文章目录:
下载erlang
下载地址
下载好之后,将文件上传到linux服务器上,通常上传到
/usr/local/bin
目录下。
一种面向并发的编程语言,RabbitMQ需要依赖erlang。注意不同版本的RabbitMQ需要不同版本的erlang。
具体可以通过rabbitmq官网查看
下载RabbitMQ
下载地址
两个都下载完成,上传至linux。
安装erlang
1、安装依赖
yum install ncurses-devel
2、解压
tar xf otp_src_20.1.tar.gz
3、进入文件夹
cd otp_src_20.1
4、configure,指定到文件夹/usr/local/erlang20
./configure --prefix=/usr/local/erlang20 --with-ssl --enable-threads --enable-smp-support --enable-kernel-poll --enable-hipe --without-javac
5、编译
make -j
6、安装
make install
7、查看erlang是否安装成功。
#进入安装好的目录
cd /usr/local/erlang20/bin
#执行命令
./erl
进入shell里面说明已经按照成功。
Erlang/OTP 20 [erts-9.1] [source] [64-bit] [smp:1:1] [ds:1:1:10] [async-threads:10] [hipe] [kernel-poll:false]
Eshell V9.1 (abort with ^G)
ssl:versions().
检查ssl版本正常
Eshell V9.1 (abort with ^G)
1> ssl:versions().
[{ssl_app,"8.2.1"},
{supported,['tlsv1.2','tlsv1.1',tlsv1]},
{available,['tlsv1.2','tlsv1.1',tlsv1,sslv3]}]
2>
erlang安装完成
安装RabbitMQ
1、解压RabbitMQ:
xz -d rabbitmq-server-generic-unix-3.6.14.tar.xz
tar xf rabbitmq-server-generic-unix-3.6.14.tar
2、安装依赖:
python的依赖:
yum install python -y
simplejson依赖
yum install xmlto -y
yum install python-simplejson -y
3、将RabbitMQ移动到指定目录:
mv rabbitmq-server-generic-unix-3.6.14 /usr/local/rabbitmq
这个不需要make
4、测试是否安装成功
cd /usr/local/rabbitmq/sbin
启动rabbitmq
./rabbitmq-server
如果输出以下图标说明成功了
[root@ccl sbin]# ./rabbitmq-server
RabbitMQ 3.6.14. Copyright (C) 2007-2017 Pivotal Software, Inc.
## ## Licensed under the MPL. See http://www.rabbitmq.com/
## ##
########## Logs: /usr/local/rabbitmq/var/log/rabbitmq/rabbit@ccl.log
###### ## /usr/local/rabbitmq/var/log/rabbitmq/rabbit@ccl-sasl.log
##########
Starting broker...
completed with 0 plugins.
查看log
tail -f /usr/local/rabbitmq/var/log/rabbitmq/rabbit@ccl.log netstat -nap | grep 5672
started 5672
ps -ef|grep rabbitmq
可以看到正在监听5672
关闭RabbitMQ
./rabbitmqctl stop
SpirngBoot集成RabbitMQ
注意:如果是远程服务器,一定要检查安全组端口是否已经开放,否则配置正确也会导致无法连接
1、添加依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-amqp</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-amqp</artifactId>
</dependency>
配置文件:
#rabbitmq
spring.rabbitmq.host=xx.xx.xxx.xxx
spring.rabbitmq.port=5672
spring.rabbitmq.username=guest
spring.rabbitmq.password=guest
spring.rabbitmq.virtual-host=/
#消费者数量
spring.rabbitmq.listener.simple.concurrency= 10
spring.rabbitmq.listener.simple.max-concurrency= 10
#消费者每次从队列获取的消息数量
spring.rabbitmq.listener.simple.prefetch= 1
#消费者自动启动
spring.rabbitmq.listener.simple.auto-startup=true
#消费失败,自动重新入队
spring.rabbitmq.listener.simple.default-requeue-rejected= true
#启用发送重试
spring.rabbitmq.template.retry.enabled=true
spring.rabbitmq.template.retry.initial-interval=1000
spring.rabbitmq.template.retry.max-attempts=3
spring.rabbitmq.template.retry.max-interval=10000
spring.rabbitmq.template.retry.multiplier=1.0
2、创建消息接收者
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.imooc.miaosha.domain.MiaoshaOrder;
import com.imooc.miaosha.domain.MiaoshaUser;
import com.imooc.miaosha.redis.RedisService;
import com.imooc.miaosha.service.GoodsService;
import com.imooc.miaosha.service.MiaoshaService;
import com.imooc.miaosha.service.OrderService;
import com.imooc.miaosha.vo.GoodsVo;
/***
*
* 消息接收器。
*
*/
@Service
public class MQReceiver {
private static Logger log = LoggerFactory.getLogger(MQReceiver.class);
@Autowired
RedisService redisService;
@Autowired
GoodsService goodsService;
@Autowired
OrderService orderService;
@Autowired
MiaoshaService miaoshaService;
/***
* @param message
*
* @RabbitListener(queues=MQConfig.MIAOSHA_QUEUE)指定监听队列名称
*/
@RabbitListener(queues=MQConfig.MIAOSHA_QUEUE)
public void receive(String message) {
log.info("receive message:"+message);
MiaoshaMessage mm = RedisService.stringToBean(message, MiaoshaMessage.class);
MiaoshaUser user = mm.getUser();
long goodsId = mm.getGoodsId();
GoodsVo goods = goodsService.getGoodsVoByGoodsId(goodsId);
int stock = goods.getStockCount();
if(stock <= 0) {
return;
}
//判断是否已经秒杀过了
MiaoshaOrder order = orderService.getMiaoshaOrderByUserIdGoodsId(user.getId(), goodsId);
if(order != null) {
return;
}
//减库存 下订单 写入秒杀订单
miaoshaService.miaosha(user, goods);
}
// @RabbitListener(queues=MQConfig.QUEUE)
// public void receive(String message) {
// log.info("receive message:"+message);
// }
//
// @RabbitListener(queues=MQConfig.TOPIC_QUEUE1)
// public void receiveTopic1(String message) {
// log.info(" topic queue1 message:"+message);
// }
//
// @RabbitListener(queues=MQConfig.TOPIC_QUEUE2)
// public void receiveTopic2(String message) {
// log.info(" topic queue2 message:"+message);
// }
//
// @RabbitListener(queues=MQConfig.HEADER_QUEUE)
// public void receiveHeaderQueue(byte[] message) {
// log.info(" header queue message:"+new String(message));
// }
//
}
3、创建消息发送者
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.amqp.core.AmqpTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.imooc.miaosha.redis.RedisService;
/***
* 消息发送器
*/
@Service
public class MQSender {
private static Logger log = LoggerFactory.getLogger(MQSender.class);
@Autowired
AmqpTemplate amqpTemplate ;
/***
* Direct模式的交换机
* Direct Exchange
* @param mm
*/
public void sendMiaoshaMessage(MiaoshaMessage mm) {
//将对象转换成String,发送
String msg = RedisService.beanToString(mm);
log.info("send message:"+msg);
amqpTemplate.convertAndSend(MQConfig.MIAOSHA_QUEUE, msg);
}
// public void send(Object message) {
// String msg = RedisService.beanToString(message);
// log.info("send message:"+msg);
// amqpTemplate.convertAndSend(MQConfig.QUEUE, msg);
// }
//
// public void sendTopic(Object message) {
// String msg = RedisService.beanToString(message);
// log.info("send topic message:"+msg);
//topic.key1可以匹配到,"topic.#"也能匹配到,
// amqpTemplate.convertAndSend(MQConfig.TOPIC_EXCHANGE, "topic.key1", msg+"1");
// amqpTemplate.convertAndSend(MQConfig.TOPIC_EXCHANGE, "topic.key2", msg+"2");
// }
//
// public void sendFanout(Object message) {
// String msg = RedisService.beanToString(message);
// log.info("send fanout message:"+msg);
// amqpTemplate.convertAndSend(MQConfig.FANOUT_EXCHANGE, "", msg);
// }
//
// public void sendHeader(Object message) {
// String msg = RedisService.beanToString(message);
// log.info("send fanout message:"+msg);
// MessageProperties properties = new MessageProperties();
// properties.setHeader("header1", "value1");
// properties.setHeader("header2", "value2");
// Message obj = new Message(msg.getBytes(), properties);
// amqpTemplate.convertAndSend(MQConfig.HEADERS_EXCHANGE, "", obj);
// }
}
4、将队列的Been配置进去
import java.util.HashMap;
import java.util.Map;
import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.BindingBuilder;
import org.springframework.amqp.core.FanoutExchange;
import org.springframework.amqp.core.HeadersExchange;
import org.springframework.amqp.core.Queue;
import org.springframework.amqp.core.TopicExchange;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class MQConfig {
public static final String MIAOSHA_QUEUE = "miaosha.queue";
public static final String QUEUE = "queue";
public static final String TOPIC_QUEUE1 = "topic.queue1";
public static final String TOPIC_QUEUE2 = "topic.queue2";
public static final String HEADER_QUEUE = "header.queue";
public static final String TOPIC_EXCHANGE = "topicExchage";
public static final String FANOUT_EXCHANGE = "fanoutxchage";
public static final String HEADERS_EXCHANGE = "headersExchage";
/**
* Direct模式 交换机Exchange
* */
// @Bean
// public Queue queue() {
// return new Queue(QUEUE, true);
// }
@Bean
public Queue queue() {
return new Queue(MIAOSHA_QUEUE, true);
}
/**
* Topic模式 交换机Exchange
* */
@Bean
public Queue topicQueue1() {
return new Queue(TOPIC_QUEUE1, true);
}
@Bean
public Queue topicQueue2() {
return new Queue(TOPIC_QUEUE2, true);
}
@Bean
public TopicExchange topicExchage(){
return new TopicExchange(TOPIC_EXCHANGE);
}
@Bean
public Binding topicBinding1() {
return BindingBuilder.bind(topicQueue1()).to(topicExchage()).with("topic.key1");
}
@Bean
public Binding topicBinding2() {
return BindingBuilder.bind(topicQueue2()).to(topicExchage()).with("topic.#");
}
/**
* Fanout模式 交换机Exchange(广播)
* */
@Bean
public FanoutExchange fanoutExchage(){
return new FanoutExchange(FANOUT_EXCHANGE);
}
@Bean
public Binding FanoutBinding1() {
return BindingBuilder.bind(topicQueue1()).to(fanoutExchage());
}
@Bean
public Binding FanoutBinding2() {
return BindingBuilder.bind(topicQueue2()).to(fanoutExchage());
}
/**
* Header模式 交换机Exchange
* */
@Bean
public HeadersExchange headersExchage(){
return new HeadersExchange(HEADERS_EXCHANGE);
}
@Bean
public Queue headerQueue1() {
return new Queue(HEADER_QUEUE, true);
}
@Bean
public Binding headerBinding() {
Map<String, Object> map = new HashMap<String, Object>();
map.put("header1", "value1");
map.put("header2", "value2");
return BindingBuilder.bind(headerQueue1()).to(headersExchage()).whereAll(map).match();
}
}
出现问题:
拒绝连接,因为我们使用的是guest用户。
解决:
进入linux服务器中
进入目录
cd /usr/local/rabbitmq/etc/rabbitmq
配置配置文件
rabbitmq.config 没有的话,就创建一个
里面添加代码:
[{rabbit, [{loopback_users,[]}]}].
然后关闭服务重新打开rabbitmq
问题解决。
踩坑记录:
安装erlang
/usr/local/bin/otp_src_20.1
目录下执行
==出现的问题:==这里./configure后erlang找不到ssl使用下面的解决
./configure --prefix=/usr/local/erlang20 --with-ssl --enable-threads --enable-smp-support --enable-kernel-poll --enable-hipe --without-javac
make -j
make install
出现的问题:
make -j的时候出错。
gcc 编译出现 internal compiler error: Killed
网上很多说内存不足的,改了半天也没好
最后解决:
https://wkcto.com/wenda/detail/1543
安装erlang前先安装Linux依赖库,执行下面的命令:
yum -y install make gcc gcc-c++ kernel-devel m4 ncurses-devel openssl-devel
出现的问题:./rabbitmq-server开启服务出现错误。
Error description:
{error,{missing_dependencies,[crypto,ssl],
[cowboy,cowlib,rabbitmq_management,
rabbitmq_management_agent,
rabbitmq_trust_store]}}
Log files (may contain more information):
/usr/local/rabbitmq/var/log/rabbitmq/rabbit@ccl.log
/usr/local/rabbitmq/var/log/rabbitmq/rabbit@ccl-sasl.log
Stack trace:
[{rabbit_plugins,ensure_dependencies,1,
[{file,"src/rabbit_plugins.erl"},{line,185}]},
{rabbit_plugins,prepare_plugins,1,
[{file,"src/rabbit_plugins.erl"},{line,203}]},
{rabbit,broker_start,0,[{file,"src/rabbit.erl"},{line,300}]},
{rabbit,start_it,1,[{file,"src/rabbit.erl"},{line,424}]},
{init,start_em,1,[]},
{init,do_boot,3,[]}]
{"init terminating in do_boot",{error,{missing_dependencies,[crypto,ssl],[cowboy,cowlib,rabbitmq_management,rabbitmq_management_agent,rabbitmq_trust_store]}}}
init terminating in do_boot ({error,{missing_dependencies,[crypto,ssl],[cowboy,cowlib,rabbitmq_management,rabbitmq_management_agent,rabbitmq_trust_store]}})
https://blog.youkuaiyun.com/qq_35946990/article/details/78967660
解决:
参考博客:
https://www.cnblogs.com/wuhenzhidu/p/rabitmq.html
./configure --prefix=/usr/local/erlang20 --with-ssl --enable-threads --enable-smp-support --enable-kernel-poll --enable-hipe --without-javac
检查erlang是否安装成功:
/usr/local/erlang20/bin目 #目录下
./erl #执行这个命令
Erlang/OTP 20 [erts-9.1] [source] [64-bit] [smp:1:1] [ds:1:1:10] [async-threads:10] [hipe] [kernel-poll:false]
Eshell V9.1 (abort with ^G)
Eshell V9.1 (abort with ^G)
1> ssl:versions(). #检查SSL版本,按照之前的configure,ssl版本能正常输出
[{ssl_app,"8.2.1"},
{supported,['tlsv1.2','tlsv1.1',tlsv1]},
{available,['tlsv1.2','tlsv1.1',tlsv1,sslv3]}]
2>
开启rabbitmq
#这个目录下执行
/usr/local/rabbitmq/sbin
./rabbitmq-server
出现的问题:
[root@ccl sbin]# ./rabbitmq-server
./rabbitmq-server: line 80: erl: command not found
解决:
vim /etc/profile
#添加代码
#set erlang environment export
PATH=$PATH:/usr/local/erlang20/bin
#set rabbitmq environment
export PATH=$PATH:/usr/local/rabbitmq/sbin
#使profile文件修改生效
source /etc/profile
[root@ccl sbin]# ./rabbitmq-server
RabbitMQ 3.6.14. Copyright (C) 2007-2017 Pivotal Software, Inc.
## ## Licensed under the MPL. See http://www.rabbitmq.com/
## ##
########## Logs: /usr/local/rabbitmq/var/log/rabbitmq/rabbit@ccl.log
###### ## /usr/local/rabbitmq/var/log/rabbitmq/rabbit@ccl-sasl.log
##########
Starting broker...
completed with 0 plugins.
tail -f /usr/local/rabbitmq/var/log/rabbitmq/rabbit@ccl.log
netstat -nap | grep 5672
ps -ef|grep rabbitmq