activiti7 会签并行多实例任务实现，一票否决，会签后添加网关判断

 

 

1、功能需求

会签实现多个人同时审批，任意一个人不同意时，会签任务结束，不同意走八戒审批，同意走悟空审批，最后流程结束。流程图如下：

绘制流程图：动态设置审批人，完成条件${(pass == 'no')||(nrOfCompletedInstances/nrOfInstances==1)}

添加表单字段控件FormProperty_29f662k-_!string-_!审批意见-_!请输入-_!s，需和前端约定，控件解析格式

添加执行监听器，任务结束时调用。

 

网关后添加表达式判断

开启流程实例，对流程图中参数赋值

 //启动流程实例
    @GetMapping(value = "/startProcess")
    public AjaxResponse startProcess(@RequestParam("processDefinitionKey") String processDefinitionKey,
                                     @RequestParam("instanceName") String instanceName,
                                     @RequestParam("instanceVariable") String instanceVariable) {
        try {
            if (GlobalConfig.Test) {
                securityUtil.logInAs("bajie");
            } else {
                securityUtil.logInAs(SecurityContextHolder.getContext().getAuthentication().getName());
            }
            List list = Arrays.asList("bajie", "wukong");
            Map map = new HashMap<>();
//设置会签人员
            map.put("countersigner", list);
            map.put("num", list.size());
//初始化pass变量
            map.put("pass", "yes");
            ProcessInstance processInstance = processRuntime.start(ProcessPayloadBuilder
                    .start()
//开启流程，参数为流程图的key，如此接口绑定的流程图为countersign(bpmnjs流程图中的编号)
                    .withProcessDefinitionKey(processDefinitionKey)
                    .withName(instanceName)
                    //.withVariable("content", instanceVariable)
                    //.withVariable("参数2", "参数2的值")
                    .withVariables(map)
                    .withBusinessKey("自定义BusinessKey")
                    .build());
            return AjaxResponse.AjaxData(GlobalConfig.ResponseCode.SUCCESS.getCode(),
                    GlobalConfig.ResponseCode.SUCCESS.getDesc(), processInstance.getName() + "；" + processInstance.getId());
        } catch (Exception e) {
            return AjaxResponse.AjaxData(GlobalConfig.ResponseCode.ERROR.getCode(),
                    "创建流程实例失败", e.toString());
        }
    }

 监听器相关代码

package com.imooc.activitiweb.listener;

import com.imooc.activitiweb.util.SpringUtils;
import org.activiti.engine.TaskService;
import org.activiti.engine.delegate.DelegateExecution;
import org.activiti.engine.delegate.ExecutionListener;
import org.activiti.engine.task.Task;

import java.util.Map;

/**
 * 消息通知任务监听器
 */
public class FileCheckExecutionListener implements ExecutionListener {


    @Override
    public void notify(DelegateExecution execution) {
        //修改审批状态
        Map variables = execution.getVariables();
//在执行监听器中通过，执行实例id获取当前任务信息
        TaskService taskService = SpringUtils.getBean(TaskService.class);
        Task task = taskService.createTaskQuery().processInstanceId(execution.getProcessInstanceId()).executionId(execution.getId()).singleResult();
        if (task == null) {
            return;
        }
//获取当前任务执行人
        String assignee = task.getAssignee();
        System.out.println(assignee);
//通过流程图中表单字段id获取表单字段值，即用户点击审批，在输入框中填入的'yes' 或'no'
        String s = "FormProperty_29f662k";
        Object o = variables.get(s);
//若为no，设置result参数变量为n，pass为no,pass在流程启动时默认初值为yes
        if (o != null && o.toString().equals("no")) {
            //会签结束，设置参数result为N，下个任务为申请
            execution.setVariable("pass", "no");
            execution.setVariable("result", "N");
        } else {
//全部审批完
            Integer complete = (Integer) execution.getParent().getVariable("nrOfCompletedInstances");
            Integer all = (Integer) execution.getParent().getVariable("nrOfInstances");
            execution.setVariable("nrOfCompletedInstances", complete);
            //说明都完成了并且没有人拒绝
            if ((complete + 1) / all == 1) {
                execution.setVariable("result", "Y");
            }
        }
    }
}

工具类

package com.imooc.activitiweb.util;

import org.apache.commons.lang3.StringUtils;
import org.springframework.aop.framework.AopContext;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

/**
 * spring工具类 方便在非spring管理环境中获取bean
 * 
 * @author piesat
 */
@Component
public final class SpringUtils implements BeanFactoryPostProcessor, ApplicationContextAware
{
    /** Spring应用上下文环境 */
    private static ConfigurableListableBeanFactory beanFactory;

    private static ApplicationContext applicationContext;

    @Override
    public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException
    {
        SpringUtils.beanFactory = beanFactory;
    }

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException
    {
        SpringUtils.applicationContext = applicationContext;
    }

    /**
     * 获取对象
     *
     * @param name
     * @return Object 一个以所给名字注册的bean的实例
     * @throws org.springframework.beans.BeansException
     *
     */
    @SuppressWarnings("unchecked")
    public static  T getBean(String name) throws BeansException
    {
        return (T) beanFactory.getBean(name);
    }

    /**
     * 获取类型为requiredType的对象
     *
     * @param clz
     * @return
     * @throws org.springframework.beans.BeansException
     *
     */
    public static  T getBean(Class clz) throws BeansException
    {
        T result = (T) beanFactory.getBean(clz);
        return result;
    }

    /**
     * 如果BeanFactory包含一个与所给名称匹配的bean定义，则返回true
     *
     * @param name
     * @return boolean
     */
    public static boolean containsBean(String name)
    {
        return beanFactory.containsBean(name);
    }

    /**
     * 判断以给定名字注册的bean定义是一个singleton还是一个prototype。 如果与给定名字相应的bean定义没有被找到，将会抛出一个异常（NoSuchBeanDefinitionException）
     *
     * @param name
     * @return boolean
     * @throws org.springframework.beans.factory.NoSuchBeanDefinitionException
     *
     */
    public static boolean isSingleton(String name) throws NoSuchBeanDefinitionException
    {
        return beanFactory.isSingleton(name);
    }

    /**
     * @param name
     * @return Class 注册对象的类型
     * @throws org.springframework.beans.factory.NoSuchBeanDefinitionException
     *
     */
    public static Class getType(String name) throws NoSuchBeanDefinitionException
    {
        return beanFactory.getType(name);
    }

    /**
     * 如果给定的bean名字在bean定义中有别名，则返回这些别名
     *
     * @param name
     * @return
     * @throws org.springframework.beans.factory.NoSuchBeanDefinitionException
     *
     */
    public static String[] getAliases(String name) throws NoSuchBeanDefinitionException
    {
        return beanFactory.getAliases(name);
    }

    /**
     * 获取aop代理对象
     * 
     * @param invoker
     * @return
     */
    @SuppressWarnings("unchecked")
    public static  T getAopProxy(T invoker)
    {
        return (T) AopContext.currentProxy();
    }

    /**
     * 获取当前的环境配置，无配置返回null
     *
     * @return 当前的环境配置
     */
    public static String[] getActiveProfiles()
    {
        return applicationContext.getEnvironment().getActiveProfiles();
    }

    /**
     * 获取当前的环境配置，当有多个环境配置时，只获取第一个
     *
     * @return 当前的环境配置
     */
/*    public static String getActiveProfile()
    {
        final String[] activeProfiles = getActiveProfiles();
        return StringUtils.isNotEmpty(activeProfiles) ? activeProfiles[0] : null;
    }*/
}

流程图xml

  
    
      Flow_0c7d7xo
    
    
      
        
        
      
      Flow_0c7d7xo
      Flow_1p2tz1w
      
        ${num}
        ${(pass == 'no')||(nrOfCompletedInstances/nrOfInstances==1)}
      
    
    
    
      Flow_1mknpc1
      Flow_0f15fkh
    
    
      ${result== 'N'}
    
    
      Flow_1p2tz1w
      Flow_1mknpc1
      Flow_0bp4fi6
    
    
    
      Flow_0bp4fi6
      Flow_006s5b1
    
    
      ${result== 'Y'}
    
    
      Flow_006s5b1
      Flow_0f15fkh
    
    
    
  
  
    
      
        
        
      
      
        
        
        
          
        
      
      
        
        
        
          
        
      
      
        
        
        
          
        
      
      
        
        
      
      
        
        
        
      
      
        
        
          
        
      
      
        
      
      
        
      
      
        
      
      
        
      
      
        
        
          
        
      
    
  

 2.实现效果

会签测试数据两人  bajie  wukong

1.两人都同意

悟空批完

两人都审批完后流程高亮显示，绿色为当前登录用户审批过的节点，灰色为审批过的节点，黄色为当前待审批节点，如下：

悟空批完流程结束。

2.两人中任意一人不同意，走八戒审批

1. 悟空登录，审批不同意，此时八戒未审批

流程图如下

八戒批完，流程结束。

2.八戒同意，悟空不同意，走八戒审批。

八戒批完，流程结束。