【Activiti学习之四】Activiti API（三）

环境
　　JDK 1.8
　　MySQL 5.6
　　Tomcat 7
　　Eclipse-Luna
　　activiti 6.0

一、启动流程

多种方式启动

package com.wjy.pro;

import org.activiti.engine.ProcessEngine;

import org.activiti.engine.ProcessEngines;

import org.activiti.engine.RepositoryService;

import org.activiti.engine.RuntimeService;

import org.activiti.engine.TaskService;

import org.activiti.engine.repository.Deployment;

import org.activiti.engine.repository.ProcessDefinition;

import org.activiti.engine.runtime.ProcessInstance;

public class Start {

    public static void main(String[] args) {

        ProcessEngine engine = ProcessEngines.getDefaultProcessEngine();

        // 存储服务

        RepositoryService rs = engine.getRepositoryService();

        // 运行时服务

        RuntimeService runService = engine.getRuntimeService();

        // 任务服务

        TaskService taskService = engine.getTaskService();

        // 部署

        Deployment dep = rs.createDeployment().addClasspathResource("start.bpmn").deploy();

        ProcessDefinition pd = rs.createProcessDefinitionQuery().deploymentId(dep.getId()).singleResult();

        // 启动流程

        ProcessInstance pi = runService.startProcessInstanceById(pd.getId(), "abc");

        //根据流程文件中定义process节点的id来启动

        //runService.startProcessInstanceByKey("");

        //根据消息名称启动流程  在流程定义的开始事件中加入消息定义 <messageEventDefinition/>

        //runService.startProcessInstanceByMessage("");

        System.out.println(pi.getId());

    }

}

二、流程操作与数据查询

1、流程触发-ReceiveTask

package com.wjy.handle;

import org.activiti.engine.ProcessEngine;

import org.activiti.engine.ProcessEngines;

import org.activiti.engine.RepositoryService;

import org.activiti.engine.RuntimeService;

import org.activiti.engine.TaskService;

import org.activiti.engine.repository.Deployment;

import org.activiti.engine.repository.ProcessDefinition;

import org.activiti.engine.runtime.Execution;

import org.activiti.engine.runtime.ProcessInstance;

public class ReceiveTaskTest {

    public static void main(String[] args) {

        ProcessEngine engine = ProcessEngines.getDefaultProcessEngine();

        // 存储服务

        RepositoryService rs = engine.getRepositoryService();

        // 运行时服务

        RuntimeService runService = engine.getRuntimeService();

        // 任务服务

        TaskService taskService = engine.getTaskService();

        // 部署ReceiveTask类型任务

        Deployment dep = rs.createDeployment().addClasspathResource("receiveTask.bpmn").deploy();

        ProcessDefinition pd = rs.createProcessDefinitionQuery().deploymentId(dep.getId()).singleResult();

        // 启动流程

        ProcessInstance pi = runService.startProcessInstanceById(pd.getId());

        // 查当前的子执行流（只有一个）

        Execution exe = runService.createExecutionQuery()

                .processInstanceId(pi.getId())

                .onlyChildExecutions()

                .singleResult();

        System.out.println(pi.getId() + ", 当前节点：" + exe.getActivityId());//37505, 当前节点：receivetask1

        // 让它往前走  同complete

        runService.trigger(exe.getId());

        exe = runService.createExecutionQuery()

                .processInstanceId(pi.getId())

                .onlyChildExecutions()

                .singleResult();

        System.out.println(pi.getId() + ", 当前节点：" + exe.getActivityId());//37505, 当前节点：usertask1

    }

}

2、触发信号事件

messaga

package com.wjy.handle;

import org.activiti.engine.ProcessEngine;

import org.activiti.engine.ProcessEngines;

import org.activiti.engine.RepositoryService;

import org.activiti.engine.RuntimeService;

import org.activiti.engine.TaskService;

import org.activiti.engine.repository.Deployment;

import org.activiti.engine.repository.ProcessDefinition;

import org.activiti.engine.runtime.Execution;

import org.activiti.engine.runtime.ProcessInstance;

public class MessageTest {

    public static void main(String[] args) {

        ProcessEngine engine = ProcessEngines.getDefaultProcessEngine();

        // 存储服务

        RepositoryService rs = engine.getRepositoryService();

        // 运行时服务

        RuntimeService runService = engine.getRuntimeService();

        // 任务服务

        TaskService taskService = engine.getTaskService();

        // 部署

        Deployment dep = rs.createDeployment()

                .addClasspathResource("MessageEvent.bpmn").deploy();

        ProcessDefinition pd = rs.createProcessDefinitionQuery()

                .deploymentId(dep.getId())

                .singleResult();

        // 启动流程

        ProcessInstance pi = runService.startProcessInstanceById(pd.getId());

        // 查当前的子执行流（只有一个）

        Execution exe = runService.createExecutionQuery()

                .processInstanceId(pi.getId())

                .onlyChildExecutions()

                .singleResult();

        System.out.println(pi.getId() + ", 当前节点：" + exe.getActivityId());

        // 等待外面发送的消息才会让它往前走

//        <intermediateCatchEvent id="messageintermediatecatchevent1" name="MessageCatchEvent">

//            <messageEventDefinition messageRef="testMsg"></messageEventDefinition>

//        </intermediateCatchEvent>

        runService.messageEventReceived("testMsg", exe.getId());

        exe = runService.createExecutionQuery()

                .processInstanceId(pi.getId())

                .onlyChildExecutions()

                .singleResult();

        System.out.println(pi.getId() + ", 当前节点：" + exe.getActivityId());

    }

}

signal

package com.wjy.handle;

import org.activiti.engine.ProcessEngine;

import org.activiti.engine.ProcessEngines;

import org.activiti.engine.RepositoryService;

import org.activiti.engine.RuntimeService;

import org.activiti.engine.TaskService;

import org.activiti.engine.repository.Deployment;

import org.activiti.engine.repository.ProcessDefinition;

import org.activiti.engine.runtime.Execution;

import org.activiti.engine.runtime.ProcessInstance;

public class SingleEventTest {

    public static void main(String[] args) {

        ProcessEngine engine = ProcessEngines.getDefaultProcessEngine();

        // 存储服务

        RepositoryService rs = engine.getRepositoryService();

        // 运行时服务

        RuntimeService runService = engine.getRuntimeService();

        // 任务服务

        TaskService taskService = engine.getTaskService();

        // 部署

        Deployment dep = rs.createDeployment()

                .addClasspathResource("SingleEvent.bpmn").deploy();

        ProcessDefinition pd = rs.createProcessDefinitionQuery()

                .deploymentId(dep.getId()).singleResult();

        // 启动流程

        ProcessInstance pi = runService.startProcessInstanceById(pd.getId());

        // 查当前的子执行流（只有一个） createExecutionQuery

        Execution exe = runService.createExecutionQuery()

                .processInstanceId(pi.getId())

                .onlyChildExecutions()

                .singleResult();

        System.out.println(pi.getId() + ", 当前节点：" + exe.getActivityId());

        //等待外面传送定义的信号才会执行

//        <intermediateCatchEvent id="signalintermediatecatchevent1" name="SignalCatchEvent">

//            <signalEventDefinition signalRef="testSignal"></signalEventDefinition>

//        </intermediateCatchEvent>

        runService.signalEventReceived("testSignal");

        //流程查询createExecutionQuery

        exe = runService.createExecutionQuery()

                .processInstanceId(pi.getId())

                .onlyChildExecutions()

                .singleResult();

        System.out.println(pi.getId() + ", 当前节点：" + exe.getActivityId());

    }

}

三、工作产生与管理

1、异步任务

<?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="myProcess" name="My process" isExecutable="true">

        <startEvent id="startevent1" name="Start"></startEvent>

        <endEvent id="endevent1" name="End"></endEvent>

        <userTask id="usertask1" name="User Task"></userTask>

        <serviceTask id="servicetask1" name="Service Task" activiti:async="true"

            activiti:class="org.crazyit.act.c10.MyJavaDelegate"></serviceTask>

        <sequenceFlow id="flow1" sourceRef="startevent1"

            targetRef="servicetask1"></sequenceFlow>

        <sequenceFlow id="flow2" sourceRef="servicetask1"

            targetRef="usertask1"></sequenceFlow>

        <sequenceFlow id="flow3" sourceRef="usertask1"

            targetRef="endevent1"></sequenceFlow>

    </process>

    <bpmndi:BPMNDiagram id="BPMNDiagram_myProcess">

        <bpmndi:BPMNPlane bpmnElement="myProcess"

            id="BPMNPlane_myProcess">

            <bpmndi:BPMNShape bpmnElement="startevent1"

                id="BPMNShape_startevent1">

                <omgdc:Bounds height="35.0" width="35.0" x="190.0"

                    y="160.0"></omgdc:Bounds>

            </bpmndi:BPMNShape>

            <bpmndi:BPMNShape bpmnElement="endevent1"

                id="BPMNShape_endevent1">

                <omgdc:Bounds height="35.0" width="35.0" x="620.0"

                    y="160.0"></omgdc:Bounds>

            </bpmndi:BPMNShape>

            <bpmndi:BPMNShape bpmnElement="usertask1"

                id="BPMNShape_usertask1">

                <omgdc:Bounds height="55.0" width="105.0"

                    x="460.0" y="150.0"></omgdc:Bounds>

            </bpmndi:BPMNShape>

            <bpmndi:BPMNShape bpmnElement="servicetask1"

                id="BPMNShape_servicetask1">

                <omgdc:Bounds height="55.0" width="105.0"

                    x="280.0" y="150.0"></omgdc:Bounds>

            </bpmndi:BPMNShape>

            <bpmndi:BPMNEdge bpmnElement="flow1"

                id="BPMNEdge_flow1">

                <omgdi:waypoint x="225.0" y="177.0"></omgdi:waypoint>

                <omgdi:waypoint x="280.0" y="177.0"></omgdi:waypoint>

            </bpmndi:BPMNEdge>

            <bpmndi:BPMNEdge bpmnElement="flow2"

                id="BPMNEdge_flow2">

                <omgdi:waypoint x="385.0" y="177.0"></omgdi:waypoint>

                <omgdi:waypoint x="460.0" y="177.0"></omgdi:waypoint>

            </bpmndi:BPMNEdge>

            <bpmndi:BPMNEdge bpmnElement="flow3"

                id="BPMNEdge_flow3">

                <omgdi:waypoint x="565.0" y="177.0"></omgdi:waypoint>

                <omgdi:waypoint x="620.0" y="177.0"></omgdi:waypoint>

            </bpmndi:BPMNEdge>

        </bpmndi:BPMNPlane>

    </bpmndi:BPMNDiagram>

</definitions>

package com.wjy.job;

import org.activiti.engine.ProcessEngine;

import org.activiti.engine.ProcessEngines;

import org.activiti.engine.RepositoryService;

import org.activiti.engine.RuntimeService;

import org.activiti.engine.TaskService;

import org.activiti.engine.repository.Deployment;

import org.activiti.engine.repository.ProcessDefinition;

import org.activiti.engine.runtime.ProcessInstance;

public class ServieTaskTest {

    public static void main(String[] args) {

        ProcessEngine engine = ProcessEngines.getDefaultProcessEngine();

        // 存储服务

        RepositoryService rs = engine.getRepositoryService();

        // 运行时服务

        RuntimeService runService = engine.getRuntimeService();

        // 任务服务

        TaskService taskService = engine.getTaskService();

        Deployment dep = rs.createDeployment().addClasspathResource("service_task.bpmn").deploy();

        ProcessDefinition pd = rs.createProcessDefinitionQuery().deploymentId(dep.getId()).singleResult();

        ProcessInstance pi = runService.startProcessInstanceById(pd.getId());

        System.out.println(pi.getId());

    }

}

package com.wjy.job;

import org.activiti.engine.delegate.DelegateExecution;

import org.activiti.engine.delegate.JavaDelegate;

public class MyJavaDelegate implements JavaDelegate {

    @Override

    public void execute(DelegateExecution arg0) {

        System.out.println("这是处理类");

    }

}

2、定时任务

<?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="myProcess" name="My process" isExecutable="true">

        <startEvent id="startevent1" name="Start"></startEvent>

        <endEvent id="endevent1" name="End"></endEvent>

        <intermediateCatchEvent id="timerintermediatecatchevent1"

            name="TimerCatchEvent">

            <timerEventDefinition>

                <timeDuration>PT1M</timeDuration>

            </timerEventDefinition>

        </intermediateCatchEvent>

        <userTask id="usertask1" name="User Task"></userTask>

        <sequenceFlow id="flow1" sourceRef="startevent1"

            targetRef="timerintermediatecatchevent1"></sequenceFlow>

        <sequenceFlow id="flow2" sourceRef="timerintermediatecatchevent1"

            targetRef="usertask1"></sequenceFlow>

        <sequenceFlow id="flow3" sourceRef="usertask1"

            targetRef="endevent1"></sequenceFlow>

    </process>

    <bpmndi:BPMNDiagram id="BPMNDiagram_myProcess">

        <bpmndi:BPMNPlane bpmnElement="myProcess"

            id="BPMNPlane_myProcess">

            <bpmndi:BPMNShape bpmnElement="startevent1"

                id="BPMNShape_startevent1">

                <omgdc:Bounds height="35.0" width="35.0" x="110.0"

                    y="160.0"></omgdc:Bounds>

            </bpmndi:BPMNShape>

            <bpmndi:BPMNShape bpmnElement="endevent1"

                id="BPMNShape_endevent1">

                <omgdc:Bounds height="35.0" width="35.0" x="550.0"

                    y="160.0"></omgdc:Bounds>

            </bpmndi:BPMNShape>

            <bpmndi:BPMNShape bpmnElement="timerintermediatecatchevent1"

                id="BPMNShape_timerintermediatecatchevent1">

                <omgdc:Bounds height="35.0" width="35.0" x="220.0"

                    y="160.0"></omgdc:Bounds>

            </bpmndi:BPMNShape>

            <bpmndi:BPMNShape bpmnElement="usertask1"

                id="BPMNShape_usertask1">

                <omgdc:Bounds height="55.0" width="105.0"

                    x="350.0" y="150.0"></omgdc:Bounds>

            </bpmndi:BPMNShape>

            <bpmndi:BPMNEdge bpmnElement="flow1"

                id="BPMNEdge_flow1">

                <omgdi:waypoint x="145.0" y="177.0"></omgdi:waypoint>

                <omgdi:waypoint x="220.0" y="177.0"></omgdi:waypoint>

            </bpmndi:BPMNEdge>

            <bpmndi:BPMNEdge bpmnElement="flow2"

                id="BPMNEdge_flow2">

                <omgdi:waypoint x="255.0" y="177.0"></omgdi:waypoint>

                <omgdi:waypoint x="350.0" y="177.0"></omgdi:waypoint>

            </bpmndi:BPMNEdge>

            <bpmndi:BPMNEdge bpmnElement="flow3"

                id="BPMNEdge_flow3">

                <omgdi:waypoint x="455.0" y="177.0"></omgdi:waypoint>

                <omgdi:waypoint x="550.0" y="177.0"></omgdi:waypoint>

            </bpmndi:BPMNEdge>

        </bpmndi:BPMNPlane>

    </bpmndi:BPMNDiagram>

</definitions>

package com.wjy.job;

import org.activiti.engine.ProcessEngine;

import org.activiti.engine.ProcessEngines;

import org.activiti.engine.RepositoryService;

import org.activiti.engine.RuntimeService;

import org.activiti.engine.TaskService;

import org.activiti.engine.repository.Deployment;

import org.activiti.engine.repository.ProcessDefinition;

import org.activiti.engine.runtime.ProcessInstance;

public class TimerTest {

    public static void main(String[] args) {

        ProcessEngine engine = ProcessEngines.getDefaultProcessEngine();

        // 存储服务

        RepositoryService rs = engine.getRepositoryService();

        // 运行时服务

        RuntimeService runService = engine.getRuntimeService();

        // 任务服务

        TaskService taskService = engine.getTaskService();

        Deployment dep = rs.createDeployment().addClasspathResource("timer_test.bpmn").deploy();

        ProcessDefinition pd = rs.createProcessDefinitionQuery().deploymentId(dep.getId()).singleResult();

        ProcessInstance pi = runService.startProcessInstanceById(pd.getId());

        System.out.println(pi.getId());

    }

}

PT1M：表示1分钟后执行

3、暂停/激活工作

package com.wjy.job;

import org.activiti.engine.ProcessEngine;

import org.activiti.engine.ProcessEngines;

import org.activiti.engine.RepositoryService;

import org.activiti.engine.RuntimeService;

import org.activiti.engine.TaskService;

import org.activiti.engine.repository.Deployment;

import org.activiti.engine.repository.ProcessDefinition;

import org.activiti.engine.runtime.ProcessInstance;

public class SuspendTest {

    public static void main(String[] args) throws Exception {

        ProcessEngine engine = ProcessEngines.getDefaultProcessEngine();

        // 存储服务

        RepositoryService rs = engine.getRepositoryService();

        // 运行时服务

        RuntimeService runService = engine.getRuntimeService();

        // 任务服务

        TaskService taskService = engine.getTaskService();

        Deployment dep = rs.createDeployment().addClasspathResource("suspend_test.bpmn").deploy();

        ProcessDefinition pd = rs.createProcessDefinitionQuery().deploymentId(dep.getId()).singleResult();

        ProcessInstance pi = runService.startProcessInstanceById(pd.getId());

        System.out.println(pi.getId());

        //暂停

        runService.suspendProcessInstanceById(pi.getId());

        //激活

        runService.activateProcessInstanceById(pi.getId());

    }

}

4、异常工作

<?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="myProcess" name="My process" isExecutable="true">

        <startEvent id="startevent1" name="Start"></startEvent>

        <endEvent id="endevent1" name="End"></endEvent>

        <userTask id="usertask1" name="User Task"></userTask>

        <serviceTask id="servicetask1" name="Service Task"

            activiti:async="true"

            activiti:class="com.wjy.job.ExceptionDelegate"></serviceTask>

        <sequenceFlow id="flow1" sourceRef="startevent1"

            targetRef="servicetask1"></sequenceFlow>

        <sequenceFlow id="flow2" sourceRef="servicetask1"

            targetRef="usertask1"></sequenceFlow>

        <sequenceFlow id="flow3" sourceRef="usertask1"

            targetRef="endevent1"></sequenceFlow>

    </process>

    <bpmndi:BPMNDiagram id="BPMNDiagram_myProcess">

        <bpmndi:BPMNPlane bpmnElement="myProcess"

            id="BPMNPlane_myProcess">

            <bpmndi:BPMNShape bpmnElement="startevent1"

                id="BPMNShape_startevent1">

                <omgdc:Bounds height="35.0" width="35.0" x="190.0"

                    y="160.0"></omgdc:Bounds>

            </bpmndi:BPMNShape>

            <bpmndi:BPMNShape bpmnElement="endevent1"

                id="BPMNShape_endevent1">

                <omgdc:Bounds height="35.0" width="35.0" x="620.0"

                    y="160.0"></omgdc:Bounds>

            </bpmndi:BPMNShape>

            <bpmndi:BPMNShape bpmnElement="usertask1"

                id="BPMNShape_usertask1">

                <omgdc:Bounds height="55.0" width="105.0"

                    x="460.0" y="150.0"></omgdc:Bounds>

            </bpmndi:BPMNShape>

            <bpmndi:BPMNShape bpmnElement="servicetask1"

                id="BPMNShape_servicetask1">

                <omgdc:Bounds height="55.0" width="105.0"

                    x="280.0" y="150.0"></omgdc:Bounds>

            </bpmndi:BPMNShape>

            <bpmndi:BPMNEdge bpmnElement="flow1"

                id="BPMNEdge_flow1">

                <omgdi:waypoint x="225.0" y="177.0"></omgdi:waypoint>

                <omgdi:waypoint x="280.0" y="177.0"></omgdi:waypoint>

            </bpmndi:BPMNEdge>

            <bpmndi:BPMNEdge bpmnElement="flow2"

                id="BPMNEdge_flow2">

                <omgdi:waypoint x="385.0" y="177.0"></omgdi:waypoint>

                <omgdi:waypoint x="460.0" y="177.0"></omgdi:waypoint>

            </bpmndi:BPMNEdge>

            <bpmndi:BPMNEdge bpmnElement="flow3"

                id="BPMNEdge_flow3">

                <omgdi:waypoint x="565.0" y="177.0"></omgdi:waypoint>

                <omgdi:waypoint x="620.0" y="177.0"></omgdi:waypoint>

            </bpmndi:BPMNEdge>

        </bpmndi:BPMNPlane>

    </bpmndi:BPMNDiagram>

</definitions>

package com.wjy.job;

import org.activiti.engine.ManagementService;

import org.activiti.engine.ProcessEngine;

import org.activiti.engine.ProcessEngines;

import org.activiti.engine.RepositoryService;

import org.activiti.engine.RuntimeService;

import org.activiti.engine.TaskService;

import org.activiti.engine.repository.Deployment;

import org.activiti.engine.repository.ProcessDefinition;

import org.activiti.engine.runtime.Job;

import org.activiti.engine.runtime.ProcessInstance;

public class ErrorServieTaskTest {

    public static void main(String[] args) {

        ProcessEngine engine = ProcessEngines.getDefaultProcessEngine();

        // 存储服务

        RepositoryService rs = engine.getRepositoryService();

        // 运行时服务

        RuntimeService runService = engine.getRuntimeService();

        // 任务服务

        TaskService taskService = engine.getTaskService();

        ManagementService managementService = engine.getManagementService();

        Deployment dep = rs.createDeployment().addClasspathResource("error_task.bpmn").deploy();

        ProcessDefinition pd = rs.createProcessDefinitionQuery().deploymentId(dep.getId()).singleResult();

        ProcessInstance pi = runService.startProcessInstanceById(pd.getId());

        System.out.println(pi.getId());

        Job job = managementService.createJobQuery().singleResult();

        managementService.setJobRetries(job.getId(), 1);

        managementService.executeJob(job.getId());

    }

}

package com.wjy.job;

import org.activiti.engine.delegate.DelegateExecution;

import org.activiti.engine.delegate.JavaDelegate;

public class ExceptionDelegate implements JavaDelegate {

    @Override

    public void execute(DelegateExecution arg0) {

        System.out.println("这是处理类");

        throw new RuntimeException("always exception");

    }

}

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