04【掌握】Activiti5开发环境
1.创建项目
2.配置pom依赖
<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.sxt.activiti</groupId>
<artifactId>activitiDemo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<!-- 声明版本 -->
<properties>
<spring.version>4.3.18.RELEASE</spring.version>
<mysql.version>5.1.39</mysql.version>
<activiti.version>6.0.0</activiti.version>
<mybatis.version>3.4.6</mybatis.version>
<fileupload.version>1.3.1</fileupload.version>
<log4j.version>1.2.17</log4j.version>
<slf4j.version>1.7.25</slf4j.version>
</properties>
<!-- 声明依赖 -->
<dependencies>
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-engine</artifactId>
<version>${activiti.version}</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<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-beans</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>${mybatis.version}</version>
</dependency>
<!-- 文件上传 -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>${fileupload.version}</version>
</dependency>
<!-- log4j -->
<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-simple</artifactId>
<version>${slf4j.version}</version>
</dependency>
</dependencies>
</project>
3.初始化数据库
初始化方式1:
@Test
public void createTable() {
//1,创建Activiti配置对象实例
ProcessEngineConfiguration processEngineConfiguration=ProcessEngineConfiguration.createStandaloneInMemProcessEngineConfiguration();
//配置数据库的参数
processEngineConfiguration.setJdbcDriver("com.mysql.jdbc.Driver");
processEngineConfiguration.setJdbcUrl("jdbc:mysql://127.0.0.1:3306/activiti");
processEngineConfiguration.setJdbcUsername("root");
processEngineConfiguration.setJdbcPassword("123456");
//设置建表策略
/**
* DB_SCHEMA_UPDATE_CREATE_DROP 创建表再删除 默认为create-dorp
* DB_SCHEMA_UPDATE_FALSE 不创建表
* DB_SCHEMA_UPDATE_TRUE 如果表存在，就不创建，如果不存在就创建
*/
// processEngineConfiguration.setDatabaseSchemaUpdate(ProcessEngineConfiguration.DB_SCHEMA_UPDATE_CREATE_DROP);
processEngineConfiguration.setDatabaseSchemaUpdate("drop-create");
//3,得到程序引擎实例
ProcessEngine engine = processEngineConfiguration.buildProcessEngine();
System.out.println(engine);
engine.close(); //如果使用DB_SCHEMA_UPDATE_CREATE_DROP会删除所有工作流相前的表
}
初始化方式2:
创建activiti.cfx.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"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.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://localhost:3306/activiti"></property>
<property name="jdbcUsername" value="root"></property>
<property name="jdbcPassword" value="123456"></property>
<!--
flase： 默认值。activiti在启动时，会对比数据库表中保存的版本，如果没有表或者版本不匹配，将抛出异常。
true： activiti会对数据库中所有表进行更新操作。如果表不存在，则自动创建。
create-drop： 在activiti启动时创建表，在关闭时删除表（必须手动关闭引擎，才能删除表）。
drop-create： 在activiti启动时删除原来的旧表，然后在创建新表（不需要手动关闭引擎）。 -->
<property name="databaseSchemaUpdate" value="drop-create"></property>
</bean>
</beans>
创建方法
@Test
public void createTable2() {
ProcessEngine engine = ProcessEngineConfiguration
.createProcessEngineConfigurationFromResource("/activiti.cfg.xml").buildProcessEngine();
System.out.println(engine);
}
05【掌握】activiti.cfg.xml的说明
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
<property name="url" value="jdbcUrl"></property>
<property name="username" value="root"></property>
<property name="password" value="123456"></property>
</bean>
<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://localhost:3306/activiti"></property>
<property name="jdbcUsername" value="root"></property>
<property name="jdbcPassword" value="123456"></property> -->
<property name="dataSource" ref="dataSource"></property>
<!--
flase： 默认值。activiti在启动时，会对比数据库表中保存的版本，如果没有表或者版本不匹配，将抛出异常。
true： activiti会对数据库中所有表进行更新操作。如果表不存在，则自动创建。
create-drop： 在activiti启动时创建表，在关闭时删除表（必须手动关闭引擎，才能删除表）。
drop-create： 在activiti启动时删除原来的旧表，然后在创建新表（不需要手动关闭引擎）。 -->
<property name="databaseSchemaUpdate" value="drop-create"></property>
</bean>
</beans>
06【掌握】核心API
1.ProcessEngine
作用说明：
1)在Activiti中最核心的类，其他的类都是由他而来。
2)产生方式。
获取方式:
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下面这种方式一定要创建activiti.cfg.xml这个配置文件名字要一样
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流程引擎生产的对象
//操作act_re_deployment, act_re_model, act_re_procdef, act_ge_bytearray
RepositoryService repositoryService = processEngine.getRepositoryService();
//操作act_ru_deadletter_job, act_ru_event_subscr, act_ru_execution, act_ru_identitylink, act_ru_job, act_ru_suspended_job, act_ru_task, act_ru_timer_job, act_ru_variable
RuntimeService runtimeService = processEngine.getRuntimeService();
TaskService taskService = processEngine.getTaskService();
//操作act_hi_actinst, act_hi_attachment, act_hi_comment, act_hi_detail, act_hi_identitylink, act_hi_procinst, act_hi_taskinst, act_hi_varinst
HistoryService historyService = processEngine.getHistoryService();
//操作act_id_group, act_id_info, act_id_membership, act_id_user
IdentityService identityService = processEngine.getIdentityService();
ManagementService managementService = processEngine.getManagementService();
FormService formEngineFormService = processEngine.getFormEngineFormService();
