RabbitMQ安装、配置与入门_erlange erl 报错

1、下载与安装

1.1 Erlang下载安装

由于RabbitMQ使用Erlang语言编写，所以先安装Erlang语言运行环境。
http://www.erlang.org/downloads

下载后，直接单击Next下一步进行安装

然后配置环境变量

ERLANG_HOME=C:\Program Files\erl10.4
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在Path中增加

%ERLANG_HOME%\bin
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1.2 RabbitMQ下载安装

https://www.rabbitmq.com/install-windows.html

安装完成后，进行环境变量配置

RABBITMQ_SERVER=C:\Program Files\RabbitMQ Server\rabbitmq_server-3.7.15
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继续在Path中增加

%RABBITMQ_SERVER%\sbin;
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2、基本配置

2.1 开机启动

Microsoft Windows [版本 6.1.7601]
版权所有 (c) 2009 Microsoft Corporation。保留所有权利。

D:\Users\chengyq>rabbitmq-service enable
C:\Program Files\erl10.4\erts-10.4\bin\erlsrv: Service RabbitMQ enabled.


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2.2 启动服务

D:\Users\chengyq>rabbitmq-service start
请求的服务已经启动。

请键入 NET HELPMSG 2182 以获得更多的帮助。

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2.3 查询状态

D:\Users\chengyq>rabbitmqctl status
Status of node rabbit@TPA-VDI-OA02-10 ...
[{pid,9344},
 {running_applications,
     [{rabbit,"RabbitMQ","3.7.15"},
      {mnesia,"MNESIA  CXC 138 12","4.16"},
      {rabbit_common,
          "Modules shared by rabbitmq-server and rabbitmq-erlang-client",
          "3.7.15"},
      {ranch,"Socket acceptor pool for TCP protocols.","1.7.1"},
      {ssl,"Erlang/OTP SSL application","9.3"},
      {public_key,"Public key infrastructure","1.6.7"},
      {asn1,"The Erlang ASN1 compiler version 5.0.9","5.0.9"},
      {inets,"INETS  CXC 138 49","7.0.8"},
      {jsx,"a streaming, evented json parsing toolkit","2.9.0"},
      {crypto,"CRYPTO","4.5"},
      {sysmon_handler,"Rate-limiting system_monitor event handler","1.1.0"},
      {os_mon,"CPO  CXC 138 46","2.5"},
      {observer_cli,"Visualize Erlang Nodes On The Command Line","1.5.0"},
      {xmerl,"XML parser","1.3.21"},
      {recon,"Diagnostic tools for production use","2.5.0"},
      {lager,"Erlang logging framework","3.6.10"},
      {goldrush,"Erlang event stream processor","0.1.9"},
      {compiler,"ERTS  CXC 138 10","7.4"},
      {syntax_tools,"Syntax tools","2.2"},
      {sasl,"SASL  CXC 138 11","3.4"},
      {stdlib,"ERTS  CXC 138 10","3.9"},
      {kernel,"ERTS  CXC 138 10","6.4"}]},
 {os,{win32,nt}},
 {erlang_version,
     "Erlang/OTP 22 [erts-10.4] [64-bit] [smp:4:4] [ds:4:4:10] [async-threads:64
]\n"},
 {memory,
     [{connection_readers,0},
      {connection_writers,0},
      {connection_channels,0},
      {connection_other,0},
      {queue_procs,0},
      {queue_slave_procs,0},
      {plugins,16740},
      {other_proc,23525912},
      {metrics,196492},
      {mgmt_db,0},
      {mnesia,77816},
      {other_ets,2525544},
      {binary,199520},
      {msg_index,32208},
      {code,24245647},
      {atom,1131721},
      {other_system,11012656},
      {allocated_unused,11156960},
      {reserved_unallocated,0},
      {strategy,rss},
      {total,[{erlang,62964256},{rss,74121216},{allocated,74121216}]}]},
 {alarms,[]},
 {listeners,[{clustering,25672,"::"},{amqp,5672,"::"},{amqp,5672,"0.0.0.0"}]},
 {vm_memory_calculation_strategy,rss},
 {vm_memory_high_watermark,0.4},
 {vm_memory_limit,3435787059},
 {disk_free_limit,50000000},
 {disk_free,175843475456},
 {file_descriptors,
     [{total_limit,8092},
      {total_used,2},
      {sockets_limit,7280},
      {sockets_used,0}]},
 {processes,[{limit,1048576},{used,243}]},
 {run_queue,1},
 {uptime,872},
 {kernel,{net_ticktime,60}}]
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2.4 查看用户

D:\Users\chengyq>rabbitmqctl list_users
Listing users ...
user    tags
guest   [administrator]

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2.5 开启rabbitmq_management

开启rabbitmq_management插件，在web界面查看和管理RabbitMQ服务

D:\Users\chengyq>rabbitmq-plugins enable rabbitmq_management
Enabling plugins on node rabbit@TPA-VDI-OA02-10:
rabbitmq_management
The following plugins have been configured:
  rabbitmq_management
  rabbitmq_management_agent
  rabbitmq_web_dispatch
Applying plugin configuration to rabbit@TPA-VDI-OA02-10...
The following plugins have been enabled:
  rabbitmq_management
  rabbitmq_management_agent
  rabbitmq_web_dispatch

started 3 plugins.

D:\Users\chengyq>
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地址 http://localhost:15672/
默认的用户名：guest
默认的密码为：guest

3、简单样例程序

3.1 依赖

        <dependency>
            <groupId>com.rabbitmq</groupId>
            <artifactId>amqp-client</artifactId>
            <version>5.7.1</version>
        </dependency>
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3.2 公共类

import com.rabbitmq.client.AMQP;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;

import java.io.IOException;
import java.util.concurrent.TimeoutException;

public class Util {
    public static Connection getConnection() {
        // connection是socket连接的抽象，并且为我们管理协议版本协商（protocol version negotiation），
        // 认证（authentication ）等等事情。这里我们要连接的消息代理在本地，因此我们将host设为“localhost”。
        // 如果我们想连接其他机器上的代理，只需要将这里改为特定的主机名或IP地址。
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");
        factory.setPort(5672); //默认端口号
        factory.setUsername("guest");//默认用户名
        factory.setPassword("guest");//默认密码
        try {
            return factory.newConnection();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (TimeoutException e) {
            e.printStackTrace();
        }
        return null;
    }
}
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3.3 消息发送者

import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;

public class Send {
    private final static String QUEUE_NAME = "Hello";

    public static void main(String[] args) throws Exception {
        Connection connection = Util.getConnection();
        Channel channel = connection.createChannel();
        // 接下来，我们创建一个channel，绝大部分API方法需要通过调用它来完成。
        // 发送之前，我们必须声明消息要发往哪个队列，然后我们可以向队列发一条消息：
        channel.queueDeclare(QUEUE_NAME, false, false, false, null);
        String message = "[x] Hello world";
        channel.basicPublish("", QUEUE_NAME, null, message.getBytes());
        System.out.println("Sent '" + message + "'");
        channel.close();
        connection.close();
    }
}

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3.3 消息接受者

import com.rabbitmq.client.*;

import java.io.IOException;

public class Receiver {
    private final static String QUEUE_NAME = "Hello";

    public static void main(String[] args) throws Exception {
        Connection connection = Util.getConnection();
        Channel channel = connection.createChannel();
        channel.queueDeclare(QUEUE_NAME, false, false, false, null);
        System.out.println(" [*] Waiting for messages. To exit press CTRL+C");
        Consumer consumer = new DefaultConsumer(channel) {
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                                       byte[] body) throws IOException {
                String message = new String(body, "UTF-8");
                System.out.println(" [x] Received '" + message + "'");
            }
        };
        channel.basicConsume(QUEUE_NAME, true, consumer);
    }
}
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