网站一年域名费用多少钱wordpress球形标签
0、知识点
1、创建项目-生产者
默认官方start.spring.io已不支持自动生成低版本jkd的Spring项目，自定义用阿里云的starter即可：https://start.aliyun.com
2、创建配置类
package com.wym.rabbitmqprovider.utils;import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.BindingBuilder;
import org.springframework.amqp.core.DirectExchange;
import org.springframework.amqp.core.Queue;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;@Configuration
public class DirectRabbitConfig {//队列 起名：TestDirectQueue@Beanpublic Queue TestDirectQueue() {// durable:是否持久化,默认是false,持久化队列：会被存储在磁盘上，当消息代理重启时仍然存在，暂存队列：当前连接有效// exclusive:默认也是false，只能被当前创建的连接使用，而且当连接关闭后队列即被删除。此参考优先级高于durable// autoDelete:是否自动删除，当没有生产者或者消费者使用此队列，该队列会自动删除。// return new Queue("TestDirectQueue",true,true,false);//一般设置一下队列的持久化就好,其余两个就是默认falsereturn new Queue("TestDirectQueue",true);}//Direct交换机 起名：TestDirectExchange@BeanDirectExchange TestDirectExchange() {// return new DirectExchange("TestDirectExchange",true,true);return new DirectExchange("TestDirectExchange",true,false);}//绑定 将队列和交换机绑定, 并设置用于匹配键：TestDirectRouting@BeanBinding bindingDirect() {return BindingBuilder.bind(TestDirectQueue()).to(TestDirectExchange()).with("TestDirectRouting");}@BeanDirectExchange lonelyDirectExchange() {return new DirectExchange("lonelyDirectExchange");}}
3、创建消息发送接口
package com.wym.rabbitmqprovider.controller;import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;@RestController
public class SendMessageController {@AutowiredRabbitTemplate rabbitTemplate; //使用RabbitTemplate,这提供了接收/发送等等方法@GetMapping("/sendDirectMessage")public String sendDirectMessage() {String messageId = String.valueOf(UUID.randomUUID());String messageData = "test message, hello!";String createTime = LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"));Map<String,Object> map=new HashMap<>();map.put("messageId",messageId);map.put("messageData",messageData);map.put("createTime",createTime);//将消息携带绑定键值：TestDirectRouting 发送到交换机TestDirectExchangerabbitTemplate.convertAndSend("TestDirectExchange", "TestDirectRouting", map);return "ok";}
}
4、使用postapi测试
5、查看客户端
queues中也有了
6、补充：导包、yml配置
<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-amqp</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency>server:port: 8081
spring:#给项目来个名字application:name: rabbitmq-provider#配置rabbitMq 服务器rabbitmq:host: 127.0.0.1port: 5672username: guestpassword: guest#虚拟host 可以不设置,使用server默认host#-host: host