activiti获取连线属性

其他 2018-08-01 23:04:32 阅读次数: 0

今天有一个需求，如下图人提问所示




属性封装如下

//启动流程实例
    public void startProcess(CustomizeProcessVo customizeProcessVo) {
        //基本参数设置
        Map<String, Object> variables = new HashMap<String, Object>();
        variables.put("customizeProcessVo", customizeProcessVo);
        //启动人不为空
        if (!StringUtils.isEmpty(customizeProcessVo.getApplyUserId().toString())) {
            identityService.setAuthenticatedUserId(customizeProcessVo.getApplyUserId().toString());
            variables.put("currentUserId", customizeProcessVo.getApplyUserId());
            runtimeService.startProcessInstanceByKey(customizeProcessVo.getPdKey(), customizeProcessVo.getBusinessKey(), variables);
        } else {
            runtimeService.startProcessInstanceByKey(customizeProcessVo.getPdKey(), customizeProcessVo.getBusinessKey(), variables);//error:Unknown property used in expression: ${currentUserId} --表示开始一定是发起人
        }
    }

然后下文是如何获取当前任务的连线条件的内容

public Object getSeqConditionByTaskId(String taskId) {
        Object value = null;
        Process process = null;
        Task task = taskService.createTaskQuery().taskId(taskId).singleResult();
        //processDefinitionId 对应表ACT_RE_PROCDEF主键信息
        String processDefinitionId = runtimeService.createProcessInstanceQuery().processInstanceId(//
                taskService.createTaskQuery().taskId(taskId).singleResult().getProcessInstanceId())//
                .singleResult().getProcessDefinitionId();
        CustomizeProcessVo customizeProcessVo = (CustomizeProcessVo) runtimeService.getVariable(task.getExecutionId(), "customizeProcessVo");
        //获取bpmnModel对象
        BpmnModel bpmnModel = repositoryService.getBpmnModel(processDefinitionId);
        //获取对应key值的process
        for (Process pro : bpmnModel.getProcesses()) {
            if (pro.getId().equals(customizeProcessVo.getPdKey())) {
                process = pro;
            }
        }
        //获取所有的FlowElement信息
        Collection<FlowElement> flowElements = process.getFlowElements();
        for (FlowElement flowElement : flowElements) {
            //如果是任务节点
            if (flowElement instanceof UserTask) {
                UserTask userTask = (UserTask) flowElement;
                //获取入线信息
                List<SequenceFlow> incomingFlows = userTask.getIncomingFlows();
                for (SequenceFlow sequenceFlow : incomingFlows) {
                    if (sequenceFlow.getConditionExpression() != null) {
                        logger.info("连线表达式{}" + sequenceFlow.getName() + "连线名称{}" + sequenceFlow.getConditionExpression() + "连线下一位处理人{}" + sequenceFlow.getTargetRef());
                        for (String key : customizeProcessVo.getInstanceVars().keySet()) {
                            if (sequenceFlow.getConditionExpression().contains(key)) {
                                value = customizeProcessVo.getInstanceVars().get(key);
                                logger.info("用户输入的此节点变量值{}" + value);
                            }
                        }
                    }
                }
            }
        }
        return value;
    }

运行结果日志如下

2018-04-09 20:43:35.230  INFO 17164 --- [nio-2001-exec-3] c.d.s.base.workflow.act.ActService       : 连线表达式{}大于5时连线名称{}${audit>5}连线下一位处理人{}usertask2
2018-04-09 20:43:35.230  INFO 17164 --- [nio-2001-exec-3] c.d.s.base.workflow.act.ActService       : 用户输入的此节点变量值{}6
2018-04-09 20:43:35.230  INFO 17164 --- [nio-2001-exec-3] c.d.s.base.workflow.act.ActService       : 连线表达式{}小于5时连线名称{}${audit<5}连线下一位处理人{}usertask3
2018-04-09 20:43:35.230  INFO 17164 --- [nio-2001-exec-3] c.d.s.base.workflow.act.ActService       : 用户输入的此节点变量值{}6
2018-04-09 20:43:35.230  INFO 17164 --- [nio-2001-exec-3] c.d.s.base.workflow.act.ActService       : 连线表达式{}驳回连线名称{}${outcome=='驳回'}连线下一位处理人{}usertask3
2018-04-09 20:43:35.230  INFO 17164 --- [nio-2001-exec-3] c.d.s.base.workflow.act.ActService       : 连线表达式{}批准连线名称{}${audit=='批准'}连线下一位处理人{}usertask4
2018-04-09 20:43:35.230  INFO 17164 --- [nio-2001-exec-3] c.d.s.base.workflow.act.ActService       : 用户输入的此节点变量值{}6
2018-04-09 20:43:35.230  INFO 17164 --- [nio-2001-exec-3] c.d.s.base.workflow.act.ActService       : 连线表达式{}批准连线名称{}${audit=='批准'}连线下一位处理人{}usertask5
2018-04-09 20:43:35.230  INFO 17164 --- [nio-2001-exec-3] c.d.s.base.workflow.act.ActService       : 用户输入的此节点变量值{}6
2018-04-09 20:43:35.230  INFO 17164 --- [nio-2001-exec-3] c.d.s.base.workflow.act.ActService       : 连线表达式{}批准连线名称{}${audit=='批准'}连线下一位处理人{}usertask5
2018-04-09 20:43:35.230  INFO 17164 --- [nio-2001-exec-3] c.d.s.base.workflow.act.ActService       : 用户输入的此节点变量值{}6

方法返回的结果如下

6

bpmn内容如下

<?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="dyWYprocess" name="test process" isExecutable="true">
    <startEvent id="startevent0" name="开始" activiti:initiator="${currentUserId}"></startEvent>
    <userTask id="usertask1" name="发起人查看" activiti:assignee="${currentUserId}"></userTask>
    <sequenceFlow id="flow1" sourceRef="startevent0" targetRef="usertask1"></sequenceFlow>
    <userTask id="usertask2" name="德莱文(人)" activiti:assignee="SP1U158"></userTask>
    <sequenceFlow id="flow2" name="大于5时" sourceRef="exclusivegateway1" targetRef="usertask2">
      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${audit>5}]]></conditionExpression>
    </sequenceFlow>
    <userTask id="usertask3" name="诸葛亮(人)" activiti:assignee="SP1U161"></userTask>
    <sequenceFlow id="flow3" name="小于5时" sourceRef="exclusivegateway1" targetRef="usertask3">
      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${audit<5}]]></conditionExpression>
    </sequenceFlow>
    <userTask id="usertask4" name="(云寓)部门" activiti:assignee="SP1D1"></userTask>
    <sequenceFlow id="flow4" name="批准" sourceRef="usertask2" targetRef="usertask4">
      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${audit=='批准'}]]></conditionExpression>
    </sequenceFlow>
    <userTask id="usertask5" name="(角色)总裁" activiti:assignee="SP1R12"></userTask>
    <sequenceFlow id="flow5" name="批准" sourceRef="usertask4" targetRef="usertask5">
      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${audit=='批准'}]]></conditionExpression>
    </sequenceFlow>
    <sequenceFlow id="flow6" name="批准" sourceRef="usertask3" targetRef="usertask5">
      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${audit=='批准'}]]></conditionExpression>
    </sequenceFlow>
    <sequenceFlow id="flow7" name="驳回" sourceRef="usertask5" targetRef="usertask3">
      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${outcome=='驳回'}]]></conditionExpression>
    </sequenceFlow>
    <endEvent id="endevent0" name="End"></endEvent>
    <sequenceFlow id="flow8" name="批准" sourceRef="usertask5" targetRef="endevent0">
      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${audit=='批准'}]]></conditionExpression>
    </sequenceFlow>
    <endEvent id="endevent2" name="End"></endEvent>
    <sequenceFlow id="flow9" name="拒绝" sourceRef="usertask4" targetRef="endevent2">
      <conditionExpression xsi:type="tFormalExpression"><![CDATA[${audit=='拒绝'}]]></conditionExpression>
    </sequenceFlow>
    <exclusiveGateway id="exclusivegateway1" name="Exclusive Gateway"></exclusiveGateway>
    <sequenceFlow id="flow10" sourceRef="usertask1" targetRef="exclusivegateway1"></sequenceFlow>
  </process>
  <bpmndi:BPMNDiagram id="BPMNDiagram_dyWYprocess">
    <bpmndi:BPMNPlane bpmnElement="dyWYprocess" id="BPMNPlane_dyWYprocess">
      <bpmndi:BPMNShape bpmnElement="startevent0" id="BPMNShape_startevent0">
        <omgdc:Bounds height="35.0" width="35.0" x="50.0" y="290.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="usertask1" id="BPMNShape_usertask1">
        <omgdc:Bounds height="55.0" width="105.0" x="120.0" y="280.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="usertask2" id="BPMNShape_usertask2">
        <omgdc:Bounds height="55.0" width="105.0" x="390.0" y="170.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="usertask3" id="BPMNShape_usertask3">
        <omgdc:Bounds height="55.0" width="105.0" x="390.0" y="360.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="usertask4" id="BPMNShape_usertask4">
        <omgdc:Bounds height="55.0" width="105.0" x="540.0" y="170.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="usertask5" id="BPMNShape_usertask5">
        <omgdc:Bounds height="55.0" width="105.0" x="700.0" y="306.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="endevent0" id="BPMNShape_endevent0">
        <omgdc:Bounds height="35.0" width="35.0" x="850.0" y="316.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="endevent2" id="BPMNShape_endevent2">
        <omgdc:Bounds height="35.0" width="35.0" x="690.0" y="180.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="exclusivegateway1" id="BPMNShape_exclusivegateway1">
        <omgdc:Bounds height="40.0" width="40.0" x="270.0" y="288.0"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNEdge bpmnElement="flow1" id="BPMNEdge_flow1">
        <omgdi:waypoint x="85.0" y="307.0"></omgdi:waypoint>
        <omgdi:waypoint x="120.0" y="307.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow2" id="BPMNEdge_flow2">
        <omgdi:waypoint x="290.0" y="288.0"></omgdi:waypoint>
        <omgdi:waypoint x="290.0" y="197.0"></omgdi:waypoint>
        <omgdi:waypoint x="390.0" y="197.0"></omgdi:waypoint>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="16.0" width="55.0" x="290.0" y="249.0"></omgdc:Bounds>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow3" id="BPMNEdge_flow3">
        <omgdi:waypoint x="290.0" y="328.0"></omgdi:waypoint>
        <omgdi:waypoint x="289.0" y="387.0"></omgdi:waypoint>
        <omgdi:waypoint x="390.0" y="387.0"></omgdi:waypoint>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="16.0" width="55.0" x="290.0" y="328.0"></omgdc:Bounds>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow4" id="BPMNEdge_flow4">
        <omgdi:waypoint x="495.0" y="197.0"></omgdi:waypoint>
        <omgdi:waypoint x="540.0" y="197.0"></omgdi:waypoint>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="16.0" width="32.0" x="495.0" y="197.0"></omgdc:Bounds>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow5" id="BPMNEdge_flow5">
        <omgdi:waypoint x="592.0" y="225.0"></omgdi:waypoint>
        <omgdi:waypoint x="752.0" y="306.0"></omgdi:waypoint>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="16.0" width="32.0" x="625.0" y="275.0"></omgdc:Bounds>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow6" id="BPMNEdge_flow6">
        <omgdi:waypoint x="495.0" y="387.0"></omgdi:waypoint>
        <omgdi:waypoint x="752.0" y="361.0"></omgdi:waypoint>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="16.0" width="32.0" x="570.0" y="369.0"></omgdc:Bounds>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow7" id="BPMNEdge_flow7">
        <omgdi:waypoint x="752.0" y="361.0"></omgdi:waypoint>
        <omgdi:waypoint x="752.0" y="524.0"></omgdi:waypoint>
        <omgdi:waypoint x="442.0" y="524.0"></omgdi:waypoint>
        <omgdi:waypoint x="442.0" y="415.0"></omgdi:waypoint>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="16.0" width="32.0" x="543.0" y="509.0"></omgdc:Bounds>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow8" id="BPMNEdge_flow8">
        <omgdi:waypoint x="805.0" y="333.0"></omgdi:waypoint>
        <omgdi:waypoint x="850.0" y="333.0"></omgdi:waypoint>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="16.0" width="32.0" x="805.0" y="333.0"></omgdc:Bounds>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow9" id="BPMNEdge_flow9">
        <omgdi:waypoint x="645.0" y="197.0"></omgdi:waypoint>
        <omgdi:waypoint x="690.0" y="197.0"></omgdi:waypoint>
        <bpmndi:BPMNLabel>
          <omgdc:Bounds height="16.0" width="32.0" x="645.0" y="197.0"></omgdc:Bounds>
        </bpmndi:BPMNLabel>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow10" id="BPMNEdge_flow10">
        <omgdi:waypoint x="225.0" y="307.0"></omgdi:waypoint>
        <omgdi:waypoint x="270.0" y="308.0"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
    </bpmndi:BPMNPlane>
  </bpmndi:BPMNDiagram>
</definitions>

图bpmn如下


自定义流程类如下

package com.dy.common.service.vo.workflow;

import com.dy.common.base.result.Pagination;
import com.dy.common.base.validation.*;
import org.hibernate.validator.constraints.NotEmpty;

import javax.validation.constraints.NotNull;
import java.io.Serializable;
import java.util.Map;

/**
 * Created by Liuyc on 2018/3/24.
 */
public class CustomizeProcessVo implements Serializable {

    /** 自定义流程ID */
    @NotNull(groups = {Update.class, Two.class})
    private Long customizeProcessId;

    /** 服务商ID */
    @NotNull(groups = {Create.class, Update.class, SearchPage.class})
    private Long spId;

    /** 流程类别 */
    @NotNull(groups = {Create.class, Update.class})
    private Short pdType;

    /** 流程名称 */
    private String pdName;

    /** 流程KEY */
    @NotEmpty(groups = {Create.class, Update.class})
    private String pdKey;

    /** 是否首先 */
    private Boolean first;

    /** 自定义流程JSON */
    @NotEmpty(groups = {One.class})
    private String flowJson;

    /*==============================S查询条件S==============================*/
    @NotNull(groups = {SearchPage.class})
    private Pagination page;
    /*==============================E查询条件E==============================*/

    /*==============================S流程启动参数S==============================*/
    /** 业务主键（如合同ID、物业合同ID、工作联系单ID，格式：CONTRACT_{id}、PROPERTY_CONTRACT_{id}、WORKSHEET_{id}） */
    @NotEmpty(groups = {Two.class})
    private String businessKey;

    /** 发起人用户ID */
    @NotNull(groups = {Two.class})
    private Long applyUserId;

    /** 实例启动变量 */
    private Map<String, Object> instanceVars;
    /*==============================S流程启动参数S==============================*/

    public Long getCustomizeProcessId() {
        return customizeProcessId;
    }

    public void setCustomizeProcessId(Long customizeProcessId) {
        this.customizeProcessId = customizeProcessId;
    }

    public Long getSpId() {
        return spId;
    }

    public void setSpId(Long spId) {
        this.spId = spId;
    }

    public Short getPdType() {
        return pdType;
    }

    public void setPdType(Short pdType) {
        this.pdType = pdType;
    }

    public String getPdName() {
        return pdName;
    }

    public void setPdName(String pdName) {
        this.pdName = pdName;
    }

    public String getPdKey() {
        return pdKey;
    }

    public void setPdKey(String pdKey) {
        this.pdKey = pdKey;
    }

    public Boolean getFirst() {
        return first;
    }

    public void setFirst(Boolean first) {
        this.first = first;
    }

    public String getFlowJson() {
        return flowJson;
    }

    public void setFlowJson(String flowJson) {
        this.flowJson = flowJson;
    }

    public Pagination getPage() {
        return page;
    }

    public void setPage(Pagination page) {
        this.page = page;
    }

    public String getBusinessKey() {
        return businessKey;
    }

    public void setBusinessKey(String businessKey) {
        this.businessKey = businessKey;
    }

    public Long getApplyUserId() {
        return applyUserId;
    }

    public void setApplyUserId(Long applyUserId) {
        this.applyUserId = applyUserId;
    }

    public Map<String, Object> getInstanceVars() {
        return instanceVars;
    }

    public void setInstanceVars(Map<String, Object> instanceVars) {
        this.instanceVars = instanceVars;
    }
}

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