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README
Apache-2.0

jw-workflow-engine 前端

Vue2 + ElementUI 构建,仿钉钉风格

新版本开发中,见dev分支

  • 优化渲染算法及代码结构,修复流程设计器所有已知Bug(已完成)
  • 精简代码,规范命名及处理流程
  • 删除条件出现异常,分支残缺
  • 宽度过大时,左侧无法全预览
  • 新增并行分支,延时节点(已完成)
    • 并行分支,所有分支同时无条件进入,直到所有分支全部处理结束进入下一个节点。
    • 延时节点,延时阻塞流程一段时间再进入下一个流程
    • 触发器节点,流程经过此处时触发一个动作(发送请求/邮件),并能传递流程数据
  • 优化表单组件结构(开发中)
  • 新增流程发起,在线提交流程,根据设计器渲染表单,根据表单内容条件渲染流程执行树(开发中)
  • 流程数据管理,表单关联(开发中)
  • 表单打印,审批结束后,前端直接生成最终单据(开发中)
  • 开发完整配套工作流后端功能,基于Activity实现(计划中)

感兴趣的小伙伴可以加我微信 willianfu_进群交流

👉 在线体验地址(未适配移动端): 戳我打开演示页面 👈

简介

工作区面板

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演示视频

表单管理

工作流表单管理,支持分组和单组表单拖拽排序

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👉 演示视频

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表单基本设置

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表单布局设计器

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流程设计器

任意条件层级审批流程设计, 审批节点支持多种业务类型设置

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👉 演示视频


自定义复杂流转条件

可视化流程逻辑分支条件

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支持多种类型业务节点,支持配置校验,灵活配置,赋予无限可能 输入图片说明

条件节点优先级动态拖拽,实时刷新

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开发

项目结构

设计器数据

设计器的数据都存在Vuex中,需要传递到后端时,直接取出提交到接口

{
    "formId":"37289743892", //表单ID,由后端生成
    "formName":"补卡申请", //表单名称
    "logo":{ //图标
        "icon":"图标/图片base64",
        "background":"#FEFEFE" //如果是图片则不生效
    },
    //表单权限及其他属性设置
    "settings":{
        "commiter": [], //哪些人可以提交发起表单
    	"admin":[], //表单管理员,可以编辑及导出数据
        "singn": false, //全局设置审批时是否需要签字
        "notify":{
            "type": "APP", //通知类型 APP QQ WX DING EMAIL
            "title": "消息通知标题"
        }
    },
    "group":20, //所在分组
    "formItems":[],//表单设计数据
    "process":{}, //流程数据
    "remark":"备注说明"
}

基础设置

表单数据结构

利用 vue render() 函数,可以通过js动态渲染表单,参见:渲染函数 & JSX — Vue.js (vuejs.org)

组件规范

定义一个组件规范,所有的组件都应当符合这个规范,方便后续自行创建各类组件

公共构造

为了方便存储和解析,仍然使用json来描述一个组件

{
	"name":"my-number-input", //组件名称,项目内应当有此组件
    "isDesign": true, //是否是设计状态,在表单设计时应当为设计状态,发起审批时应当为正常状态
    "required": false, //是否必填项,作为流程条件的话需要必填
    "enablePrint": true, //是否允许打印时显示在表单中
    
    //vue createElement 函数内数据对象(第二个参数),参见 https://cn.vuejs.org/v2/guide/render-function.html
    "config":{
        "props": {}, //组件的属性,符合vue规范
        "style":{}, //样式
        "class":{} //css类名
        //.....
    }
}

不同的组件,它的 config 字段内容是不同的,注意还有一个isDesign ,默认为设计状态,在设计表单时,组件的样式和预览表单时正常显示是不一样的,设计的时候显示的都需要很简洁,预览时才是组件真实的样子。

<template>
	<div>
        <div v-if="isDesign">设计状态</div>
        <div v-else>状态预览</div>
    </div>
</template>
<script>
    export default {
      props:[
          isDesign:{
          	type: Boolean,
          	defalut: true
          }
      ],
      data() {
        return {};
      }
	};
</script>

流程数据结构

流程节点

流程设计器中,每一个可视化元素块都是一个节点,渲染器根据节点类型渲染不同组件

{
    //节点ID,当前流程内唯一,由前端随机生成
	"id": "90aasvbsh8a0a7f", 
    "parentId": "7d89sf7d8sasf", //父级节点ID,用来向上搜索
	//节点类型,ROOT(发起人,根节点)、APPROVAL(审批)、CC(抄送)、CONDITION(条件)、CONCURRENT(并行节点)、DELAY(延时节点)、EMPTY(空节点,占位)
    "type":"ROOT", 
    "name": "节点名称",
    "desc":"节点描述",
    "props":{}, //节点属性,见下方props说明
    "children": {}, //子节点项,内部字段与当前结构相同,为条件/并行 节点的组合末端节点
    //子分支 当type  CONDITION / CONCURRENT 时,该项存在,内容为条件或并行节点内的所有分支
    "branchs":[] 
}

流程节点属性 props

不同类型得节点props不同,里面携带了当前节点设置的一些信息

ROOT (根节点)

根节点是最顶层节点,发起人节点

{
    //发起人权限,哪些 人/部门 可以发起这个审批
   "assignedUser": [
    	{
    		"id": "user_id_001",
    		"name":"张三",
    		"type": "user" //根据类型判断是人或者部门
		},
		{
    		"id": "dept_id_001",
    		"name": "研发部",
    		"type": "dept" ////根据类型判断是人或者部门
		}
    ]
}
APPROVAL(审批节点)

审批节点设置审批人及审批规则

{
    //审批处理的类型 ASSIGN_USER 指定人员、SELF_SELECT 发起人自选、LEADER_TOP 连续多级主管、LEADER 主管、ROLE 指定角色、SELF 发起人自己、REFUSE 自动拒绝
    "assignedType": "类型",
    "mode": "AND", //多人审批时的审批模式,AND 会签、OR 或签、NEXT 顺序依次审批
    "sign": false, //审批同意时是否需要签字
    //审批人为空时的规则
    "nobady": {
       "handler": "PASS", //PASS 直接通过、 TO_ADMIN 转交主管理员、TO_USER 转交指定人员
        "assignedUser":[] //TO_USER 时的指定人员
    },
    //审批超时限制设置
    "timeLimit":{
        //超时时间限制
        "timeout":{
            "unit": "H", //时间单位 M分钟、H小时、D天,
            "value": 2 //时间值
        },
        //超时后的处理规则
        "handler":{
            "type": "REFUSE", //PASS 自动通过、REFUSE 自动驳回、NOTIFY 发送通知进行提醒
            "notify":{
                "once": true, //是否只提醒一次
                "hour": 1 //重复提醒,几小时提醒一次
            }
        }
    },
    "assignedUser":[], //指定审批人员 ASSIGN_USER 时不为空
    //发起人自选
    "selfSelect": {
    	"multiple": true // 是否多选 true/false
	},
    //连续多级主管
    "leaderTop": {
        "endCondition": "TOP", //结束条件 TOP 直到最上级主管、 LEVEL 指定不超过多少级主管
        "endLevel": 1, //指定级别主管审批后结束本节点
    },
    //指定主管审批
    "leader":{
        "level": 1 //发起人指定级别主管
    },
    //指定角色审批
    "role":["admin", "leader", "hr"], //指定审批人为系统角色
}
CONDITION (条件节点)

条件选项节点是 CONDITIONS 的子节点,存在于 branchs 子分支内,用来设置条件

{
    "groupsType":"OR", //条件组逻辑关系 OR、AND
    "groups":[
        {
            "name": "A", //组名 A B C D....依次递增
            "groupType":"AND", //条件组内条件关系 OR、AND
            //组内子条件
            "conditions":[ 
               {
                   "cid": "d78s96fd9s", //组件ID,通过组件ID索引到表单设计器中的组件
                   "compare": ">=", //比较运算符 >大于 <小于 大于等于 小于等于 范围
                   "values": [], //比较值,如果只需要比较一个值,那么只取value[0] 
               }
            ]
        }
    ],
    "expression": "(A AND B) OR C" //自定义表达式,灵活构建逻辑关系
}
CONCURRENT(并行节点)

CONCURRENT是CONCURRENTS的字节点,无条件流转,多路分支同时并行进入

无属性设置
CC(抄送节点)

当到达此节点时,流程状态会被发送给指定的用户

{
    "assignedUser":[], //指定抄送人员
}
DELAY(延时处理节点)

流程到达此节点时,会被阻塞一段时间才被放行

{
    "type": "FIXED", //延时类型 FIXED:到达当前节点后延时固定时长 、AUTO:延时到 dateTime设置的时间
    "time": 30, //延时时间
    "unit": "M", //时间单位 D天 H小时 M分钟
    "dateTime": "18:34:00" //如果当天没有超过设置的此时间点,就延时到这个指定的时间,到了就直接跳过不延时
}
TRIGGER(触发器节点)

流程到达此节点时,会触发一个提前设置好的动作,用来与外部系统对接

{
  type: 'WEBHOOK', //触发的动作类型 WEBHOOK、EMAIL
  http:{
    method: 'GET', //请求方法 支持GET/POST
    url: '', //URL地址,可以直接带参数
    headers: [ //http header
      {
        name: '',
        isField: true,
        value: '' //支持表达式 ${xxx} xxx为表单字段名称
      }
    ],
    contentType: 'FORM', //请求参数类型
    params:[ //请求参数
      {
        name: '',
        isField: true, //是表单字段还是自定义
        value: '' //支持表达式 ${xxx} xxx为表单字段名称
      }
    ],
    retry: 1, //重试次数
    handlerByScript: false, //是否使用脚本处理请求结果
    success: 'function resHandler(res) {\n  return true;\n}',
    fail: 'function resHandler(res) {\n  return true;\n}'
  },
  email:{
    subject: '',
    to: [],
    content: ''
  }
}
EMPTY (空节点)

空节点时用来在设计器中每一个子分支末尾占位的,辅助UI构建,无设置项,处理时直接忽略

核心算法

利用递归遍历实现 流程树json => DOM 的转换

详见组件 views/admin/layout/process/ProcessTree.vue

function getDomTree(h, node) {
    if (this.isPrimaryNode(node)){
        //普通业务节点
        let childDoms = this.getDomTree(h, node.children)
        this.decodeAppendDom(h, node, childDoms)
        return [h('div', {}, childDoms)];
    }else if (this.isBranchNode(node)){
        //遍历分支节点,包含并行及条件节点
        let branchItems = node.branchs.map(branchNode => {
            //处理每个分支内子节点
            let childDoms = this.getDomTree(h, branchNode.children)
            this.decodeAppendDom(h, branchNode, childDoms)
            return h('div', {}, childDoms);
        })
        let bchDom = [h('div', {}, branchItems)]
        //继续遍历分支后的节点
        let afterChildDoms = this.getDomTree(h, node.children)
        return [h('div', {}, [bchDom, afterChildDoms])]
    }else if (this.isEmptyNode(node)){
        //空节点,存在于每个分支尾部
        let childDoms = this.getDomTree(h, node.children)
        this.decodeAppendDom(h, node, childDoms)
        return [h('div', {}, childDoms)];
    }else {
        //遍历到了末端,无子节点
        return [];
    }
}

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简介

工作流设计器,企业OA流程设计。仿钉钉风格,支持可视化拖拽表单组件,动态审批节点,简单易用界面友好,支持复杂流程条件设置 展开 收起
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