如何解决JobBuilderFactory和StepBuilderFactory的弃用警告

Question

我使用以下工厂来设置我的 Spring Batch 应用程序：

private JobBuilderFactory jobBuilderFactory;
private StepBuilderFactory stepBuilderFactory;

但是，我收到以下弃用警告：

The type JobBuilderFactory has been deprecated since version 5.0.0 and marked for removal

这些是我正在使用的 bean 声明：

The type JobBuilderFactory has been deprecated since version 5.0.0 and marked for removal

我还收到以下错误：

Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'jobController': Unsatisfied dependency expressed through field 'job': Error creating bean with name 'runJob' defined in class path resource [com/nissan/auraQuantics/config/SpringBatchConfig.class]: Failed to instantiate [org.springframework.batch.core.Job]: Factory method 'runJob' threw exception with message: Error creating bean with name 'step1' defined in class path resource [com/nissan/auraQuantics/config/SpringBatchConfig.class]: Unsatisfied dependency expressed through method 'step1' parameter 2: No qualifying bean of type 'org.springframework.batch.item.database.JdbcBatchItemWriter<com.nissan.auraQuantics.entity.MSTAuraQuanticNEUser>' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {}
2023-02-20T16:10:49.187+05:30  INFO 22644 --- [  restartedMain] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'
2023-02-20T16:10:49.199+05:30  INFO 22644 --- [  restartedMain] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Shutdown initiated...
2023-02-20T16:10:49.221+05:30  INFO 22644 --- [  restartedMain] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Shutdown completed. 

Answer 1

您可以使用JobBuilderFactoryand类来代替使用and ：StepBuilderFactoryJobBuilderStepBuilder

@Bean
public Step step1() {
    return new StepBuilder("csv-step", jobRepository)
        .<MSTabcNEUser, MSTabcNEUser>chunk(10, transactionManager)
        .reader(reader())
        .processor(processor())
        .writer(writer())
        .taskExecutor(taskExecutor())
        .build();
    }

@Bean
public Job runJob() {
    return new JobBuilder("MSTabcNEUser", jobRepository)
        .start(step1())
        .build();
}

最大的区别是您需要将 a 传递JobRepository给这些构建器并将 aPlatformTransactionManager传递给chunk()方法。您可以将这些作为字段添加到您的配置类中。例如：

private JobRepository jobRepository;
private PlatformTransactionManager transactionManager;

另请注意，ItemWriter界面已从支持项目集合更改为Chunk<? extends T>. 您可能必须重构一些编写器。另请查看Spring Batch 5.0 迁移指南。