springbatch自學之路-06（split的創建與使用-使用多線程執行任務）

1.配置類

package com.springbatch._04new_split;

import org.springframework.batch.core.Job;
import org.springframework.batch.core.Step;
import org.springframework.batch.core.StepContribution;
import org.springframework.batch.core.configuration.annotation.JobBuilderFactory;
import org.springframework.batch.core.configuration.annotation.StepBuilderFactory;
import org.springframework.batch.core.job.builder.FlowBuilder;
import org.springframework.batch.core.job.flow.Flow;
import org.springframework.batch.core.scope.context.ChunkContext;
import org.springframework.batch.core.step.tasklet.Tasklet;
import org.springframework.batch.repeat.RepeatStatus;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.task.SimpleAsyncTaskExecutor;

/**
 * 任務配置器
 *
 * @Package: com.springbatch._01helloworld
 * @ClassName: jobConfig
 * @author: zq
 * @since: 2020/5/22 21:00
 * @version: 1.0
 * @Copyright: 2020 zq. All rights reserved.
 */
@Configuration
public class JobConfig {

    //創建 創建job的對象
    @Autowired
    private JobBuilderFactory jobBuilderFactory;

    //創建 創建step的對象
    @Autowired
    private StepBuilderFactory stepBuilderFactory;

    /**
     * @param
     * @throws
     * @Title: <p>newJob</p>
     * @Description: <p>可以多線程執行</p>
     * @return: org.springframework.batch.core.Job
     * @author: zhangqin
     * @Date: 2020/5/28 21:28
     * @version: 1.0
     * @Copyright: zhangqin. All rights reserved.
     */
    @Bean
    public Job newJob() {

        return jobBuilderFactory.get("newJob")
                .start(flow1())
                .split(new SimpleAsyncTaskExecutor())
                .add(flow2()).end()
                .build();

    }

    @Bean
    public Step step3() {
        return stepBuilderFactory.get("step003")
                .tasklet(new Tasklet() {
                    @Override
                    public RepeatStatus execute(StepContribution stepContribution, ChunkContext chunkContext) throws Exception {
                        System.out.println(Thread.currentThread() + " step003");

                        return RepeatStatus.FINISHED;
                    }
                }).build();
    }

    @Bean
    public Step step4() {
        return stepBuilderFactory.get("step004")
                .tasklet(new Tasklet() {
                    @Override
                    public RepeatStatus execute(StepContribution stepContribution, ChunkContext chunkContext) throws Exception {
                        System.out.println(Thread.currentThread() + " step004");
                        return RepeatStatus.FINISHED;
                    }
                }).build();
    }

    @Bean
    public Step step2() {
        return stepBuilderFactory.get("step002")
                .tasklet(new Tasklet() {
                    @Override
                    public RepeatStatus execute(StepContribution stepContribution, ChunkContext chunkContext) throws Exception {
                        System.out.println(Thread.currentThread() + " step002");
                        return RepeatStatus.FINISHED;
                    }
                }).build();
    }

    @Bean
    public Step step1() {

        return stepBuilderFactory.get("step001")
                .tasklet(new Tasklet() {
                    @Override
                    public RepeatStatus execute(StepContribution stepContribution, ChunkContext chunkContext) throws Exception {
                        System.out.println(Thread.currentThread() + " step001");
                        return RepeatStatus.FINISHED;
                    }
                }).build();

    }

    @Bean
    public Flow flow1() {

        return new FlowBuilder<Flow>("flow001")
                .start(step1())
                .next(step2())
                .next(step3())
                .build();

    }

    @Bean
    public Flow flow2() {

        return new FlowBuilder<Flow>("flow002")
                .start(step4())
                .build();

    }

}

2.啓動類

package com.springbatch._04new_split;

import org.springframework.batch.core.configuration.annotation.EnableBatchProcessing;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * SpringBatchDemo項目啓動類
 *
 * @Package: PACKAGE_NAME
 * @ClassName: com.springbatch._01helloworld.SpringBatchConfig
 * @author: zq
 * @since: 2020/5/22 20:31
 * @version: 1.0
 * @Copyright: 2020 zq. All rights reserved.
 */
@SpringBootApplication
@EnableBatchProcessing
public class SpringBatchConfig {

    public static void main(String[] args) {

        SpringApplication.run(SpringBatchConfig.class, args);

    }

}

3.執行結果