Activiti7发布正式版之后，它与SpringBoot2.x已经完全支持整合开发。我们可以将Activiti7与SpringBoot整合开发的坐标引入到工程中，从而达到SpringBoot支持Activti7整合。
1.使用IDEA创建SpringBoot项目
在工程的pom.xml文件中引入相关的依赖，具体依赖如下所示
4.0.0
org.springframework.boot
spring-boot-starter-parent
2.2.1.RELEASE
com.example
activiti
0.0.1-SNAPSHOT
activiti
Demo project for Spring Boot
UTF-8
UTF-8
1.8
org.springframework.boot
spring-boot-starter-jdbc
org.springframework.boot
spring-boot-starter-web
org.springframework.boot
spring-boot-starter-test
test
org.activiti
activiti-spring-boot-starter
7.0.0.Beta2
org.mybatis
mybatis
3.4.5
mysql
mysql-connector-java
5.1.27
org.projectlombok
lombok
true
org.springframework.boot
spring-boot-maven-plugin
2.application.yml文件配置
为了能够实现Activiti7生成的表放到Mysql数据库中，需要在配置文件application.yml中添加相关的配置
server:
port: 8085
spring:
application:
name: spring-activiti
datasource:
url: jdbc:mysql://localhost:3306/activiti?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT&nullCatalogMeansCurrent=true
username: root
password: 123456
driver-class-name: com.mysql.jdbc.Driver
activiti:
#1.flase： 默认值。activiti在启动时，会对比数据库表中保存的版本，如果没有表或者版本不匹配，将抛出异常
#2.true： activiti会对数据库中所有表进行更新操作。如果表不存在，则自动创建
#3.create_drop： 在activiti启动时创建表，在关闭时删除表（必须手动关闭引擎，才能删除表）
#4.drop-create： 在activiti启动时删除原来的旧表，然后在创建新表（不需要手动关闭引擎）
database-schema-update: true
#检测历史表是否存在
db-history-used: true
#记录历史等级 可配置的历史级别有none, activity, audit, full
history-level: full
#校验流程文件，默认校验resources下的processes文件夹里的流程文件
check-process-definitions: false
3.添加SpringSecurity安全框架整合配置
Activiti7与SpringBoot整合后，默认情况下，集成了SpringSecurity安全框架，这样我们就要去准备SpringSecurity整合进来的相关用户权限配置信息
1）添加SecurityUtil类
为了能够快速实现SpringSecurity安全框架的配置，所添加的一个组件。
@Component
public class SecurityUtil {
private Logger logger = LoggerFactory.getLogger(SecurityUtil.class);
@Autowired
@Qualifier("myUserDetailsService")
private UserDetailsService userDetailsService;
public void logInAs(String username) {
UserDetails user = userDetailsService.loadUserByUsername(username);
if (user == null) {
throw new IllegalStateException("User " + username + " doesn't exist, please provide a valid user");
}
logger.info("> Logged in as: " + username);
SecurityContextHolder.setContext(new SecurityContextImpl(new Authentication() {
@Override
public Collection getAuthorities() {
return user.getAuthorities();
}
@Override
public Object getCredentials() {
return user.getPassword();
}
@Override
public Object getDetails() {
return user;
}
@Override
public Object getPrincipal() {
return user;
}
@Override
public boolean isAuthenticated() {
return true;
}
@Override
public void setAuthenticated(boolean isAuthenticated) throws IllegalArgumentException {
}
@Override
public String getName() {
return user.getUsername();
}
}));
org.activiti.engine.impl.identity.Authentication.setAuthenticatedUserId(username);
}
}这个类可以从Activiti7官方提供的Example中找到。
2）添加DemoApplicationConfig类
它的作用是为了实现SpringSecurity框架的用户权限的配置，这样我们就可以在系统中使用用户权限信息
@Configuration
public class DemoApplicationConfiguration {
private Logger logger = LoggerFactory.getLogger(DemoApplicationConfiguration.class);
@Bean
public UserDetailsService myUserDetailsService() {
InMemoryUserDetailsManager inMemoryUserDetailsManager = new InMemoryUserDetailsManager();
String[][] usersGroupsAndRoles = {
{"salaboy", "password", "ROLE_ACTIVITI_USER", "GROUP_activitiTeam"},
{"ryandawsonuk", "password", "ROLE_ACTIVITI_USER", "GROUP_activitiTeam"},
{"erdemedeiros", "password", "ROLE_ACTIVITI_USER", "GROUP_activitiTeam"},
{"other", "password", "ROLE_ACTIVITI_USER", "GROUP_otherTeam"},
{"system", "password", "ROLE_ACTIVITI_USER"},
{"admin", "password", "ROLE_ACTIVITI_ADMIN"},
};
for (String[] user : usersGroupsAndRoles) {
List authoritiesStrings = Arrays.asList(Arrays.copyOfRange(user, 2, user.length));
logger.info("> Registering new user: " + user[0] + " with the following Authorities[" + authoritiesStrings + "]");
inMemoryUserDetailsManager.createUser(new User(user[0], passwordEncoder().encode(user[1]),
authoritiesStrings.stream().map(s -> new SimpleGrantedAuthority(s)).collect(Collectors.toList())));
}
return inMemoryUserDetailsManager;
}
@Bean
public PasswordEncoder passwordEncoder() {
return new BCryptPasswordEncoder();
}
} 4）创建测试类
@SpringBootTest
@Slf4j
class ActivitiApplicationTests {
@Autowired
private ProcessEngine processEngine;
/**
* 流程定义的部署
*/
@Test
public void createDeploy() {
RepositoryService repositoryService = processEngine.getRepositoryService();
Deployment deployment = repositoryService.createDeployment()
.addClasspathResource("diagram/holiday.bpmn")//添加bpmn资源
.addClasspathResource("diagram/holiday.png")
.name("请假申请单流程")
.deploy();
log.info("流程部署id:" + deployment.getName());
log.info("流程部署名称:" + deployment.getId());
}
}运行结果：
遇到的问题：
1）历史表默认不会生成，需在application.yml中配置
spring:
activiti:
#检测历史表是否存在
db-history-used: true
#记录历史等级 可配置的历史级别有none, activity, audit, full
history-level: full