手写超级好用的rabbitmq-spring-boot-start启动器
1.前言
由于springBoot官方提供的默认的rabbitMq自动装配不是那么好用，一个项目中只能配置使用一个rabbitMq的服务器，队列也需要编码的方式定义，这种繁杂且不易使用，用一次需要写一次硬编码，之前有一个想法是，能不能使用springBoot官方提供的自动装配实现一个多rabbitMq多队列配置并且支持多种延迟队列的这种多对多关系的实现，但是左思右想，springBoot官方提供的这个rabbitMq自动装配不能满足我的需求，所以我在酝酿了很久，也把官方那个自动装配的源码看了一遍又一遍，随着我之前手写实现了好几个starter启动器，然后就想实现一个rabbitMq的starter,只要简单的配置即可轻松的实现上面的功能，然后提供了一套好用的api,使用的时候只需要在项目中引入这个启动器，节省很大的硬编码和配置灵活，配置改变只需要重启项目即可，对业务使用友好的一个starter启动器，再也不用为如何使用rabbitMq的集成而烦恼了，只需要简单的配置就可以实现好用的功能，让我们把精力放在业务上，而不是代码和代码集成上，大大的提升开发效率和节省我们宝贵的时间，让我们用宝贵的时间来享受时光，生命和生活，效率至上，远离加班，简约也简单，优雅也优美，简单配置就可以实现交换机、队列、绑定关系等根据配置自动装配，然后实现发送普通消息和3种延迟队列发送延迟消息，3中延迟队列实现如下：
一：延迟插件实现延迟队列
交换机类型必须CustomExchange
二：TTL + 死信队列/延迟交换机实现延迟队列
三： 延迟交换机 + 消息设置setHeader(“x-delay”, xxx)
还可以配置相同的rabbitMq服务器不同的虚拟机，单独配置，遵循下标递增不重复即可
实现思路如下。
2.工程目录结构
文章来源：https://www.toymoban.com/news/detail-850011.html
3.主要实现原理
3.1spring.factories配置
org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
com.zlf.config.RabbitConfig,\
com.zlf.config.ExchangeQueueConfig,\
com.zlf.starter.RabbitAutoConfiguration
3.2EnableZlfRabbitMq配置
package com.zlf.starter;
import org.springframework.context.annotation.Import;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* 使用需要在启动类上加入@EnableZlfRabbit注解
* 启动类上排除默认的自动装配RabbitAutoConfiguration
*
* @author zlf
* 启动类上加入如下配置
* @SpringBootApplication(exclude = {
* RabbitAutoConfiguration.class})
* @Import(value = {RabbitService.class, ZlfMqSpringUtils.class})
*/
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Inherited
@Import(ZlfRabbitMqRegistrar.class)
public @interface EnableZlfRabbitMq {
}
3.3RabbitAutoConfiguration配置
package com.zlf.starter;
import org.springframework.amqp.rabbit.annotation.EnableRabbit;
import org.springframework.amqp.rabbit.config.RabbitListenerConfigUtils;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.annotation.Configuration;
@Configuration(proxyBeanMethods = false)
@EnableRabbit
@ConditionalOnMissingBean(name = RabbitListenerConfigUtils.RABBIT_LISTENER_ANNOTATION_PROCESSOR_BEAN_NAME)
public class RabbitAutoConfiguration {
}
3.4ZlfRabbitMqRegistrar配置
package com.zlf.starter;
import cn.hutool.core.collection.CollectionUtil;
import com.alibaba.fastjson.JSON;
import com.rabbitmq.client.Channel;
import com.zlf.config.ExchangeQueueConfig;
import com.zlf.config.ExchangeQueueProperties;
import com.zlf.config.RabbitConfig;
import com.zlf.config.RabbitProperties;
import com.zlf.config.RabbitProperties.AmqpContainer;
import com.zlf.config.RabbitProperties.Cache;
import com.zlf.config.RabbitProperties.Cache.Connection;
import com.zlf.config.RabbitProperties.ContainerType;
import com.zlf.config.RabbitProperties.DirectContainer;
import com.zlf.config.RabbitProperties.ListenerRetry;
import com.zlf.config.RabbitProperties.Retry;
import com.zlf.config.RabbitProperties.SimpleContainer;
import com.zlf.config.RabbitProperties.Template;
import com.zlf.constants.ErrorExchangeQueueInfo;
import com.zlf.dto.ExchangeQueueDto;
import com.zlf.enums.DelayTypeEnum;
import com.zlf.enums.ExchangeTypeEnum;
import com.zlf.enums.FunctionTypeEnum;
import com.zlf.service.RabbitService;
import lombok.SneakyThrows;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.amqp.core.AbstractExchange;
import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.Queue;
import org.springframework.amqp.rabbit.config.DirectRabbitListenerContainerFactory;
import org.springframework.amqp.rabbit.config.RetryInterceptorBuilder;
import org.springframework.amqp.rabbit.config.SimpleRabbitListenerContainerFactory;
import org.springframework.amqp.rabbit.connection.CachingConnectionFactory;
import org.springframework.amqp.rabbit.connection.CachingConnectionFactory.ConfirmType;
import org.springframework.amqp.rabbit.connection.RabbitConnectionFactoryBean;
import org.springframework.amqp.rabbit.core.RabbitAdmin;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.amqp.rabbit.retry.MessageRecoverer;
import org.springframework.amqp.rabbit.retry.RepublishMessageRecoverer;
import org.springframework.amqp.rabbit.support.ValueExpression;
import org.springframework.amqp.support.converter.Jackson2JsonMessageConverter;
import org.springframework.beans.BeansException;
import org.springframework.beans.MutablePropertyValues;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.BeanFactoryAware;
import org.springframework.beans.factory.config.ConfigurableBeanFactory;
import org.springframework.beans.factory.config.ConstructorArgumentValues;
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
import org.springframework.beans.factory.support.RootBeanDefinition;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.boot.context.properties.PropertyMapper;
import org.springframework.boot.context.properties.bind.Binder;
import org.springframework.context.EnvironmentAware;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.ImportBeanDefinitionRegistrar;
import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.core.env.Environment;
import org.springframework.core.type.AnnotationMetadata;
import org.springframework.retry.backoff.ExponentialBackOffPolicy;
import org.springframework.retry.policy.SimpleRetryPolicy;
import org.springframework.retry.support.RetryTemplate;
import org.springframework.util.CollectionUtils;
import java.time.Duration;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
/**
* spring:
* rabbitmq:
* listener:
* simple:
* acknowledge-mode: auto #由spring监测listener代码是否出现异常，没有异常则返回ack；抛出异常则返回nack
* manual：手动ack，需要在业务代码结束后，调用api发送ack。
* auto：自动ack，由spring监测listener代码是否出现异常，没有异常则返回ack；抛出异常则返回nack
* none：关闭ack，MQ假定消费者获取消息后会成功处理，因此消息投递后立即被删除(此时，消息投递是不可靠的，可能丢失)
* <p>
* 原文链接：https://blog.csdn.net/m0_53142956/article/details/127792054
*
* @author zlf
*/
@Slf4j
@Configuration(proxyBeanMethods = false)
@ConditionalOnClass({RabbitTemplate.class, Channel.class})
@EnableConfigurationProperties(RabbitConfig.class)
public class ZlfRabbitMqRegistrar implements ImportBeanDefinitionRegistrar, EnvironmentAware, BeanFactoryAware {
private BeanFactory beanFactory;
private RabbitConfig rabbitConfig;
private ExchangeQueueConfig exchangeQueueConfig;
@SneakyThrows
@Override
public void registerBeanDefinitions(AnnotationMetadata annotationMetadata, BeanDefinitionRegistry beanDefinitionRegistry) {
List<RabbitProperties> rps = rabbitConfig.getRps();
if (CollectionUtils.isEmpty(rps)) {
throw new RuntimeException("rabbitMq的rps配置不为空,请检查配置!");
}
log.info("zlf.registerBeanDefinitions:rps.size:{},rps:{}", rps.size(), JSON.toJSONString(rps));
List<ExchangeQueueProperties> eqps = exchangeQueueConfig.getEqps();
if (CollectionUtils.isEmpty(eqps)) {
throw new RuntimeException("rabbitMq的eqps配置不为空,请检查配置!");
}
log.info("zlf.registerBeanDefinitions:eqps.size:{},rps:{}", eqps.size(), JSON.toJSONString(eqps));
for (int i = 0; i < rps.size(); i++) {
this.checkRabbitProperties(rps.get(i));
CachingConnectionFactory cachingConnectionFactory = new CachingConnectionFactory(getRabbitConnectionFactoryBean(rps.get(i)).getObject());
cachingConnectionFactory.setAddresses(rps.get(i).determineAddresses());
cachingConnectionFactory.setPublisherReturns(rps.get(i).getPublisherReturns());
cachingConnectionFactory.setPublisherConfirmType(rps.get(i).getPublisherConfirmType());
Cache.Channel channel = rps.get(i).getCache().getChannel();
if (Objects.nonNull(channel.getSize())) {
cachingConnectionFactory.setChannelCacheSize(channel.getSize());
}
if (Objects.nonNull(channel.getCheckoutTimeout())) {
Duration checkoutTimeout = channel.getCheckoutTimeout();
cachingConnectionFactory.setChannelCheckoutTimeout(checkoutTimeout.toMillis());
}
Connection connection = rps.get(i).getCache().getConnection();
if (Objects.nonNull(connection.getMode())) {
cachingConnectionFactory.setCacheMode(connection.getMode());
}
if (Objects.nonNull(connection.getSize())) {
cachingConnectionFactory.setConnectionCacheSize(connection.getSize());
}
// 注册cachingConnectionFactory的bean
((ConfigurableBeanFactory) this.beanFactory).registerSingleton(CachingConnectionFactory.class.getName() + i, cachingConnectionFactory);
log.info("zlf.ConfigurableBeanFactory注册完成,beanName:{}", CachingConnectionFactory.class.getName() + i);
// 注册RabbitAdmin的bean
RabbitAdmin rabbitAdmin = new RabbitAdmin(cachingConnectionFactory);
((ConfigurableBeanFactory) this.beanFactory).registerSingleton(RabbitAdmin.class.getName() + i, rabbitAdmin);
log.info("zlf.RabbitAdmin注册完成,beanName:{}", RabbitAdmin.class.getName() + i);
//构建发送的RabbitTemplate实例关联连接工厂
Jackson2JsonMessageConverter jackson2JsonMessageConverter = new Jackson2JsonMessageConverter();
RabbitTemplate rabbitTemplate = new RabbitTemplate(cachingConnectionFactory);
rabbitTemplate.setMessageConverter(jackson2JsonMessageConverter);
Template template = rps.get(i).getTemplate();
ConfirmType publisherConfirmType = rps.get(i).getPublisherConfirmType();
log.info("第{}个配置的publisherConfirmType:{}", i, JSON.toJSONString(publisherConfirmType));
//生产者confirm
/**
* publish-confirm-type：开启publisher-confirm，这里支持两种类型：
* simple：【同步】等待confirm结果，直到超时（可能引起代码阻塞）
* correlated：【异步】回调，定义ConfirmCallback，MQ返回结果时会回调这个ConfirmCallback
* publish-returns：开启publish-return功能，同样是基于callback机制，不过是定义ReturnCallback
* template.mandatory：
* 定义当消息从交换机路由到队列失败时的策略。
* 【true，则调用ReturnCallback；false：则直接丢弃消息】
*/
if (ConfirmType.CORRELATED.equals(publisherConfirmType)) {
rabbitTemplate.setConfirmCallback((correlationData, ack, cause) -> {
if (Objects.nonNull(correlationData)) {
if (Objects.nonNull(ack) && ack) {
log.info("消息发送成功->correlationData:{}", JSON.toJSONString(correlationData));
} else if (StringUtils.isNotBlank(cause)) {
log.error("消息->correlationData:{}->发送失败原因->{}", JSON.toJSONString(correlationData), cause);
}
}
if (Objects.nonNull(ack) && ack) {
log.info("消息发送成功ack:{}", ack);
}
if (StringUtils.isNotBlank(cause)) {
log.error("消息发送失败原因->cause:{}", cause);
}
if (Objects.isNull(correlationData) && Objects.isNull(ack) && StringUtils.isEmpty(cause)) {
log.info("消息发送成功,收到correlationData,ack,cause都是null");
}
});
}
Boolean publisherReturns = rps.get(i).getPublisherReturns();
Boolean mandatory = template.getMandatory();
log.info("第{}个配置的publisherReturns:{},mandatory:{}", i, publisherReturns, mandatory);
//消息回调
//开启强制回调
if (mandatory && publisherReturns) {
rabbitTemplate.setMandatory(template.getMandatory());
rabbitTemplate.setMandatoryExpression(new ValueExpression<>(template.getMandatory()));
//设置消息回调
rabbitTemplate.setReturnCallback((message, replyCode, replyText, exchange, routingKey) -> {
log.error("消息->{}路由失败", message);
// 如果有需要的话，重发消息
});
}
Retry retry = rps.get(i).getTemplate().getRetry();
if (retry.isEnabled()) {
RetryTemplate retryTemplate = new RetryTemplate();
SimpleRetryPolicy policy = new SimpleRetryPolicy();
retryTemplate.setRetryPolicy(policy);
policy.setMaxAttempts(retry.getMaxAttempts());
ExponentialBackOffPolicy backOffPolicy = new ExponentialBackOffPolicy();
backOffPolicy.setMultiplier(retry.getMultiplier());
if (Objects.nonNull(retry.getMaxInterval())) {
backOffPolicy.setMaxInterval(retry.getMaxInterval().toMillis());
}
rabbitTemplate.setRetryTemplate(retryTemplate);
}
Duration receiveTimeout = template.getReceiveTimeout();
if (Objects.nonNull(receiveTimeout)) {
rabbitTemplate.setReceiveTimeout(receiveTimeout.toMillis());
}
Duration replyTimeout = template.getReplyTimeout();
if (Objects.nonNull(replyTimeout)) {
rabbitTemplate.setReplyTimeout(replyTimeout.toMillis());
}
String exchange = template.getExchange();
if (StringUtils.isNotBlank(exchange)) {
rabbitTemplate.setExchange(exchange);
}
String routingKey = template.getRoutingKey();
if (StringUtils.isNotBlank(routingKey)) {
rabbitTemplate.setRoutingKey(routingKey);
}
String defaultReceiveQueue = template.getDefaultReceiveQueue();
if (StringUtils.isNotBlank(defaultReceiveQueue)) {
rabbitTemplate.setDefaultReceiveQueue(defaultReceiveQueue);
}
((ConfigurableBeanFactory) this.beanFactory).registerSingleton(RabbitTemplate.class.getName() + i, rabbitTemplate);
log.info("zlf.RabbitTemplate注册完成,beanName:{}", RabbitTemplate.class.getName() + i);
// 不注册RabbitService
RabbitService rabbitService = new RabbitService();
//构建监听工厂实例并注入
ContainerType type = rps.get(i).getListener().getType();
if (ContainerType.SIMPLE.equals(type)) {
Map<String, String> errorExchangeQueueRelationship = this.createErrorExchangeQueueRelationship(String.valueOf(i), rabbitService, rabbitAdmin);
SimpleContainer simple = rps.get(i).getListener().getSimple();
ConstructorArgumentValues cas3 = new ConstructorArgumentValues();
MutablePropertyValues values3 = new MutablePropertyValues();
this.getAmqpContainer(simple, values3, cachingConnectionFactory, jackson2JsonMessageConverter, rabbitTemplate, errorExchangeQueueRelationship);
if (Objects.nonNull(simple.getConcurrency())) {
values3.add("concurrentConsumers", simple.getConcurrency());
}
if (Objects.nonNull(simple.getMaxConcurrency())) {
values3.add("maxConcurrentConsumers", simple.getMaxConcurrency());
}
if (Objects.nonNull(simple.getBatchSize())) {
values3.add("batchSize", simple.getBatchSize());
}
RootBeanDefinition rootBeanDefinition3 = new RootBeanDefinition(SimpleRabbitListenerContainerFactory.class, cas3, values3);
beanDefinitionRegistry.registerBeanDefinition(SimpleRabbitListenerContainerFactory.class.getName() + i, rootBeanDefinition3);
log.info("zlf.SimpleRabbitListenerContainerFactory注册完成,beanName:{}", SimpleRabbitListenerContainerFactory.class.getName() + i);
} else if (ContainerType.DIRECT.equals(type)) {
Map<String, String> errorExchangeQueueRelationship = this.createErrorExchangeQueueRelationship(String.valueOf(i), rabbitService, rabbitAdmin);
DirectContainer direct = rps.get(i).getListener().getDirect();
ConstructorArgumentValues cas4 = new ConstructorArgumentValues();
MutablePropertyValues values4 = new MutablePropertyValues();
this.getAmqpContainer(direct, values4, cachingConnectionFactory, jackson2JsonMessageConverter, rabbitTemplate, errorExchangeQueueRelationship);
if (Objects.nonNull(direct.getConsumersPerQueue())) {
values4.add("consumersPerQueue", direct.getConsumersPerQueue());
}
RootBeanDefinition rootBeanDefinition4 = new RootBeanDefinition(DirectRabbitListenerContainerFactory.class, cas4, values4);
beanDefinitionRegistry.registerBeanDefinition(DirectRabbitListenerContainerFactory.class.getName() + i, rootBeanDefinition4);
log.info("zlf.DirectRabbitListenerContainerFactory注册完成,beanName:{}", DirectRabbitListenerContainerFactory.class.getName() + i);
}
//解析注册交换机、队列和绑定关系
ExchangeQueueProperties exchangeQueueProperties = eqps.get(i);
log.info("zlf.exchangeQueueProperties:{}", JSON.toJSONString(exchangeQueueProperties));
Integer index = exchangeQueueProperties.getIndex();
log.info("zlf.exchangeQueueProperties.index:{}", index);
if (Objects.isNull(index)) {
throw new RuntimeException("exchangeQueueProperties.index不为空");
}
if (Objects.nonNull(exchangeQueueProperties)) {
log.info("zlf.exchangeQueueProperties:{}", JSON.toJSONString(exchangeQueueProperties));
List<ExchangeQueueDto> eqs = exchangeQueueProperties.getEqs();
if (CollectionUtil.isNotEmpty(eqs)) {
for (int k = 0; k < eqs.size(); k++) {
String bindingIndex = index.toString() + k;
log.info("zlf.bindingIndex:{}", bindingIndex);
ExchangeQueueDto exchangeQueueDto = eqs.get(k);
log.info("zlf.exchangeQueueDto:{}", JSON.toJSONString(exchangeQueueDto));
String functionType = exchangeQueueDto.getFunctionType();
log.info("zlf.functionType:{}", functionType);
if (FunctionTypeEnum.NORMAL.getFunctionType().equals(functionType)) {
this.createRelationship(FunctionTypeEnum.NORMAL, exchangeQueueDto, rabbitService, rabbitAdmin, bindingIndex, false);
} else if (FunctionTypeEnum.DELAY.getFunctionType().equals(functionType)) {
Integer delayType = exchangeQueueDto.getDelayType();
log.info("zlf.delayType:{}", delayType);
if (DelayTypeEnum.ONE.getDelayType().equals(delayType)) {
//延迟插件实现延迟队列
String exchangeType = exchangeQueueDto.getExchangeType();
if (!ExchangeTypeEnum.CUSTOM.getExchangeType().equals(exchangeType)) {
throw new RuntimeException("延迟插件实现延迟队列交换机类型exchangeType必须定义为:custom");
}
this.createRelationship(FunctionTypeEnum.DELAY, exchangeQueueDto, rabbitService, rabbitAdmin, bindingIndex, false);
} else if (DelayTypeEnum.TWO.getDelayType().equals(delayType)) {
//TTL + 死信队列实现延迟队列
this.createRelationship(FunctionTypeEnum.DELAY, exchangeQueueDto, rabbitService, rabbitAdmin, bindingIndex, false);
} else if (DelayTypeEnum.THREE.getDelayType().equals(delayType)) {
//延迟交换机 + 消息设置setHeader("x-delay", xxx)
this.createRelationship(FunctionTypeEnum.DELAY, exchangeQueueDto, rabbitService, rabbitAdmin, bindingIndex, true);
}
}
}
}
}
}
}
/**
* 检查rabbitProperties配置的主要参数
*
* @param rabbitProperties
*/
private void checkRabbitProperties(RabbitProperties rabbitProperties) {
String virtualHost = rabbitProperties.getVirtualHost();
if (StringUtils.isEmpty(virtualHost)) {
throw new RuntimeException("RabbitProperties.virtualHost不为空");
}
String addresses = rabbitProperties.getAddresses();
if (StringUtils.isEmpty(addresses)) {
throw new RuntimeException("RabbitProperties.addresses不为空");
}
Integer port = rabbitProperties.getPort();
if (Objects.isNull(port)) {
throw new RuntimeException("RabbitProperties.port不为空");
}
String username = rabbitProperties.getUsername();
if (StringUtils.isEmpty(username)) {
throw new RuntimeException("RabbitProperties.username不为空");
}
String password = rabbitProperties.getPassword();
if (StringUtils.isEmpty(password)) {
throw new RuntimeException("RabbitProperties.password不为空");
}
}
/**
* 创建关系
*
* @param functionTypeEnum
* @param exchangeQueueDto
* @param rabbitService
* @param rabbitAdmin
* @param bindingIndex
*/
private void createRelationship(FunctionTypeEnum functionTypeEnum, ExchangeQueueDto exchangeQueueDto, RabbitService rabbitService, RabbitAdmin rabbitAdmin, String bindingIndex, Boolean isDelayed) {
String exchangeName = exchangeQueueDto.getExchangeName();
String exchangeType = exchangeQueueDto.getExchangeType();
HashMap<String, Object> exchangeArgs = exchangeQueueDto.getExchangeArgs();
log.info("zlf" + functionTypeEnum.getFunctionType() + ".exchangeName:{},exchangeType:{},exchangeArgs:{}", exchangeName, exchangeType, JSON.toJSONString(exchangeArgs));
AbstractExchange exchange1 = rabbitService.createExchange(rabbitAdmin, exchangeName, exchangeType, exchangeArgs, isDelayed);
exchangeName = exchangeName + bindingIndex;
((ConfigurableBeanFactory) this.beanFactory).registerSingleton(exchangeName, exchange1);
log.info("zlf." + functionTypeEnum.getFunctionType() + ".Exchange注册完成,beanName:{}", exchangeName);
String queueName = exchangeQueueDto.getQueueName();
HashMap<String, Object> queueArgs = exchangeQueueDto.getQueueArgs();
String routingKey1 = exchangeQueueDto.getRoutingKey();
log.info("zlf." + functionTypeEnum.getFunctionType() + ".queueName:{},queueArgs:{},routingKey1:{}", queueName, JSON.toJSONString(queueArgs), routingKey1);
Queue queue = rabbitService.createQueue(rabbitAdmin, queueName, queueArgs);
queueName = queueName + bindingIndex;
((ConfigurableBeanFactory) this.beanFactory).registerSingleton(queueName, queue);
log.info("zlf." + functionTypeEnum.getFunctionType() + ".Queue注册完成,beanName:{}", queueName);
Binding binding = rabbitService.binding(rabbitAdmin, exchange1, queue, routingKey1);
((ConfigurableBeanFactory) this.beanFactory).registerSingleton(Binding.class.getName() + bindingIndex, binding);
log.info("zlf." + functionTypeEnum.getFunctionType() + ".Binding注册完成bindingIndex:{},beanName:{}", bindingIndex, Binding.class.getName() + bindingIndex);
Integer delayType = exchangeQueueDto.getDelayType();
if (DelayTypeEnum.TWO.getDelayType().equals(delayType)) {
String dlxExchangeName = exchangeQueueDto.getDlxExchangeName();
if (StringUtils.isEmpty(dlxExchangeName)) {
throw new RuntimeException("TTL + 死信队列实现延迟队列配置参数dlxExchangeName不为空!");
}
String dlxExchangeType = exchangeQueueDto.getDlxExchangeType();
if (StringUtils.isEmpty(dlxExchangeType)) {
throw new RuntimeException("TTL + 死信队列实现延迟队列配置参数dlxExchangeType不为空!");
}
AbstractExchange exchange2 = rabbitService.createExchange(rabbitAdmin, dlxExchangeName, dlxExchangeType, exchangeArgs, false);
dlxExchangeName = dlxExchangeName + bindingIndex;
((ConfigurableBeanFactory) this.beanFactory).registerSingleton(dlxExchangeName, exchange2);
log.info("zlf.TTL + 死信队列实现延迟队列,死信交换机注册完成,beanName:{}", dlxExchangeName);
String dlxQueueName = exchangeQueueDto.getDlxQueueName();
Queue queue2 = rabbitService.createQueue(rabbitAdmin, dlxQueueName, null);
dlxQueueName = dlxQueueName + bindingIndex;
((ConfigurableBeanFactory) this.beanFactory).registerSingleton(dlxQueueName, queue2);
log.info("zlf.TTL + 死信队列实现延迟队列,死信队列注册完成,beanName:{}", dlxQueueName);
String dlxKey = exchangeQueueDto.getDlxKey();
Binding binding2 = rabbitService.binding(rabbitAdmin, exchange2, queue2, dlxKey);
String dlxBeanName = "dlx" + Binding.class.getName() + bindingIndex + 1;
((ConfigurableBeanFactory) this.beanFactory).registerSingleton(dlxBeanName, binding2);
log.info("zlf.TTL + 死信队列实现延迟队列,死信交换机绑定队列的绑定关系注册完成,beanName:{}", dlxBeanName);
}
}
private Map<String, String> createErrorExchangeQueueRelationship(String index, RabbitService rabbitService, RabbitAdmin rabbitAdmin) {
Map<String, String> resultMap = new HashMap<>();
String exchangeName = ErrorExchangeQueueInfo.ERROR_EXCHANGE_PREFIX + index;
AbstractExchange exchange = rabbitService.createExchange(rabbitAdmin, exchangeName, ErrorExchangeQueueInfo.ERROR_EXCHANGE_TYPE, null, false);
((ConfigurableBeanFactory) this.beanFactory).registerSingleton(exchangeName, exchange);
log.info("zlf.ErrorExchange注册完成,beanName:{}", exchangeName);
String queueName = ErrorExchangeQueueInfo.ERROR_QUEUE_PREFIX + index;
Queue queue = rabbitService.createQueue(rabbitAdmin, queueName, null);
((ConfigurableBeanFactory) this.beanFactory).registerSingleton(queueName, queue);
log.info("zlf.ErrorQueue注册完成,beanName:{}", queueName);
String errorRoutingKey = ErrorExchangeQueueInfo.ERROR_KEY_PREFIX + index;
log.info("zlf.errorRoutingKey:{}", errorRoutingKey);
Binding errorBinding = rabbitService.binding(rabbitAdmin, exchange, queue, errorRoutingKey);
String errorBingBeanName = ErrorExchangeQueueInfo.ERROR_BINDING_BANE_NAME_PREFIX + Binding.class.getSimpleName() + index;
((ConfigurableBeanFactory) this.beanFactory).registerSingleton(errorBingBeanName, errorBinding);
log.info("zlf.ErrorBing注册完成,beanName:{}", errorBingBeanName);
resultMap.put("errorExchange", exchangeName);
resultMap.put("errorRoutingKey", errorRoutingKey);
return resultMap;
}
private void getAmqpContainer(AmqpContainer amqpContainer, MutablePropertyValues values, CachingConnectionFactory cachingConnectionFactory, Jackson2JsonMessageConverter jackson2JsonMessageConverter, RabbitTemplate rabbitTemplate, Map<String, String> errorExchangeQueueRelationship) {
values.add("connectionFactory", cachingConnectionFactory);
values.add("autoStartup", amqpContainer.isAutoStartup());
values.add("messageConverter", jackson2JsonMessageConverter);
if (Objects.nonNull(amqpContainer.getAcknowledgeMode())) {
values.add("acknowledgeMode", amqpContainer.getAcknowledgeMode());
}
if (Objects.nonNull(amqpContainer.getPrefetch())) {
values.add("prefetch", amqpContainer.getPrefetch());
}
if (Objects.nonNull(amqpContainer.getDefaultRequeueRejected())) {
values.add("defaultRequeueRejected", amqpContainer.getDefaultRequeueRejected());
}
if (Objects.nonNull(amqpContainer.getIdleEventInterval())) {
values.add("idleEventInterval", amqpContainer.getIdleEventInterval());
}
values.add("missingQueuesFatal", amqpContainer.isMissingQueuesFatal());
ListenerRetry retry2 = amqpContainer.getRetry();
if (retry2.isEnabled()) {
RetryInterceptorBuilder<?, ?> builder = (retry2.isStateless()) ? RetryInterceptorBuilder.stateless()
: RetryInterceptorBuilder.stateful();
RetryTemplate retryTemplate = new RetryTemplate();
SimpleRetryPolicy policy = new SimpleRetryPolicy();
retryTemplate.setRetryPolicy(policy);
policy.setMaxAttempts(retry2.getMaxAttempts());
ExponentialBackOffPolicy backOffPolicy = new ExponentialBackOffPolicy();
backOffPolicy.setMultiplier(retry2.getMultiplier());
if (Objects.nonNull(retry2.getMaxInterval())) {
backOffPolicy.setMaxInterval(retry2.getMaxInterval().toMillis());
}
builder.retryOperations(retryTemplate);
/**
* 在开启重试模式后，重试次数耗尽，如果消息依然失败，则需要有MessageRecovery接口来处理，它包含三种不同的实现：
*
* RejectAndDontRequeueRecoverer：重试耗尽后，直接reject，【丢弃消息】【默认】就是这种方式
* ImmediateRequeueMessageRecoverer：重试耗尽后，返回nack，消息重新入队（Immediate立刻重入队）（但是频率比没有配置消费失败重载机制低一些）
* RepublishMessageRecoverer（推荐）：重试耗尽后，将失败消息投递到指定的交换机
*/
//消息接受拒绝后发送到异常队列
String errorExchange = errorExchangeQueueRelationship.get("errorExchange");
String errorRoutingKey = errorExchangeQueueRelationship.get("errorRoutingKey");
MessageRecoverer recoverer = new RepublishMessageRecoverer(rabbitTemplate, errorExchange, errorRoutingKey);
log.info("zlf.MessageRecoverer.errorExchange:{},errorRoutingKey:{}", errorExchange, errorRoutingKey);
builder.recoverer(recoverer);
values.add("adviceChain", builder.build());
}
}
private RabbitConnectionFactoryBean getRabbitConnectionFactoryBean(RabbitProperties properties)
throws Exception {
PropertyMapper map = PropertyMapper.get();
RabbitConnectionFactoryBean factory = new RabbitConnectionFactoryBean();
map.from(properties::determineHost).whenNonNull().to(factory::setHost);
map.from(properties::determinePort).to(factory::setPort);
map.from(properties::determineUsername).whenNonNull().to(factory::setUsername);
map.from(properties::determinePassword).whenNonNull().to(factory::setPassword);
map.from(properties::determineVirtualHost).whenNonNull().to(factory::setVirtualHost);
map.from(properties::getRequestedHeartbeat).whenNonNull().asInt(Duration::getSeconds)
.to(factory::setRequestedHeartbeat);
map.from(properties::getRequestedChannelMax).to(factory::setRequestedChannelMax);
RabbitProperties.Ssl ssl = properties.getSsl();
if (ssl.determineEnabled()) {
factory.setUseSSL(true);
map.from(ssl::getAlgorithm).whenNonNull().to(factory::setSslAlgorithm);
map.from(ssl::getKeyStoreType).to(factory::setKeyStoreType);
map.from(ssl::getKeyStore).to(factory::setKeyStore);
map.from(ssl::getKeyStorePassword).to(factory::setKeyStorePassphrase);
map.from(ssl::getTrustStoreType).to(factory::setTrustStoreType);
map.from(ssl::getTrustStore).to(factory::setTrustStore);
map.from(ssl::getTrustStorePassword).to(factory::setTrustStorePassphrase);
map.from(ssl::isValidateServerCertificate)
.to((validate) -> factory.setSkipServerCertificateValidation(!validate));
map.from(ssl::getVerifyHostname).to(factory::setEnableHostnameVerification);
}
map.from(properties::getConnectionTimeout).whenNonNull().asInt(Duration::toMillis)
.to(factory::setConnectionTimeout);
factory.afterPropertiesSet();
return factory;
}
@Override
public void setEnvironment(Environment environment) {
// 通过Binder将environment中的值转成对象
rabbitConfig = Binder.get(environment).bind(getPropertiesPrefix(RabbitConfig.class), RabbitConfig.class).get();
exchangeQueueConfig = Binder.get(environment).bind(getPropertiesPrefix(ExchangeQueueConfig.class), ExchangeQueueConfig.class).get();
}
private String getPropertiesPrefix(Class<?> tClass) {
return Objects.requireNonNull(AnnotationUtils.getAnnotation(tClass, ConfigurationProperties.class)).prefix();
}
@Override
public void setBeanFactory(BeanFactory beanFactory) throws BeansException {
this.beanFactory = beanFactory;
}
}
4.总结
到此，手写rabbitMq的starter实现思路就已经全部分享完了，思路比代码更重要，代码只是一个参考，用这个思路实现更多更方便简单快捷高效的轮子，制造轮子也是一种提升和给你带来成就感的事情，累并快乐着，后面我会将我之前手写的starter全部开源出来，然后将gitHub或码云地址分享给大家，制造轮子，开源给大家使用，这本身就是一种开源的精神和乐趣，Java生态最缺的就不是轮子是好用的轮子，请在看我的文章或者是转发，请把本文的原出处和作者写上去，尊重版权，创作不易，禁止原模原样的搬过去就是自己的原创，这种是不道德的行为，见到请如实举报，或者联系本作者来举报，这个starter,说实话也是构思酝酿了好久，猛干了2-3天才干出来，颈椎都干的酸，我得休息加强锻炼身体了，说实话写这个starter还是挺累的，但是搞出来的成就感满满，也方便以后集成快速使用，配置多个的rabbitMq服务器也测试过了的，也是ok的，但是配置一个rabbitMq和多个交换机、队列和绑定关系以及3种延迟队列实现是亲自测试OK的，希望我的分享能给你帮助和启发，请一键三连，么么么哒！文章来源地址https://www.toymoban.com/news/detail-850011.html
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