第十六篇Flowable事件之结束事件
Posted 波波烤鸭
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Flowable结束事件
结束事件顾名思义就是流程结束的事件，除了前面遇到的空结束事件外，结束事件还包括如下几种：
- 错误结束事件
- 中断结束事件
- 取消结束事件
1.错误结束事件
当流程执行到达**错误结束事件（error end event）**时，结束执行的当前分支，并抛出错误。这个错误可以由匹配的错误边界中间事件捕获。如果找不到匹配的错误边界事件，将会抛出异常。通过具体案例来详细讲解：
完整的xml文件
<?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: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">
<error id="error03" errorCode="error03" ></error>
<process id="event5001" name="错误结束事件" isExecutable="true">
<startEvent id="start01" name="开始任务" flowable:formFieldValidation="true"></startEvent>
<subProcess id="sid-794CA748-4381-417F-8350-360E89907E84" name="subProcess">
<startEvent id="startc01" name="开始子流程" flowable:formFieldValidation="true"></startEvent>
<serviceTask id="task01" name="自动任务一" flowable:class="com.bobo.flow.delegate.MyOneJavaDelegate"></serviceTask>
<exclusiveGateway id="p001" name="排他网关"></exclusiveGateway>
<endEvent id="endc01" name="子流程结束"></endEvent>
<endEvent id="errorend01" name="错误结束事件">
<errorEventDefinition errorRef="error03" flowable:errorVariableLocalScope="true" flowable:errorVariableTransient="true"></errorEventDefinition>
</endEvent>
<sequenceFlow id="sid-1B2782FA-5216-4817-B964-A77EDEBB7547" sourceRef="startc01" targetRef="task01"></sequenceFlow>
<sequenceFlow id="sid-D2196400-20DC-4D6B-AAD2-AA9308CE8DEA" sourceRef="task01" targetRef="p001"></sequenceFlow>
<sequenceFlow id="sid-DEC53745-1E74-4D08-B472-95F9A6B92D98" sourceRef="p001" targetRef="errorend01">
<conditionExpression xsi:type="tFormalExpression"><![CDATA[$flag<=0]]></conditionExpression>
</sequenceFlow>
</subProcess>
<sequenceFlow id="sid-934F4EDF-16A9-4D4E-8D7A-4F8E1EEB0F9E" sourceRef="start01" targetRef="sid-794CA748-4381-417F-8350-360E89907E84"></sequenceFlow>
<serviceTask id="task2" name="自动任务二" flowable:class="com.bobo.flow.delegate.MyTwoJavaDelegate"></serviceTask>
<sequenceFlow id="sid-E8166885-00F6-49A1-BE26-3AB98FE95455" sourceRef="sid-794CA748-4381-417F-8350-360E89907E84" targetRef="task2"></sequenceFlow>
<endEvent id="end02" name="主流程结束"></endEvent>
<sequenceFlow id="sid-496A30AE-44AC-4298-83E0-3183F3FF935B" sourceRef="task2" targetRef="end02"></sequenceFlow>
<boundaryEvent id="perror01" name="边界错误事件" attachedToRef="sid-794CA748-4381-417F-8350-360E89907E84">
<errorEventDefinition errorRef="error03" flowable:errorVariableLocalScope="true" flowable:errorVariableTransient="true"></errorEventDefinition>
</boundaryEvent>
<sequenceFlow id="sid-9562301E-B400-4D1F-89B8-23E69ADEAE68" sourceRef="perror01" targetRef="task3"></sequenceFlow>
<serviceTask id="task3" name="自动任务三" flowable:class="com.bobo.flow.delegate.MyThreeJavaDelegate"></serviceTask>
<endEvent id="end003" name="主流程结束"></endEvent>
<sequenceFlow id="sid-436E29BF-7F5E-4A4B-8F62-C0AEA010F4D2" sourceRef="task3" targetRef="end003"></sequenceFlow>
<sequenceFlow id="sid-C17C73A1-5853-496B-B686-E7911105D459" sourceRef="sid-794CA748-4381-417F-8350-360E89907E84" targetRef="endc01">
<conditionExpression xsi:type="tFormalExpression"><![CDATA[$flag>0]]></conditionExpression>
</sequenceFlow>
</process>
<bpmndi:BPMNDiagram id="BPMNDiagram_event5001">
<bpmndi:BPMNPlane bpmnElement="event5001" id="BPMNPlane_event5001">
<bpmndi:BPMNShape bpmnElement="start01" id="BPMNShape_start01">
<omgdc:Bounds height="30.0" width="30.0" x="75.0" y="205.5"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="sid-794CA748-4381-417F-8350-360E89907E84" id="BPMNShape_sid-794CA748-4381-417F-8350-360E89907E84">
<omgdc:Bounds height="261.0" width="593.0" x="240.0" y="90.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="startc01" id="BPMNShape_startc01">
<omgdc:Bounds height="30.0" width="30.0" x="285.0" y="199.5"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="task01" id="BPMNShape_task01">
<omgdc:Bounds height="80.0" width="100.0" x="418.5" y="174.5"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="p001" id="BPMNShape_p001">
<omgdc:Bounds height="40.0" width="40.0" x="563.5" y="194.5"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="endc01" id="BPMNShape_endc01">
<omgdc:Bounds height="28.0" width="28.0" x="675.0" y="150.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="errorend01" id="BPMNShape_errorend01">
<omgdc:Bounds height="28.0" width="28.0" x="675.0" y="255.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="task2" id="BPMNShape_task2">
<omgdc:Bounds height="80.0" width="100.0" x="942.5" y="176.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="end02" id="BPMNShape_end02">
<omgdc:Bounds height="28.0" width="28.0" x="1087.5" y="202.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="perror01" id="BPMNShape_perror01">
<omgdc:Bounds height="30.0" width="30.0" x="478.02252392098524" y="336.450017237985"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="task3" id="BPMNShape_task3">
<omgdc:Bounds height="80.0" width="100.0" x="665.5" y="406.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="end003" id="BPMNShape_end003">
<omgdc:Bounds height="28.0" width="28.0" x="810.5" y="432.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNEdge bpmnElement="sid-934F4EDF-16A9-4D4E-8D7A-4F8E1EEB0F9E" id="BPMNEdge_sid-934F4EDF-16A9-4D4E-8D7A-4F8E1EEB0F9E" flowable:sourceDockerX="15.0" flowable:sourceDockerY="15.0" flowable:targetDockerX="296.5" flowable:targetDockerY="130.5">
<omgdi:waypoint x="104.9499999082861" y="220.5"></omgdi:waypoint>
<omgdi:waypoint x="240.0" y="220.5"></omgdi:waypoint>
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge bpmnElement="sid-9562301E-B400-4D1F-89B8-23E69ADEAE68" id="BPMNEdge_sid-9562301E-B400-4D1F-89B8-23E69ADEAE68" flowable:sourceDockerX="15.0" flowable:sourceDockerY="15.0" flowable:targetDockerX="1.0" flowable:targetDockerY="40.0">
<omgdi:waypoint x="493.02252392098524" y="366.40001519452954"></omgdi:waypoint>
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