springboot2集成activiti7纯代码

此bpmn文件为代码创建流程

maven坐标

    org.activiti
    activiti-spring-boot-starter
    7.1.0.M6




    org.springframework.boot
    spring-boot-starter-security

配置文件

#默认为true，表不存在生成表
spring.activiti.database-schema-update=true
#历史记录
spring.activiti.db-history-used=true
#历史记录级别，这是最高
spring.activiti.history-level=full
#关闭重复生成不同版本号的数据
spring.activiti.deployment-mode=never-fail

启动类排除security登录

不排除访问会跳转到登录，用户是：user，密码如下图，启动项目时生成

@SpringBootApplication(
        exclude = {org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration.class,
                org.springframework.boot.actuate.autoconfigure.security.servlet.ManagementWebSecurityAutoConfiguration.class}
)

创建流程定义部署、开启实例、审批流程

package net.test.springbootweb.workflow;

import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.util.IdUtil;
import cn.hutool.core.util.RandomUtil;
import org.activiti.bpmn.converter.BpmnXMLConverter;
import org.activiti.bpmn.model.Process;
import org.activiti.bpmn.model.*;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.RuntimeService;
import org.activiti.engine.TaskService;
import org.activiti.engine.runtime.ProcessInstance;
import org.activiti.engine.task.Task;
import org.apache.commons.io.FileUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.io.File;
import java.io.IOException;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;

/**
 * Desc：CreateWorkFlow
 * Date：2021/12/6
 *
 * @author author
 */
@RestController
@RequestMapping("workFlow")
public class CreateWorkFlow {
    @Autowired
    private RepositoryService repositoryService;
    @Autowired
    private RuntimeService runtimeService;
    @Autowired
    private TaskService taskService;
    public static final String BASE_CHAR = "abcdefghijklmnopqrstuvwxyz";

    /**
     * 创建流程定义
     *
     * @param flowName    流程名称
     * @param auditType   审批类型：会签AND、或签OR、依次审批IN
     * @param flowNodeDef 审批节点数量
     * @return
     */
    @PostMapping("createWorkFlow")
    public String createWorkFlow(String flowName, String auditType, int flowNodeDef) {
        Process process = new Process();
        //流程定义id,此处加上随机一个小写字母,是因为uuid如果以数字开头,会报错
        String processKey = RandomUtil.randomString(BASE_CHAR, 1) + IdUtil.fastSimpleUUID();
        process.setId(processKey);
        process.setName(flowName);
        //设置开始节点
        StartEvent startEvent = new StartEvent();
        startEvent.setId("start");
        process.addFlowElement(startEvent);
        //生成流程引擎节点任务
        int taskId;
        for (taskId = 0; taskId < flowNodeDef; taskId++) {
            String taskKey = "task" + taskId;
            String assignee = "user" + taskId;
            String inputDataItem = "userList" + taskId;
            String completionCondition = "";
            if ("AND".equalsIgnoreCase(auditType)) {
                completionCondition = "${nrOfCompletedInstances/nrOfInstances == 1}";//会签
            } else if ("OR".equalsIgnoreCase(auditType)) {
                completionCondition = "${nrOfCompletedInstances == 1}";//或签
            } else if ("".equalsIgnoreCase(auditType) || null == auditType) {
                completionCondition = "${nrOfCompletedInstances/nrOfInstances >= 0.6}";//按一定比例通过
            }
            //设置任务节点
            UserTask userTask = new UserTask();
            userTask.setId(taskKey);
            String name = IdUtil.fastSimpleUUID();//可以与自己的节点ID关联起来
            userTask.setName(name);
            userTask.setAssignee("${" + assignee + "}");
            MultiInstanceLoopCharacteristics loopCharacteristics = new MultiInstanceLoopCharacteristics();
            loopCharacteristics.setSequential("IN".equalsIgnoreCase(auditType));//依次审批
            loopCharacteristics.setElementVariable(assignee);
            loopCharacteristics.setInputDataItem("${" + inputDataItem + "}");
            loopCharacteristics.setCompletionCondition(completionCondition);
            userTask.setLoopCharacteristics(loopCharacteristics);
            process.addFlowElement(userTask);
            //设置网关判断条件
            ExclusiveGateway exclusiveGateway = new ExclusiveGateway();
            exclusiveGateway.setId("createExclusiveGateway" + taskId);
            process.addFlowElement(exclusiveGateway);
        }
        //设置结束节点
        EndEvent endEvent = new EndEvent();
        endEvent.setId("end");
        process.addFlowElement(endEvent);
        //设置节点之间的连线
        SequenceFlow sequenceFlow = new SequenceFlow();
        sequenceFlow.setSourceRef("start");
        sequenceFlow.setTargetRef(taskId > 0 ? "task0" : "end");//大于一个节点
        process.addFlowElement(sequenceFlow);
        String refuseCondition = "${approve==false}";//自定义
        String approveCondition = "${approve==true}";
        for (int i = 0; i < taskId; i++) {
            //节点之间的连线
            String gatewayVar = "createExclusiveGateway" + i;
            SequenceFlow flow = new SequenceFlow();
            flow.setSourceRef("task" + i);
            flow.setTargetRef(gatewayVar);
            process.addFlowElement(flow);
            //不通过节点
            SequenceFlow noFlow = new SequenceFlow();
            noFlow.setSourceRef(gatewayVar);
            noFlow.setTargetRef("end");
            noFlow.setName("不通过");
            noFlow.setConditionExpression(refuseCondition);
            process.addFlowElement(noFlow);
            //通过的节点
            SequenceFlow yesFlow = new SequenceFlow();
            yesFlow.setSourceRef(gatewayVar);
            yesFlow.setTargetRef(taskId == (i + 1) ? "end" : "task" + (i + 1));
            yesFlow.setName("通过");
            yesFlow.setConditionExpression(approveCondition);
            process.addFlowElement(yesFlow);
        }
        //创建一个bpmnModel对象，添加process
        BpmnModel bpmnModel = new BpmnModel();
        bpmnModel.addProcess(process);
        //将bpmnModel 转化为xml 测试展示
        BpmnXMLConverter bpmnXMLConverter = new BpmnXMLConverter();
        byte[] convertToXML = bpmnXMLConverter.convertToXML(bpmnModel);
        try {
            String localPath = System.getProperty("user.dir") + File.separator + flowName + ".bpmn";
            FileUtils.writeByteArrayToFile(new File(localPath), convertToXML);
        } catch (IOException e) {
            e.printStackTrace();
        }
        //部署流程
        repositoryService.createDeployment().addBpmnModel(processKey + ".bpmn", bpmnModel).name(flowName).deploy();
        return processKey;
    }

    /**
     * 开启流程实例
     *
     * @param users       用户List，如：man1:man2:man3,woman1:woman2,mange1
     * @param processKey  流程定义key
     * @param businessKey 业务关联key
     * @return
     */
    @PostMapping("startWorkFlow")
    public String startWorkFlow(String users, String processKey, String businessKey) {
        List userList = Arrays.asList(users.split(","));
        HashMap map = new HashMap<>();
        for (int i = 0; i < userList.size(); i++) {
            map.put("userList" + i, Arrays.asList(userList.get(i).split(":")));
        }
        ProcessInstance processInstance = runtimeService.startProcessInstanceByKey(processKey, businessKey, map);
        return processInstance.getId();//实例ID，可保存在业务流程字段中，方便使用
    }

    /**
     * 审批流程
     *
     * @param user        用户
     * @param businessKey 业务关联key
     * @param isApproved  是否通过
     * @return
     */
    @PostMapping("approveTask")
    public String approveTask(String user, String businessKey, boolean isApproved) {
        List tasks = taskService.createTaskQuery().processInstanceBusinessKey(businessKey).taskAssignee(user).list();
        if (CollUtil.isNotEmpty(tasks)) {
            Task task = tasks.get(0);
            HashMap map = new HashMap<>();
            map.put("approve", isApproved);
            taskService.complete(task.getId(), map);
            if (!isApproved) {
                List list = runtimeService.createProcessInstanceQuery().processInstanceId(task.getProcessInstanceId()).list();
                if (CollUtil.isNotEmpty(list)) {
                    ProcessInstance processInstance = list.get(0);
                    runtimeService.deleteProcessInstance(processInstance.getId(), "已拒绝");
                    return "process instance finished";
                }
            } else {
                List list = taskService.createTaskQuery().processInstanceBusinessKey(businessKey).list();
                if (CollUtil.isEmpty(list)) {
                    return "completed";
                }
            }
            return "execution succeed";
        }
        return "Task not found";
    }
}

流程查询

package net.test.springbootweb.workflow;

import cn.hutool.core.collection.CollUtil;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.alibaba.fastjson.serializer.SerializerFeature;
import org.activiti.engine.*;
import org.activiti.engine.history.HistoricProcessInstance;
import org.activiti.engine.history.HistoricProcessInstanceQuery;
import org.activiti.engine.history.HistoricTaskInstance;
import org.activiti.engine.repository.ProcessDefinition;
import org.activiti.engine.runtime.ProcessInstance;
import org.activiti.engine.task.Task;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;

/**
 * Desc：QueryWorkFlow
 * Date：2021/12/8
 *
 * @author author
 */
@RestController
@RequestMapping("workFlow")
public class QueryWorkFlow {
    @Autowired
    private ProcessEngine processEngine;

    /**
     * 获取部署的流程定义
     *
     * @return
     */
    @PostMapping("getWorkFlowList")
    public String getWorkFlowList() {
        RepositoryService repositoryService = processEngine.getRepositoryService();
        List list = repositoryService.createProcessDefinitionQuery().list();
        JSONArray array = new JSONArray();
        for (ProcessDefinition processDefinition : list) {
            JSONObject object = new JSONObject();
            object.put("定义ID", processDefinition.getId());
            object.put("定义名称", processDefinition.getName());
            object.put("定义KEY", processDefinition.getKey());
            object.put("部署ID", processDefinition.getDeploymentId());
            array.add(object);
        }
        return JSONArray.toJSONString(array, SerializerFeature.WriteMapNullValue);
    }

    /**
     * 根据定义key获取开启的实例
     *
     * @param processKey 流程定义key
     * @return
     */
    @PostMapping("getProcessInstanceList")
    public String getProcessInstanceList(String processKey) {
        HistoricProcessInstanceQuery query = processEngine.getHistoryService().createHistoricProcessInstanceQuery().processDefinitionKey(processKey);
        List list = query.list();//所有实例
        List finished = query.finished().list();//已完成的实例
        RuntimeService runtimeService = processEngine.getRuntimeService();
        List runInstance = runtimeService.createProcessInstanceQuery().processDefinitionKey(processKey).list();//正在进行中的实例
        JSONArray array = new JSONArray();
        for (HistoricProcessInstance historicProcessInstance : list) {
            JSONObject object = new JSONObject();
            object.put("实例ID", historicProcessInstance.getId());
            object.put("实例名称", historicProcessInstance.getName());
            object.put("业务KEY", historicProcessInstance.getBusinessKey());
            object.put("删除原因", historicProcessInstance.getDeleteReason());
            object.put("开始时间", historicProcessInstance.getStartTime());
            object.put("结束时间", historicProcessInstance.getEndTime());
            array.add(object);
        }
        return JSONArray.toJSONString(array, SerializerFeature.WriteMapNullValue);
    }

    /**
     * 根据用户获取任务列表
     *
     * @param user
     * @return
     */
    @PostMapping("getCurtTaskByUser")
    public String getCurtTaskByUser(String user) {
        TaskService taskService = processEngine.getTaskService();
        List list = taskService.createTaskQuery().taskAssignee(user).list();
        JSONArray array = new JSONArray();
        for (Task task : list) {
            JSONObject object = new JSONObject();
            object.put("任务ID", task.getId());
            object.put("任务名称", task.getName());
            object.put("业务KEY", task.getBusinessKey());
            object.put("定义ID", task.getProcessDefinitionId());
            object.put("过程实例ID", task.getProcessInstanceId());
            array.add(object);
        }
        return JSONArray.toJSONString(array, SerializerFeature.WriteMapNullValue);
    }

    /**
     * 获取用户的历史任务
     *
     * @param user
     * @return
     */
    @PostMapping("getHistoryTaskByUser")
    public String getHistoryTaskByUser(String user) {
        HistoryService historyService = processEngine.getHistoryService();
        List list = historyService.createHistoricTaskInstanceQuery().taskAssignee(user).finished().list();
        JSONArray array = new JSONArray();
        //用户的所有的流程实例
        Set instanceIds = list.stream().map(HistoricTaskInstance::getProcessInstanceId).collect(Collectors.toSet());
        if (CollUtil.isNotEmpty(instanceIds)) {
            Map instanceMap = historyService.createHistoricProcessInstanceQuery().processInstanceIds(instanceIds).list()
                    .stream().collect(Collectors.toMap(HistoricProcessInstance::getId, HistoricProcessInstance::getBusinessKey));
            for (HistoricTaskInstance historicTaskInstance : list) {
                JSONObject object = new JSONObject();
                object.put("历史任务ID", historicTaskInstance.getId());
                object.put("历史任务名称", historicTaskInstance.getName());
                object.put("实例开始时间", historicTaskInstance.getStartTime());
                object.put("实例结束时间", historicTaskInstance.getEndTime());
                object.put("流程持续时间", historicTaskInstance.getDurationInMillis());
                object.put("历史业务KEY", instanceMap.get(historicTaskInstance.getProcessInstanceId()));
                array.add(object);
            }
        }
        return JSONArray.toJSONString(array, SerializerFeature.WriteMapNullValue);
    }
}