Activiti7發布正式版之后，它與SpringBoot2.x已經完全支持整合開發。我們可以將Activiti7與SpringBoot整合開發的坐標引入到工程中，從而達到SpringBoot支持Activti7整合。
1.使用IDEA創建SpringBoot項目
在工程的pom.xml文件中引入相關的依賴，具體依賴如下所示
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.1.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>activiti</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>activiti</name>
<description>Demo project for Spring Boot</description>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<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>org.activiti</groupId>
<artifactId>activiti-spring-boot-starter</artifactId>
<version>7.0.0.Beta2</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.5</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.27</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
2.application.yml文件配置
為了能夠實現Activiti7生成的表放到Mysql數據庫中，需要在配置文件application.yml中添加相關的配置
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： 默認值。activiti在啟動時，會對比數據庫表中保存的版本，如果沒有表或者版本不匹配，將拋出異常
#2.true： activiti會對數據庫中所有表進行更新操作。如果表不存在，則自動創建
#3.create_drop： 在activiti啟動時創建表，在關閉時刪除表（必須手動關閉引擎，才能刪除表）
#4.drop-create： 在activiti啟動時刪除原來的舊表，然后在創建新表（不需要手動關閉引擎）
database-schema-update: true
#檢測歷史表是否存在
db-history-used: true
#記錄歷史等級 可配置的歷史級別有none, activity, audit, full
history-level: full
#校驗流程文件，默認校驗resources下的processes文件夾里的流程文件
check-process-definitions: false
3.添加SpringSecurity安全框架整合配置
Activiti7與SpringBoot整合后，默認情況下，集成了SpringSecurity安全框架，這樣我們就要去準備SpringSecurity整合進來的相關用戶權限配置信息
1）添加SecurityUtil類
為了能夠快速實現SpringSecurity安全框架的配置，所添加的一個組件。
@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<? extends GrantedAuthority> 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);
}
}
這個類可以從Activiti7官方提供的Example中找到。
2）添加DemoApplicationConfig類
它的作用是為了實現SpringSecurity框架的用戶權限的配置，這樣我們就可以在系統中使用用戶權限信息
@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<String> 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）創建測試類
@SpringBootTest
@Slf4j
class ActivitiApplicationTests {
@Autowired
private ProcessEngine processEngine;
/**
* 流程定義的部署
*/
@Test
public void createDeploy() {
RepositoryService repositoryService = processEngine.getRepositoryService();
Deployment deployment = repositoryService.createDeployment()
.addClasspathResource("diagram/holiday.bpmn")//添加bpmn資源
.addClasspathResource("diagram/holiday.png")
.name("請假申請單流程")
.deploy();
log.info("流程部署id:" + deployment.getName());
log.info("流程部署名稱:" + deployment.getId());
}
}
運行結果：
遇到的問題：
1）歷史表默認不會生成，需在application.yml中配置
spring:
activiti:
#檢測歷史表是否存在
db-history-used: true
#記錄歷史等級 可配置的歷史級別有none, activity, audit, full
history-level: full
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持腳本之家。
