springbatch自学之路-04（job的创建与使用）

蔚落 2023-02-13 11:26 45阅读 0赞

**目录**

1.使用start。。。next。。。的方式

2.使用from。。。on。。。to。。。的方式

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1.使用start。。。next。。。的方式

直接上代码：

配置类：

package com.springbatch._02new_job;
    
    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.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(step1())
                    .next(step2())
                    .next(step3())
                    .build();
    
        }
    
    
        @Bean
        public Step step3() {
            return stepBuilderFactory.get("step3")
                    .tasklet(new Tasklet() {
                        @Override
                        public RepeatStatus execute(StepContribution stepContribution, ChunkContext chunkContext) throws Exception {
                            System.out.println("step3");
                            return RepeatStatus.FINISHED;
                        }
                    }).build();
        }
    
        @Bean
        public Step step2() {
            return stepBuilderFactory.get("step2")
                    .tasklet(new Tasklet() {
                        @Override
                        public RepeatStatus execute(StepContribution stepContribution, ChunkContext chunkContext) throws Exception {
                            System.out.println("step2");
                            return RepeatStatus.FINISHED;
                        }
                    }).build();
        }
    
        @Bean
        public Step step1() {
    
            return stepBuilderFactory.get("step1")
                    .tasklet(new Tasklet() {
                        @Override
                        public RepeatStatus execute(StepContribution stepContribution, ChunkContext chunkContext) throws Exception {
                            System.out.println("step1");
                            return RepeatStatus.FINISHED;
                        }
                    }).build();
    
        }
    
    }

启动类

package com.springbatch._02new_job;
    
    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);
    
        }
    
    }

2.使用from。。。on。。。to。。。的方式

配置类

package com.springbatch._02new_job;
    
    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.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 newJob2() {
    
            return jobBuilderFactory.get("newJob2")
                    .start(step1())
                    .on("COMPLETED").to(step2())
                    .from(step2()).on("COMPLETED").to(step3())
                    .from(step3()).end()
                    .build();
    
        }
    
        @Bean
        public Step step3() {
            return stepBuilderFactory.get("step3")
                    .tasklet(new Tasklet() {
                        @Override
                        public RepeatStatus execute(StepContribution stepContribution, ChunkContext chunkContext) throws Exception {
                            System.out.println("step3");
                            return RepeatStatus.FINISHED;
                        }
                    }).build();
        }
    
        @Bean
        public Step step2() {
            return stepBuilderFactory.get("step2")
                    .tasklet(new Tasklet() {
                        @Override
                        public RepeatStatus execute(StepContribution stepContribution, ChunkContext chunkContext) throws Exception {
                            System.out.println("step2");
                            return RepeatStatus.FINISHED;
                        }
                    }).build();
        }
    
        @Bean
        public Step step1() {
    
            return stepBuilderFactory.get("step1")
                    .tasklet(new Tasklet() {
                        @Override
                        public RepeatStatus execute(StepContribution stepContribution, ChunkContext chunkContext) throws Exception {
                            System.out.println("step1");
                            return RepeatStatus.FINISHED;
                        }
                    }).build();
    
        }
    
    }

启动类