我正在玩一个简单的批处理，尽管有 H2 依赖性，但数据源配置存在问题。
控制台输出:
Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.
我的类在字符串上运行并使用:
org.springframework.batch.item.ItemProcessor;
org.springframework.batch.item.ItemReader;
org.springframework.batch.item.ItemWriter;
主要
@SpringBootApplication
public class Boo2BatchApplication {
public static void main(String[] args) {
SpringApplication.run(Boo2BatchApplication.class, args);
}
}
配置:
import org.springframework.batch.core.Job;
import org.springframework.batch.core.Step;
import org.springframework.batch.core.configuration.annotation.EnableBatchProcessing;
import org.springframework.batch.core.configuration.annotation.JobBuilderFactory;
import org.springframework.batch.core.configuration.annotation.StepBuilderFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
@EnableBatchProcessing
public class BatchConfig {
@Bean
public Step recordsStep(StepBuilderFactory stepBuilderFactory, RecordReader recordReader,
RecordProcessor<String> recordProcessor, RecordWriter recordWriter) {
return stepBuilderFactory.get("recordsSetp").<String, String>chunk(4).reader(recordReader)
.processor(recordProcessor).writer(recordWriter).build();
}
@Bean
Job recordsJob(JobBuilderFactory jobBuilderFactory, Step recordsStep) {
return jobBuilderFactory.get("recordsJob").start(recordsStep).build();
}
}
最佳答案
当像 H2 这样的数据库位于路径上时，默认配置数据源(正如 @Alireza Khajavi 所说)。无需额外配置。我的类路径被搞乱了，并且 pom 文件中的依赖项在启动期间不可用。
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
关于java - 如何在 Spring Boot 2 中为 Spring Batch 配置数据源以进行测试，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/52025000/