Java EE中有什么方法可以进行异步通信？

Question

I want to know what approaches there are in Java EE that I can use them for asynchronous communication especially in distributed systems? (in fact what approaches there are in java that designed for this aim)

Answer 1

Some options:

Asynchronous web services

Pros:

• Well known standard
• Easy to debug
• Can participate in a JTA transaction

Cons:

• No guarantees on delivery
• No persistance, retry, etc.
• Not so good performance (HTTP, serialization overhead)

Java Message Service

Pros:

• Well known standard
• Can participate in a JTA transaction
• Can be setup so it guarantees delivery, retries if needed
• Multiple implementations to choose from
• Good performance

Cons:

• Requires a separate server (if not built in into your appserver)
• Requires experience with JMS

See this for implementations: http://en.wikipedia.org/wiki/Java_Message_Service#Provider_implementations

Answer 2

您可以使用JMS进行异步消息传递