SpringBoot整合Activiti7

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:
1.jpg

2.jpg

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

你可能感兴趣的:(activiti,springboot,工作流)