1.配置pom.xml

<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>cn.luke.activiti</groupId>
    <artifactId>activitiDemo</artifactId>
    <version>0.0.1-SNAPSHOT</version>

    <!-- 配置版本 -->
    <properties>
        <spring.version>4.3.17.RELEASE</spring.version>
        <mysql.version>5.1.39</mysql.version>
        <activiti.version>5.22.0</activiti.version>
        <mybatis.version>3.4.6</mybatis.version>
        <log4j.version>1.2.17</log4j.version>
    </properties>
    <dependencies>
        <!-- activiti -->
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-engine</artifactId>
            <version>${activiti.version}</version>
        </dependency>
        <!-- 如果是web项目 -->
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-spring</artifactId>
            <version>${activiti.version}</version>
        </dependency>
        <!-- 数据库 mysql -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>${mysql.version}</version>
        </dependency>
        <!-- Spring -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-expression</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <!-- Mybatis -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>${mybatis.version}</version>
        </dependency>
        <!-- 日志文件 -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>${log4j.version}</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.25</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-simple</artifactId>
            <version>1.7.25</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <!-- 声明jdk版本 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.7.0</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

2.配置log4j.properties

log4j.rootLogger = debug,stdout

log4j.appender.stdout = org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout

log4j.appender.stdout.layout.ConversionPattern = [%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n

log4j.logger.com.codahale.metrics = WARN
log4j.logger.com.ryantenney = WARN
log4j.logger.com.zaxxer = WARN
log4j.logger.com.apache = WARN
log4j.logger.com.apache = WARN
log4j.logger.com.hibernate = WARN
log4j.logger.com.hibernate.engine.internal = WARN
log4j.logger.com.hibernate.validator = WARN
log4j.logger.com.springframework = WARN
log4j.logger.com.springframework.web = WARN
log4j.logger.com.springframework.security = WARN

3.初始化数据库

3.1创建数据库

3.2初始化表

a.方式1 代码初始化

@Test
    public void InitTables() {
        // 创建数据源
        DriverManagerDataSource dataSource = new DriverManagerDataSource();
        dataSource.setDriverClassName("com.mysql.jdbc.Driver");
        dataSource.setUrl("jdbc:mysql://127.0.0.1:3306/actdemo");
        dataSource.setUsername("root");
        dataSource.setPassword("root");
        // 创建流程引擎的配置
        ProcessEngineConfiguration configuration = ProcessEngineConfiguration
                .createStandaloneProcessEngineConfiguration();
        /*
         * configuration.setJdbcDriver("com.mysql.jdbc.Driver");
         * configuration.setJdbcUrl("jdbc:mysql://127.0.0.1:3306/actdemo");
         * configuration.setJdbcUsername("root"); configuration.setJdbcPassword("root");
         */
        configuration.setDataSource(dataSource);
        // 配置表的初始化方式
        /**
         * @databaseSchemaUpdate DB_SCHEMA_UPDATE_FALSE 如果数据库里面没有表都不会创建
         * @databaseSchemaUpdate DB_SCHEMA_UPDATE_CREATE_DROP 创建表,使用完后上删除
         * @databaseSchemaUpdate DB_SCHEMA_UPDATE_TRUE 如果数据库里没有表,就创建
         **/
        configuration.setDatabaseSchemaUpdate(ProcessEngineConfiguration.DB_SCHEMA_UPDATE_TRUE);

        // 得到流程引擎
        ProcessEngine processEngine = configuration.buildProcessEngine();
        System.out.println("构造流程引擎");
    }

b.方式2 activiti.cfg.xml

• 配置文件

<?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:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:task="http://www.springframework.org/schema/task"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans 
        http://www.springframework.org/schema/beans/spring-beans-4.2.xsd 
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context-4.2.xsd 
        http://www.springframework.org/schema/mvc 
        http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd 
        http://www.springframework.org/schema/task 
        http://www.springframework.org/schema/task/spring-task-4.2.xsd">
    <bean id="processEngineConfiguration" class="org.activiti.engine.impl.cfg.StandaloneProcessEngineConfiguration">
        <property name="jdbcDriver" value="com.mysql.jdbc.Driver"></property>
        <property name="jdbcUrl" value="jdbc:mysql://127.0.0.1:3306/actdemo"></property>
        <property name="jdbcUsername" value="root"></property>
        <property name="jdbcPassword" value="root"></property>
        <!-- 创建数据库 -->
        <property name="databaseSchemaUpdate" value="true"></property>
    </bean>
</beans>

• 代码加载文件

  @Test public void InitTablesSpring() { // 创建流程引擎的配置 ProcessEngineConfiguration configuration = ProcessEngineConfiguration .createProcessEngineConfigurationFromResource("/activiti.cfg.xml"); ProcessEngine processEngine = configuration.buildProcessEngine(); System.out.println("构造流程引擎"); }

  c.方式3 默认配置文件

• 会寻找默认的activiti.cfg.xml文件名进行加载配置

• 必须创建activiti.cfg.xml名字也必须一样

    @Test
    public void InitTablesProcessEngine() {
        ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
        System.out.println("默认配置文件");
    }