jms queue

[Original] JMS achieves Distributed Transaction consistency and jms transaction consistencyThe topic of distributed transactions has always been a controversial topic. Here we will give a simple demo of how to implement distributed transactions using message-oriented middleware, it also allows you to gain experience and think about distributed transactions in practice. 1. Local transaction After configuring

destination objects: queue and topic.1.2 message Submission mechanism for Web ApplicationsGenerally, no message is allowed to be lost or duplicated in desktop applications, whether it is a message sender or receiver. the JMS message Submission mechanism is based on this requirement and they guarantee the implementation of this requirement from different aspects: ① control the message confirmation at the re

consists of a header and a message body. The header consists of route information and metadata about the message. The message body carries the data or load of the application. Based on the type of the payload, messages can be divided into several types, including TextMessage, ObjectMessage, and MapMessage), BytesMessage, StreamMessage, and Message without a payload ).　　The message sending and receiving system is asynchronous, that is, the JMS client

Some Learning ExperiencesP2P mode:Concept: three roles: queue, queuesender, queuereceiver, queue, message sender, and message receiver. The sender adds a message to the queue. The receiver fetches the message from the queue. one message in the queue receives one fewer messag

through a third-party broker, which is equivalent to a post office, when a client sends a message, it only sends the message content to the broker and notifies the broker to send the message to the address. The rest is done by the broker. The client does not have to wait and can perform any other operations, the main responsibility of the broker is to ensure message delivery. We can only listen to the broker to receive messages. After comparison, I believe that you have a preliminary understand

(sender) is sent to the message Queue (queue), It is not removed from the message queue until the message receiver (receiver) receives it, and the message that is not received will always exist in the JMS container. This approach is a bit like postal communications, with only one recipient of the letter, which is kept

There are more and more distributed programs in the current project, under the architecture of SOA, various services call each other as messages, so JMS as a Java message mechanism should be well mastered, of course, like Web Services is not a direct call to JMS API. This article is mainly about the specific use of JMS in the JBOSS4, JBoss in the implementation o

. The initialized size of the cache is set to 1, using the4. Core ModuleProvides the core functionality of using JMS.When using jmstemplate, you only need to inherit the callback interface, you can define a high-level protocol by inheriting the call interface, and the Messagecreator callback interface creates a message at the specified session. It can only be called by Jmstemplate. To meet the more complex applications of the JMS API, Sessioncallback

. For consumption, JMS messages can consume messages in two ways.0 synchronizationA subscriber or receiver calls the Receive method to receive a message, and the receive method blocks until it is able to receive the message (or before it times out)0 AsyncSubscribers or receivers can register as a message listener. When the message arrives, the system automatically calls the listener's OnMessage method. JMS