ActiveMQ is a Java-based open-source Message Server product. Therefore, we can integrate it into a business system implemented through Java. The following is a brief summary of the integration method.
First, let's take a look at some core classes in ActiveMQ:
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Org. apache.
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Linux operating system
Enter the bin directory, the 64-bit operating system can enter/bin/linux-x86-64
Startup command:./activemq start this command causes MQ to run in the background by default.
Stop command:./activemq stop
Window System
Enter the bin directory. The 64-bit operating system can enter \ bin \ win64
Start command: Click activemq. bat. to inst
. Queue TestBrowser access: Http://localhost:8080/pro/publish/queueThen look at the console, and those users receive the information.From the last two pictures, A, B cannot receive data at the same time. This is the way of the queue, point-to-point.Then I want to point to the opposite, what to do?2. Topic testBrowser access page: Http://localhost:8080/pro/publish/topicA the user has fully received the information. And look at User B.No problem, also r
The previous article introduced the Activemq HA scheme based on ZK, although it is easier to understand, but there are two deficiencies:1) A large number of nodes occupied, 1 ZK cluster at least 3 nodes, 1 ACTIVEMQ cluster also have at least 3 nodes, but in fact, only one master node in the normal operation of external response, in other words, the cost of 6 nodes only to ensure 1
first, the realization principle
The ActiveMQ hierarchy diagram is shown in Figure 1.1.
Figure 1.1 ActiveMQ Structure hierarchy diagram
As the above figure shows, ActiveMQ is mainly composed of connectors, broker and message store, focusing on the broker section. Broker's representation in ActiveMQ is "Interface (int
Build ActiveMQ clusters based on ZooKeeper and LevelDBOfficial Document: Http://activemq.apache.org/replicated-leveldb-store.htmlCluster schematic diagram:650) this.width=650; "Src=" http://activemq.apache.org/replicated-leveldb-store.data/replicated-leveldb-store.png "alt=" Replicated-leveldb-store.png "/>The principle of high availability:Use Zookeeper (cluster) to register all ACTIVEMQ Broker. Only one o
Step One: Open the Conf folder under the ACTIVEMQ installation directory, open the Conf/jetty.xml,
Value value = "false" for property name authenticate, modified to value = "true". The implication is: Launch login security authentication mechanism
Step Two: Configure ACTIVEMQ secure login account and password
Control ACTIVEMQ Security login account and password
It is relatively simple to integrate ACTIVEMQ in spring boot, there is no need to install any services, the default use of memory Activemq, of course, with ACTIVEMQ server is better. Here we briefly describe how to use this section is mainly divided into the following several steps:(1) New Maven Java Project;(2) The introduction of dependency in Pom.xml;(3) Codin
Summary
1. How to build an active rest service environment
2. REST API and related configuration parameter introduction
3. Introduction of Optimizeack mechanism in ACTIVEMQ
ActiveMQ implements the RESTful API, which allows developers to post and consume messages directly via HTTP Post/get, a protocol based on text (/file) transmission. Because in some particular environment, It is easier to manipulate mess
First, install the ACTIVEMQ
Download ACTIVEMQ
Download Address: http://activemq.apache.org/download.html
I'm using a apache-activemq-5.9.0-bin.zip.
Decompression Apache-activemq-5.9.0-bin.zip
Go to Bin directory
I'm using a win7 64-bit system.
If you run the Activemq.bat file directly in the bin directory, it will fla
1.1 InstallationCurrently used version is activemq-5.14.0, can download the corresponding version of the official websiteStep 1: The server requires a pre-installed JDK (this does not describe how to install the JDK)Step 2: Unpack the installation package Apache-activemq-5.14.0.zipUnzip Apache-activemq-5.14.0.zipStep 3: Enter the bin directory to execute the comm
According to the company's actual needs, the company's system structure of the migration, in the process of migration, encountered a very wonderful problem: start activemq times wrong, the specific information is as follows:2015-07-2718:00:43,922|warn|exceptionthrownfrom Lifecycleprocessoroncontextclose|org.apache.activemq.xbean.xbeanbrokerfactory$1 |mainjava.lang.illegalstateexception:lifecycleprocessornotinitialized- call ' Refresh ' beforeinvokingl
1. Download and install ACTIVEMQACTIVEMQ Official website: http://activemq.apache.org/download.htmlActiveMQ provides several versions of Windows and Linux, Unix, and so on, the landlord chose the Linux version for development.After downloading the installation package, unzip the directory: From its directory, it is still very simple:
The bin holds the script file
Conf storage is a basic configuration file
Data is stored in a log file
Docs is stored in the documentat
1. Download ACTIVEMQ:Http://activemq.apache.org/download-archives.html2. Run ACTIVEMQ unzip Apache-activemq-5.5.1-bin.zip, and then double-click Apache-activemq-5.5.1\bin\win64\activemq.bat to run the ACTIVEMQ program.Note: If you encounter a situation that cannot be started, try changing the computer name to full Engl
JMS message persistence: Persistence of ActiveMQ messages to mySql database ActiveMQ5.8.0 uses kahadb as the default message persistence mode. By using the default persistence mechanism, we cannot directly see how the message persists. The JDBC persistence mechanism provided by ActiveMQ can store persistent information to the database. By viewing the table structure and stored data generated by
JAAS provides pluggable authentication, which means ActiveMQ would use the same authentication API regardless of the Techni Que used to verify user credentials (a text file, a relational database, LDAP, and so on). All that's required is an implementationof the Javax.security.auth.spi.LoginModule interface and a configuration change to ActiveMQ. Fortunately, ActiveMQ
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