SpringBoot整合Activiti7的实现代码

2023-08-07 12:02:04 72

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
DemoprojectforSpringBoot


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
publicclassSecurityUtil{

privateLoggerlogger=LoggerFactory.getLogger(SecurityUtil.class);

@Autowired
@Qualifier("myUserDetailsService")
privateUserDetailsServiceuserDetailsService;

publicvoidlogInAs(Stringusername){

UserDetailsuser=userDetailsService.loadUserByUsername(username);
if(user==null){
thrownewIllegalStateException("User"+username+"doesn'texist,pleaseprovideavaliduser");
}
logger.info(">Loggedinas:"+username);
SecurityContextHolder.setContext(newSecurityContextImpl(newAuthentication(){
@Override
publicCollectiongetAuthorities(){
returnuser.getAuthorities();
}

@Override
publicObjectgetCredentials(){
returnuser.getPassword();
}

@Override
publicObjectgetDetails(){
returnuser;
}

@Override
publicObjectgetPrincipal(){
returnuser;
}

@Override
publicbooleanisAuthenticated(){
returntrue;
}

@Override
publicvoidsetAuthenticated(booleanisAuthenticated)throwsIllegalArgumentException{

}

@Override
publicStringgetName(){
returnuser.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
publicclassDemoApplicationConfiguration{

privateLoggerlogger=LoggerFactory.getLogger(DemoApplicationConfiguration.class);

@Bean
publicUserDetailsServicemyUserDetailsService(){

InMemoryUserDetailsManagerinMemoryUserDetailsManager=newInMemoryUserDetailsManager();

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){
ListauthoritiesStrings=Arrays.asList(Arrays.copyOfRange(user,2,user.length));
logger.info(">Registeringnewuser:"+user[0]+"withthefollowingAuthorities["+authoritiesStrings+"]");
inMemoryUserDetailsManager.createUser(newUser(user[0],passwordEncoder().encode(user[1]),
authoritiesStrings.stream().map(s->newSimpleGrantedAuthority(s)).collect(Collectors.toList())));
}


returninMemoryUserDetailsManager;
}


@Bean
publicPasswordEncoderpasswordEncoder(){
returnnewBCryptPasswordEncoder();
}

}

4）创建测试类

@SpringBootTest
@Slf4j
classActivitiApplicationTests{

@Autowired
privateProcessEngineprocessEngine;

/**
*流程定义的部署
*/
@Test
publicvoidcreateDeploy(){
RepositoryServicerepositoryService=processEngine.getRepositoryService();

Deploymentdeployment=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

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持毛票票。

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SpringBoot整合Activiti7的实现代码

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