前言
最近一直研究springboot,根据工作需求,工作流需要作为一个单独的微服务工程来提供给其他服务调用,现在简单的写下工作流(使用的activiti)微服务的搭建与简单使用
jdk:1.8
数据库:mysql 5.7
IDE:eclipse
springboot:1.5.8
activiti:6.0.0
1.新建空白的maven微服务架构
新建maven项目的流程不在阐述,这里添加上activiti、myslq连接的依赖,只贴主要代码
pox.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://plete(taskId2, map);//驳回申请 System.out.println("method startActivityDemo end...."); return false; }}
5.bpmn
在resources目录下新建文件夹:processes,并在processes创建一个新的bpmn文件,如图
文件内容:
<?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" xmlns:dc="http://www.omg.org/spec/DD/20100524/DC" xmlns:di="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/testm1510735932336" id="m1510735932336" name=""> <process id="leave" isExecutable="true" isClosed="false" processType="None"> <startEvent id="_2" name="StartEvent"></startEvent> <endEvent id="_3" name="EndEvent"></endEvent> <userTask id="approve" name="经理审批" activiti:assignee="${approve}"></userTask> <exclusiveGateway id="_5" name="ExclusiveGateway"></exclusiveGateway> <sequenceFlow id="_6" sourceRef="approve" targetRef="_5"></sequenceFlow> <sequenceFlow id="_7" name="通过" sourceRef="_5" targetRef="_3"> <conditionExpression xsi:type="tFormalExpression"><![CDATA[${pass}]]></conditionExpression> </sequenceFlow> <userTask id="application" name="提交申请" activiti:assignee="${apply}"></userTask> <sequenceFlow id="_9" sourceRef="_2" targetRef="application"></sequenceFlow> <sequenceFlow id="_10" sourceRef="application" targetRef="approve"></sequenceFlow> <userTask id="modify" name="修改申请" activiti:assignee="${apply}"></userTask> <sequenceFlow id="_12" name="不通过" sourceRef="_5" targetRef="modify"> <conditionExpression xsi:type="tFormalExpression"><![CDATA[${!pass}]]></conditionExpression> </sequenceFlow> <sequenceFlow id="_13" sourceRef="modify" targetRef="approve"></sequenceFlow> </process> <bpmndi:BPMNDiagram id="BPMNDiagram_leave"> <bpmndi:BPMNPlane bpmnElement="leave" id="BPMNPlane_leave"> <bpmndi:BPMNShape bpmnElement="_2" id="BPMNShape__2"> <omgdc:Bounds height="35.0" width="35.0" x="15.0" y="60.0"></omgdc:Bounds> </bpmndi:BPMNShape> <bpmndi:BPMNShape bpmnElement="_3" id="BPMNShape__3"> <omgdc:Bounds height="35.0" width="35.0" x="630.0" y="63.0"></omgdc:Bounds> </bpmndi:BPMNShape> <bpmndi:BPMNShape bpmnElement="approve" id="BPMNShape_approve"> <omgdc:Bounds height="55.0" width="85.0" x="315.0" y="50.0"></omgdc:Bounds> </bpmndi:BPMNShape> <bpmndi:BPMNShape bpmnElement="_5" id="BPMNShape__5"> <omgdc:Bounds height="40.0" width="40.0" x="505.0" y="60.0"></omgdc:Bounds> </bpmndi:BPMNShape> <bpmndi:BPMNShape bpmnElement="application" id="BPMNShape_application"> <omgdc:Bounds height="55.0" width="85.0" x="135.0" y="50.0"></omgdc:Bounds> </bpmndi:BPMNShape> <bpmndi:BPMNShape bpmnElement="modify" id="BPMNShape_modify"> <omgdc:Bounds height="55.0" width="85.0" x="315.0" y="150.0"></omgdc:Bounds> </bpmndi:BPMNShape> <bpmndi:BPMNEdge bpmnElement="_6" id="BPMNEdge__6"> <omgdi:waypoint x="400.0" y="77.0"></omgdi:waypoint> <omgdi:waypoint x="505.0" y="80.0"></omgdi:waypoint> </bpmndi:BPMNEdge> <bpmndi:BPMNEdge bpmnElement="_7" id="BPMNEdge__7"> <omgdi:waypoint x="545.0" y="80.0"></omgdi:waypoint> <omgdi:waypoint x="630.0" y="80.0"></omgdi:waypoint> </bpmndi:BPMNEdge> <bpmndi:BPMNEdge bpmnElement="_9" id="BPMNEdge__9"> <omgdi:waypoint x="50.0" y="77.0"></omgdi:waypoint> <omgdi:waypoint x="135.0" y="77.0"></omgdi:waypoint> </bpmndi:BPMNEdge> <bpmndi:BPMNEdge bpmnElement="_10" id="BPMNEdge__10"> <omgdi:waypoint x="220.0" y="77.0"></omgdi:waypoint> <omgdi:waypoint x="315.0" y="77.0"></omgdi:waypoint> </bpmndi:BPMNEdge> <bpmndi:BPMNEdge bpmnElement="_12" id="BPMNEdge__12"> <omgdi:waypoint x="525.0" y="100.0"></omgdi:waypoint> <omgdi:waypoint x="525.0" y="177.0"></omgdi:waypoint> <omgdi:waypoint x="400.0" y="177.0"></omgdi:waypoint> </bpmndi:BPMNEdge> <bpmndi:BPMNEdge bpmnElement="_13" id="BPMNEdge__13"> <omgdi:waypoint x="357.0" y="150.0"></omgdi:waypoint> <omgdi:waypoint x="357.0" y="105.0"></omgdi:waypoint> </bpmndi:BPMNEdge> </bpmndi:BPMNPlane> </bpmndi:BPMNDiagram></definitions>
需要认知的问题:.项目启动的时候,activiti会自动在mysql中创建activiti相关表,不用像oracle那样需要手动去创建
6.验证
启动项目前,连接数据库,查看需要连接数据库中没有表,启动项目完成后,刷新数据库,activiti已经创建相关表,打开act_re_procdef表,流程数据已经存在,即流程已经部署成功。
用浏览器访问地址:http://127.0.0.1:8081/activity/activityService/startActivityDemo
打印了预计的日志,没有报错信息,查看数据库中的act_ru_task表,发现刚才执行形成的数据,项目成功。
PS:只是简单的微服务,没有去写注册服务、网关配置、熔断机制等等,仅用于activiti与springboot的结合
=========================后续==========================
1.在项目单独作为一个引擎,本身不部署流程的时候,如果resources目录没有“processes”目录,启动项目报错--找不到processes目录。需要在配置文件中添加一下内容:
spring: activiti: ####校验流程文件,默认校验resources下的processes文件夹里的流程文件 check-process-definitions: false
即启动项目,不去校验processes。
总结
以上就是这篇文章的全部内容了,希望本文的内容对大家的学习或者工作具有一定的参考学习价值,如果有疑问大家可以留言交流,谢谢大家对的支持。