SpringBoot + Flowable的使用

女爷i 2023-01-17 07:49 184阅读 0赞

# 前言 #

我们在项目中需要使用到Flowable，鉴于之前对流程引擎并不是很了解，这里准备写一篇作为入门文章。

# 实践 #

这次例子是基于springboot + Flowable ,springboot 的版本是2.3.4.RELEASE，Flowable 的版本为6.3.0

**1、依赖**

<dependency>
                <groupId>org.flowable</groupId>
                <artifactId>flowable-spring-boot-starter</artifactId>
                <version>6.3.0</version>
                <exclusions>
                    <exclusion>
                        <groupId>org.mybatis</groupId>
                        <artifactId>mybatis</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
              
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-jdbc</artifactId>
            </dependency>
            
            <dependency>
                <groupId>com.baomidou</groupId>
                <artifactId>mybatis-plus-boot-starter</artifactId>
                <version>3.3.2</version>
            </dependency>
    
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <scope>runtime</scope>
            </dependency>
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>1.18.10</version>
                <scope>compile</scope>
            </dependency>

**2、依赖（主要添加数据库和flowable相关依赖）**

server:
      port: 8082
    spring:
      datasource:
        driverClassName: com.mysql.cj.jdbc.Driver
        type: com.zaxxer.hikari.HikariDataSource
        url: jdbc:mysql://localhost:3306/test_mybatis?serverTimezone=Asia/Shanghai
        username: root
        password: 123456
        hikari:
          read-only: false
          #客户端等待连接池连接的最大毫秒数
          connection-timeout: 60000
          #允许连接在连接池中空闲的最长时间(以毫秒为单位)
          idle-timeout: 60000
          #连接将被测试活动的最大时间量
          validation-timeout: 3000
          #池中连接关闭后的最长生命周期
          max-lifetime: 60000
          #最大池大小
          maximum-pool-size: 60
          #连接池中维护的最小空闲连接数
          minimum-idle: 10
          #从池返回的连接的默认自动提交行为。默认值为true
          auto-commit: true
          #如果您的驱动程序支持JDBC4，我们强烈建议您不要设置此属性
          connection-test-query: SELECT 1
          #自定义连接池名称
          pool-name: myHikarCp
    
    flowable:
      database-schema-update: false
        #关闭定时任务JOB
      async-executor-activate: false

3、如何定义xml  
flowable建议采用业界标准BPMN2.0的XML来描述需要定义的工作流。所以我们需要在项目中创建一个流程定义，下面这个是我创建的一个xml定义,  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZhamluZ19mZWl5dWU_size_16_color_FFFFFF_t_70]

很多文章上面并没有如何定义BPMN2.0的XML的操作（主要需要 tomcat 和下载flower）  
**（1） 下载tomcat**

[tomcat 下载官网](https://tomcat.apache.org/download-80.cgi)

**（2） 下载flowable的zip文件**

[https://github.com/flowable/flowable-engine/releases/download/flowable-6.4.0/flowable-6.4.0.zip][https_github.com_flowable_flowable-engine_releases_download_flowable-6.4.0_flowable-6.4.0.zip] 下载flowable的zip文件

下载下来解压之后，我们把flowable-6.4.0/wars 下的所有war包复制到tomcat/webapps下面：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZhamluZ19mZWl5dWU_size_16_color_FFFFFF_t_70 1]

拷入  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZhamluZ19mZWl5dWU_size_16_color_FFFFFF_t_70 2]

**（3）登录编辑流程图**

启动成功之后，可以登陆创建流程：http://localhost:8080/flowable-modeler ：

默认账号密码：admin 密码 test

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZhamluZ19mZWl5dWU_size_16_color_FFFFFF_t_70 3]  
BPMN2.0 图有两个需要注意的地方，确定Flowable 中的审批，驳回放置内容（这里例子用的$\{taskUser\} ，也可以用其他的，决定放置到那个地方）  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZhamluZ19mZWl5dWU_size_16_color_FFFFFF_t_70 4]

这里判断之后走那个流程需要($\{finishFlag==“NO”\} 或者 $\{finishFlag==“YES”\} )选择走那个方向，这里的这两个都是自定义的  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZhamluZ19mZWl5dWU_size_16_color_FFFFFF_t_70 5]

**3、例子使用BPMN2.0的XML 文件例子**

<?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">
      <process id="adviceApply" name="投诉建议" isExecutable="true">
        <documentation>投诉建议流程</documentation>
        <startEvent id="startEvent1" name="开始" flowable:formFieldValidation="true"></startEvent>
        <userTask id="customerService" name="客服代表" flowable:candidateGroups="${customerServiceId}" flowable:formFieldValidation="true"></userTask>
        <sequenceFlow id="sid-C443333F-D5FF-41E4-9F84-AA4B33BC57AB" sourceRef="startEvent1" targetRef="customerService"></sequenceFlow>
        <userTask id="department" name="部门领导" flowable:assignee="${taskUser}" flowable:formFieldValidation="true">
          <extensionElements>
            <modeler:initiator-can-complete xmlns:modeler="http://flowable.org/modeler"><![CDATA[false]]></modeler:initiator-can-complete>
          </extensionElements>
        </userTask>
        <userTask id="support" name="专业主管" flowable:assignee="${taskUser}" flowable:formFieldValidation="true">
          <extensionElements>
            <modeler:initiator-can-complete xmlns:modeler="http://flowable.org/modeler"><![CDATA[false]]></modeler:initiator-can-complete>
          </extensionElements>
        </userTask>
        <endEvent id="sid-D7B9B979-C32C-4959-A4F7-129C0691D8E5" name="结束"></endEvent>
        <exclusiveGateway id="sid-A93C80FA-86B7-4200-B486-2A8B4719748D"></exclusiveGateway>
        <exclusiveGateway id="sid-70D7E21E-345D-4CC8-BCDF-55F0DC887303"></exclusiveGateway>
        <exclusiveGateway id="sid-4E7CF6E7-796A-48D1-BACA-FE3C1D95F21B"></exclusiveGateway>
        <userTask id="feedback" name="客服代表" flowable:candidateGroups="${customerServiceId}" flowable:formFieldValidation="true"></userTask>
        <sequenceFlow id="f10" sourceRef="feedback" targetRef="sid-D7B9B979-C32C-4959-A4F7-129C0691D8E5"></sequenceFlow>
        <sequenceFlow id="f1" sourceRef="customerService" targetRef="sid-A93C80FA-86B7-4200-B486-2A8B4719748D"></sequenceFlow>
        <sequenceFlow id="f2" sourceRef="sid-A93C80FA-86B7-4200-B486-2A8B4719748D" targetRef="department">
          <conditionExpression xsi:type="tFormalExpression"><![CDATA[${finishFlag=="NO"}]]></conditionExpression>
        </sequenceFlow>
        <sequenceFlow id="f4" sourceRef="department" targetRef="sid-70D7E21E-345D-4CC8-BCDF-55F0DC887303"></sequenceFlow>
        <sequenceFlow id="f7" sourceRef="support" targetRef="sid-4E7CF6E7-796A-48D1-BACA-FE3C1D95F21B"></sequenceFlow>
        <sequenceFlow id="f5" sourceRef="sid-70D7E21E-345D-4CC8-BCDF-55F0DC887303" targetRef="support">
          <conditionExpression xsi:type="tFormalExpression"><![CDATA[${finishFlag=="NO"}]]></conditionExpression>
        </sequenceFlow>
        <sequenceFlow id="f8" sourceRef="sid-4E7CF6E7-796A-48D1-BACA-FE3C1D95F21B" targetRef="feedback">
          <conditionExpression xsi:type="tFormalExpression"><![CDATA[${finishFlag=="NO"}]]></conditionExpression>
        </sequenceFlow>
        <sequenceFlow id="f9" sourceRef="sid-4E7CF6E7-796A-48D1-BACA-FE3C1D95F21B" targetRef="sid-D7B9B979-C32C-4959-A4F7-129C0691D8E5">
          <conditionExpression xsi:type="tFormalExpression"><![CDATA[${finishFlag=="YES"}]]></conditionExpression>
        </sequenceFlow>
        <sequenceFlow id="f6" sourceRef="sid-70D7E21E-345D-4CC8-BCDF-55F0DC887303" targetRef="sid-D7B9B979-C32C-4959-A4F7-129C0691D8E5">
          <conditionExpression xsi:type="tFormalExpression"><![CDATA[${finishFlag=="YES"}]]></conditionExpression>
        </sequenceFlow>
        <sequenceFlow id="f3" name="通过" sourceRef="sid-A93C80FA-86B7-4200-B486-2A8B4719748D" targetRef="sid-D7B9B979-C32C-4959-A4F7-129C0691D8E5">
          <conditionExpression xsi:type="tFormalExpression"><![CDATA[${finishFlag=="YES"}]]></conditionExpression>
        </sequenceFlow>
      </process>
      <bpmndi:BPMNDiagram id="BPMNDiagram_adviceApply">
        <bpmndi:BPMNPlane bpmnElement="adviceApply" id="BPMNPlane_adviceApply">
          <bpmndi:BPMNShape bpmnElement="startEvent1" id="BPMNShape_startEvent1">
            <omgdc:Bounds height="30.0" width="30.0" x="40.0" y="163.0"></omgdc:Bounds>
          </bpmndi:BPMNShape>
          <bpmndi:BPMNShape bpmnElement="customerService" id="BPMNShape_customerService">
            <omgdc:Bounds height="80.0" width="100.0" x="115.0" y="138.0"></omgdc:Bounds>
          </bpmndi:BPMNShape>
          <bpmndi:BPMNShape bpmnElement="department" id="BPMNShape_department">
            <omgdc:Bounds height="80.0" width="100.0" x="350.0" y="138.0"></omgdc:Bounds>
          </bpmndi:BPMNShape>
          <bpmndi:BPMNShape bpmnElement="support" id="BPMNShape_support">
            <omgdc:Bounds height="80.0" width="100.0" x="585.0" y="138.0"></omgdc:Bounds>
          </bpmndi:BPMNShape>
          <bpmndi:BPMNShape bpmnElement="sid-D7B9B979-C32C-4959-A4F7-129C0691D8E5" id="BPMNShape_sid-D7B9B979-C32C-4959-A4F7-129C0691D8E5">
            <omgdc:Bounds height="28.0" width="28.0" x="866.0" y="300.0"></omgdc:Bounds>
          </bpmndi:BPMNShape>
          <bpmndi:BPMNShape bpmnElement="sid-A93C80FA-86B7-4200-B486-2A8B4719748D" id="BPMNShape_sid-A93C80FA-86B7-4200-B486-2A8B4719748D">
            <omgdc:Bounds height="40.0" width="40.0" x="270.9999791604486" y="158.0"></omgdc:Bounds>
          </bpmndi:BPMNShape>
          <bpmndi:BPMNShape bpmnElement="sid-70D7E21E-345D-4CC8-BCDF-55F0DC887303" id="BPMNShape_sid-70D7E21E-345D-4CC8-BCDF-55F0DC887303">
            <omgdc:Bounds height="40.0" width="40.0" x="500.0" y="158.0"></omgdc:Bounds>
          </bpmndi:BPMNShape>
          <bpmndi:BPMNShape bpmnElement="sid-4E7CF6E7-796A-48D1-BACA-FE3C1D95F21B" id="BPMNShape_sid-4E7CF6E7-796A-48D1-BACA-FE3C1D95F21B">
            <omgdc:Bounds height="40.0" width="40.0" x="740.0" y="158.0"></omgdc:Bounds>
          </bpmndi:BPMNShape>
          <bpmndi:BPMNShape bpmnElement="feedback" id="BPMNShape_feedback">
            <omgdc:Bounds height="80.0" width="100.0" x="830.0" y="138.0"></omgdc:Bounds>
          </bpmndi:BPMNShape>
          <bpmndi:BPMNEdge bpmnElement="f6" id="BPMNEdge_f6">
            <omgdi:waypoint x="520.5" y="197.44301253687323"></omgdi:waypoint>
            <omgdi:waypoint x="520.5" y="314.0"></omgdi:waypoint>
            <omgdi:waypoint x="866.0" y="314.0"></omgdi:waypoint>
          </bpmndi:BPMNEdge>
          <bpmndi:BPMNEdge bpmnElement="f7" id="BPMNEdge_f7">
            <omgdi:waypoint x="684.9499999999999" y="178.0"></omgdi:waypoint>
            <omgdi:waypoint x="740.0" y="178.0"></omgdi:waypoint>
          </bpmndi:BPMNEdge>
          <bpmndi:BPMNEdge bpmnElement="f8" id="BPMNEdge_f8">
            <omgdi:waypoint x="779.5215994962216" y="178.42016806722688"></omgdi:waypoint>
            <omgdi:waypoint x="829.9999999999989" y="178.20899581589958"></omgdi:waypoint>
          </bpmndi:BPMNEdge>
          <bpmndi:BPMNEdge bpmnElement="f9" id="BPMNEdge_f9">
            <omgdi:waypoint x="760.5" y="197.44301253687317"></omgdi:waypoint>
            <omgdi:waypoint x="760.5" y="314.0"></omgdi:waypoint>
            <omgdi:waypoint x="866.0" y="314.0"></omgdi:waypoint>
          </bpmndi:BPMNEdge>
          <bpmndi:BPMNEdge bpmnElement="f10" id="BPMNEdge_f10">
            <omgdi:waypoint x="880.0" y="217.95000000000002"></omgdi:waypoint>
            <omgdi:waypoint x="880.0" y="300.0"></omgdi:waypoint>
          </bpmndi:BPMNEdge>
          <bpmndi:BPMNEdge bpmnElement="sid-C443333F-D5FF-41E4-9F84-AA4B33BC57AB" id="BPMNEdge_sid-C443333F-D5FF-41E4-9F84-AA4B33BC57AB">
            <omgdi:waypoint x="69.94999848995758" y="178.0"></omgdi:waypoint>
            <omgdi:waypoint x="114.9999999999917" y="178.0"></omgdi:waypoint>
          </bpmndi:BPMNEdge>
          <bpmndi:BPMNEdge bpmnElement="f1" id="BPMNEdge_f1">
            <omgdi:waypoint x="214.94999999999868" y="178.1974308625642"></omgdi:waypoint>
            <omgdi:waypoint x="271.4206140679542" y="178.42063490750846"></omgdi:waypoint>
          </bpmndi:BPMNEdge>
          <bpmndi:BPMNEdge bpmnElement="f2" id="BPMNEdge_f2">
            <omgdi:waypoint x="310.528864436638" y="178.41203705401028"></omgdi:waypoint>
            <omgdi:waypoint x="349.99999999999466" y="178.23018428758581"></omgdi:waypoint>
          </bpmndi:BPMNEdge>
          <bpmndi:BPMNEdge bpmnElement="f3" id="BPMNEdge_f3">
            <omgdi:waypoint x="291.0" y="197.94783897384158"></omgdi:waypoint>
            <omgdi:waypoint x="291.0" y="314.1342468261719"></omgdi:waypoint>
            <omgdi:waypoint x="866.0" y="314.1342468261719"></omgdi:waypoint>
          </bpmndi:BPMNEdge>
          <bpmndi:BPMNEdge bpmnElement="f4" id="BPMNEdge_f4">
            <omgdi:waypoint x="449.9499999999953" y="178.20726141078836"></omgdi:waypoint>
            <omgdi:waypoint x="500.4166666666667" y="178.41666666666669"></omgdi:waypoint>
          </bpmndi:BPMNEdge>
          <bpmndi:BPMNEdge bpmnElement="f5" id="BPMNEdge_f5">
            <omgdi:waypoint x="539.5247370727428" y="178.41666666666663"></omgdi:waypoint>
            <omgdi:waypoint x="584.9999999999953" y="178.21812227074233"></omgdi:waypoint>
          </bpmndi:BPMNEdge>
        </bpmndi:BPMNPlane>
      </bpmndi:BPMNDiagram>
    </definitions>

**4、添加关于FlowableConfig 的配置文件，防止乱码**

@Configuration
    public class FlowableConfig implements EngineConfigurationConfigurer<SpringProcessEngineConfiguration> {
     
     
        @Override
        public void configure(SpringProcessEngineConfiguration engineConfiguration) {
            engineConfiguration.setActivityFontName("宋体");
            engineConfiguration.setLabelFontName("宋体");
            engineConfiguration.setAnnotationFontName("宋体");
        }
    }

**5、启动的时候需要动态部署流程实例**  
这里交给CommandLineRunner 方式来实现

@SpringBootApplication
    public class MybatisPlusApplication implements CommandLineRunner { 
    
        public static void main(String[] args) { 
            SpringApplication.run(MybatisPlusApplication.class, args);
        }
    
        @Resource
        private RepositoryService repositoryService;
    
        @Override
        public void run(String... args)  { 
            InputStream inputStream = this.getClass().getResourceAsStream("/process/投诉建议.bpmn20.xml");
            DeploymentBuilder deploymentBuilder = repositoryService.createDeployment();
            deploymentBuilder.addInputStream("投诉建议.bpmn20.xml", inputStream);
            deploymentBuilder.deploy();
        }
    }

**6、controller测试类**

package com.yin.demo.controller;
    
    import io.swagger.annotations.Api;
    import io.swagger.annotations.ApiOperation;
    import lombok.extern.slf4j.Slf4j;
    import org.flowable.bpmn.model.BpmnModel;
    import org.flowable.engine.*;
    import org.flowable.engine.runtime.Execution;
    import org.flowable.engine.runtime.ProcessInstance;
    import org.flowable.identitylink.api.history.HistoricIdentityLink;
    import org.flowable.image.ProcessDiagramGenerator;
    import org.flowable.task.api.Task;
    import org.springframework.web.bind.annotation.*;
    
    import javax.annotation.Resource;
    import javax.servlet.http.HttpServletResponse;
    import java.io.InputStream;
    import java.io.OutputStream;
    import java.util.ArrayList;
    import java.util.HashMap;
    import java.util.List;
    
    @Slf4j
    @RestController
    @RequestMapping("/flower")
    @Api(tags = { "流程引擎-API"})
    public class FlowerController { 
    
        @Resource
        private RuntimeService runtimeService;
    
        @Resource
        private TaskService taskService;
    
        @Resource
        private RepositoryService repositoryService;
    
        @Resource
        private ProcessEngine processEngine;
    
    
        /** * 启动流程() * @param roleId 角色id（我这里配置候选用户,这里就是用roleId） */
        @PostMapping(value = "add")
        @ApiOperation("创建流程引擎")
        public String addExpense(String roleId) { 
            //启动流程
            HashMap<String, Object> map = new HashMap<>(4);
    
            //name="客服代表" flowable:candidateGroups="${customerServiceId}"
    
            map.put("customerServiceId", roleId);
    
            //<process id="adviceApply" name="投诉建议" isExecutable="true">
            ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("adviceApply", map);
            return "提交成功.流程Id为：" + processInstance.getId();
        }
    
        /** * 流转 * * @param processInstanceId 流程id */
        @PutMapping(value = "apply")
        @ApiOperation("流传流程")
        public String apply(String processInstanceId,Long userId,boolean isPass) { 
           // Task task = taskService.createTaskQuery().taskId(taskId).singleResult();
            //查询当前办理人的任务ID
            Task task = taskService.createTaskQuery()
                    //使用流程实例ID
                    .processInstanceId(processInstanceId)
                    //任务办理人
                    .singleResult();
            if (task == null) { 
                throw new RuntimeException("流程不存在");
            }
            //通过审核
            HashMap<String, Object> map = new HashMap<>();
            map.put("taskUser", userId);
            String pass = "NO";
            if(isPass){ 
                pass = "YES";
            }
            map.put("finishFlag", pass);
            taskService.complete(task.getId(), map);
            return "processed ok!";
        }
    
        /** * 生成流程图 * * @param processId 任务ID */
        @GetMapping(value = "processDiagram")
        @ApiOperation("生成流程图")
        public void genProcessDiagram(HttpServletResponse httpServletResponse, String processId) throws Exception { 
            ProcessInstance pi = runtimeService.createProcessInstanceQuery().processInstanceId(processId).singleResult();
    
            //流程走完的不显示图
            if (pi == null) { 
                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 engconf = processEngine.getProcessEngineConfiguration();
            ProcessDiagramGenerator diagramGenerator = engconf.getProcessDiagramGenerator();
            InputStream in = diagramGenerator.generateDiagram(bpmnModel, "png", activityIds, flows, engconf.getActivityFontName(), engconf.getLabelFontName(), engconf.getAnnotationFontName(), engconf.getClassLoader(), 1.0);
            OutputStream out = null;
            byte[] buf = new byte[1024];
            int legth = 0;
            try { 
                out = httpServletResponse.getOutputStream();
                while ((legth = in.read(buf)) != -1) { 
                    out.write(buf, 0, legth);
                }
            } finally { 
                if (in != null) { 
                    in.close();
                }
                if (out != null) { 
                    out.close();
                }
            }
        }
    
    }

# 演示 #

**创建一个流程**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZhamluZ19mZWl5dWU_size_16_color_FFFFFF_t_70 6]

**查看当前流程**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZhamluZ19mZWl5dWU_size_16_color_FFFFFF_t_70 7]

**进行流程流转**

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZhamluZ19mZWl5dWU_size_16_color_FFFFFF_t_70 8]

**再次查看当前流程**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZhamluZ19mZWl5dWU_size_16_color_FFFFFF_t_70 9]

# 附录 #

这里面的演示都使用很多很多service,这里简单讲解一下如何做出信息  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZhamluZ19mZWl5dWU_size_16_color_FFFFFF_t_70 10]

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[https_github.com_flowable_flowable-engine_releases_download_flowable-6.4.0_flowable-6.4.0.zip]: https://github.com/flowable/flowable-engine/releases/download/flowable-6.4.0/flowable-6.4.0.zip
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZhamluZ19mZWl5dWU_size_16_color_FFFFFF_t_70 1]: /images/20221021/4f37ca9b4244480ea74415bbf7e57ad5.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZhamluZ19mZWl5dWU_size_16_color_FFFFFF_t_70 2]: /images/20221021/76892e1ac1c94c3e8c6d429edbe1ea45.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZhamluZ19mZWl5dWU_size_16_color_FFFFFF_t_70 3]: /images/20221021/f1430800f0ac497a8716e95c32ad65f2.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZhamluZ19mZWl5dWU_size_16_color_FFFFFF_t_70 4]: /images/20221021/8dbb16ad11a44359ae639451d1130fd3.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZhamluZ19mZWl5dWU_size_16_color_FFFFFF_t_70 5]: /images/20221021/6f79d16a7825409f93611c5341c2fa49.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZhamluZ19mZWl5dWU_size_16_color_FFFFFF_t_70 6]: /images/20221021/cbfd30f35a45490b8a5fe07f2daa049e.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZhamluZ19mZWl5dWU_size_16_color_FFFFFF_t_70 7]: /images/20221021/79601ac6b0d64be1bd939667439edea5.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZhamluZ19mZWl5dWU_size_16_color_FFFFFF_t_70 8]: /images/20221021/8b653152cb4b43f9b549fd62939a9d8e.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZhamluZ19mZWl5dWU_size_16_color_FFFFFF_t_70 9]: /images/20221021/ddb550973efa47e1b96578c2f51c3f1c.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZhamluZ19mZWl5dWU_size_16_color_FFFFFF_t_70 10]: /images/20221021/426b90438a3748ed901287951440a17e.png