Springboot2.1.5整合activiti项目

1、首先创建一个2.1.5的springboot项目

2、修改pom.xml文件，加入maven-jar-plugin.version属性，加入mysql、druid、mybatis、activiti的依赖

<?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.example</groupId>
	<artifactId>spring-web</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>jar</packaging>

	<name>spring-web</name>
	<description>Demo project for Spring Boot</description>

	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.1.5.RELEASE</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>

	<properties>
		<java.version>1.8</java.version>
		<maven-jar-plugin.version>3.1.1</maven-jar-plugin.version>
	</properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			</dependency>
		<dependency>
			<groupId>org.activiti</groupId>
			<artifactId>activiti-spring-boot-starter-basic</artifactId>
			<version>6.0.0</version>
		</dependency>
		<dependency>
			<groupId>org.mybatis.spring.boot</groupId>
			<artifactId>mybatis-spring-boot-starter</artifactId>
			<version>2.0.1</version>
		</dependency>
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>druid-spring-boot-starter</artifactId>
			<version>1.1.9</version>
		</dependency>
	</dependencies>


	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>


</project>

3、修改application.yml文件

server:
  port: 8000
spring: 
  activiti:
    check-process-definitions: false
    database-schema-update: true
    
  jpa:
    database: MYSQL
    generate-ddl: true
    show-sql: true
 
 
  datasource:
    password: 123456
    username: root
    url: jdbc:mysql://192.168.31.12:3306/test?useUnicode=true&characterEncoding=utf8&allowMultiQueries=true&zeroDateTimeBehavior=convertToNull
    driver-class-name: com.mysql.cj.jdbc.Driver
    type: com.alibaba.druid.pool.DruidDataSource
    druid: 
      validation-query: select '*'
      initial-size: 3
      max-active: 20
      max-wait: 1000
      filters: stat
      #检测连接是否有效，默认为60*1000L,通过timeBetweenEvictionRunsMillis设置
      test-while-idle: true
      #设置检测时间为5分钟
      time-between-eviction-runs-millis: 300000
      pool-prepared-statements: false    

4、修改启动文件

package com.example.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication(exclude = {org.activiti.spring.boot.SecurityAutoConfiguration.class})
public class SpringWebApplication {

	public static void main(String[] args) {
		SpringApplication.run(SpringWebApplication.class, args);
	}
}

5、如果程序运行时发生类找不到的异常，请首先检查相关的依赖。我这是将下载的Jar删除后，重新更新项目后才能正常使用的。