Vue+LogicFlow+Flowable 前端+后端实现工作流
王八八。 2024-07-21 15:33:01 阅读 60
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<code>xmlns:flowable="http://flowable.org/bpmn"code>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">code>
<bpmn:process isExecutable="true" id="Process_2a9c067_6">code>
<bpmn:startEvent id="Event_14efe0e" name="开始节点" flowable:candidateUsers="admin,admin1,admin2">code>
<bpmn:outgoing>Flow_a3e7d0c</bpmn:outgoing>
</bpmn:startEvent>
<bpmn:userTask id="Activity_602107f" name="普通节点" flowable:candidateUsers="uesr,uesr1,uesr2">code>
<bpmn:incoming>Flow_a3e7d0c</bpmn:incoming>
<bpmn:outgoing>Flow_3f9a386</bpmn:outgoing>
</bpmn:userTask>
<bpmn:endEvent id="Event_49a11b4" name="结束节点">code>
<bpmn:incoming>Flow_3f9a386</bpmn:incoming>
</bpmn:endEvent>
<bpmn:sequenceFlow id="Flow_a3e7d0c" sourceRef="Event_14efe0e" targetRef="Activity_602107f"/>code>
<bpmn:sequenceFlow id="Flow_3f9a386" sourceRef="Activity_602107f" targetRef="Event_49a11b4"/>code>
</bpmn:process>
<bpmndi:BPMNDiagram id="BPMNDiagram_1">code>
<bpmndi:BPMNPlane id="BPMNPlane_1" bpmnElement="Process_2a9c067">code>
<bpmndi:BPMNEdge id="Flow_a3e7d0c_di" bpmnElement="Flow_a3e7d0c">code>
<di:waypoint x="343" y="164"/>code>
<di:waypoint x="448" y="164"/>code>
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge id="Flow_3f9a386_di" bpmnElement="Flow_3f9a386">code>
<di:waypoint x="548" y="164"/>code>
<di:waypoint x="665" y="164"/>code>
</bpmndi:BPMNEdge>
<bpmndi:BPMNShape id="Event_14efe0e_di" bpmnElement="Event_14efe0e">code>
<dc:Bounds x="305" y="144" width="40" height="40"/>code>
<bpmndi:BPMNLabel>
<dc:Bounds x="305" y="197" width="40" height="14"/>code>
</bpmndi:BPMNLabel>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape id="Activity_602107f_di" bpmnElement="Activity_602107f">code>
<dc:Bounds x="448" y="124" width="100" height="80"/>code>
<bpmndi:BPMNLabel>
<dc:Bounds x="478" y="157" width="40" height="14"/>code>
</bpmndi:BPMNLabel>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape id="Event_49a11b4_di" bpmnElement="Event_49a11b4">code>
<dc:Bounds x="663" y="144" width="40" height="40"/>code>
<bpmndi:BPMNLabel>
<dc:Bounds x="663" y="197" width="40" height="14"/>code>
</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>code>
<BpmnNodePanel :lf="lf"></BpmnNodePanel>code>
<div class="node-item">code>
<div class="node-item-icon bpmn-save" @click="saveNode()"></div>code>
<span class="node-label">保存</span>code>
<div class="node-item-icon bpmn-save" @click="cleanNode()"></div>code>
<span class="node-label">清空</span>code>
<div class="node-item-icon bpmn-save" @click="reloadNode()"></div>code>
<span class="node-label">加载</span>code>
<div class="node-item-icon bpmn-save" @click="deleteNode()"></div>code>
<span class="node-label">删除</span>code>
<div class="node-item-icon bpmn-save" @click="getList()"></div>code>
<span class="node-label">获取定义流程</span>code>
<div class="node-item-icon bpmn-save" @click="flowRun()"></div>code>
<span class="node-label">工作流实例</span>code>
</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">code>
<!-- <div class="node-item" @mousedown="openSelection()">code>
<div class="node-item-icon bpmn-selection"></div>code>
<span class="node-label">选区</span>code>
</div> -->
<div class="node-item" @mousedown="addStartNode()">code>
<div class="node-item-icon bpmn-start"></div>code>
<span class="node-label">开始节点</span>code>
</div>
<div class="node-item" @mousedown="addUserTask()">code>
<div class="node-item-icon bpmn-user"></div>code>
<span class="node-label">普通节点</span>code>
</div>
<!-- <div class="node-item" @mousedown="addServiceTask()">code>
<div class="node-item-icon bpmn-service"></div>code>
<span class="node-label">系统</span>code>
</div> -->
<!-- <div class="node-item" @mousedown="addGateWay()">code>
<div class="node-item-icon bpmn-gateway"></div>code>
<span class="node-label">判断</span>code>
</div> -->
<div class="node-item" @mousedown="addEndNode()">code>
<div class="node-item-icon bpmn-end"></div>code>
<span class="node-label">结束节点</span>code>
</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,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)
center center no-repeat;
cursor: grab;
}
.bpmn-end {
background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAAH6ji2bAAAABGdBTUEAALGPC/xhBQAAA1BJREFUOBFtVE1IVUEYPXOf+tq40Y3vPcmFIdSjIorWoRG0ERWUgnb5FwVhYQSl72oUoZAboxKNFtWiwKRN0M+jpfSzqJAQclHo001tKkjl3emc8V69igP3znzfnO/M9zcDcKT67azmjYWTwl9Vn7Vumeqzj1DVb6cleQY4oAVnIOPb+mKAGxQmKI5CWNJ2aLPatxWa3aB9K7/fB+/Z0jUF6TmMlFLQqrkECWQzOZxYGjTlOl8eeKaIY5yHnFn486xBustDjWT6dG7pmjHOJd+33t0iitTPkK6tEvjxq4h2MozQ6WFSX/LkDUGfFwfhEZj1Auz/U4pyAi5Sznd7uKzznXeVHlI/Aywmk6j7fsUsEuCGADrWARXXwjxWQsUbIupDHJI7kF5dRktg0eN81IbiZXiTESic50iwS+t1oJgL83jAiBupLDCQqwziaWSoAFSeIR3P5Xv5az00wyIn35QRYTwdSYbz8pH8fxUUAtxnFvYmEmgI0wYXUXcCCSpeEVpXlsRhBnCEATxWylL9+EKCAYhe1NGstUa6356kS9NVvt3DU2fd+Wtbm/+lSbylJqsqkSm9CRhvoJVlvKPvF1RKY/FcPn5j4UfIMLn8D4UYb54BNsilTDXKnF4CfTobA0FpoW/LSp306wkXM+XaOJhZaFkcNM82ASNAWMrhrUbRfmyeI1FvRBTpN06WKxa9BK0o2E4Pd3zfBBEwPsv9sQBnmLVbLEIZ/Xe9LYwJu/Er17W6HYVBc7vmuk0xUQ+pqxdom5Fnp55SiytXLPYoMXNM4u4SNSCFWnrVIzKG3EGyMXo6n/BQOe+bX3FClY4PwydVhthOZ9NnS+ntiLh0fxtlUJHAuGaFoVmttpVMeum0p3WEXbcll94l1wM/gZ0Ccczop77VvN2I7TlsZCsuXf1WHvWEhjO8DPtyOVg2/mvK9QqboEth+7pD6NUQC1HN/TwvydGBARi9MZSzLE4b8Ru3XhX2PBxf8E1er2A6516o0w4sIA+lwURhAON82Kwe2iDAC1Watq4XHaGQ7skLcFOtI5lDxuM2gZe6WFIotPAhbaeYlU4to5cuarF1QrcZ/lwrLaCJl66JBocYZnrNlvm2+MBCTmUymPrYZVbjdlr/BxlMjmNmNI3SAAAAAElFTkSuQmCC)
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,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)
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code>
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");
}
}
}
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