SpringBoot整合Activiti7的实现

这期内容当中小编将会给大家带来有关SpringBoot整合Activiti7的实现，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。

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

<?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

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<? 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);   } }

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<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）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

上述就是小编为大家分享的SpringBoot整合Activiti7的实现了，如果刚好有类似的疑惑，不妨参照上述分析进行理解。如果想知道更多相关知识，欢迎关注亿速云行业资讯频道。