Elastic-Job系列（二）---- SpringBoot整合 示例SimpleJob

1、pom文件中添加jar包依赖

	<!--分布式调度定时任务相关-->
	<dependency>
		<groupId>com.dangdang</groupId>
		<artifactId>elastic-job-lite-core</artifactId>
		<version>2.1.5</version>
	</dependency>
	<dependency>
		<groupId>com.dangdang</groupId>
		<artifactId>elastic-job-lite-spring</artifactId>
		<version>2.1.5</version>
	</dependency>
	<!--分布式调度定时任务相关-->

2、修改application.properties

# 分布式调度定时任务相关
regCenter.serverList=192.168.164.101:2181,192.168.164.102:2181,192.168.164.103:2181
regCenter.namespace=springboot-demo

3、 elastic-job 的zookeeper注册中心配置

@Configuration
@ConditionalOnExpression("'${regCenter.serverList}'.length() > 0")
public class ElasticJobRegistryCenterConfig {

    @Bean(initMethod = "init")
    public ZookeeperRegistryCenter regCenter(@Value("${regCenter.serverList}") final String serverList,
                                             @Value("${regCenter.namespace}") final String namespace) {
        return new ZookeeperRegistryCenter(new ZookeeperConfiguration(serverList, namespace));
    }

}

4、定义两个示例定时任务

public class TestAJob implements SimpleJob {

    private static final Logger logger = LoggerFactory.getLogger(TestAJob.class);

    @Override
    public void execute(ShardingContext shardingContext) {
        logger.info("TestAJob------------------");
    }


    private String cron = "0 0 0 * * ?"; // 0点执行
    private String jobParameters = "";
    private String description = "TestAJob的描述信息";

    public String getCron() {
        return cron;
    }

    public String getJobParameters() {
        return jobParameters;
    }

    public String getDescription() {
        return description;
    }
}

public class TestBJob implements SimpleJob{

    private static final Logger logger = LoggerFactory.getLogger(TestBJob.class);

    @Override
    public void execute(ShardingContext shardingContext) {
        logger.info("TestBJob..................");
    }


    private String cron = "0 0 0 * * ?"; // 0点执行
    private String jobParameters = "";
    private String description = "TestBJob的描述信息";

    public String getCron() {
        return cron;
    }

    public String getJobParameters() {
        return jobParameters;
    }

    public String getDescription() {
        return description;
    }
}

5、配置任务

配置任务的时候，这里定义了五个参数，分别是：

• cron：cron表达式，用于控制作业触发时间。
• shardingTotalCount：作业分片总数
• shardingItemParameters：分片序列号和参数用等号分隔，多个键值对用逗号分隔，分片序列号从0开始，不可大于或等于作业分片总数。如：0=a,1=b,2=c
• jobParameters：作业自定义参数
• description：作业描述

/**
 * @author jushisi
 * @description 配置任务
 */
@Configuration
public class JobConfig {

//    private final int shardingTotalCount = 3;
//    private final String shardingItemParameters = "0=A,1=B,2=C";
    private final int shardingTotalCount = 1;
    private final String shardingItemParameters = "";

    @Resource
    private ZookeeperRegistryCenter regCenter;

    @Bean
    public TestAJob testAJob() {
        return new TestAJob();
    }

    @Bean(initMethod = "init")
    public SpringJobScheduler simpleJobScheduler(final TestAJob testAJob) {
        LiteJobConfiguration liteJobConfig = getLiteJobConfiguration(testAJob.getClass(), testAJob.getCron(), testAJob.getJobParameters(), testAJob.getDescription());
        return new SpringJobScheduler(testAJob, regCenter, liteJobConfig);
    }


    @Bean
    public TestBJob testBJob() {
        return new TestBJob();
    }

    @Bean(initMethod = "init")
    public SpringJobScheduler mySimpleJobScheduler(final TestBJob testBJob) {
        LiteJobConfiguration liteJobConfig = getLiteJobConfiguration(testBJob.getClass(), testBJob.getCron(), testBJob.getJobParameters(), testBJob.getDescription());
        return new SpringJobScheduler(testBJob, regCenter, liteJobConfig);
    }

    /**
     * @description 构建作业配置
     * @author jushisi
     */
    private LiteJobConfiguration getLiteJobConfiguration(final Class<? extends SimpleJob> jobClass,
                                                         final String cron,
                                                         final String jobParameters,
                                                         final String description) {
        // 定义作业核心配置
        String jobName = jobClass.getName();
        JobCoreConfiguration coreConfig =
                JobCoreConfiguration.newBuilder(jobName, cron, shardingTotalCount)
                        .shardingItemParameters(shardingItemParameters)
                        .description(description)
                        .jobParameter(jobParameters)
                        .build();
        // 定义SIMPLE类型配置
        SimpleJobConfiguration simpleJobConfig = new SimpleJobConfiguration(coreConfig, jobClass.getCanonicalName());
        // 定义Lite作业根配置
        LiteJobConfiguration simpleJobRootConfig = LiteJobConfiguration.newBuilder(simpleJobConfig).overwrite(true).build();
        return simpleJobRootConfig;
    }

}

运行示例：

Elastic-Job编译部署运维平台 Console的用法参考：https://blog.youkuaiyun.com/jushisi/article/details/109319385