1. 首先配置好pom文件:

<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.activiti</groupId>
            <artifactId>activiti-spring-boot-starter-basic</artifactId>
            <version>5.21.0</version>
        </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>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

1. 配置property文件

##############################################################################
#########datasource
##############################################################################
spring.datasource.url=jdbc:mysql://localhost:3306/spring-boot-activiti?characterEncoding=utf8&useSSL=true
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
#自动创建、更新、验证数据库表结构
spring.jpa.properties.hibernate.hbm2ddl.auto=update
spring.jpa.show-sql=true
spring.activiti.check-process-definitions=false
server.port=8080

1. 启动后发现数据库建立了,就说明配置成功了

参考文章

activiti 集成spring boot

activi表的含义