如何在spring Boot 2中为Spring batch配置数据源以进行测试

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-batch</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>

spring.datasource.url=jdbc:mysql://localhost:3306/mydatabase
spring.datasource.username=username
spring.datasource.password=password
spring.datasource.driver-class-name=com.mysql.jdbc.Driver

@SpringBatchTest
public class MyBatchJobTest {
    // 测试代码
}

@Autowired
private JobLauncherTestUtils jobLauncherTestUtils;

@Test
public void testBatchJob() throws Exception {
    JobExecution jobExecution = jobLauncherTestUtils.launchJob();
    // 检查作业执行的状态和结果
    Assert.assertEquals(BatchStatus.COMPLETED, jobExecution.getStatus());
}