英文:
Spring Transaction Management @Transactional behavior
问题
示例1:
@Service
public class UserService {
@Transactional(readOnly = true)
public void invoice() {
createPdf();
// 发送电子邮件等操作
}
@Transactional(propagation = Propagation.REQUIRES_NEW)
public void createPdf() {
// ...
}
}
示例2:
@Service
public class UserService {
@Autowired
private InvoiceService invoiceService;
@Transactional(readOnly = true)
public void invoice() {
invoiceService.createPdf();
// 发送电子邮件等操作
}
}
@Service
public class InvoiceService {
@Transactional(propagation = Propagation.REQUIRES_NEW)
public void createPdf() {
// ...
}
}
谢谢
英文:
I wanted to know how the Spring @Transactional will work for the following Coding scenarios. I am using Spring 4 + Hiberante 5 with Oracle 19C database for this example.
Example 1:
@Service
public class UserService {
@Transactional(readOnly = true)
public void invoice() {
createPdf();
// send invoice as email, etc.
}
@Transactional(propagation = Propagation.REQUIRES_NEW)
public void createPdf() {
// ...
}
}
Example 2:
@Service
public class UserService {
@Autowired
private InvoiceService invoiceService;
@Transactional(readOnly = true)
public void invoice() {
invoiceService.createPdf();
// send invoice as email, etc.
}
}
@Service
public class InvoiceService {
@Transactional(propagation = Propagation.REQUIRES_NEW)
public void createPdf() {
// ...
}
}
Thanks
答案1
得分: 1
示例 1：由于您正在从您的服务中调用createPDF方法，在此情况下，@Transactional(REQUIRES_NEW)注解将被有效地“忽略”。不会打开新的事务。
示例 2：由于您正在调用另一个被事务代理包装的服务，您将获得一个“新事务”，因为注解会被尊重。
您还可能希望阅读这篇文章：Spring事务管理：@Transactional深入解析
英文:
Example 1: As you are calling the createPDF method from inside your Service, the @Transactional(REQUIRES_NEW) annotation will effectively be ignored. There will be no new transaction opened.
Example 2: As your are calling another service, which is wrapped in a transactional proxy, you will get a new transaction, as the annotation is respected.
You also might want to read up on this article: Spring Transaction Management: @Transactional In-Depth
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