先明确以下对象

RepositoryService ：操作流程定义
RuntimeService ：操作流程实例
TaskService ：操作任务
IdentityService ：操作用户或者组
HistoryService : 查询历史表相关数据
AuthorizationService : 授权相关服务
FormService : 操作流程表单
ManagementService : 执行cmd以及job相关服务
CaseService : CMMN相关操作
FilterService : 过滤相关服务
ExternalTaskService : 外部任务相关服务
DecisionService : DMN相关服务

一创建项目

打开： https://start.camunda.com/

填写如下，最后点击Generate Project按钮

二修改数据库

1 数据库创建Camunda

2 pom文件

只是将H2改为了Mysql

<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.test</groupId>
  <artifactId>springboottest</artifactId>
  <version>1.0</version>
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>11</maven.compiler.source>
    <maven.compiler.target>11</maven.compiler.target>
  </properties>
  <dependencyManagement>
    <dependencies>
      <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-dependencies</artifactId>
        <version>2.6.4</version>
        <type>pom</type>
        <scope>import</scope>
      </dependency>
      <dependency>
        <groupId>org.camunda.bpm</groupId>
        <artifactId>camunda-bom</artifactId>
        <version>7.17.0</version>
        <scope>import</scope>
        <type>pom</type>
      </dependency>
    </dependencies>
  </dependencyManagement>
  <dependencies>
    <dependency>
      <groupId>org.camunda.bpm.springboot</groupId>
      <artifactId>camunda-bpm-spring-boot-starter-rest</artifactId>
    </dependency>
    <dependency>
      <groupId>org.camunda.bpm.springboot</groupId>
      <artifactId>camunda-bpm-spring-boot-starter-webapp</artifactId>
    </dependency>
    <dependency>
      <groupId>org.camunda.bpm</groupId>
      <artifactId>camunda-engine-plugin-spin</artifactId>
    </dependency>
    <dependency>
      <groupId>org.camunda.spin</groupId>
      <artifactId>camunda-spin-dataformat-all</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-jdbc</artifactId>
    </dependency>
  </dependencies>
  <build>
    <plugins>
      <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
        <version>2.6.4</version>
      </plugin>
    </plugins>
  </build>
</project>

三 application.yml

server: port: 8100 spring: application: name: spring-boot-test jackson: #设置返回前端的参数为驼峰的转换形式 # property-naming-strategy: SNAKE_CASE #日期格式化 date-format: yyyy-MM-dd HH:mm:ss time-zone: GMT+8 # 设置序列化，否则部署时报错（No serializer found for class） serialization: fail-on-empty-beans: false #数据源配置 datasource: url: jdbc:mysql://127.0.0.1:3306/camunda?useUnicode=true&characterEncoding=utf-8&autoReconnect=true&autoReconnectForPools=true&noAccessToProcedureBodies=true&testOnBorrow=true&validationQuery=select 1 driver-class-name: com.mysql.cj.jdbc.Driver username: root password: root camunda: #配置账户密码来访问Camunda自带的管理界面 admin-user: id: demo password: demo first-name: demo filter: create: All tasks #指定数据库类型 database: type: mysql schema-update: true #禁止自动部署resources下面的bpmn文件 auto-deployment-enabled: true #禁止index跳转到Camunda自带的管理界面，默认true # webapp: # index-redirect-enabled: false

四启动运行

浏览器输入 localhost:8100

账号 demo

密码 demo