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第5篇：Flowable-Modeler详述之开发环境搭建

發布時間：2024/9/27 编程问答 23 豆豆

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接上一篇：
第4篇：Flowable-Modeler詳述之流程概述
https://blog.csdn.net/weixin_40816738/article/details/102886712

文章目錄

一、環境搭建
- 1. 下載/安裝jdk
- 2. 安裝mysql 5.7
- 3. 安裝idea
- 4. 配置maven
- - 4.1. 配置maven倉庫
  - 4.2. mirrors中添加阿里服務器
  - 4.3. 在idea中配置maven
- 5. 新建maven工程
- 6. 新建子工程
二、依賴引入
- 2.1. 父工程maven依賴
- 2.2. 子工程Maven依賴
三、案例演練
- 3.1. 添加一個controller用來測試流程是否啟動成功
- 3.2. 新建接口
- 3.3. 新建邏輯處理類
- 3.4. 增加啟動類和包掃描
- 3.5. 配置yml文件
- 3.6. 創建一個mysql數據庫
- 3.7. 啟動服務
- 3.8. mysql中的表總覽
- 3.9. 測試查看創建結果
- 3.10 . 查看流程在表中的內容

前言：

Flowable的modeler的環境已經搭建完成，并且可以繪制modeler模型了，我們繪制一個簡>單的流程只有開始和結束的流程節點。

加入啟動類，自動引入相關的使用的包。

一、環境搭建

1. 下載/安裝jdk

-建議使用jdk 8

JDK環境變量配置_windows
https://blog.csdn.net/weixin_40816738/article/details/102893885

2. 安裝mysql 5.7

win10 下安裝、配置、啟動mysql
https://blog.csdn.net/weixin_40816738/article/details/90112245

3. 安裝idea

官網地址：https://www.jetbrains.com/idea/download/

IntelliJ IDEA 2019 下載安裝
https://blog.csdn.net/weixin_40816738/article/details/90209326

4. 配置maven

4.1. 配置maven倉庫

maven的配置 conf/settings.xml配置添加本地倉庫如下：

4.2. mirrors中添加阿里服務器

<mirror><id>alimaven</id><name>aliyun maven</name><url>http://maven.aliyun.com/nexus/content/groups/public/</url><mirrorOf>central</mirrorOf></mirror>

4.3. 在idea中配置maven

點擊File->Settings按如下操作

5. 新建maven工程

【File】-【New Project】-,工程名為 flowablestudy

6. 新建子工程

添加一個模塊作為工程的一個子模塊，在工程上點擊右鍵，New->Module,配置模塊如下：

二、依賴引入

2.1. 父工程maven依賴

pom中配置springboot的pom文件

<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>com.gblfy</groupId><artifactId>flowablestudy</artifactId><packaging>pom</packaging><version>1.0-SNAPSHOT</version><modules><module>flowablelech5</module></modules><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.1.1.RELEASE</version></parent><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding><java.version>1.8</java.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-devtools</artifactId><optional>true</optional></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-aop</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter</artifactId><version>1.3.2</version></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>8.0.13</version></dependency><dependency><groupId>org.flowable</groupId><artifactId>flowable-spring-boot-starter</artifactId><version>6.4.1</version></dependency><dependency><groupId>org.apache.commons</groupId><artifactId>commons-lang3</artifactId><version>3.4</version></dependency><dependency><groupId>org.apache.commons</groupId><artifactId>commons-collections4</artifactId><version>4.2</version></dependency><dependency><groupId>commons-io</groupId><artifactId>commons-io</artifactId><version>2.5</version></dependency><dependency><groupId>commons-fileupload</groupId><artifactId>commons-fileupload</artifactId><version>1.3.3</version></dependency></dependencies> </project>

2.2. 子工程Maven依賴

三、案例演練

3.1. 添加一個controller用來測試流程是否啟動成功

package com.gblfy.controller;import com.gblfy.service.IFlowService; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody;import java.util.HashMap; import java.util.Map;/*** @author gblfy* @ClassNme FlowController* @Description TODO* @Date 2019/11/4 13:58* @version1.0*/ @Controller @RequestMapping(value = "flow") public class FlowController {/*** 日志類*/private static final Logger log = LoggerFactory.getLogger(FlowController.class);/*** 流程處理服務*/@Autowiredprivate IFlowService flowService;@RequestMapping("/create")@ResponseBodypublic Map<String,String> createFlow(){Map<String,String> res =new HashMap<>();// String flowPath ="E:\\flowablestudy\\flowablech5\\src\\main\\resources\\flows\\測試BPMN模型.bpmn20.xml";String flowPath ="C:\\Users\\gblfy\\Desktop\\Workflow\\flowablestudy\\flowablelech5\\src\\main\\resources\\processes\\測試BPMN模型.bpmn20.xml";if (null == flowService.createFlow(flowPath)){res.put("msg","創建流程失敗");res.put("res","0");return res;}res.put("msg","創建流程成功");res.put("res","1");return res;} }

3.2. 新建接口

添加service查看提供流程的一些服務，本次只有一個啟動流程的服務
IFlowService

package com.gblfy.service;import org.flowable.engine.repository.Deployment;/*** 流程服務類*/ public interface IFlowService {/*** 部署工作流*/Deployment createFlow(String filePath); }

3.3. 新建邏輯處理類

FlowServiceImpl

package com.gblfy.service.impl;import com.gblfy.service.IFlowService; import org.flowable.bpmn.converter.BpmnXMLConverter; import org.flowable.bpmn.model.BpmnModel; import org.flowable.bpmn.model.Process; import org.flowable.engine.RepositoryService; import org.flowable.engine.repository.Deployment; import org.flowable.engine.repository.DeploymentBuilder; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Primary; import org.springframework.stereotype.Service; import org.springframework.util.CollectionUtils;import javax.xml.stream.XMLInputFactory; import javax.xml.stream.XMLStreamException; import javax.xml.stream.XMLStreamReader; import java.io.File; import java.io.FileInputStream; import java.io.InputStream; import java.util.List;/*** @author gblfy* @ClassNme IFlowServiceImpl* @Description TODO* @Date 2019/11/4 14:01* @version1.0*/ @Primary @Service public class FlowServiceImpl implements IFlowService {/*** 日志類*/private static final Logger log = LoggerFactory.getLogger(FlowServiceImpl.class);/*** Flowable運行時服務*/@Autowiredprivate RepositoryService repositoryService;@Overridepublic Deployment createFlow(String filePath) {//解析BPMN模型看是否成功XMLStreamReader reader = null;InputStream inputStream = null;try {BpmnXMLConverter bpmnXMLConverter = new BpmnXMLConverter();XMLInputFactory factory = XMLInputFactory.newInstance();inputStream=new FileInputStream(new File(filePath));reader = factory.createXMLStreamReader(inputStream);BpmnModel model = bpmnXMLConverter.convertToBpmnModel(reader);List<Process> processes = model.getProcesses();Process curProcess = null;if (CollectionUtils.isEmpty(processes)) {log.error("BPMN模型沒有配置流程");return null;}curProcess = processes.get(0);inputStream=new FileInputStream(new File(filePath));DeploymentBuilder deploymentBuilder = repositoryService.createDeployment().name("TEST_FLOW").addInputStream(curProcess.getName(),inputStream);Deployment deployment= deploymentBuilder.deploy();log.warn("部署流程 name:"+curProcess.getName() + " "+deployment);return deployment;}catch (Exception e){log.error("BPMN模型創建流程異常",e);return null;}finally {try {reader.close();} catch (XMLStreamException e) {log.error("關閉異常",e);}}} }

3.4. 增加啟動類和包掃描

package com.gblfy;import org.mybatis.spring.annotation.MapperScan; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.annotation.ComponentScan;/*** @author gblfy* @ClassNme FlowableApplication* @Description TODO* @Date 2019/11/4 14:07* @version1.0*/ //掃描Service @ComponentScan(basePackages = { "com.gblfy.**" }) //掃描Mapper @MapperScan(basePackages = {"com.gblfy.**"}) @SpringBootApplication public class FlowableApplication {private final static Logger logger = LoggerFactory.getLogger(FlowableApplication.class);public static void main(String[] args){logger.info("開始啟動服務 ");SpringApplication.run(FlowableApplication.class,args);logger.info("完成啟動服務 ");} }

3.5. 配置yml文件

server:port: 8989tomcat:# tomcat的URI編碼uri-encoding: UTF-8# tomcat最大線程數，默認為200max-threads: 200# Tomcat啟動初始化的線程數，默認值25min-spare-threads: 30mybatis:mapper-locations: classpath:mapper/*.xmltype-aliases-package: com.gblfy # 注意：對應實體類的路徑# 數據源配置 spring:datasource:driverClassName: com.mysql.cj.jdbc.Driverurl: jdbc:mysql://127.0.0.1:3306/flowstudy?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=utf8&autoReconnect=true&&zeroDateTimeBehavior=convertToNull&useSSL=true&allowMulQueries=true&&nullCatalogMeansCurrent=trueusername: rootpassword: root

3.6. 創建一個mysql數據庫

flowstudy,設置編碼為UTF-8

CREATE DATABASE /*!32312 IF NOT EXISTS*/`flowstudy` /*!40100 DEFAULT CHARACTER SET utf8 */;

3.7. 啟動服務

啟動的時候會自動創建我們需要的表，如果另外一個activity的示例安裝過數據庫，注意配置上面的啟動項的參數，設置nullCatalogMeansCurrent=true，啟動建表打印如下:

3.8. mysql中的表總覽

3.9. 測試查看創建結果

3.10 . 查看流程在表中的內容

部署ID表 act_re_deployment
部署內容表：act_ge_bytearray

源碼地址：
Gitlab鏈接：
https://gitlab.com/gb-heima/flowablestudy/tree/master/flowablelech5
碼云地址：https://gitee.com/gb_90/flowable-study/tree/master/flowablelech5

下一篇：
第6篇：Flowable-Modeler詳述之常見問題Table act_ge_property doesn’t exist
https://blog.csdn.net/weixin_40816738/article/details/102899408

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