1.创建项目

2.导入Activiti的jar包

项目上右击创建lib文件夹

将jar包复制进lib文件夹

3.导入数据库连接jar包

4.使用代码创建Activiti用来存放流程数据的23张表

package junit;

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需要的23张表
*/
@Test
public void createTable(){
ProcessEngineConfiguration processEngineConfiguration = ProcessEngineConfiguration.createStandaloneProcessEngineConfiguration();
//连接数据库配置
processEngineConfiguration.setJdbcDriver("com.mysql.jdbc.Driver");
processEngineConfiguration.setJdbcUrl("jdbc:mysql://localhost:3306/activiti?useUnicode=true&characterEncoding=utf8");
processEngineConfiguration.setJdbcUsername("root");
processEngineConfiguration.setJdbcPassword("******"); /**
public static final String DB_SCHEMA_UPDATE_FALSE = "false";//不能自动创建表,需要表存在
public static final String DB_SCHEMA_UPDATE_CREATE_DROP = "create-drop";//先删除表再创建表
public static final String DB_SCHEMA_UPDATE_TRUE = "true";//如果表不存在,自动创建表
*/
processEngineConfiguration.setDatabaseSchemaUpdate(ProcessEngineConfiguration.DB_SCHEMA_UPDATE_TRUE);
//工作流的核心对象,ProcessEngine对象
ProcessEngine processEngine = processEngineConfiguration.buildProcessEngine();
System.out.println("processEngine:"+ processEngine);
}
}

5.优化使用配置文件来创建工作流需要的23张表

activiti.cfg.xml

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
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
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd"> <!--
ProcessEngineConfiguration processEngineConfiguration = ProcessEngineConfiguration.createStandaloneProcessEngineConfiguration();
//连接数据库配置
processEngineConfiguration.setJdbcDriver("com.mysql.jdbc.Driver");
processEngineConfiguration.setJdbcUrl("jdbc:mysql://localhost:3306/activiti?useUnicode=true&characterEncoding=utf8");
processEngineConfiguration.setJdbcUsername("root");
processEngineConfiguration.setJdbcPassword("******"); /**
public static final String DB_SCHEMA_UPDATE_FALSE = "false";//不能自动创建表,需要表存在
public static final String DB_SCHEMA_UPDATE_CREATE_DROP = "create-drop";//先删除表再创建表
public static final String DB_SCHEMA_UPDATE_TRUE = "true";//如果表不存在,自动创建表
*/
processEngineConfiguration.setDatabaseSchemaUpdate(ProcessEngineConfiguration.DB_SCHEMA_UPDATE_TRUE);
--> <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?useUnicode=true&amp;characterEncoding=utf8"></property>
<property name="jdbcUsername" value="root"></property>
<property name="jdbcPassword" value="******"></property>
<!-- 没有表创建表 -->
<property name="databaseSchemaUpdate" value="true"></property>
</bean> </beans>

log4j.properties

log4j.rootLogger=INFO, CA

# ConsoleAppender
log4j.appender.CA=org.apache.log4j.ConsoleAppender
log4j.appender.CA.layout=org.apache.log4j.PatternLayout
log4j.appender.CA.layout.ConversionPattern= %d{hh:mm:ss,SSS} [%t] %-5p %c %x - %m%n
TestActiviti.java
package junit;

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需要的23张表
*/
@Test
public void createTable(){
ProcessEngineConfiguration processEngineConfiguration = ProcessEngineConfiguration.createStandaloneProcessEngineConfiguration();
//连接数据库配置
processEngineConfiguration.setJdbcDriver("com.mysql.jdbc.Driver");
processEngineConfiguration.setJdbcUrl("jdbc:mysql://localhost:3306/activiti?useUnicode=true&characterEncoding=utf8");
processEngineConfiguration.setJdbcUsername("root");
processEngineConfiguration.setJdbcPassword("******"); /**
public static final String DB_SCHEMA_UPDATE_FALSE = "false";//不能自动创建表,需要表存在
public static final String DB_SCHEMA_UPDATE_CREATE_DROP = "create-drop";//先删除表再创建表
public static final String DB_SCHEMA_UPDATE_TRUE = "true";//如果表不存在,自动创建表
*/
processEngineConfiguration.setDatabaseSchemaUpdate(ProcessEngineConfiguration.DB_SCHEMA_UPDATE_TRUE);
//工作流的核心对象,ProcessEngine对象
ProcessEngine processEngine = processEngineConfiguration.buildProcessEngine();
System.out.println("processEngine:"+ processEngine);
} /*
* 使用配置文件来创建工作流需要的23张表
*/
@Test
public void createTable2(){
// ProcessEngineConfiguration processEngineConfiguration = ProcessEngineConfiguration.createProcessEngineConfigurationFromResource("activiti.cfg.xml");
// //工作流的核心对象,ProcessEngine对象
// ProcessEngine processEngine = processEngineConfiguration.buildProcessEngine(); ProcessEngine processEngine = ProcessEngineConfiguration.createProcessEngineConfigurationFromResource("activiti.cfg.xml").buildProcessEngine();
System.out.println("processEngine:"+ processEngine);
}
}

6.创建流程图



 











<?xml version="1.0" encoding="UTF-8"?>
<definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:activiti="http://activiti.org/bpmn" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:omgdc="http://www.omg.org/spec/DD/20100524/DC" xmlns:omgdi="http://www.omg.org/spec/DD/20100524/DI" typeLanguage="http://www.w3.org/2001/XMLSchema" expressionLanguage="http://www.w3.org/1999/XPath" targetNamespace="http://www.activiti.org/test">
<process id="HelloWorld" name="HelloWorldProcess" isExecutable="true">
<startEvent id="startevent1" name="Start"></startEvent>
<endEvent id="endevent1" name="End"></endEvent>
<userTask id="usertask1" name="提交申请" activiti:assignee="张三"></userTask>
<userTask id="usertask2" name="审批【部门经理】" activiti:assignee="李四"></userTask>
<userTask id="usertask3" name="审批【总经理】" activiti:assignee="王五"></userTask>
<sequenceFlow id="flow2" sourceRef="startevent1" targetRef="usertask1"></sequenceFlow>
<sequenceFlow id="flow3" sourceRef="usertask1" targetRef="usertask2"></sequenceFlow>
<sequenceFlow id="flow4" sourceRef="usertask2" targetRef="usertask3"></sequenceFlow>
<sequenceFlow id="flow5" sourceRef="usertask3" targetRef="endevent1"></sequenceFlow>
</process>
<bpmndi:BPMNDiagram id="BPMNDiagram_HelloWorld">
<bpmndi:BPMNPlane bpmnElement="HelloWorld" id="BPMNPlane_HelloWorld">
<bpmndi:BPMNShape bpmnElement="startevent1" id="BPMNShape_startevent1">
<omgdc:Bounds height="35.0" width="41.0" x="20.0" y="240.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="endevent1" id="BPMNShape_endevent1">
<omgdc:Bounds height="35.0" width="35.0" x="570.0" y="240.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="usertask1" id="BPMNShape_usertask1">
<omgdc:Bounds height="55.0" width="105.0" x="90.0" y="230.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="usertask2" id="BPMNShape_usertask2">
<omgdc:Bounds height="55.0" width="101.0" x="240.0" y="230.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="usertask3" id="BPMNShape_usertask3">
<omgdc:Bounds height="55.0" width="111.0" x="400.0" y="230.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNEdge bpmnElement="flow2" id="BPMNEdge_flow2">
<omgdi:waypoint x="61.0" y="257.0"></omgdi:waypoint>
<omgdi:waypoint x="90.0" y="257.0"></omgdi:waypoint>
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge bpmnElement="flow3" id="BPMNEdge_flow3">
<omgdi:waypoint x="195.0" y="257.0"></omgdi:waypoint>
<omgdi:waypoint x="240.0" y="257.0"></omgdi:waypoint>
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge bpmnElement="flow4" id="BPMNEdge_flow4">
<omgdi:waypoint x="341.0" y="257.0"></omgdi:waypoint>
<omgdi:waypoint x="400.0" y="257.0"></omgdi:waypoint>
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge bpmnElement="flow5" id="BPMNEdge_flow5">
<omgdi:waypoint x="511.0" y="257.0"></omgdi:waypoint>
<omgdi:waypoint x="570.0" y="257.0"></omgdi:waypoint>
</bpmndi:BPMNEdge>
</bpmndi:BPMNPlane>
</bpmndi:BPMNDiagram>
</definitions>

7.部署流程定义

HelloWorld.java
package com.mycom.helloWorld;

import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngines;
import org.activiti.engine.repository.Deployment;
import org.junit.Test; public class HelloWorld { ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine(); /*
*部署流程定义
*/
@Test
public void deploymentProcessDefinition(){
Deployment deployment = processEngine.getRepositoryService()//与流程定义和部署对象相关的Service
.createDeployment()//创建一个部署对象
.name("HelloWorld入门")//添加部署名称
.addClasspathResource("diagrams/HelloWorld.bpmn")//从classpath的资源中加载,一次只能加载一个文件
.addClasspathResource("diagrams/HelloWorld.png")
.deploy();//完成部署
System.out.println(deployment.getId());
System.out.println(deployment.getName()); }
}

8.启动流程实例

package com.mycom.helloWorld;

import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngines;
import org.activiti.engine.repository.Deployment;
import org.activiti.engine.runtime.ProcessInstance;
import org.junit.Test; public class HelloWorld { ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine(); /*
*部署流程定义
*/
@Test
public void deploymentProcessDefinition(){
Deployment deployment = processEngine.getRepositoryService()//与流程定义和部署对象相关的Service
.createDeployment()//创建一个部署对象
.name("HelloWorld入门")//添加部署名称
.addClasspathResource("diagrams/HelloWorld.bpmn")//从classpath的资源中加载,一次只能加载一个文件
.addClasspathResource("diagrams/HelloWorld.png")
.deploy();//完成部署
System.out.println("部署ID:"+deployment.getId());
System.out.println("部署名称:"+deployment.getName()); } /*
* 启动流程实例
*/
@Test
public void startProcessInstance(){
//流程定义的key
String processDefinitionKey = "HelloWorld";
ProcessInstance processInstance = processEngine.getRuntimeService()//与正在执行的流程实例和执行对象相关的Service
.startProcessInstanceByKey(processDefinitionKey);//使用流程定义的key启动流程实例,key对应HelloWorld.bpmn文件中的ID的属性值,使用key值启动,默认是按照最新版本的流程定义启动 System.out.println("流程实例ID:"+processInstance.getId());//流程实例ID
System.out.println("流程定义ID:"+processInstance.getProcessDefinitionId());//流程定义ID }
}

9. 查询当前人的个人任务

package com.mycom.helloWorld;

import java.util.List;

import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngines;
import org.activiti.engine.repository.Deployment;
import org.activiti.engine.runtime.ProcessInstance;
import org.activiti.engine.task.Task;
import org.junit.Test; public class HelloWorld { ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine(); /*
*部署流程定义
*/
@Test
public void deploymentProcessDefinition(){
Deployment deployment = processEngine.getRepositoryService()//与流程定义和部署对象相关的Service
.createDeployment()//创建一个部署对象
.name("HelloWorld入门")//添加部署名称
.addClasspathResource("diagrams/HelloWorld.bpmn")//从classpath的资源中加载,一次只能加载一个文件
.addClasspathResource("diagrams/HelloWorld.png")
.deploy();//完成部署
System.out.println("部署ID:"+deployment.getId());
System.out.println("部署名称:"+deployment.getName()); } /*
* 启动流程实例
*/
@Test
public void startProcessInstance(){
//流程定义的key
String processDefinitionKey = "HelloWorld";
ProcessInstance processInstance = processEngine.getRuntimeService()//与正在执行的流程实例和执行对象相关的Service
.startProcessInstanceByKey(processDefinitionKey);//使用流程定义的key启动流程实例,key对应HelloWorld.bpmn文件中的ID的属性值,使用key值启动,默认是按照最新版本的流程定义启动 System.out.println("流程实例ID:"+processInstance.getId());//流程实例ID
System.out.println("流程定义ID:"+processInstance.getProcessDefinitionId());//流程定义ID } /*
* 查询当前人的个人任务
*/
@Test
public void findMyPersonalTask(){
String assignee = "张三";
List<Task> list = processEngine.getTaskService()//与正在执行任务相关的Service
.createTaskQuery()//创建任务查询对象
.taskAssignee(assignee)//指定个人任务查询,指定办理人
.list(); if(list!=null && list.size()>0){
for(Task task:list){
System.out.println("任务ID:"+task.getId());
System.out.println("任务名称:"+task.getName());
System.out.println("任务创建时间:"+task.getCreateTime());
System.out.println("任务办理人:"+task.getAssignee());
System.out.println("流程实例ID:"+task.getProcessInstanceId());
System.out.println("执行对象ID:"+task.getExecutionId());
System.out.println("流程定义ID:"+task.getProcessDefinitionId());
}
}
}
}

10.完成我的任务

package com.mycom.helloWorld;

import java.util.List;

import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngines;
import org.activiti.engine.repository.Deployment;
import org.activiti.engine.runtime.ProcessInstance;
import org.activiti.engine.task.Task;
import org.junit.Test; public class HelloWorld { ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine(); /*
*部署流程定义
*/
@Test
public void deploymentProcessDefinition(){
Deployment deployment = processEngine.getRepositoryService()//与流程定义和部署对象相关的Service
.createDeployment()//创建一个部署对象
.name("HelloWorld入门")//添加部署名称
.addClasspathResource("diagrams/HelloWorld.bpmn")//从classpath的资源中加载,一次只能加载一个文件
.addClasspathResource("diagrams/HelloWorld.png")
.deploy();//完成部署
System.out.println("部署ID:"+deployment.getId());
System.out.println("部署名称:"+deployment.getName()); } /*
* 启动流程实例
*/
@Test
public void startProcessInstance(){
//流程定义的key
String processDefinitionKey = "HelloWorld";
ProcessInstance processInstance = processEngine.getRuntimeService()//与正在执行的流程实例和执行对象相关的Service
.startProcessInstanceByKey(processDefinitionKey);//使用流程定义的key启动流程实例,key对应HelloWorld.bpmn文件中的ID的属性值,使用key值启动,默认是按照最新版本的流程定义启动 System.out.println("流程实例ID:"+processInstance.getId());//流程实例ID
System.out.println("流程定义ID:"+processInstance.getProcessDefinitionId());//流程定义ID } /*
* 查询当前人的个人任务
*/
@Test
public void findMyPersonalTask(){
String assignee = "张三";
List<Task> list = processEngine.getTaskService()//与正在执行任务相关的Service
.createTaskQuery()//创建任务查询对象
.taskAssignee(assignee)//指定个人任务查询,指定办理人
.list(); if(list!=null && list.size()>0){
for(Task task:list){
System.out.println("任务ID:"+task.getId());
System.out.println("任务名称:"+task.getName());
System.out.println("任务创建时间:"+task.getCreateTime());
System.out.println("任务办理人:"+task.getAssignee());
System.out.println("流程实例ID:"+task.getProcessInstanceId());
System.out.println("执行对象ID:"+task.getExecutionId());
System.out.println("流程定义ID:"+task.getProcessDefinitionId());
}
}
} /*
* 完成我的任务
*/
@Test
public void completeMyPersonalTask(){
//任务Id
String taskId = "104";
processEngine.getTaskService()//与正在执行任务相关的Service
.complete(taskId);
System.out.println("完成任务:任务Id:"+taskId); } }

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