最近工作中有用到工作流的开发,引入了flowable工作流框架,在此记录一下springboot整合flowable工作流框架的过程,以便后续再次使用到时可以做一些参考使用,如果项目中有涉及到流程审批的话,可以使用该框架帮我们实现流程图示化展示的功能,为了快速了解flowable工作流框架的一个使用过程,我们直接步入主题,springboot整合flowable工作流框架的步骤如下:
1、首先创建一个springboot工程,然后引入flowable pom依赖,代码如下:
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<dependency> <groupId>org.flowable</groupId> <artifactId>flowable-spring-boot-starter</artifactId> <version> 6.7 . 0 </version> </dependency> |
2、创建流程图定义文档
这里有一个使用flowable-ui可视化的工程来创建流程图定义文档,https://www.wandouip.com/t5i212543/,具体实施过程如下:
先从 https://github.com/flowable/flowable-engine/releases 上下载一个发布文档,这里选择Flowable 6.7.2 release;然后解压缩文件,将里面的wars文档下的两个jar包(flowable-rest.war、flowable-ui.war)部署到tomcat下,放到webapps文件加下,点击运行,运行存在一个解压缩文件的过程,会产生flowable-rest、flowable-ui文件夹,浏览器输入 http://localhost:8080/flowable-ui,如下图:
用户名密码输入admin/test,如下图:
点击建模器应用程序,点击右上角”创建流程“,填写相关信息,进去后就可以可视化地创建流程,如下图:
上面初步展示了使用可视化制作工具制作流程图的过程,然后导出BPMN2文件,文件内容大概如下:
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<? 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" > < process id = "test" name = "test" isExecutable = "true" > < startEvent id = "startEvent1" flowable:formFieldValidation = "true" ></ startEvent > < userTask id = "sid-EE908BC6-94A5-4C9A-B53A-68890D1241BB" name = "初级管理员" flowable:formFieldValidation = "true" ></ userTask > < sequenceFlow id = "sid-BD25A451-66F1-4AF1-B954-5EE5BC5A5782" sourceRef = "startEvent1" targetRef = "sid-EE908BC6-94A5-4C9A-B53A-68890D1241BB" ></ sequenceFlow > < exclusiveGateway id = "sid-57C003F8-C0F3-4499-8B1D-0B29223DB541" ></ exclusiveGateway > < sequenceFlow id = "sid-D9571C82-9071-41EA-9858-D10FF50B4396" sourceRef = "sid-EE908BC6-94A5-4C9A-B53A-68890D1241BB" targetRef = "sid-57C003F8-C0F3-4499-8B1D-0B29223DB541" ></ sequenceFlow > < userTask id = "sid-1EF0B969-8092-4EC5-9899-16D066122EC8" name = "高级管理员" flowable:formFieldValidation = "true" ></ userTask > < sequenceFlow id = "sid-7E40EF52-4ED7-4785-954B-3530C3400D81" sourceRef = "sid-57C003F8-C0F3-4499-8B1D-0B29223DB541" targetRef = "sid-1EF0B969-8092-4EC5-9899-16D066122EC8" ></ sequenceFlow > < intermediateThrowEvent id = "sid-13E2B97C-78C9-4A4B-BAD8-A47038668B5F" ></ intermediateThrowEvent > < sequenceFlow id = "sid-72B217BF-4F36-446E-B48F-741E3F38B66F" sourceRef = "sid-57C003F8-C0F3-4499-8B1D-0B29223DB541" targetRef = "sid-13E2B97C-78C9-4A4B-BAD8-A47038668B5F" ></ sequenceFlow > < exclusiveGateway id = "sid-DB335453-27CB-4992-824A-3C060312F59F" ></ exclusiveGateway > < sequenceFlow id = "sid-60B0EF34-8DB4-421C-A265-59E8A5B7C35F" sourceRef = "sid-1EF0B969-8092-4EC5-9899-16D066122EC8" targetRef = "sid-DB335453-27CB-4992-824A-3C060312F59F" ></ sequenceFlow > < intermediateThrowEvent id = "sid-D6512D07-3215-48FC-A568-227A718EC174" ></ intermediateThrowEvent > < sequenceFlow id = "sid-0ABE9D33-F08C-4787-A827-27639909C63A" sourceRef = "sid-DB335453-27CB-4992-824A-3C060312F59F" targetRef = "sid-D6512D07-3215-48FC-A568-227A718EC174" ></ sequenceFlow > < intermediateThrowEvent id = "sid-3F43BAB4-6D7A-4705-A527-D78CF919EEC2" ></ intermediateThrowEvent > < sequenceFlow id = "sid-50C31AEE-6B3A-48A2-92D3-7D640E5FF60E" sourceRef = "sid-DB335453-27CB-4992-824A-3C060312F59F" targetRef = "sid-3F43BAB4-6D7A-4705-A527-D78CF919EEC2" ></ sequenceFlow > </ process > < bpmndi:BPMNDiagram id = "BPMNDiagram_test" > < bpmndi:BPMNPlane bpmnElement = "test" id = "BPMNPlane_test" > < bpmndi:BPMNShape bpmnElement = "startEvent1" id = "BPMNShape_startEvent1" > < omgdc:Bounds height = "30.0" width = "30.0" x = "90.0" y = "166.0" ></ omgdc:Bounds > </ bpmndi:BPMNShape > < bpmndi:BPMNShape bpmnElement = "sid-EE908BC6-94A5-4C9A-B53A-68890D1241BB" id = "BPMNShape_sid-EE908BC6-94A5-4C9A-B53A-68890D1241BB" > < omgdc:Bounds height = "80.0" width = "100.0" x = "240.0" y = "141.0" ></ omgdc:Bounds > </ bpmndi:BPMNShape > < bpmndi:BPMNShape bpmnElement = "sid-57C003F8-C0F3-4499-8B1D-0B29223DB541" id = "BPMNShape_sid-57C003F8-C0F3-4499-8B1D-0B29223DB541" > < omgdc:Bounds height = "40.0" width = "40.0" x = "385.0" y = "161.0" ></ omgdc:Bounds > </ bpmndi:BPMNShape > < bpmndi:BPMNShape bpmnElement = "sid-1EF0B969-8092-4EC5-9899-16D066122EC8" id = "BPMNShape_sid-1EF0B969-8092-4EC5-9899-16D066122EC8" > < omgdc:Bounds height = "80.0" width = "100.0" x = "470.0" y = "141.0" ></ omgdc:Bounds > </ bpmndi:BPMNShape > < bpmndi:BPMNShape bpmnElement = "sid-13E2B97C-78C9-4A4B-BAD8-A47038668B5F" id = "BPMNShape_sid-13E2B97C-78C9-4A4B-BAD8-A47038668B5F" > < omgdc:Bounds height = "30.0" width = "30.0" x = "390.0" y = "270.0" ></ omgdc:Bounds > </ bpmndi:BPMNShape > < bpmndi:BPMNShape bpmnElement = "sid-DB335453-27CB-4992-824A-3C060312F59F" id = "BPMNShape_sid-DB335453-27CB-4992-824A-3C060312F59F" > < omgdc:Bounds height = "40.0" width = "40.0" x = "615.0" y = "161.0" ></ omgdc:Bounds > </ bpmndi:BPMNShape > < bpmndi:BPMNShape bpmnElement = "sid-D6512D07-3215-48FC-A568-227A718EC174" id = "BPMNShape_sid-D6512D07-3215-48FC-A568-227A718EC174" > < omgdc:Bounds height = "30.0" width = "30.0" x = "700.0" y = "166.0" ></ omgdc:Bounds > </ bpmndi:BPMNShape > < bpmndi:BPMNShape bpmnElement = "sid-3F43BAB4-6D7A-4705-A527-D78CF919EEC2" id = "BPMNShape_sid-3F43BAB4-6D7A-4705-A527-D78CF919EEC2" > < omgdc:Bounds height = "30.0" width = "30.0" x = "620.0" y = "270.0" ></ omgdc:Bounds > </ bpmndi:BPMNShape > < bpmndi:BPMNEdge bpmnElement = "sid-0ABE9D33-F08C-4787-A827-27639909C63A" id = "BPMNEdge_sid-0ABE9D33-F08C-4787-A827-27639909C63A" flowable:sourceDockerX = "20.5" flowable:sourceDockerY = "20.5" flowable:targetDockerX = "15.0" flowable:targetDockerY = "15.0" > < omgdi:waypoint x = "654.557806573957" y = "181.379746835443" ></ omgdi:waypoint > < omgdi:waypoint x = "700.0002881553987" y = "181.0940234142237" ></ omgdi:waypoint > </ bpmndi:BPMNEdge > < bpmndi:BPMNEdge bpmnElement = "sid-72B217BF-4F36-446E-B48F-741E3F38B66F" id = "BPMNEdge_sid-72B217BF-4F36-446E-B48F-741E3F38B66F" flowable:sourceDockerX = "20.5" flowable:sourceDockerY = "20.5" flowable:targetDockerX = "15.5" flowable:targetDockerY = "3.0" > < omgdi:waypoint x = "405.5" y = "200.43965611353715" ></ omgdi:waypoint > < omgdi:waypoint x = "405.5" y = "270.0" ></ omgdi:waypoint > </ bpmndi:BPMNEdge > < bpmndi:BPMNEdge bpmnElement = "sid-BD25A451-66F1-4AF1-B954-5EE5BC5A5782" id = "BPMNEdge_sid-BD25A451-66F1-4AF1-B954-5EE5BC5A5782" flowable:sourceDockerX = "15.0" flowable:sourceDockerY = "15.0" flowable:targetDockerX = "50.0" flowable:targetDockerY = "40.0" > < omgdi:waypoint x = "119.94999946593475" y = "181.0" ></ omgdi:waypoint > < omgdi:waypoint x = "239.9999999999298" y = "181.0" ></ omgdi:waypoint > </ bpmndi:BPMNEdge > < bpmndi:BPMNEdge bpmnElement = "sid-D9571C82-9071-41EA-9858-D10FF50B4396" id = "BPMNEdge_sid-D9571C82-9071-41EA-9858-D10FF50B4396" flowable:sourceDockerX = "50.0" flowable:sourceDockerY = "40.0" flowable:targetDockerX = "20.5" flowable:targetDockerY = "20.5" > < omgdi:waypoint x = "339.9499999999977" y = "181.21623376623376" ></ omgdi:waypoint > < omgdi:waypoint x = "385.4130434782609" y = "181.41304347826087" ></ omgdi:waypoint > </ bpmndi:BPMNEdge > < bpmndi:BPMNEdge bpmnElement = "sid-7E40EF52-4ED7-4785-954B-3530C3400D81" id = "BPMNEdge_sid-7E40EF52-4ED7-4785-954B-3530C3400D81" flowable:sourceDockerX = "20.5" flowable:sourceDockerY = "20.5" flowable:targetDockerX = "50.0" flowable:targetDockerY = "40.0" > < omgdi:waypoint x = "424.52473707274277" y = "181.41666666666666" ></ omgdi:waypoint > < omgdi:waypoint x = "469.99999999999386" y = "181.21812227074238" ></ omgdi:waypoint > </ bpmndi:BPMNEdge > < bpmndi:BPMNEdge bpmnElement = "sid-60B0EF34-8DB4-421C-A265-59E8A5B7C35F" id = "BPMNEdge_sid-60B0EF34-8DB4-421C-A265-59E8A5B7C35F" flowable:sourceDockerX = "50.0" flowable:sourceDockerY = "40.0" flowable:targetDockerX = "20.5" flowable:targetDockerY = "20.5" > < omgdi:waypoint x = "569.9499999999981" y = "181.21623376623378" ></ omgdi:waypoint > < omgdi:waypoint x = "615.4130434782609" y = "181.41304347826087" ></ omgdi:waypoint > </ bpmndi:BPMNEdge > < bpmndi:BPMNEdge bpmnElement = "sid-50C31AEE-6B3A-48A2-92D3-7D640E5FF60E" id = "BPMNEdge_sid-50C31AEE-6B3A-48A2-92D3-7D640E5FF60E" flowable:sourceDockerX = "20.5" flowable:sourceDockerY = "20.5" flowable:targetDockerX = "15.0" flowable:targetDockerY = "15.0" > < omgdi:waypoint x = "635.4077669902913" y = "200.53271096023283" ></ omgdi:waypoint > < omgdi:waypoint x = "635.072221397189" y = "270.00017140256364" ></ omgdi:waypoint > </ bpmndi:BPMNEdge > </ bpmndi:BPMNPlane > </ bpmndi:BPMNDiagram > </ definitions > |
以上初步实现怎么使用可视化工具来创建流程图定义文件,里面更为具体的使用方法还有待探索,上面的步骤执行完毕后,我们就可以运行我们的springboot工程了,在配置文件中配置好数据库链接相关的信息后,然后配置flowable相关信息:
flowable:
aysnc-executor-activate: false
database-schema-update: true
process-definition-location-prefix: classpath*:/processes/
process-definition-location-suffixes: "**.bpmn20.xml, **.bpmn"
上面的信息配置完毕后,就可以运行我们的工程了,在运行工程之前,在工程的resources文件夹下创建一个processes文件夹,我们的流程定义文档就放在这个文件夹下,创建一个process-test.bpmn20.xml放到processes文件夹下,具体内容定义如下:
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<? 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 = "processTest" name = "Request Resource Approval " isExecutable = "true" > < startEvent id = "starter" name = "Starter" ></ startEvent > < serviceTask id = "sendJuniorRejectEmail" name = "发送初级审批拒绝邮件" activiti:class = "com.chinaums.web.controller.flowable2.delegate.SendJuniorRejectionMailDelegate" > </ serviceTask > < endEvent id = "juniorRejectEnd" name = "Junior Reject End" ></ endEvent > < sequenceFlow id = "flow5" sourceRef = "sendJuniorRejectEmail" targetRef = "juniorRejectEnd" ></ sequenceFlow > < userTask id = "seniorApproval" name = "高级审批" activiti:assignee = "${seniorAdmin}" ></ userTask > < userTask id = "juniorApproval" name = "初级审批" activiti:assignee = "${juniorAdmin}" ></ userTask > < exclusiveGateway id = "exclusivegateway1" name = "Exclusive Gateway1" ></ exclusiveGateway > < sequenceFlow id = "juniorSuccessFlow" name = "同意" sourceRef = "exclusivegateway1" targetRef = "seniorApproval" > < conditionExpression xsi:type = "tFormalExpression" > <![CDATA[${approved=='Y'}]]> </ conditionExpression > </ sequenceFlow > < sequenceFlow id = "juniorRejectFlow" name = "拒绝" sourceRef = "exclusivegateway1" targetRef = "sendJuniorRejectEmail" > < conditionExpression xsi:type = "tFormalExpression" > <![CDATA[${approved=='N'}]]> </ conditionExpression > </ sequenceFlow > < exclusiveGateway id = "exclusivegateway2" name = "Exclusive Gateway2" ></ exclusiveGateway > < sequenceFlow id = "flow7" sourceRef = "seniorApproval" targetRef = "exclusivegateway2" ></ sequenceFlow > < endEvent id = "approvalSuccessEnd" name = "Approval Success End" ></ endEvent > < sequenceFlow id = "seniorSuccessFlow" name = "同意" sourceRef = "exclusivegateway2" targetRef = "sendApprovalSuccessEmail" > < conditionExpression xsi:type = "tFormalExpression" > <![CDATA[${approved=='Y'}]]> </ conditionExpression > </ sequenceFlow > < serviceTask id = "sendSeniorRejectEmail" name = "发送高级审批拒绝邮件" activiti:class = "com.chinaums.web.controller.flowable2.delegate.SendSeniorRejectionMailDelegate" > </ serviceTask > < endEvent id = "seniorRejectEnd" name = "Senior Reject End" ></ endEvent > < sequenceFlow id = "seniorRejectFlow" name = "拒绝" sourceRef = "exclusivegateway2" targetRef = "sendSeniorRejectEmail" > < conditionExpression xsi:type = "tFormalExpression" > <![CDATA[${approved=='N'}]]> </ conditionExpression > </ sequenceFlow > < sequenceFlow id = "flow9" sourceRef = "sendSeniorRejectEmail" targetRef = "seniorRejectEnd" ></ sequenceFlow > < sequenceFlow id = "flow11" sourceRef = "juniorApproval" targetRef = "exclusivegateway1" ></ sequenceFlow > < sequenceFlow id = "flow12" sourceRef = "starter" targetRef = "juniorApproval" ></ sequenceFlow > < serviceTask id = "sendApprovalSuccessEmail" name = "发送审批通过邮件" activiti:class = "com.chinaums.web.controller.flowable2.delegate.SendApprovalSuccessEmailDelegate" ></ serviceTask > < sequenceFlow id = "flow13" sourceRef = "sendApprovalSuccessEmail" targetRef = "approvalSuccessEnd" ></ sequenceFlow > </ process > < bpmndi:BPMNDiagram id = "BPMNDiagram_requestResourceApprovalProcess" > < bpmndi:BPMNPlane bpmnElement = "requestResourceApprovalProcess" id = "BPMNPlane_requestResourceApprovalProcess" > < bpmndi:BPMNShape bpmnElement = "starter" id = "BPMNShape_starter" > < omgdc:Bounds height = "35.0" width = "35.0" x = "45.0" y = "118.0" ></ omgdc:Bounds > </ bpmndi:BPMNShape > < bpmndi:BPMNShape bpmnElement = "sendJuniorRejectEmail" id = "BPMNShape_sendJuniorRejectEmail" > < omgdc:Bounds height = "71.0" width = "171.0" x = "340.0" y = "230.0" ></ omgdc:Bounds > </ bpmndi:BPMNShape > < bpmndi:BPMNShape bpmnElement = "juniorRejectEnd" id = "BPMNShape_juniorRejectEnd" > < omgdc:Bounds height = "35.0" width = "35.0" x = "408.0" y = "385.0" ></ omgdc:Bounds > </ bpmndi:BPMNShape > < bpmndi:BPMNShape bpmnElement = "seniorApproval" id = "BPMNShape_seniorApproval" > < omgdc:Bounds height = "78.0" width = "121.0" x = "575.0" y = "95.0" ></ omgdc:Bounds > </ bpmndi:BPMNShape > < bpmndi:BPMNShape bpmnElement = "juniorApproval" id = "BPMNShape_juniorApproval" > < omgdc:Bounds height = "81.0" width = "115.0" x = "170.0" y = "95.0" ></ omgdc:Bounds > </ bpmndi:BPMNShape > < bpmndi:BPMNShape bpmnElement = "exclusivegateway1" id = "BPMNShape_exclusivegateway1" > < omgdc:Bounds height = "40.0" width = "40.0" x = "405.0" y = "113.0" ></ omgdc:Bounds > </ bpmndi:BPMNShape > < bpmndi:BPMNShape bpmnElement = "exclusivegateway2" id = "BPMNShape_exclusivegateway2" > < omgdc:Bounds height = "40.0" width = "40.0" x = "765.0" y = "115.0" ></ omgdc:Bounds > </ bpmndi:BPMNShape > < bpmndi:BPMNShape bpmnElement = "approvalSuccessEnd" id = "BPMNShape_approvalSuccessEnd" > < omgdc:Bounds height = "35.0" width = "35.0" x = "1140.0" y = "117.0" ></ omgdc:Bounds > </ bpmndi:BPMNShape > < bpmndi:BPMNShape bpmnElement = "sendSeniorRejectEmail" id = "BPMNShape_sendSeniorRejectEmail" > < omgdc:Bounds height = "71.0" width = "192.0" x = "690.0" y = "230.0" ></ omgdc:Bounds > </ bpmndi:BPMNShape > < bpmndi:BPMNShape bpmnElement = "seniorRejectEnd" id = "BPMNShape_seniorRejectEnd" > < omgdc:Bounds height = "35.0" width = "35.0" x = "768.0" y = "385.0" ></ omgdc:Bounds > </ bpmndi:BPMNShape > < bpmndi:BPMNShape bpmnElement = "sendApprovalSuccessEmail" id = "BPMNShape_sendApprovalSuccessEmail" > < omgdc:Bounds height = "75.0" width = "141.0" x = "920.0" y = "96.0" ></ omgdc:Bounds > </ bpmndi:BPMNShape > < bpmndi:BPMNEdge bpmnElement = "flow5" id = "BPMNEdge_flow5" > < omgdi:waypoint x = "425.0" y = "301.0" ></ omgdi:waypoint > < omgdi:waypoint x = "425.0" y = "385.0" ></ omgdi:waypoint > </ bpmndi:BPMNEdge > < bpmndi:BPMNEdge bpmnElement = "juniorSuccessFlow" id = "BPMNEdge_juniorSuccessFlow" > < omgdi:waypoint x = "445.0" y = "133.0" ></ omgdi:waypoint > < omgdi:waypoint x = "575.0" y = "134.0" ></ omgdi:waypoint > < bpmndi:BPMNLabel > < omgdc:Bounds height = "16.0" width = "32.0" x = "445.0" y = "133.0" ></ omgdc:Bounds > </ bpmndi:BPMNLabel > </ bpmndi:BPMNEdge > < bpmndi:BPMNEdge bpmnElement = "juniorRejectFlow" id = "BPMNEdge_juniorRejectFlow" > < omgdi:waypoint x = "425.0" y = "153.0" ></ omgdi:waypoint > < omgdi:waypoint x = "425.0" y = "230.0" ></ omgdi:waypoint > < bpmndi:BPMNLabel > < omgdc:Bounds height = "16.0" width = "32.0" x = "425.0" y = "153.0" ></ omgdc:Bounds > </ bpmndi:BPMNLabel > </ bpmndi:BPMNEdge > < bpmndi:BPMNEdge bpmnElement = "flow7" id = "BPMNEdge_flow7" > < omgdi:waypoint x = "696.0" y = "134.0" ></ omgdi:waypoint > < omgdi:waypoint x = "765.0" y = "135.0" ></ omgdi:waypoint > </ bpmndi:BPMNEdge > < bpmndi:BPMNEdge bpmnElement = "seniorSuccessFlow" id = "BPMNEdge_seniorSuccessFlow" > < omgdi:waypoint x = "805.0" y = "135.0" ></ omgdi:waypoint > < omgdi:waypoint x = "920.0" y = "133.0" ></ omgdi:waypoint > < bpmndi:BPMNLabel > < omgdc:Bounds height = "16.0" width = "32.0" x = "805.0" y = "135.0" ></ omgdc:Bounds > </ bpmndi:BPMNLabel > </ bpmndi:BPMNEdge > < bpmndi:BPMNEdge bpmnElement = "seniorRejectFlow" id = "BPMNEdge_seniorRejectFlow" > < omgdi:waypoint x = "785.0" y = "155.0" ></ omgdi:waypoint > < omgdi:waypoint x = "786.0" y = "230.0" ></ omgdi:waypoint > < bpmndi:BPMNLabel > < omgdc:Bounds height = "16.0" width = "32.0" x = "785.0" y = "155.0" ></ omgdc:Bounds > </ bpmndi:BPMNLabel > </ bpmndi:BPMNEdge > < bpmndi:BPMNEdge bpmnElement = "flow9" id = "BPMNEdge_flow9" > < omgdi:waypoint x = "786.0" y = "301.0" ></ omgdi:waypoint > < omgdi:waypoint x = "785.0" y = "385.0" ></ omgdi:waypoint > </ bpmndi:BPMNEdge > < bpmndi:BPMNEdge bpmnElement = "flow11" id = "BPMNEdge_flow11" > < omgdi:waypoint x = "285.0" y = "135.0" ></ omgdi:waypoint > < omgdi:waypoint x = "405.0" y = "133.0" ></ omgdi:waypoint > </ bpmndi:BPMNEdge > < bpmndi:BPMNEdge bpmnElement = "flow12" id = "BPMNEdge_flow12" > < omgdi:waypoint x = "80.0" y = "135.0" ></ omgdi:waypoint > < omgdi:waypoint x = "170.0" y = "135.0" ></ omgdi:waypoint > </ bpmndi:BPMNEdge > < bpmndi:BPMNEdge bpmnElement = "flow13" id = "BPMNEdge_flow13" > < omgdi:waypoint x = "1061.0" y = "133.0" ></ omgdi:waypoint > < omgdi:waypoint x = "1140.0" y = "134.0" ></ omgdi:waypoint > </ bpmndi:BPMNEdge > </ bpmndi:BPMNPlane > </ bpmndi:BPMNDiagram > </ definitions > |
上面文件中的process标签的id值是该流程定义的唯一标识,在创建流程实例时需要传入processId标识,上面的assignee变量后面定义了一个变量${seniorAdmin},这个是由接口调用时传入的,activiti:class后面的值是一个类,表示执行到这个步骤时会触发执行某个动作,比如id为sendJuniorRectEmail的serviceTask中的class定义如下:
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@Slf4j public class SendJuniorRejectionMailDelegate implements JavaDelegate { @Override public void execute(DelegateExecution execution) { String requestUser = (String) execution.getVariable( "requestUser" ); String resourceId = (String) execution.getVariable( "resourceId" ); System.out.println( "SendJuniorRejectionMailDelegate" ); log.info( "send approval success mail for user [" + requestUser + "] with apply resource [" + resourceId + "]" ); } } |
上面的类需要实现JavaDelegate这个接口,上面的内容定义完毕后,就可以定义我们的实现方法了,先创建一个接口,定义一些方法:
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public interface IProcess { /** * 创建一个流程实例,创建实例时会登记一些信息,这些信息可以通过调用 * queryProcessVariables方法获取到,调用时需要传递processInstanceId * @param paramObj * @return */ ProcessInstanceEntity startProcess(ParamObj paramObj); /** * 获取指定工作人的代办任务 * @param assignee * @return */ List<TaskInstanceEntity> taskInstance(String assignee); /** * 处理工作 * @param paramObj */ void handleTask(ParamObj paramObj); /** * 获取某个流程实体的状态,各个审批环节所处的状态信息 * @param processInstanceId * @return */ List<ProcessStatusEntity> queryProcessStatus(String processInstanceId); /** * 查看创建流程实例时登记的变量信息 * @param processInstanceId * @return */ Map<String,Object> queryProcessVariables(String processInstanceId); /** * 获取某人的历史审批数据 * @param assignee * @return */ List<HistanceInstanceEntity> queryHistoryProcess(String assignee); /** * 生成流程的图谱 * @param httpServletResponse * @param processInstanceId */ void genProcessDiagram(HttpServletResponse httpServletResponse, String processInstanceId) throws Exception; /** * 查询是否存在历史数据的流程实例 * @param processInstanceId * @return */ boolean isExistHistoricProcessInstance(String processInstanceId); /** * 查询指定的流程是否是运行中的流程 * @param processInstanceId * @return */ boolean isExistRunningProcessInstance(String processInstanceId); /** * 将指定的流程挂起 * @param processInstanceId */ void suspendProcessInstance(String processInstanceId); /** * 终止项目流程 * @param paramObj */ void terminateProcessInstance(ParamObj paramObj); /** * 将指定的流程激活 * @param processInstanceId */ void activateProcessInstance(String processInstanceId); /** * 删除流程实例 * @param paramObj */ void deleteProcessInstance(ParamObj paramObj); /** * 将任务返回到某一步骤 * @param taskId * @param targetTaskKey 返回到的目标任务ID */ void rollbackTask(String taskId, String targetTaskKey); boolean isProcessFinished(String processInstanceId); } |
定义好接口后,再定义一个实现类:
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@Service public class IProcessImpl implements IProcess { @Autowired private RepositoryService repositoryService; private RuntimeService runtimeService; private TaskService taskService; private HistoryService historyService; private ProcessEngine processEngine; ManagementService managementService; @Override public ProcessInstanceEntity startProcess(ParamObj paramObj) { Map<String, Object> variables = new HashMap<>(); // 请求的资源ID variables.put( "resourceId" , paramObj.getResourceId()); // 请求发起用户 variables.put( "requestUser" , paramObj.getRequestUser()); // 初级审批用户 variables.put( "juniorAdmin" , paramObj.getJuniorAdmin()); // 高级审批用户 variables.put( "seniorAdmin" , paramObj.getSeniorAdmin()); ProcessInstance processInstance=runtimeService. startProcessInstanceByKey(ConstantValues.FLOWABLE_PROCESS_TEST, variables); ProcessInstanceEntity entity= new ProcessInstanceEntity(); entity.setProcessDeploymentId(processInstance.getDeploymentId()); entity.setProcessInstanceId(processInstance.getProcessInstanceId()); entity.setActivityId(processInstance.getActivityId()); return entity; } public List<TaskInstanceEntity> taskInstance(String assignee) { List<TaskInstanceEntity> entities= new ArrayList<>(); List<Task> tasks= taskService.createTaskQuery().taskAssignee(assignee).orderByTaskCreateTime().desc().list(); if (!CollectionUtils.isEmpty(tasks)){ tasks.stream().forEach(task -> { TaskInstanceEntity entity= new TaskInstanceEntity(); String id=task.getId(); entity.setCreateTime(task.getCreateTime()); entity.setTaskName(task.getName()); entity.setProcessInstanceId(task.getProcessInstanceId()); entity.setTaskId(id); Map<String, Object> processVariables = taskService.getVariables(id); entity.setRequestUser(processVariables.get( "requestUser" ).toString()); entity.setResourceId(processVariables.get( "resourceId" ).toString()); entities.add(entity); }); } return entities; public void handleTask(ParamObj paramObj) { Map<String, Object> taskVariables = new HashMap<>(); String approved=paramObj.isApproved()? "Y" : "N" ; taskVariables.put( "approved" , approved); //审核结果和审核意见都封装为JSON然后放在评论里,后续需要进行逆操作。 ObjectMapper objectMapper = new ObjectMapper(); Map<String, String> map= new HashMap<>(); map.put( "approved" , approved); map.put( "comment" , paramObj.getComment()); try { String json = objectMapper.writeValueAsString(map); taskService.addComment(paramObj.getTaskId(), null , json); taskService.complete(paramObj.getTaskId(), taskVariables); } catch (Exception e) { throw new RuntimeException(e); public List<ProcessStatusEntity> queryProcessStatus(String processInstanceId) { List<ProcessStatusEntity> result = new ArrayList<>(); List<HistoricTaskInstance> historicTaskInstances = historyService.createHistoricTaskInstanceQuery() .processInstanceId(processInstanceId).list(); if (CollectionUtils.isEmpty(historicTaskInstances)) { throw new RuntimeException( "Process instance [" + processInstanceId + "] not exist" ); for (HistoricTaskInstance hti : historicTaskInstances) { String taskId = hti.getId(); String taskName = hti.getName(); String assignee = hti.getAssignee(); Date createTime = hti.getCreateTime(); String comment = null ; String approved= null ; List<Comment> comments = taskService.getTaskComments(taskId); if (!CollectionUtils.isEmpty(comments)) { comment = comments.get( 0 ).getFullMessage(); if ( null !=comment) { //这里进行评论的JSON数据的逆操作提取数据 ObjectMapper mapper = new ObjectMapper(); try { Map<String,Object> data = mapper.readValue(comment, Map. class ); approved=data.get( "approved" ).toString(); comment=data.get( "comment" ).toString(); } catch (Exception e) { System.out.println(e.toString()); } } } ProcessStatusEntity pd= new ProcessStatusEntity(); pd.setTaskName(taskName); pd.setAssignee(assignee); pd.setCreateTime(createTime); pd.setApproved(approved); pd.setComment(comment); pd.setTaskId(hti.getId()); pd.setProcessInstanceId(hti.getProcessInstanceId()); result.add(pd); return result; public Map<String, Object> queryProcessVariables(String processInstanceId) { List<HistoricVariableInstance> historicVariableInstances = historyService.createHistoricVariableInstanceQuery() if (historicVariableInstances == null ) { Map<String,Object> ret= new HashMap<>(); for (HistoricVariableInstance var: historicVariableInstances) { ret.put(var.getVariableName(), var.getValue()); return ret; public List<HistanceInstanceEntity> queryHistoryProcess(String assignee) { List<HistanceInstanceEntity> result= new ArrayList<>(); List<HistoricActivityInstance> activities = historyService.createHistoricActivityInstanceQuery() .taskAssignee(assignee).finished().orderByHistoricActivityInstanceEndTime().desc().list(); for (HistoricActivityInstance h : activities) { HistanceInstanceEntity d= new HistanceInstanceEntity(); d.setProcessInstanceId(h.getProcessInstanceId()); d.setTaskId(h.getTaskId()); d.setStartTime(h.getStartTime()); d.setEndTime(h.getEndTime()); result.add(d); public void genProcessDiagram(HttpServletResponse httpServletResponse, String processInstanceId) throws Exception{ ProcessInstance pi = runtimeService.createProcessInstanceQuery(). processInstanceId(processInstanceId).singleResult(); //流程走完的不显示图 if (pi == null ) { // System.out.println("不存在该流程或则流程已经走完"); throw new RuntimeException( "不存在该流程或则流程已经走完" ); // return; Task task = taskService.createTaskQuery().processInstanceId(pi.getId()).singleResult(); //使用流程实例ID,查询正在执行的执行对象表,返回流程实例对象 String InstanceId = task.getProcessInstanceId(); List<Execution> executions = runtimeService .createExecutionQuery() .processInstanceId(InstanceId) .list(); //得到正在执行的Activity的Id List<String> activityIds = new ArrayList<>(); List<String> flows = new ArrayList<>(); for (Execution exe : executions) { List<String> ids = runtimeService.getActiveActivityIds(exe.getId()); activityIds.addAll(ids); //获取流程图 BpmnModel bpmnModel = repositoryService.getBpmnModel(pi.getProcessDefinitionId()); ProcessEngineConfiguration engineConf = processEngine.getProcessEngineConfiguration(); ProcessDiagramGenerator diagramGenerator = engineConf.getProcessDiagramGenerator(); InputStream in = diagramGenerator.generateDiagram(bpmnModel, "png" , activityIds, flows, engineConf.getActivityFontName(), engineConf.getLabelFontName(), engineConf.getAnnotationFontName(), engineConf.getClassLoader(), 1.0 , true ); OutputStream out = null ; byte [] buf = new byte [ 1024 ]; int length = 0 ; out = httpServletResponse.getOutputStream(); while ((length = in.read(buf)) != - 1 ) { out.write(buf, 0 , length); } finally { if (in != null ) { in.close(); if (out != null ) { out.close(); public boolean isExistHistoricProcessInstance(String processInstanceId) { HistoricProcessInstance historicProcessInstance = historyService.createHistoricProcessInstanceQuery(). processInstanceId(processInstanceId).singleResult(); if (historicProcessInstance == null ) { return false ; return true ; public boolean isExistRunningProcessInstance(String processInstanceId) { ProcessInstance processInstance = runtimeService.createProcessInstanceQuery(). if (processInstance == null ) { public void suspendProcessInstance(String processInstanceId) { runtimeService.suspendProcessInstanceById(processInstanceId); public void terminateProcessInstance(ParamObj paramObj) { runtimeService.deleteProcessInstance(paramObj.getProcessInstanceId(),paramObj.getDeleteReason()); public void activateProcessInstance(String processInstanceId) { runtimeService.activateProcessInstanceById(processInstanceId); public void deleteProcessInstance(ParamObj paramObj) { //查询是否操作 long count = runtimeService.createExecutionQuery().processInstanceId(paramObj.getProcessInstanceId()).count(); if (count> 0 ){ DeleteFlowableProcessInstanceCmd cmd= new DeleteFlowableProcessInstanceCmd(paramObj.getProcessInstanceId(), paramObj.getDeleteReason(), true ); managementService.executeCommand(cmd); //runtimeService.deleteProcessInstance(processInstanceId,deleteReason); } else { //删除历史数据的流程实体 historyService.deleteHistoricProcessInstance(paramObj.getProcessInstanceId()); public void rollbackTask(String taskId, String targetTaskKey) { Task currentTask = taskService.createTaskQuery().taskId(taskId).singleResult(); if (currentTask == null ) { return ; List<String> key = new ArrayList<>(); key.add(currentTask.getTaskDefinitionKey()); runtimeService.createChangeActivityStateBuilder() .processInstanceId(currentTask.getProcessInstanceId()) .moveActivityIdsToSingleActivityId(key, targetTaskKey) .changeState(); public boolean isProcessFinished(String processInstanceId) { return historyService.createHistoricProcessInstanceQuery().finished() .processInstanceId(processInstanceId).count()> 0 ; } |
实现类中注入的变量都是flowable框架中的变量,实现类中的方法的作用在接口中都有向相关注释,其中deleteProcessInstance方法中会引用一个类来删除流程实例,DeleteFlowableProcessInstanceCmd类的定义如下:
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@Data public class DeleteProcessInstanceCmd implements Command<Void>, Serializable { String processInstanceId; String deleteReason; //是否删除历史 boolean cascade= true ; public DeleteProcessInstanceCmd(){ } public DeleteProcessInstanceCmd(String processInstanceId,String deleteReason){ this .deleteReason=deleteReason; this .processInstanceId=processInstanceId; } public DeleteProcessInstanceCmd(String processInstanceId, String deleteReason, boolean cascade){ this .deleteReason=deleteReason; this .processInstanceId=processInstanceId; this .cascade=cascade; } @Override public Void execute(CommandContext commandContext) { ExecutionEntity entity= CommandContextUtil.getExecutionEntityManager(commandContext) .findById(processInstanceId); if (entity!= null ){ if (entity.isDeleted()){ return null ; } if (Flowable5Util.isFlowable5ProcessDefinitionId(commandContext,entity.getProcessDefinitionId())){ Flowable5CompatibilityHandler handler=Flowable5Util.getFlowable5CompatibilityHandler(); handler.deleteProcessInstance(processInstanceId,deleteReason); } else { CommandContextUtil.getExecutionEntityManager(commandContext).deleteProcessInstance(entity.getProcessInstanceId(),deleteReason,cascade); } } return null ; } } |
上述功能了类定义完毕后,就可以创建我们的controller类了,我们的controller类的定义如下:
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@RestController @RequestMapping ( "/flowableTest" ) public class FlowableController { @Autowired IProcess process; @PostMapping ( "/startProcess" ) public ProcessInstanceEntity startProcess( @RequestBody ParamObj paramObj){ return process.startProcess(paramObj); } @GetMapping ( "/getTaskInstance/{assignee}" ) public List<TaskInstanceEntity> taskInstance( @PathVariable ( "assignee" ) String assignee){ return process.taskInstance(assignee); } @PutMapping ( "/handleTask" ) public String handleTask( @RequestBody ParamObj paramObj){ process.handleTask(paramObj); return "success" ; } @GetMapping ( "/queryProcessStatus" ) public List<ProcessStatusEntity> queryProcessStatus(String processInstanceId){ return process.queryProcessStatus(processInstanceId); } @GetMapping ( "/queryProcessVariables" ) public Map<String, Object> queryProcessVariables(String processInstanceId){ return process.queryProcessVariables(processInstanceId); } @GetMapping ( "/queryHistoryProcess" ) public List<HistanceInstanceEntity> queryHistoryProcess(String assignee){ return process.queryHistoryProcess(assignee); } @GetMapping ( "/genProcessDiagram" ) public void genProcessDiagram(HttpServletResponse httpServletResponse, String processInstanceId) throws Exception { process.genProcessDiagram(httpServletResponse,processInstanceId); } @GetMapping ( "/isExistHistoricProcessInstance" ) public boolean isExistHistoricProcessInstance(String processInstanceId){ return process.isExistHistoricProcessInstance(processInstanceId); } @GetMapping ( "/isProcessFinished" ) public boolean isProcessFinished(String processInstanceId){ return process.isProcessFinished(processInstanceId); } @GetMapping ( "/isExistRunningProcessInstance" ) public boolean isExistRunningProcessInstance(String processInstanceId){ return process.isExistRunningProcessInstance(processInstanceId); } @PutMapping ( "/suspendProcessInstance" ) public String suspendProcessInstance(String processInstanceId){ process.suspendProcessInstance(processInstanceId); return "流程 " +processInstanceId+ " 已经挂起" ; } @PutMapping ( "/terminateProcessInstance" ) public String terminateProcessInstance(ParamObj paramObj){ process.terminateProcessInstance(paramObj); return "流程 " +paramObj.getProcessInstanceId()+ " 已经终止" ; } @PutMapping ( "/activateProcessInstance" ) public String activateProcessInstance(String processInstanceId) { process.activateProcessInstance(processInstanceId); return "流程 " +processInstanceId+ " 已经激活" ; } @PutMapping ( "/deleteProcessInstance" ) public String deleteProcessInstance(ParamObj paramObj){ process.deleteProcessInstance(paramObj); return "流程 " +paramObj.getProcessInstanceId()+ " 已经删除" ; } @PutMapping ( "/rollback" ) public String rollbackTask(String taskId, String targetTaskKey){ process.rollbackTask(taskId,targetTaskKey); return "流程回退成功" ; } } |
试运行工程,运行工程后,系统会自动生成一些表单,是一些act_和flw_开头的表单,如下,利用postman创建一个流程实例:
查看流程示例图:
调用查看任务接口,可以查看某个人有哪些任务需要处理:
调用任务处理接口:
查看处理后的结果:
以上是flowable流程框架的简单应用,更为详细的使用等待后续的挖掘......
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原文链接:https://www.cnblogs.com/codeMedita/p/15972476.html