流程引擎配置类以及流程引擎类的5种创建方式以及注意事项 1.手工方式创建流程引擎配置类以及流程引擎类 创建代码: public class CreateActivitiTable { @Test public void createTable() { ProcessEngineConfiguration processEngineConfiguration = ProcessEngineConfiguration.createStandaloneProcessEngineConfiguration(); processEngineConfiguration.setJdbcDriver("com.mysql.jdbc.Driver"); processEngineConfiguration.setJdbcUrl("jdbc:mysql://127.0.0.1:3306/activiti5.22?useUnicode=true&characterEncoding=UTF-8"); processEngineConfiguration.setJdbcUsername("root"); processEngineConfiguration.setJdbcPassword("root"); processEngineConfiguration.setDatabaseSchemaUpdate("true"); //生成表 ProcessEngine processEngine = processEngineConfiguration.buildProcessEngine(); System.out.println(processEngine); } } 2.createProcessEngineConfigurationFromInputStream:流方式进行创建 使用流进行创建的两种方式: 1.不指定Bean名称,默认使用Activiti名称 @Test public void InputStreamAutoCreateTable(){ InputStream in = CreateActivitiTable.class.getClassLoader().getResourceAsStream("activiti.cfg.xml"); ProcessEngineConfiguration processEngineConfiguration = ProcessEngineConfiguration.createProcessEngineConfigurationFromInputStream(in); ProcessEngine processEngine = processEngineConfiguration.buildProcessEngine(); System.out.println(processEngine); } 2.指定特定的名bean名称 @Test public void InputStreamAutoCreateTableBean(){ InputStream in=CreateActivitiTable.class.getClassLoader().getResourceAsStream("activiti.cfg.xml"); ProcessEngineConfiguration processEngineConfigurationFromInputStream = ProcessEngineConfiguration. createProcessEngineConfigurationFromInputStream(in, "processEngineConfiguration"); ProcessEngine buildProcessEngine = processEngineConfigurationFromInputStream.buildProcessEngine(); System.out.println(buildProcessEngine); } 进入源码可以看见本质区别 3.通过资源的方式进行创建 通过资源创建只需要指定配置文件即可 1.直接指定配置文件 @Test public void ResourceCreate(){ String resourceName = "activiti.cfg.xml"; ProcessEngineConfiguration processEngineConfiguration = ProcessEngineConfiguration.createProcessEngineConfigurationFromResource(resourceName); ProcessEngine processEngine = processEngineConfiguration.buildProcessEngine(); System.out.println(processEngine); } 2.指定特定的bean @Test public void ResourceCreateBean(){ String resourceName = "activiti.cfg.xml"; ProcessEngineConfiguration processEngineConfiguration = ProcessEngineConfiguration.createProcessEngineConfigurationFromResource(resourceName, "processEngineConfiguration"); ProcessEngine processEngine = processEngineConfiguration.buildProcessEngine(); System.out.println(processEngine); } 进入源码可以看见本质区别 4.默认方式创建 //通过默认方式进行创建 @Test public void createDataDefault(){ ProcessEngineConfiguration processEngineConfiguration=ProcessEngineConfiguration.createProcessEngineConfigurationFromResourceDefault(); ProcessEngine processEngine = processEngineConfiguration.buildProcessEngine(); System.out.println(processEngine); } @Test public void createDataInMem(){ ProcessEngineConfiguration processEngineConfiguration=ProcessEngineConfiguration.createStandaloneInMemProcessEngineConfiguration(); ProcessEngine processEngine = processEngineConfiguration.buildProcessEngine(); System.out.println(processEngine); } 查看源码可以发现 5.使用activiti框架提供的建表语句 activiti-engine.jar包中自带了创建activiti工作流数据库表的SQL语句和自动初始化数据库的方法。SQL语句在org.activiti.db.create包下,初始化方法在org.activiti.engine.impl.db.DbSchemaCreate的main方法之中。 使用MySQL数据库,执行以下选中的3个sql文件运行就可以成功创建23张表。
查看原文:https://blog.gzczy.top/2018/03/01/%e6%b5%81%e7%a8%8b%e5%bc%95%e6%93%8e%e9%85%8d%e7%bd%ae%e7%b1%bb%e4%bb%a5%e5%8f%8a%e6%b5%81%e7%a8%8b%e5%bc%95%e6%93%8e%e7%b1%bb%e7%9a%845%e7%a7%8d%e5%88%9b%e5%bb%ba%e6%96%b9%e5%bc%8f%e4%bb%a5%e5%8f%8a/
流程引擎配置类以及流程引擎类的5种创建方式以及注意事项
最新推荐文章于 2025-05-21 21:21:44 发布