Flowable工作流之候选人

1. 前言

有的时候，一个任务节点会存在多个候选人，例如 zhangsan 提交一个任务，这个任务既可以 lisi 处理，又可以 wangwu 处理，那么针对这种多个任务候选人的情况，我们该如何处理？今天一起来看看

2. 候选人的相关处理

2.1. 绘制流程图

首先我们使用的流程图如上，但是在为 提交请假申请 设置分配用户的时候，我们设置多个用户，如下图

设置完成后，我们下载这个流程文件，来看下对应的 XML 文件

<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:flowable="http://flowable.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.flowable.org/processdef" exporter="Flowable Open Source Modeler"
             exporterVersion="6.7.2">
    <process id="Leave2" name="Leave2" isExecutable="true">
        <documentation>公司请假申请流程documentation>
        <startEvent id="sid-EDEC0102-C387-4F9A-B5EF-157587793A4D" flowable:formFieldValidation="true">startEvent>
        <userTask id="userId" name="请假申请" flowable:candidateUsers="${candidate1},${candidate2},${candidate3}"
                  flowable:formFieldValidation="true">userTask>
        <sequenceFlow id="sid-A62E0666-ABAF-4A31-B7A6-43157D7F59B2" sourceRef="sid-EDEC0102-C387-4F9A-B5EF-157587793A4D"
                      targetRef="userId">sequenceFlow>
        <sequenceFlow id="sid-0EED4703-83C6-4B57-9015-A75B06927C0C" sourceRef="userId"
                      targetRef="sid-FF0BB60C-47D5-4DB5-8C3E-C21A1DFC1F81">sequenceFlow>
        <parallelGateway id="sid-FF0BB60C-47D5-4DB5-8C3E-C21A1DFC1F81">parallelGateway>
        <userTask id="xmjlId" name="项目经理审批" flowable:assignee="${ProjectManager}" flowable:formFieldValidation="true">
            <extensionElements>
                <modeler:initiator-can-complete xmlns:modeler="http://flowable.org/modeler">
                    modeler:initiator-can-complete>
            extensionElements>
        userTask>
        <userTask id="jsjlId" name="技术经理审批" flowable:assignee="${TechnicalManager}" flowable:formFieldValidation="true">
            <extensionElements>
                <modeler:initiator-can-complete xmlns:modeler="http://flowable.org/modeler">
                    modeler:initiator-can-complete>
            extensionElements>
        userTask>
        <sequenceFlow id="sid-7A21D68A-3115-447A-B147-CDC6144D6D71" sourceRef="sid-FF0BB60C-47D5-4DB5-8C3E-C21A1DFC1F81"
                      targetRef="jsjlId">sequenceFlow>
        <sequenceFlow id="sid-EF7EDB7C-3719-485D-85C6-EDF2DA8DBE33" sourceRef="sid-FF0BB60C-47D5-4DB5-8C3E-C21A1DFC1F81"
                      targetRef="xmjlId">sequenceFlow>
        <sequenceFlow id="sid-25F6DB53-F695-4A0D-BBFC-6B8A45371EDF" sourceRef="jsjlId"
                      targetRef="sid-B961DC17-1F54-4B6B-BCA9-9EA15DEFDC29">sequenceFlow>
        <parallelGateway id="sid-B961DC17-1F54-4B6B-BCA9-9EA15DEFDC29">parallelGateway>
        <sequenceFlow id="sid-C7AA05DF-F958-476D-8710-F9B8DD51BE85" sourceRef="xmjlId"
                      targetRef="sid-B961DC17-1F54-4B6B-BCA9-9EA15DEFDC29">sequenceFlow>
        <exclusiveGateway id="sid-3C064FB3-2132-4C38-88E0-F1AD3CA14A1C">exclusiveGateway>
        <sequenceFlow id="sid-4C96EBB0-7EAC-4FD5-BF06-6551F53C9D0D" sourceRef="sid-B961DC17-1F54-4B6B-BCA9-9EA15DEFDC29"
                      targetRef="sid-3C064FB3-2132-4C38-88E0-F1AD3CA14A1C">sequenceFlow>
        <userTask id="zjlId" name="总经理审批" flowable:assignee="${boss}" flowable:formFieldValidation="true">
            <extensionElements>
                <modeler:initiator-can-complete xmlns:modeler="http://flowable.org/modeler">
                    modeler:initiator-can-complete>
            extensionElements>
        userTask>
        <endEvent id="sid-94B5337F-CEDF-4FF3-A051-C90E82D4E670">endEvent>
        <sequenceFlow id="sid-3E165D65-0F3E-4BE1-A3A4-980746B9B473" sourceRef
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