Jboot初遇activiti

1.概述前言

在网上好多都是spring整合activiti的例子或解决方案，最近有点时间所以来学习学习，这里以公司使用的主要框架Jboot为主。网上有个JFina集成的例子，项目很好l Activiti集成Modeler(使用Jfinal)(不用SpringMvc,不用Spring)。我的配置项就是根据他做的

2.插件配置

2.1ActivitiPlugin

import com.jfinal.plugin.IPlugin;
import com.jfinal.plugin.activerecord.DbKit;
import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngineConfiguration;
import org.activiti.engine.ProcessEngines;
import org.activiti.engine.impl.cfg.ProcessEngineConfigurationImpl;
import org.activiti.engine.impl.cfg.StandaloneProcessEngineConfiguration;/****/
public class ActivitiPlugin implements IPlugin{private static ProcessEngine processEngine = null;private static ProcessEngineConfiguration processEngineConfiguration = null;private boolean isStarted = false;@Overridepublic boolean start(){try {createProcessEngine();} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();}return true;}@Overridepublic boolean stop() {ProcessEngines.destroy();isStarted = false;return true;}private Boolean createProcessEngine() throws Exception{if (isStarted) {return true;}StandaloneProcessEngineConfiguration conf = (StandaloneProcessEngineConfiguration) ProcessEngineConfiguration.createStandaloneProcessEngineConfiguration();conf.setDataSource(DbKit.getConfig().getDataSource());conf.setEnableDatabaseEventLogging(false);conf.setDatabaseSchemaUpdate(ProcessEngineConfigurationImpl.DB_SCHEMA_UPDATE_TRUE);//更新
//      conf.setDatabaseSchemaUpdate(ProcessEngineConfigurationImpl.DB_SCHEMA_UPDATE_DROP_CREATE);//重置数据库!!!调试用!!!请勿打开!!!conf.setDbHistoryUsed(true);conf.setTransactionsExternallyManaged(true);//使用托管事务工厂conf.setTransactionFactory(new ActivitiTransactionFactory());UuidGenerator uuidG = new UuidGenerator();conf.setIdGenerator(uuidG);conf.setActivityFontName("宋体");conf.setLabelFontName("宋体");conf.setAnnotationFontName("宋体");ActivitiPlugin.processEngine = conf.buildProcessEngine();isStarted = true;//开启流程引擎System.out.println("启动流程引擎.......");return isStarted;}// 开启流程服务引擎public static ProcessEngine buildProcessEngine() {if (processEngine == null)if (processEngineConfiguration != null) {processEngine = processEngineConfiguration.buildProcessEngine();}return processEngine;}
}

2.2 ActivitiTransaction

import java.sql.Connection;
import java.sql.SQLException;import javax.sql.DataSource;import org.apache.ibatis.session.TransactionIsolationLevel;
import org.apache.ibatis.transaction.Transaction;import com.jfinal.plugin.activerecord.DbKit;/****/
public class ActivitiTransaction implements Transaction {protected Connection connection;protected DataSource dataSource;protected TransactionIsolationLevel level;protected boolean autoCommmit;public ActivitiTransaction(DataSource ds, TransactionIsolationLevel desiredLevel, boolean desiredAutoCommit) {dataSource = ds;level = desiredLevel;autoCommmit = desiredAutoCommit;}public ActivitiTransaction(Connection connection) {this.connection = connection;}@Overridepublic Connection getConnection() throws SQLException {if (connection == null) {openConnection();}return connection;}@Overridepublic void commit() throws SQLException {}@Overridepublic void rollback() throws SQLException {}@Overridepublic void close() throws SQLException {if(connection!=null){DbKit.getConfig().close(connection);}}protected void openConnection() throws SQLException {connection = DbKit.getConfig().getConnection();if (level != null) {connection.setTransactionIsolation(level.getLevel());}}
}

2.3 ActivitiTransactionFactory

import java.sql.Connection;
import java.util.Properties;import javax.sql.DataSource;import org.apache.ibatis.session.TransactionIsolationLevel;
import org.apache.ibatis.transaction.Transaction;
import org.apache.ibatis.transaction.TransactionFactory;/****/
public class ActivitiTransactionFactory implements TransactionFactory {@Overridepublic void setProperties(Properties props) {}@Overridepublic Transaction newTransaction(Connection conn) {return new ActivitiTransaction(conn);}@Overridepublic Transaction newTransaction(DataSource ds, TransactionIsolationLevel level, boolean autoCommit) {return new ActivitiTransaction(ds, level, autoCommit);}
}

2.3 ActivitiConfig

凡是开发过 JFinal 的同学，都知道 JFinalConfig 是 JFinal 的核心配置，详情： https://www.jfinal.com/doc/2-1

因为 Jboot 已经对 JFinal 进行了默认的配置,所以编写一个类继承 JbootAppListenerBase，然后复写对应的方法

import com.example.activiti.plugin.ActivitiPlugin;
import io.jboot.aop.jfinal.JfinalPlugins;
import io.jboot.core.listener.JbootAppListenerBase;public class ActivitiConfig extends JbootAppListenerBase{public void ActivitiConfig(){}public void onPluginConfig(JfinalPlugins plugins) {plugins.add(new ActivitiPlugin());}}

3 启动项目验证流程是否启动

并且数据库已经生成activiti的表：

配置成功!!!

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