BPMN基本问题：Activiti与Spring boot

Question

所以昨天我开始用Spring Boot学习Activiti。在互联网上有很多教程，其中

• 创建将用户保存到数据库的函数。
• 创建任务的BPMN文件。
• 创建控制器以启动、监视和结束任务。

所以，问题是，我不能理解我需要在哪里写代码来发送电子邮件

Answer 1

1. Use below content for your bpmn.xml file as per requirement,
<?xml version="1.0" encoding="UTF-8"?>
<definitions
        xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL"
        xmlns:activiti="http://activiti.org/bpmn"
        targetNamespace="Examples">

    <process id="oneTaskProcess" name="The Email task">
        <startEvent id="theStart" />
        <sequenceFlow id="flow1" sourceRef="theStart" targetRef="emailTask" />
        <serviceTask id="emailTask"
                     name="Email task service invocation"
                     activiti:class="com.mycompany.SendEmail">
        </serviceTask>
        <sequenceFlow id="flow2" sourceRef="emailTask" targetRef="theEnd" />
        <endEvent id="theEnd" />
    </process>

</definitions>

2.Create a service task using java as below,

package com.mycompany.SendEmail;
public class SendEmail implements ActivityBehavior {
    @Override
    public void execute(ActivityExecution execution) throws Exception {
        PvmTransition transition = null;
        // do your business logic.
        try{
            transition = execution.getActivity().findOutgoingTransition("theEnd");
        }catch (Exception e){
            //do nothing
        }
        execution.take(transition);
    }
}