当Springboot遇到了动态加载jar包，当任务插件化遇到了XXL-JOB调度框架，强强联手铸造任务管理新传奇

后端

2024-01-25 17:04:14

服务中多任务插件化的重要性

灵活的管理

多任务插件化使您能够轻松地添加、删除或更新任务，而无需重新启动整个服务。这使您可以根据需要快速适应变化。

可伸缩性

插件化架构允许您根据需求扩展或缩减任务。这有助于提高服务的可用性和可靠性。

高可用性

在故障情况下，插件化使您可以快速替换有问题的任务，而不影响其他任务的正常运行。

代码解耦

任务与服务中心之间实现解耦，提高了服务的可维护性和可测试性。

SpringBoot动态加载jar包

依赖引入

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.6.6</version>
    <type>pom</type>
</dependency>

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>

实体类

@Entity
@Table(name = "tasks")
public class Task {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    private String name;

    private String description;

    // ... other fields
}

仓库接口

public interface TaskRepository extends CrudRepository<Task, Long> {
}

服务类

@Service
public class TaskService {

    private final TaskRepository taskRepository;

    public TaskService(TaskRepository taskRepository) {
        this.taskRepository = taskRepository;
    }

    // ... service methods
}

控制器

@RestController
@RequestMapping("/api/tasks")
public class TaskController {

    private final TaskService taskService;

    public TaskController(TaskService taskService) {
        this.taskService = taskService;
    }

    // ... controller methods
}

XXL-JOB任务调度框架

依赖引入

<dependency>
    <groupId>com.xuxueli</groupId>
    <artifactId>xxl-job-core</artifactId>
    <version>2.2.0</version>
</dependency>

<dependency>
    <groupId>com.xuxueli</groupId>
    <artifactId>xxl-job-executor</artifactId>
    <version>2.2.0</version>
</dependency>

配置文件

xxl.job.admin.addresses=http://localhost:9333/xxl-job-admin
xxl.job.executor.appname=springboot-task-management
xxl.job.executor.ip=127.0.0.1
xxl.job.executor.port=9999
xxl.job.executor.logpath=/data/logs/xxl-job/executor

任务类

@JobHandler(value = "demoJob")
public class DemoJob implements XxlJob {

    @Override
    public ReturnT<String> execute(JobExecutionContext context) throws Exception {
        System.out.println("Executing demo job...");
        return ReturnT.SUCCESS;
    }
}

注册任务

@Bean
public JobRegistry jobRegistry() {
    JobRegistry jobRegistry = new JobRegistry();
    jobRegistry.addJob("demoJob", new DemoJob());
    return jobRegistry;
}