springbatch自学之路-06（split的创建与使用-使用多线程执行任务）

刺骨的言语ヽ痛彻心扉 2023-02-13 11:35 90阅读 0赞

1.配置类

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;
    
    /**
     * 任务配置器
     *
     * @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 {
    
        //创建 创建job的对象
        @Autowired
        private JobBuilderFactory jobBuilderFactory;
    
        //创建 创建step的对象
        @Autowired
        private StepBuilderFactory stepBuilderFactory;
    
        /**
         * @param
         * @throws
         * @Title: <p>newJob</p>
         * @Description: <p>可以多线程执行</p>
         * @return: org.springframework.batch.core.Job
         * @author: 
         * @Date: 2020/5/28 21:28
         * @version: 1.0
         * @Copyright: . 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.启动类

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项目启动类
     *
     * @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.执行结果

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTIwNDUwNDU_size_16_color_FFFFFF_t_70][]

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