SpringBoot2整合Activiti7

步骤一:引入依赖

            <parent>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-parent</artifactId>
                    <version>2.1.4.RELEASE</version>
                </parent>
                <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>

                <!-- https://mvnrepository.com/artifact/org.activiti/activiti-spring-boot-starter -->
                <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>5.1.38</version>
                </dependency>

步骤二：配置文件application.yml

                spring:
                  datasource:
                    url: jdbc:mysql://localhost:3306/activiti?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT
                    username : root
                    password : 123
                    driver-class-name: com.mysql.jdbc.Driver
                  activiti:
                    db-history-used: true

步骤三：将SpringSecurity配置添加到项目当中

1.SecurityUtil.java 关于权限登陆

@Component
public class SecurityUtil {

    @Autowired
    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");
        }

        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);
    }
}

2.DemoApplicationConfiguration 关于权限配置

@Configuration
@EnableWebSecurity
public class DemoApplicationConfiguration extends WebSecurityConfigurerAdapter {

    private Logger logger = LoggerFactory.getLogger(DemoApplicationConfiguration.class);

    @Override
    @Autowired
    public void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(myUserDetailsService());
    }

    @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"},
                {"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;
    }


    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
                .csrf().disable()
                .authorizeRequests()
                .anyRequest()
                .authenticated()
                .and()
                .httpBasic();


    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }
}

步骤四：启动工程

@SpringBootApplication
public class StartActiviti {
    public static void main(String[] args) {
        SpringApplication.run(StartActiviti.class,args);
    }
}

自动部署:

注意问题：
　　1.Activiti7和SpringSecurity耦合，需要加入SpringSecurity的依赖和配置，我们可以使用Security中的用户角色组定义流程执行的组
　　2.流程默认可自动部署，但是需要再resources/processes文件夹，将流程文件放入当中

　　3.默认历史表不会生成，需要手动开启配置

执行流程:

controller

@RestController
@RequestMapping("/activiti")
public class ActivitiController {
    @Resource
    private ProcessRuntime processRuntime;
    @Resource
    private TaskRuntime taskRuntime;
    @Resource
    private SecurityUtil securityUtil;
    /**
     * 查询流程定义
     */
    @RequestMapping("/getProcess")
    public void getProcess(){
        //查询所有流程定义信息
        Page<ProcessDefinition> processDefinitionPage = processRuntime.processDefinitions(Pageable.of(0, 10));
        System.out.println("当前流程定义的数量："+processDefinitionPage.getTotalItems());
        //获取流程信息
        for (ProcessDefinition processDefinition:processDefinitionPage.getContent()) {
            System.out.println("流程定义信息"+processDefinition);
        }
    }

    /**
     * 启动流程示例
     */
    @RequestMapping("/startInstance")
    public void startInstance(){
        ProcessInstance instance = processRuntime.start(ProcessPayloadBuilder.start().withProcessDefinitionKey("demo").build());
        System.out.println(instance.getId());
    }

    /**
     * 获取任务，拾取任务，并且执行
     */
    @RequestMapping("/getTask")
    public void getTask(){
        securityUtil.logInAs("salaboy");        //指定组内任务人
        Page<Task> tasks = taskRuntime.tasks(Pageable.of(0, 10));
        if(tasks.getTotalItems()>0){
            for (Task task:tasks.getContent()) {
                System.out.println("任务名称："+task.getName());
                //拾取任务
                taskRuntime.claim(TaskPayloadBuilder.claim().withTaskId(task.getId()).build());
                //执行任务
                taskRuntime.complete(TaskPayloadBuilder.complete().withTaskId(task.getId()).build());
            }
        }
    }
}

1.查询流程定义

需要先经过权限验证

账号密码在DemoApplicationConfiguration配置类

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"},
                {"admin", "password", "ROLE_ACTIVITI_ADMIN"},
        };