我已经开始探索Spring Batch并遇到一些基本问题。
如何为作业存储库单独配置数据源。我的业务数据位于不同的存储库中。
当我尝试我的批处理应用程序时,spring batch repeateldy尝试一遍又一遍地创建相同的作业模式表。
感谢您的帮助。
答案 0 :(得分:0)
如果您使用的是Spring Boot,那么请执行此操作。 请注意下面我们正在配置getDatasource()方法,它提供了我们需要的数据源。这将强制启动不使用默认数据源。
package com.demo.configuration;
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.EnableBatchProcessing;
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.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.datasource.SimpleDriverDataSource;
import javax.sql.DataSource;
/**
* Created by Sushil Behera on 12/26/2017.
*/
@Configuration
@EnableBatchProcessing
public class BatchConfiguration {
@Autowired
public JobBuilderFactory jobBuilderFactory;
@Autowired
public StepBuilderFactory stepBuilderFactory;
@Bean
public Job job1(){
return jobBuilderFactory.get("job1")
.start(step1())
.build();
}
@Bean
public Step step1(){
return stepBuilderFactory.get("job1step1")
.tasklet(
new Tasklet(){
@Override
public RepeatStatus execute(StepContribution stepContribution, ChunkContext chunkContext) throws Exception {
System.out.println("Tasklet executed");
return RepeatStatus.FINISHED;
}
}
).build();
}
@Bean
@ConfigurationProperties(prefix = "demo.datasource")
public DataSource getDatasource(){
return new SimpleDriverDataSource();
}
}
application.properties
spring.application.name=Demo
spring.datasource.driverClassName=oracle.jdbc.driver.OracleDriver
spring.datasource.url=URL1
spring.datasource.username=ABC
spring.datasource.password=ABC1
demo.datasource.url=URL2
demo.datasource.driverClassName=oracle.jdbc.driver.OracleDriver
demo.datasource.username=XYZ
demo.datasource.password=XYZ1