springbatch自学之路-10（JOB参数）

你的名字 2023-02-20 02:13 59阅读 0赞

**目录**

1.启动类

2.Jbb配置类

--------------------

1.启动类

package com.springbatch._08job_param;
    
    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.Jbb配置类

package com.springbatch._08job_param;
    
    import org.springframework.batch.core.*;
    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;
    
    import java.util.Map;
    
    @Configuration
    public class ParamJobConfig implements StepExecutionListener {
    
        //创建 创建job的对象
        @Autowired
        private JobBuilderFactory jobBuilderFactory;
    
        //创建 创建step的对象
        @Autowired
        private StepBuilderFactory stepBuilderFactory;
    
        Map<String, JobParameter> parameterMap;
    
        @Bean
        public Job paramJob() {
    
            return jobBuilderFactory.get("paramJob-01")
                    .start(paramJobStep())
                    .build();
    
        }
    
        /**
         * 使用监听器获取参数
         *
         * @param
         * @throws
         * @Title: <p>paramJobStep</p>
         * @return: org.springframework.batch.core.Step
         * @author: zq
         * @Date: 2020/6/21 20:42
         * @version: 1.0
         * @Copyright: zq. All rights reserved.
         */
        @Bean
        public Step paramJobStep() {
            return stepBuilderFactory.get("paramJobStep")
                    .listener(this)
                    .tasklet(new Tasklet() {
                        @Override
                        public RepeatStatus execute(StepContribution stepContribution, ChunkContext chunkContext) throws Exception {
    
                            System.out.println(parameterMap.get("info"));
                            return RepeatStatus.FINISHED;
                        }
                    })
                    .build();
        }
    
        @Override
        public void beforeStep(StepExecution stepExecution) {
    
            parameterMap = stepExecution.getJobParameters().getParameters();
    
        }
    
        @Override
        public ExitStatus afterStep(StepExecution stepExecution) {
            return null;
        }
    }

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