springbatch自学之路-05（flow的创建与使用）

短命女 2023-02-13 11:30 147阅读 0赞

1.配置类

package com.springbatch._03new_flow;
    
    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;
    
    /**
     * 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;
    
        @Bean
        public Job newJob() {
    
            return jobBuilderFactory.get("newJob")
                    .start(flow1())
                    .next(step4()).end()
                    .build();
    
        }
    
        @Bean
        public Step step3() {
            return stepBuilderFactory.get("step03")
                    .tasklet(new Tasklet() {
                        @Override
                        public RepeatStatus execute(StepContribution stepContribution, ChunkContext chunkContext) throws Exception {
                            System.out.println("step03");
                            return RepeatStatus.FINISHED;
                        }
                    }).build();
        }
    
        @Bean
        public Step step4() {
            return stepBuilderFactory.get("step04")
                    .tasklet(new Tasklet() {
                        @Override
                        public RepeatStatus execute(StepContribution stepContribution, ChunkContext chunkContext) throws Exception {
                            System.out.println("step04");
                            return RepeatStatus.FINISHED;
                        }
                    }).build();
        }
    
        @Bean
        public Step step2() {
            return stepBuilderFactory.get("step02")
                    .tasklet(new Tasklet() {
                        @Override
                        public RepeatStatus execute(StepContribution stepContribution, ChunkContext chunkContext) throws Exception {
                            System.out.println("step02");
                            return RepeatStatus.FINISHED;
                        }
                    }).build();
        }
    
        @Bean
        public Step step1() {
    
            return stepBuilderFactory.get("step01")
                    .tasklet(new Tasklet() {
                        @Override
                        public RepeatStatus execute(StepContribution stepContribution, ChunkContext chunkContext) throws Exception {
                            System.out.println("step01");
                            return RepeatStatus.FINISHED;
                        }
                    }).build();
    
        }
    
        @Bean
        public Flow flow1() {
    
            return new FlowBuilder<Flow>("flow01")
                    .start(step1())
                    .next(step2())
                    .next(step3())
                    .build();
    
        }
    
    }

2.启动类

package com.springbatch._03new_flow;
    
    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][]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTIwNDUwNDU_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/2020052821000595.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3UwMTIwNDUwNDU=,size_16,color_FFFFFF,t_70