Vue+LogicFlow+Flowable实现工作流
作者：王八八。
本文主要介绍了Vue+LogicFlow+Flowable实现工作流,文中通过示例代码介绍的非常详细,对大家的学习或者工作具有一定的参考学习价值,需要的朋友们下面随着小编来一起学习学习吧
一、实现效果
前端使用LogicFlow框架绘制流程图，可以导出为xml工作流标准格式数据，通过xml文件传递到后端进行Flowable流程注册，并保存到数据库中。
二、BPM传输文件格式（.xml）
如需添加承办人的话，需要在LogicFlow导出文件的基础上手动添加xmlns:flowable="http://flowable.org/bpmn"flowable插件，不然后台无法识别flowable:candidateUsers。
<bpmn:definitions xmlns:flowable="http://flowable.org/bpmn" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:bpmn="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:dc="http://www.omg.org/spec/DD/20100524/DC" xmlns:di="http://www.omg.org/spec/DD/20100524/DI" id="Definitions_5588fe5_6" targetNamespace="http://logic-flow.org" exporter="logicflow" exporterVersion="1.2.0">
<bpmn:process isExecutable="true" id="Process_2a9c067_6">
<bpmn:startEvent id="Event_14efe0e" name="开始节点" flowable:candidateUsers="admin,admin1,admin2">
<bpmn:outgoing>Flow_a3e7d0c</bpmn:outgoing>
</bpmn:startEvent>
<bpmn:userTask id="Activity_602107f" name="普通节点" flowable:candidateUsers="uesr,uesr1,uesr2">
<bpmn:incoming>Flow_a3e7d0c</bpmn:incoming>
<bpmn:outgoing>Flow_3f9a386</bpmn:outgoing>
</bpmn:userTask>
<bpmn:endEvent id="Event_49a11b4" name="结束节点">
<bpmn:incoming>Flow_3f9a386</bpmn:incoming>
</bpmn:endEvent>
<bpmn:sequenceFlow id="Flow_a3e7d0c" sourceRef="Event_14efe0e" targetRef="Activity_602107f"/>
<bpmn:sequenceFlow id="Flow_3f9a386" sourceRef="Activity_602107f" targetRef="Event_49a11b4"/>
</bpmn:process>
<bpmndi:BPMNDiagram id="BPMNDiagram_1">
<bpmndi:BPMNPlane id="BPMNPlane_1" bpmnElement="Process_2a9c067">
<bpmndi:BPMNEdge id="Flow_a3e7d0c_di" bpmnElement="Flow_a3e7d0c">
<di:waypoint x="343" y="164"/>
<di:waypoint x="448" y="164"/>
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge id="Flow_3f9a386_di" bpmnElement="Flow_3f9a386">
<di:waypoint x="548" y="164"/>
<di:waypoint x="665" y="164"/>
</bpmndi:BPMNEdge>
<bpmndi:BPMNShape id="Event_14efe0e_di" bpmnElement="Event_14efe0e">
<dc:Bounds x="305" y="144" width="40" height="40"/>
<bpmndi:BPMNLabel>
<dc:Bounds x="305" y="197" width="40" height="14"/>
</bpmndi:BPMNLabel>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape id="Activity_602107f_di" bpmnElement="Activity_602107f">
<dc:Bounds x="448" y="124" width="100" height="80"/>
<bpmndi:BPMNLabel>
<dc:Bounds x="478" y="157" width="40" height="14"/>
</bpmndi:BPMNLabel>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape id="Event_49a11b4_di" bpmnElement="Event_49a11b4">
<dc:Bounds x="663" y="144" width="40" height="40"/>
<bpmndi:BPMNLabel>
<dc:Bounds x="663" y="197" width="40" height="14"/>
</bpmndi:BPMNLabel>
</bpmndi:BPMNShape>
</bpmndi:BPMNPlane>
</bpmndi:BPMNDiagram>
</bpmn:definitions>
三、前端框架（LogicFlow）
- LogicFlow.vue
<template>
<div class="container" ref="container"></div>
<BpmnNodePanel :lf="lf"></BpmnNodePanel>
<div class="node-item">
<div class="node-item-icon bpmn-save" @click="saveNode()"></div>
<span class="node-label">保存</span>
<div class="node-item-icon bpmn-save" @click="cleanNode()"></div>
<span class="node-label">清空</span>
<div class="node-item-icon bpmn-save" @click="reloadNode()"></div>
<span class="node-label">加载</span>
<div class="node-item-icon bpmn-save" @click="deleteNode()"></div>
<span class="node-label">删除</span>
<div class="node-item-icon bpmn-save" @click="getList()"></div>
<span class="node-label">获取定义流程</span>
<div class="node-item-icon bpmn-save" @click="flowRun()"></div>
<span class="node-label">工作流实例</span>
</div>
</template>
<script>
import LogicFlow from '@logicflow/core'
import '@logicflow/core/dist/style/index.css'
import { BpmnElement, BpmnXmlAdapter, Menu } from '@logicflow/extension'
import '@logicflow/extension/lib/style/index.css'
import BpmnNodePanel from "./BpmnNodePanel.vue"
import { addFlow, infoFlow, deleteFlow, getDeployList, flowRun } from "../api/server"
import { addFlowable, addProp, getTypeNameByTag, setValueByTag } from '../utils/xml'
export default {
data() {
return {
lf: void 0,
xmlData: void 0,
definitionsId: void 0,
processId: void 0,
}
},
components: { BpmnNodePanel },
created() {},
mounted() {
this.loadFlow()
},
methods: {
loadFlow() {
LogicFlow.use(BpmnElement)
LogicFlow.use(BpmnXmlAdapter)
LogicFlow.use(Menu)
//初始化
this.lf = new LogicFlow({
container: this.$refs.container,
stopScrollGraph: true,
stopZoomGraph: true,
grid: false,
keyboard: {
enabled: true,
},
});
// this.lf.setDefaultEdgeType('bezier')
this.lf.render();
},
// 保存
saveNode() {
// 获取xml数据
this.xmlData = this.lf.getGraphData();
// 添加flowable扩展
this.xmlData = addFlowable(this.xmlData)
// 判断是否为文档编辑
if (this.processId) {
// 修改为原流程id
this.xmlData = setValueByTag(this.xmlData, 'bpmn:definitions', 'id', this.definitionsId)
this.xmlData = setValueByTag(this.xmlData, 'bpmn:process', 'id', this.processId)
} else {
// 添加节点用户 个人assignee 候选人candidateUsers 候选组候选人candidateGroups 动态设置${employee}
// this.xmlData = addProp(this.xmlData, 'bpmn:startEvent', 'flowable:candidateUsers', 'zhao,qian,sun')
this.xmlData = addProp(this.xmlData, 'bpmn:userTask', 'flowable:candidateUsers', 'li,zhou,wang')
}
const data = {
name: '测试流程',
xml: this.xmlData
}
// 请求后台接口（添加工作流）
addFlow(data)
.then(res => {
console.log(res)
})
.catch(err => {
console.log(err)
})
},
// 清除
cleanNode() {
this.lf.clearData()
},
// 重新加载
reloadNode() {
// 查询数据
const data = {
id: 'ff292b5d-4193-11ee-8e48-502b73dc5fce',
name: '测试流程'
}
infoFlow(data)
.then(res => {
if (res.result) {
// 获取processId
const definitionsNodes = getTypeNameByTag(res.result, 'bpmn:definitions')
const processNodes = getTypeNameByTag(res.result, 'bpmn:process')
this.definitionsId = definitionsNodes.id
this.processId = processNodes.id
// 渲染数据
this.lf.render(res.result);
}
console.log(res)
})
.catch(err => {
console.log(err)
})
},
// 删除数据
deleteNode() {
// 查询数据
const data = {
id: ''
}
deleteFlow(data)
.then(res => {
console.log(res)
})
.catch(err => {
console.log(err)
})
},
// 获取数据
getList() {
getDeployList()
.then(res => {
console.log(res)
})
.catch(err => {
console.log(err)
})
},
// 流程实例
flowRun() {
flowRun()
.then(res => {
console.log(res)
})
.catch(err => {
console.log(err)
})
},
},
}
</script>
<style scoped>
.container{
width: 100%;
height: 100%;
}
.node-item {
position: absolute;
top: 350px;
left: 10px;
width: 50px;
padding: 10px;
background-color: white;
box-shadow: 0 0 10px 1px rgb(228, 224, 219);
border-radius: 6px;
text-align: center;
z-index: 101;
}
.node-item-icon {
width: 30px;
height: 30px;
margin-left: 10px;
background-size: cover;
}
.node-label {
font-size: 12px;
margin-top: 5px;
user-select: none;
}
.bpmn-save {
background: url(data:image/png;base64,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)
center center no-repeat;
cursor: grab;
}
</style>
2.BpmnNodePanel.vue
<template>
<div class="node-panel">
<!-- <div class="node-item" @mousedown="openSelection()">
<div class="node-item-icon bpmn-selection"></div>
<span class="node-label">选区</span>
</div> -->
<div class="node-item" @mousedown="addStartNode()">
<div class="node-item-icon bpmn-start"></div>
<span class="node-label">开始节点</span>
</div>
<div class="node-item" @mousedown="addUserTask()">
<div class="node-item-icon bpmn-user"></div>
<span class="node-label">普通节点</span>
</div>
<!-- <div class="node-item" @mousedown="addServiceTask()">
<div class="node-item-icon bpmn-service"></div>
<span class="node-label">系统</span>
</div> -->
<!-- <div class="node-item" @mousedown="addGateWay()">
<div class="node-item-icon bpmn-gateway"></div>
<span class="node-label">判断</span>
</div> -->
<div class="node-item" @mousedown="addEndNode()">
<div class="node-item-icon bpmn-end"></div>
<span class="node-label">结束节点</span>
</div>
</div>
</template>
<script>
import LogicFlow from '@logicflow/core';
export default {
name: "BpmnNodePanel",
data() {
return {}
},
props: {
lf: Object,
},
mounted() {
//选区框选使用的
let lf = this.$props.lf
lf &&
lf.on("selection:selected", () => {
lf.updateEditConfig({
stopMoveGraph: false,
});
});
},
methods: {
openSelection() {
(this.$props.lf).updateEditConfig({
stopMoveGraph: true
});
},
addStartNode() {
(this.$props.lf).dnd.startDrag({
type: "bpmn:startEvent",
text: "开始节点",
});
},
addUserTask() {
(this.$props.lf).dnd.startDrag({
type: "bpmn:userTask",
text: "普通节点",
});
},
addServiceTask() {
(this.$props.lf).dnd.startDrag({
type: "bpmn:serviceTask",
text: "系统",
});
},
addGateWay() {
(this.$props.lf).dnd.startDrag({
type: "bpmn:exclusiveGateway",
text: "判断",
});
},
addEndNode() {
(this.$props.lf).dnd.startDrag({
type: "bpmn:endEvent",
text: "结束节点",
});
},
},
};
</script>
<style>
.node-panel {
position: absolute;
top: 100px;
left: 10px;
width: 50px;
padding: 10px;
background-color: white;
box-shadow: 0 0 10px 1px rgb(228, 224, 219);
border-radius: 6px;
text-align: center;
z-index: 101;
}
.node-item {
margin-bottom: 10px;
}
.node-item-icon {
width: 30px;
height: 30px;
margin-left: 10px;
background-size: cover;
}
.node-label {
font-size: 12px;
margin-top: 5px;
user-select: none;
}
.bpmn-selection {
background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAAH6ji2bAAAABGdBTUEAALGPC/xhBQAAAOVJREFUOBGtVMENwzAIjKP++2026ETdpv10iy7WFbqFyyW6GBywLCv5gI+Dw2Bluj1znuSjhb99Gkn6QILDY2imo60p8nsnc9bEo3+QJ+AKHfMdZHnl78wyTnyHZD53Zzx73MRSgYvnqgCUHj6gwdck7Zsp1VOrz0Uz8NbKunzAW+Gu4fYW28bUYutYlzSa7B84Fh7d1kjLwhcSdYAYrdkMQVpsBr5XgDGuXwQfQr0y9zwLda+DUYXLaGKdd2ZTtvbolaO87pdo24hP7ov16N0zArH1ur3iwJpXxm+v7oAJNR4JEP8DoAuSFEkYH7cAAAAASUVORK5CYII=)
center center no-repeat;
cursor: grab;
}
.bpmn-start {
background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAAH6ji2bAAAABGdBTUEAALGPC/xhBQAAAnBJREFUOBGdVL1rU1EcPfdGBddmaZLiEhdx1MHZQXApraCzQ7GKLgoRBxMfcRELuihWKcXFRcEWF8HBf0DdDCKYRZpnl7p0svLe9Zzbd29eQhTbC8nv+9zf130AT63jvooOGS8Vf9Nt5zxba7sXQwODfkWpkbjTQfCGUd9gIp3uuPP8bZ946g56dYQvnBg+b1HB8VIQmMFrazKcKSvFW2dQTxJnJdQ77urmXWOMBCmXM2Rke4S7UAW+/8ywwFoewmBps2tu7mbTdp8VMOkIRAkKfrVawalJTtIliclFbaOBqa0M2xImHeVIfd/nKAfVq/LGnPss5Kh00VEdSzfwnBXPUpmykNss4lUI9C1ga+8PNrBD5YeqRY2Zz8PhjooIbfJXjowvQJBqkmEkVnktWhwu2SM7SMx7Cj0N9IC0oQXRo8xwAGzQms+xrB/nNSUWVveI48ayrFGyC2+E2C+aWrZHXvOuz+CiV6iycWe1Rd1Q6+QUG07nb5SbPrL4426d+9E1axKjY3AoRrlEeSQo2Eu0T6BWAAr6COhTcWjRaYfKG5csnvytvUr/WY4rrPMB53Uo7jZRjXaG6/CFfNMaXEu75nG47X+oepU7PKJvvzGDY1YLSKHJrK7vFUwXKkaxwhCW3u+sDFMVrIju54RYYbFKpALZAo7sB6wcKyyrd+aBMryMT2gPyD6GsQoRFkGHr14TthZni9ck0z+Pnmee460mHXbRAypKNy3nuMdrWgVKj8YVV8E7PSzp1BZ9SJnJAsXdryw/h5ctboUVi4AFiCd+lQaYMw5z3LGTBKjLQOeUF35k89f58Vv/tGh+l+PE/wG0rgfIUbZK5AAAAABJRU5ErkJggg==)
center center no-repeat;
cursor: grab;
}
.bpmn-end {
background: url(data:image/png;base64,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)
center center no-repeat;
cursor: grab;
}
.bpmn-user {
background: url(data:image/png;base64,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)
center center no-repeat;
cursor: grab;
}
.bpmn-gateway {
background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABUAAAAVCAYAAAHeEJUAAAAABGdBTUEAALGPC/xhBQAAAvVJREFUOBGNVEFrE0EU/mY3bQoiFlOkaUJrQUQoWMGePLX24EH0IIoHKQiCV0G8iE1covgLiqA/QTzVm1JPogc9tIJYFaQtlhQxqYjSpunu+L7JvmUTU3AgmTfvffPNN++9WSA1DO182f6xwILzD5btfAoQmwL5KJEwiQyVbSVZ0IgRyV6PTpIJ81E5ZvqfHQR0HUOBHW4L5Et2kQ6Zf7iAOhTFAA8s0pEP7AXO1uAA52SbqGk6h/6J45LaLhO64ByfcUzM39V7ZiAdS2yCePPEIQYvTUHqM/n7dgQNfBKWPjpF4ISk8q3J4nB11qw6X8l+FsF3EhlkEMfrjIer3wJTLwS2aCNcj4DbGxXTw00JmAuO+Ni6bBxVUCvS5d9aa04+so4pHW5jLTywuXAL7jJ+D06sl82Sgl2JuVBQn498zkc2bGKxULHjCnSMadBKYDYYHAtsby1EQ5lNGrQd4Y3v4Zo0XdGEmDno46yCM9Tk+RiJmUYHS/aXHPNTcjxcbTFna000PFJHIVZ5lFRqRpJWk9/+QtlOUYJj9HG5pVFEU7zqIYDVsw2s+AJaD8wTd2umgSCCyUxgGsS1Y6TBwXQQTFuZaHcd8gAGioE90hlsY+wMcs30RduYtxanjMGal8H5dMW67dmT1JFtYUEe8LiQLRsPZ6IIc7A4J5tqco3T0pnv/4u0kyzrYUq7gASuEyI8VXKvB9Odytv6jS/PNaZBln0nioJG/AVQRZvApOdhjj3Jt8QC8Im09SafwdBdvIpztpxWxpeKCC+EsFdS8DCyuCn2munFpL7ctHKp+Xc5cMybeIyMAN33SPL3ZR9QV1XVwLyzHm6Iv0/yeUuUb7PPlZC4D4HZkeu6dpF4v9j9MreGtMbxMMRLIcjJic9yHi7WQ3yVKzZVWUr5UrViJvn1FfUlwe/KYVfYyWRLSGNu16hR01U9IacajXPei0wx/5BqgInvJN+MMNtNme7ReU9SBbgntovn0kKHpFg7UogZvaZiOue/q1SBo9ktHzQAAAAASUVORK5CYII=)
center center no-repeat;
cursor: grab;
}
.bpmn-service {
background: url(data:image/png;base64,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)
center center no-repeat;
cursor: grab;
}
</style>
3.xml.js
/**
* 添加flowable扩展
* @param {*} xmlstr
* @returns
*/
export function addFlowable(xmlstr) {
const part1 = xmlstr.slice(0, 43); // 从开头到指定位置之前的部分
const part2 = xmlstr.slice(43); // 从指定位置到末尾的部分
const newString = part1 + 'xmlns:flowable="http://flowable.org/bpmn" ' + part2; // 拼接成新的字符串
return newString
}
/**
* 添加属性信息
* @param {*} xmlstr
* @returns
*/
export function addProp(xmlstr, Elements, key, value) {
// 创建一个XML文档对象
const parser = new DOMParser();
const xmlDoc = parser.parseFromString(xmlstr, 'application/xml');
// 查找元素
const userTaskElement = xmlDoc.getElementsByTagName(Elements);
for (let i = 0; i < userTaskElement.length; i++) {
if (!userTaskElement[i].attributes[key]) {
userTaskElement[i].setAttribute(key, value);
}
}
// 将修改后的XML文档转换回字符串
const xmlSerializer = new XMLSerializer();
const modifiedXmlString = xmlSerializer.serializeToString(xmlDoc);
return modifiedXmlString;
}
/**
*根据标签名称返回xml内容，标签名必须唯一，若不满足，修改方法
* @param {*} xmlstr xml字符串
* @param {element} tagName 标签名称，如<Name>
*/
export function getTypeNameByTag(xmlstr, tagName) {
const parser = new DOMParser()
const xmlDoc = parser.parseFromString(xmlstr, 'application/xml')
const nameNodes = xmlDoc.getElementsByTagName(tagName)[0]
if (nameNodes) {
return nameNodes
} else {
return false
}
}
/**
* 根据标签名称修改内容
* @param {*} xmlstr xml字符串
* @param {element} tagName 标签名称，如<Name>
* @param {*} key 修改对应key
* @param {*} value 修改值value
* @returns
*/
export function setValueByTag(xmlstr, tagName, key, value) {
// 字符串转xml
const parser = new DOMParser()
const xmlDoc = parser.parseFromString(xmlstr, 'application/xml')
const nameNodes = xmlDoc.getElementsByTagName(tagName)[0]
nameNodes.setAttribute(key, value);
// xml转字符串
const s = new XMLSerializer();
const xml = s.serializeToString(xmlDoc);
return xml;
}
4.server.js
import request from '../utils/request';
const url = 'http://localhost:8088'
/**
* 添加（编辑）工作流
* @param {*} data
* @returns
*/
export function addFlow(data) {
return request({
url: url + '/flow/addFlow',
method: 'post',
data,
});
}
/**
* 查询工作流
* @param {*} data
* @returns
*/
export function infoFlow(data) {
return request({
url: url + '/flow/infoFlow',
method: 'post',
data,
});
}
/**
* 删除工作流
* @param {*} data
* @returns
*/
export function deleteFlow(data) {
return request({
url: url + '/flow/deleteFlow',
method: 'post',
data,
});
}
/**
* 获取工作流定义
* @param {*} data
* @returns
*/
export function getDeployList(data) {
return request({
url: url + '/flow/getDeployList',
method: 'post',
data,
});
}
/**
* 工作流实例
* @param {*} data
* @returns
*/
export function flowRun(data) {
return request({
url: url + '/flow/deploymentRun',
method: 'post',
data,
});
}
5.request.js
import axios from 'axios';
const service = axios.create({});
service.defaults.timeout = 20000;
// 请求拦截器
service.interceptors.request.use(
(config) => {
return config;
},
(error) => {
console.log(error);
return Promise.reject(error);
}
);
// 响应拦截器
service.interceptors.response.use(
(response) => {
return response.data;
},
(error) => {
return Promise.reject(error);
}
);
export default service;
四、后端代码（Flowable）
1.FlowController .java
@RestController
public class FlowController {
@Autowired
FlowService flowService;
// 工作流部署（添加、编辑）
@CrossOrigin
@PostMapping("/flow/addFlow")
public Result addFlow(@RequestBody Map<String,String> map){
return flowService.AddFlow(map.get("id"), map.get("name"), map.get("xml"), map.get("key"));
}
// 工作流返回
@CrossOrigin
@PostMapping("/flow/infoFlow")
public Result infoFlow(@RequestBody Map<String,String> map) {
return flowService.InfoFlow(map.get("id"), map.get("name"));
}
// 工作流删除
@CrossOrigin
@PostMapping("/flow/deleteFlow")
public Result deleteFlow(@RequestBody Map<String,String> map) {
return flowService.DeleteFlow(map.get("id"));
}
// 工作流查询
@CrossOrigin
@PostMapping("/flow/getDeployList")
public Result getDeployList() {
return flowService.GetDeployList();
}
// 流程实例
@CrossOrigin
@PostMapping("/flow/deploymentRun")
public Result deploymentRun(@RequestBody Map<String,String> map) {
return flowService.DeploymentRun(map.get("userId"), map.get("key"));
}
// 流程查询
@CrossOrigin
@PostMapping("/flow/infoTask")
public Result InfoTask(@RequestBody Map<String,String> map) {
return flowService.InfoTask(map.get("userId"));
}
// 流程执行
@CrossOrigin
@PostMapping("/flow/makeTask")
public Result MakeTask(@RequestBody Map<String,String> map) {
return flowService.MakeTask(map.get("userId"));
}
// 流程历史
@CrossOrigin
@PostMapping("/flow/taskHistory")
public Result TaskHistory() {
return flowService.TaskHistory();
}
// 测试
@CrossOrigin
@PostMapping("/test")
public Result test(@RequestBody AskForLeaveVO test) {
return flowService.test(test);
}
}
2.FlowService .java
@Service
public class FlowService {
@Autowired
ProcessEngine processEngine;
@Autowired
FlowTreeService flowTreeService;
/**
* 工作流部署（添加、编辑）
* @param name 名称
* @param xml xml
* @return
*/
@Transactional
public Result AddFlow(String id, String name, String xml, String key){
try {
RepositoryService repositoryService = processEngine.getRepositoryService();
// 创建新流程
Deployment deployment = repositoryService.createDeployment()
.addString(name + ".bpmn", xml)
.deploy();
// 将工作流信息保存到流程树表
flowTreeService.AutoSave(id, deployment.getId(), key);
System.out.println("id : " + id);
System.out.println("添加id : " + deployment.getId());
System.out.println("添加key : " + key);
return Result.ok("添加成功", deployment.getId());
} catch (Exception e) {
e.printStackTrace();
return Result.error("添加失败");
}
}
/**
* 工作流返回（返回xml）
* @param id 查询id
* @param name 名称
* @return
*/
@Transactional
public Result InfoFlow(String id, String name) {
try {
// 流程查询
RepositoryService repositoryService = processEngine.getRepositoryService();
InputStream resourceAsStream = repositoryService.getResourceAsStream(id, name + ".bpmn");
// Java流转String
String resultXml = new BufferedReader(new InputStreamReader(resourceAsStream,"utf-8"))
.lines().collect(Collectors.joining(System.lineSeparator()));
return Result.ok("查询成功", resultXml);
} catch (Exception e) {
e.printStackTrace();
}
return Result.error("查询失败");
}
/**
* 工作流删除
* @param id
* @return
*/
@Transactional
public Result DeleteFlow(String id){
try {
RepositoryService repositoryService = processEngine.getRepositoryService();
// 设置为TRUE 级联删除流程定义，及时流程有实例启动，也可以删除，设置为false 非级联删除操作。
repositoryService.deleteDeployment(id);
System.out.println("删除id : " + id);
return Result.ok("删除成功", id);
} catch (Exception e) {
e.printStackTrace();
return Result.error("删除失败");
}
}
/**
* 工作流部署列表查询
* @return
*/
@Transactional
public Result GetDeployList() {
try {
RepositoryService repositoryService = processEngine.getRepositoryService();
List<ProcessDefinition> list = repositoryService.createProcessDefinitionQuery().list();
System.out.println("list : " + list);
return Result.ok("查询成功");
} catch (Exception e) {
e.printStackTrace();
return Result.error("查询失败");
}
}
/**
* 启动流程实例
* @param userId 发起人
* @param key 流程key
* @return
*/
@Transactional
public Result DeploymentRun(String userId, String key){
try {
// Map<String, Object> variables = new HashMap<String, Object>();
// variables.put("employee", userId);
RuntimeService runtimeService = processEngine.getRuntimeService();
ProcessInstance processInstance = runtimeService.startProcessInstanceByKey(key);
//获取流程实例的相关信息
System.out.println("流程定义的id = " + processInstance.getProcessDefinitionId());
System.out.println("流程实例的id = " + processInstance.getId());
return Result.ok("成功", "流程实例id = " + processInstance.getId());
} catch (Exception e) {
e.printStackTrace();
return Result.error("失败");
}
}
/**
* 查询流程任务
* @param userId
* @return
*/
@Transactional
public Result InfoTask(String userId){
try {
TaskService taskService = processEngine.getTaskService();
// 查询多人任务
List<Task> taskList = taskService.createTaskQuery().taskCandidateUser(userId).list();
System.out.println("taskList" + taskList);
//遍历任务列表
for(Task task:taskList){
System.out.println("流程定义id = " + task.getProcessDefinitionId());
System.out.println("流程实例id = " + task.getProcessInstanceId());
System.out.println("任务id = " + task.getId());
System.out.println("任务名称 = " + task.getName());
}
return Result.ok("成功");
} catch (Exception e) {
e.printStackTrace();
return Result.error("失败");
}
}
/**
* 执行流程任务
* @param userId
* @return
*/
@Transactional
public Result MakeTask(String userId){
try {
TaskService taskService = processEngine.getTaskService();
// 查询个人任务
List<Task> list = taskService.createTaskQuery().taskCandidateUser(userId).list();
System.out.println("taskList" + list);
for (Task task : list) {
taskService.complete(task.getId());
System.out.println("task.getId()" + task.getId());
}
return Result.ok("成功");
} catch (Exception e) {
e.printStackTrace();
return Result.error("失败");
}
}
/**
* 查询历史流程
* @param
* @return
*/
@Transactional
public Result TaskHistory(){
try {
HistoryService historyService = processEngine.getHistoryService();
List<HistoricActivityInstance> activities = historyService.createHistoricActivityInstanceQuery()
// .processInstanceId("12501") // 特定的实例
.finished() // 完成的
// .orderByHistoricActivityInstanceEndTime().asc() // 根据实例完成时间升序排列
.list();
for (HistoricActivityInstance activity : activities) {
System.out.println("id:" + activity.getActivityId() + " 任务名：" + activity.getActivityName() + " 类型：" + activity.getActivityType() + " 持续时间:" + activity.getDurationInMillis());
}
return Result.ok("成功");
} catch (Exception e) {
e.printStackTrace();
return Result.error("失败");
}
}
}到此这篇关于Vue+LogicFlow+Flowable实现工作流的文章就介绍到这了,更多相关Vue 工作流内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家！