RABBITMQ Installation and Testing tutorials
Installing on MAC
I. Installation
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Brew Install RABBITMQ
# # Enter the installation directory
cd/usr/local/cellar/rabbitmq/3.7.5
# start
Brew Services Start RABBITMQ
# Current Window starts
Rabbitmq-server
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You need to turn on the plugin before starting the console
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Enable Rabbitmq_management
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Enter the console: http://localhost:15672/
User name and password:guest,guest
II. configuration and Testing 1. Add account
First, you have to start MQ.
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# # Add Account
./rabbitmqctl Add_user Admin Admin
# # Add access rights
".*"
# # Set Super Permissions
./rabbitmqctl Set_user_tags Admin Administrator
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2. Coded measurements
Pom introduces dependency
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<dependency>
<groupid>com.rabbitmq</groupid>
<artifactid>amqp-client</artifactid>
</dependency>
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Start writing code
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PublicClassrabbitmqtest {
Message Queue name
PrivateFinalstatic String queue_name ="Hello";
@Test
PublicvoidSend()Throws Java.io.IOException, TimeoutException {
Create a connection Project
ConnectionFactory factory =New ConnectionFactory ();
Factory.sethost ("127.0.0.1");
Factory.setport (5672);
Factory.setusername ("Admin");
Factory.setpassword ("Admin");
Create a connection
Connection Connection = Factory.newconnection ();
Create a message Channel
Channel channel = Connection.createchannel ();
Generate a message queue
Channel.queuedeclare (Queue_name,TrueFalseFalseNULL);
for (int i =0; I <10; i++) {
String message ="Hello World RabbitMQ Count:" + i;
A message is published, the first parameter indicates the route (Exchange name), and not "" indicates the use of the default message route
Channel.basicpublish ("", Queue_name,NULL, Message.getbytes ());
System.out.println ("[x] Sent '" + Message +"‘");
}
Close message channels and connections
Channel.close ();
Connection.close ();
}
@Test
PublicvoidConsumer()Throws Java.io.IOException, Java.lang.InterruptedException, timeoutexception {
Create a connection factory
ConnectionFactory factory =New ConnectionFactory ();
Factory.sethost ("127.0.0.1");
Factory.setport (5672);
Factory.setusername ("Admin");
Factory.setpassword ("Admin");
Create a connection
Connection Connection = Factory.newconnection ();
Creating a Message Channel
Channel channel = Connection.createchannel ();
Message Queuing
Channel.queuedeclare (Queue_name,TrueFalseFalseNULL);
System.out.println ("[*] waiting for message. To exist press CTRL + C ");
Atomicinteger count =New Atomicinteger (0);
Information that consumers use to obtain message queue bindings for messages
Consumer Consumer =New Defaultconsumer (channel) {
@Override
PublicvoidHandledelivery(String Consumertag, Envelope Envelope, AMQP.) Basicproperties Properties,
Byte[] body)Throws IOException {
String message =new string (body, try {
System.out.println ( "[x] Received '" + message);
} finally {
System.out.println ( "[x] Done");
Channel.basicack (Envelope.getdeliverytag (), false);
" Channel.basicconsume (queue_name, false, consumer);
Thread.Sleep (1000 * 60);
}
/span> |
One thing to be aware of is:
- Production message:
channel.queueDeclare(QUEUE_NAME, true, false, false, null);
- Consumer News:
channel.queueDeclare(QUEUE_NAME, true, false, false, null);
- Both production and consumption declare channel, which requires the same configuration parameters, otherwise it cannot consume data
3. Output description
The plug-in data is executed first, and after execution is completed, it can be viewed from the console:
You can see that there is a queue, the column named Hello, a total of 10 data
The next step is to consume data, execute the consumer method, output the log
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[*] WaitingFor message. To exist press CTRL + C
[x] Received' Hello World RabbitMQ count:0
[x] Done
[x] Received ' Hello World RabbitMQ count:1
[x] Done
[x] Received' Hello World RabbitMQ count:2
[x] Done
[x] Received ' Hello World RabbitMQ count:3
[x] do
[x] Received ' Hello World RabbitMQ count:4
[x] do
[x] Received ' Hello World RabbitMQ count:5
[x] done
[x] Received ' Hello World RabbitMQ count:6
[x] do
[x] Received ' Hello world RabbitMQ count:7
[x] do
[x] Receive D ' Hello World RabbitMQ count:8
[x] done
[x] Received ' Hello world RabbitMQ count:9
[x] done
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Looking back at the queue, we found that the data volume was 0.
4. Ack problem
For the ACK problem, if there is an exception when consuming data, and I do not want the data to be lost, this time it is necessary to consider the mechanism of manual ACK to ensure
You first need to set up a manual ack
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Set Autoack to False
False, consumer);
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Second, after the consumption data is finished, the active Ack/nack
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if (success) {
FALSE);
else {
FALSE);
}
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III. other Grey-grey blog:https://liuyueyi.github.io/hexblog
A gray and gray personal blog, recording all the study and work in the blog, welcome everyone to visit
Statement
The letter is not as good as, the above content, purely opinion, because of limited personal ability, such as the discovery of bugs or better advice, always welcome criticism
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RABBITMQ Installation and testing tutorial in Mac Environment
