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

  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: 8085spring: 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。

@Componentpublic 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

@Configurationpublic 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@Slf4jclass 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，欢迎关注行业资讯频道。