工作流引擎Activiti学习---使用流程变量进行个人任务分配

package com.activiti.study.personalTask;

import java.io.InputStream;
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 PersonalTask {

/**
*加载默认的流程引擎： 加载 activiti.cfg.xml 文件
*/
ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();

/**
* 部署流程定义
*/
@Test
public void testDeployProcessDefination_inputStream(){

/**
-- 从classPath根目录下加载指定名称的文件
this.getClass().getClassLoader().getResourceAsStream("/diagrams/ProcessVariables.bpmn");

-- 从当前包下加载指定名称的文件
this.getClass().getResourceAsStream("diagrams/ProcessVariables.bpmn");

-- 从classPath根目录下加载指定名称的文件
this.getClass().getResourceAsStream("/diagrams/ProcessVariables.bpmn");
*/

InputStream inputStreamBpmn = this.getClass().getResourceAsStream("task.bpmn");
InputStream inputStreamPng = this.getClass().getResourceAsStream("task.png");

Deployment deployment = processEngine.getRepositoryService()
.createDeployment()
.name("个人任务分配") //设定流程名称
.addInputStream("task.bpmn", inputStreamBpmn)
.addInputStream("task.png", inputStreamPng)
.deploy();
System.out.println("Id: " + deployment.getId());
System.out.println("Name: " + deployment.getName());
System.out.println("Category: " + deployment.getCategory());
}

/**
* 启动流程
*/
@Test
public void testStartProcessDefination(){
String processDefinationKey = "personalTask";
ProcessInstance pi = processEngine.getRuntimeService().startProcessInstanceByKey(processDefinationKey);
System.out.println("Key--->>>" + pi.getBusinessKey());
System.out.println("ActivityId--->>>" + pi.getActivityId());
System.out.println("DefinitionId--->>>" + pi.getProcessDefinitionId());
System.out.println("ProcessInstanceId--->>>" + pi.getProcessInstanceId());

}

/**
* 查询个人任务
*/
@Test
public void findPersonalTask(){
/**获取任务id*/
String assignee = "Lucy";
List<Task> tasks = processEngine.getTaskService()
.createTaskQuery()
.taskAssignee(assignee)
.list();
for(Task task: tasks){
System.out.println("\n------------------\nId: " + task.getId()+ "\nAssignee: " + task.getAssignee() + "\nProcessInstanceId: " + task.getProcessInstanceId());
}
}

/**
* 完成任务
*/
@Test
public void testCompleteTask(){
String taskId = "1104";
processEngine.getTaskService().complete(taskId);
System.out.println(taskId + " has Done.");
}

}

<?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="personalTask" name="Personal Task" isExecutable="true">
<startEvent id="startevent1" name="Start"></startEvent>
<userTask id="userTask001" name="User Task" activiti:assignee="Lucy"></userTask>
<sequenceFlow id="flow1" sourceRef="startevent1" targetRef="userTask001"></sequenceFlow>
<endEvent id="endevent1" name="End"></endEvent>
<sequenceFlow id="flow2" sourceRef="userTask001" targetRef="endevent1"></sequenceFlow>
</process>
<bpmndi:BPMNDiagram id="BPMNDiagram_personalTask">
<bpmndi:BPMNPlane bpmnElement="personalTask" id="BPMNPlane_personalTask">
<bpmndi:BPMNShape bpmnElement="startevent1" id="BPMNShape_startevent1">
<omgdc:Bounds height="35.0" width="35.0" x="333.0" y="40.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="userTask001" id="BPMNShape_userTask001">
<omgdc:Bounds height="55.0" width="105.0" x="298.0" y="160.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="endevent1" id="BPMNShape_endevent1">
<omgdc:Bounds height="35.0" width="35.0" x="333.0" y="330.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNEdge bpmnElement="flow1" id="BPMNEdge_flow1">
<omgdi:waypoint x="350.0" y="75.0"></omgdi:waypoint>
<omgdi:waypoint x="350.0" y="160.0"></omgdi:waypoint>
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge bpmnElement="flow2" id="BPMNEdge_flow2">
<omgdi:waypoint x="350.0" y="215.0"></omgdi:waypoint>
<omgdi:waypoint x="350.0" y="330.0"></omgdi:waypoint>
</bpmndi:BPMNEdge>
</bpmndi:BPMNPlane>
</bpmndi:BPMNDiagram>
</definitions>