandaloneProcessEngineConfiguration">     <property name="jdbcDriver" value="com.mysql.jdbc.Driver"/>     <property name="jdbcUrl" value="jdbc:mysql://127.0.0.1:3349/activiti_practive01?useunicode=true&characterEncoding=utf8"/>     <property name="jdbcUsername" value="root"/>     <property name="jdbcPassword" value="xxxx"/>     <property name="databaseSchemaUpdate" value="true"/>     </bean>  </beans>

ProcessEngineConfiguration processEngineConfiguration = ProcessEngineConfiguration.createProcessEngineConfigurationFromResource("activiti.cfg.xml");//创建工作流程引擎ProcessEngine processEngine = processEngineConfiguration.buildProcessEngine();System.out.println(processEngine);

3.2 log4j.properties 日志配置文件

把上述两个文件放在resouces目录即可。