需求：项目需要引入相关的工作流框架，为了熟悉相关的工作流框架，选择了Activiti7.0和SpringBoot集成进行相关学习

1、引入相关maven依赖包

    <properties><activiti.version>7.1.0.M5</activiti.version></properties><!-- 引入activiti7依赖 --><dependency><groupId>org.activiti</groupId><artifactId>activiti-spring-boot-starter</artifactId><version>${activiti.version}</version></dependency><dependency><groupId>org.activiti</groupId><artifactId>activiti-image-generator</artifactId><version>${activiti.version}</version></dependency>

2、Activiti的相关yaml配置

spring:#Activiti7配置activiti:# 自动部署验证设置:true-开启（默认）、false-关闭check-process-definitions: false#自动创建表#database-schema-update: drop-createdatabase-schema-update: false#使用历史表history-level: fulldb-history-used: true# 关闭自动部署deployment-mode: never-fail#自动部署文件路径前后缀#process-definition-location-prefix: classpath:/bpm/#process-definition-location-suffixes: **.bpmn,**.bpmn20.xml

3、引入测试案例的bpmn文件（askForLeaveBpm.bpmn）

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL" 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:tns="http://www.activiti.org/test" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" expressionLanguage="http://www.w3.org/1999/XPath" id="m1620381003109" name="" targetNamespace="http://www.activiti.org/test" typeLanguage="http://www.w3.org/2001/XMLSchema"><process id="myProcess_1" isClosed="false" isExecutable="true" processType="None"><startEvent id="_2" name="开始"/><userTask activiti:assignee="${pm}" activiti:exclusive="true" id="_3" name="项目经理审批"/><userTask activiti:assignee="${bm}" activiti:exclusive="true" id="_4" name="部门经理审批"/><endEvent id="_5" name="结束"/><sequenceFlow id="_8" sourceRef="_4" targetRef="_5"/><sequenceFlow id="_6" sourceRef="_2" targetRef="_3"/><exclusiveGateway gatewayDirection="Unspecified" id="_7" name="排他网关"/><sequenceFlow id="_9" sourceRef="_3" targetRef="_7"/><sequenceFlow id="_14" name="&gt;3天" sourceRef="_7" targetRef="_4"><conditionExpression xsi:type="tFormalExpression"><![CDATA[${count > 3}]]></conditionExpression></sequenceFlow><sequenceFlow id="_15" name="&lt;=3天" sourceRef="_7" targetRef="_5"><conditionExpression xsi:type="tFormalExpression"><![CDATA[${count <= 3}]]></conditionExpression></sequenceFlow></process><bpmndi:BPMNDiagram documentation="background=#3C3F41;count=1;horizontalcount=1;orientation=0;width=842.4;height=1195.2;imageableWidth=832.4;imageableHeight=1185.2;imageableX=5.0;imageableY=5.0" id="Diagram-_1" name="New Diagram"><bpmndi:BPMNPlane bpmnElement="myProcess_1"><bpmndi:BPMNShape bpmnElement="_2" id="Shape-_2"><omgdc:Bounds height="32.0" width="32.0" x="230.0" y="45.0"/><bpmndi:BPMNLabel><omgdc:Bounds height="32.0" width="32.0" x="0.0" y="0.0"/></bpmndi:BPMNLabel></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="_3" id="Shape-_3"><omgdc:Bounds height="55.0" width="85.0" x="200.0" y="125.0"/><bpmndi:BPMNLabel><omgdc:Bounds height="55.0" width="85.0" x="0.0" y="0.0"/></bpmndi:BPMNLabel></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="_4" id="Shape-_4"><omgdc:Bounds height="55.0" width="85.0" x="200.0" y="340.0"/><bpmndi:BPMNLabel><omgdc:Bounds height="55.0" width="85.0" x="0.0" y="0.0"/></bpmndi:BPMNLabel></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="_5" id="Shape-_5"><omgdc:Bounds height="32.0" width="32.0" x="230.0" y="470.0"/><bpmndi:BPMNLabel><omgdc:Bounds height="32.0" width="32.0" x="0.0" y="0.0"/></bpmndi:BPMNLabel></bpmndi:BPMNShape><bpmndi:BPMNShape bpmnElement="_7" id="Shape-_7" isMarkerVisible="false"><omgdc:Bounds height="32.0" width="32.0" x="230.0" y="230.0"/><bpmndi:BPMNLabel><omgdc:Bounds height="32.0" width="32.0" x="0.0" y="0.0"/></bpmndi:BPMNLabel></bpmndi:BPMNShape><bpmndi:BPMNEdge bpmnElement="_15" id="BPMNEdge__15" sourceElement="_7" targetElement="_5"><omgdi:waypoint x="262.0" y="246.0"/><omgdi:waypoint x="370.0" y="375.0"/><omgdi:waypoint x="262.0" y="486.0"/><bpmndi:BPMNLabel><omgdc:Bounds height="0.0" width="0.0" x="0.0" y="0.0"/></bpmndi:BPMNLabel></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="_14" id="BPMNEdge__14" sourceElement="_7" targetElement="_4"><omgdi:waypoint x="246.0" y="262.0"/><omgdi:waypoint x="246.0" y="340.0"/><bpmndi:BPMNLabel><omgdc:Bounds height="0.0" width="0.0" x="0.0" y="0.0"/></bpmndi:BPMNLabel></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="_6" id="BPMNEdge__6" sourceElement="_2" targetElement="_3"><omgdi:waypoint x="246.0" y="77.0"/><omgdi:waypoint x="246.0" y="125.0"/><bpmndi:BPMNLabel><omgdc:Bounds height="0.0" width="0.0" x="0.0" y="0.0"/></bpmndi:BPMNLabel></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="_8" id="BPMNEdge__8" sourceElement="_4" targetElement="_5"><omgdi:waypoint x="246.0" y="395.0"/><omgdi:waypoint x="246.0" y="470.0"/><bpmndi:BPMNLabel><omgdc:Bounds height="0.0" width="0.0" x="0.0" y="0.0"/></bpmndi:BPMNLabel></bpmndi:BPMNEdge><bpmndi:BPMNEdge bpmnElement="_9" id="BPMNEdge__9" sourceElement="_3" targetElement="_7"><omgdi:waypoint x="246.0" y="180.0"/><omgdi:waypoint x="246.0" y="230.0"/><bpmndi:BPMNLabel><omgdc:Bounds height="0.0" width="0.0" x="0.0" y="0.0"/></bpmndi:BPMNLabel></bpmndi:BPMNEdge></bpmndi:BPMNPlane></bpmndi:BPMNDiagram>
</definitions>

设计图示如下：

4、验证集成工作流是否正常

 编写流程部署的测试类：

    import org.activiti.engine.RepositoryService;@Autowiredprivate RepositoryService repositoryService;/*** 流程部署*/@Testpublic void test() {repositoryService.createDeployment().addClasspathResource("bpm/askForLeaveBpm.bpmn").name("请假流程").key("ASK_FOR_LEAVE_ACT").deploy();System.out.println("流程部署成功！");}

部署成功后，验证已部署的流程：

     @Autowiredprivate RepositoryService repositoryService;@Testpublic void testQueryInfo() {// 查询已部署的流程 -- 请假流程DeploymentQuery query = repositoryService.createDeploymentQuery();List<Deployment> list = query.deploymentKey("ASK_FOR_LEAVE_ACT").orderByDeploymenTime().desc().list();Deployment deployment = list.get(0);System.out.println(JSONUtil.toJsonStr(deployment));System.out.println("查询成功");}

验证结果：

 补充一下，部署bpmn的过程中有出现报错的问题，最后找到报错的原因，是官方提供的内置sql，自动建表完成后，少提供了2个字段，导致部署流程失败，Activiti7官方确实的2个表字段的补充SQL如下：

-- activeti7项目遗留的缺陷alter table ACT_RE_DEPLOYMENT add column PROJECT_RELEASE_VERSION_ varchar(255);alter table ACT_RE_DEPLOYMENT add column VERSION_ varchar(255);

请假流程的实体类封装：

package me.zhengjie.modules.activiti.domain.po;public class ActivitiPO {/****/private String businessKey;/*** 用户名*/private String userName;/*** 时间*/private String time;/*** 请假天数*/private String count;/*** 项目经理*/private String pm;/*** 部门经理*/private String bm;/*** 任务id*/private String taskId;/*** 审批结果：true 同意， false 拒绝*/private Boolean auditFlag;/*** 审批信息*/private String message;public String getBusinessKey() {return businessKey;}public void setBusinessKey(String businessKey) {this.businessKey = businessKey;}public String getUserName() {return userName;}public void setUserName(String userName) {this.userName = userName;}public String getTime() {return time;}public void setTime(String time) {this.time = time;}public String getCount() {return count;}public void setCount(String count) {this.count = count;}public String getPm() {return pm;}public void setPm(String pm) {this.pm = pm;}public String getBm() {return bm;}public void setBm(String bm) {this.bm = bm;}public String getTaskId() {return taskId;}public void setTaskId(String taskId) {this.taskId = taskId;}public Boolean getAuditFlag() {return auditFlag;}public void setAuditFlag(Boolean auditFlag) {this.auditFlag = auditFlag;}public String getMessage() {return message;}public void setMessage(String message) {this.message = message;}
}

测试发起请假流程：

@Autowiredprivate ILeaveFlowService leaveFlowService;/*** 测试发起请假流程*/@Testpublic void testLaunchWorkFlow() {ActivitiPO activitiPo = new ActivitiPO();activitiPo.setUserName("test");activitiPo.setCount("请假5天，回去结婚");activitiPo.setPm("诸葛亮");activitiPo.setBm("吴用");try {leaveFlowService.launchLeaveFlow(activitiPo);System.out.println("发起请假流程成功");} catch (Exception ex) {ex.printStackTrace();System.out.println("发起请假流程失败");}}

具体实现逻辑：

    @Autowiredprivate RepositoryService repositoryService;@Autowiredprivate RuntimeService runtimeService;@Overridepublic void launchLeaveFlow(ActivitiPO activitiPo) {// 查询已部署的软件部请假流程DeploymentQuery query = repositoryService.createDeploymentQuery();List<Deployment> list = query.deploymentKey(WorkFlowDeployKeyEnum.SOFT_DEPARTMENT_LEAVE_FLOW_KEY.key()).orderByDeploymenTime().desc().list();Deployment deployment = list.get(0);ProcessDefinitionQuery processDefinitionQuery = repositoryService.createProcessDefinitionQuery();List<ProcessDefinition> processList = processDefinitionQuery.deploymentId(deployment.getId()).list();// 设置流程执行人Map<String, Object> variables = new HashMap<>();variables.put("pm", activitiPo.getPm());variables.put("bm", activitiPo.getBm());variables.put("count", activitiPo.getCount());// 设置流程启动者Authentication.setAuthenticatedUserId(activitiPo.getUserName());// 通过流程部署id启动runtimeService.startProcessInstanceById(processList.get(0).getId(), activitiPo.getBusinessKey(), variables);}

枚举设计类：

package me.zhengjie.enums;public enum  WorkFlowDeployKeyEnum {SOFT_DEPARTMENT_LEAVE_FLOW_KEY("ASK_FOR_LEAVE_ACT", "请假流程"),;private final String key;private final String description;WorkFlowDeployKeyEnum(String key, String description) {this.key = key;this.description = description;}public String key() {return key;}public String description() {return description;}
}

测试结果：

 

 

5、总结

至此SpringBoot集成Activiti7.0完毕，部署bpmn流程，发起请假流程均能正常使用，不过7.0的相关学习资料还不是很多，遇到好多问题都需要花费一定的时间精力去处理。后续就是对Activiti7.0的相关API的学习，以及和案例结合的一些简单的实践应用。