疑问
这里配置生产者、消费者 每一个都需要在yml配置，看起来很复杂，不知道有没有简单的配置方法
pom 添加依赖
方式一
<!--cloud rabbitMq 依赖-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-stream-binder-rabbit</artifactId>
<version>4.1.0</version>
</dependency>方式二
<!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-stream-rabbit -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-stream-rabbit</artifactId>
<version>4.1.0</version>
</dependency>yml 配置文件
rabbitmq 配置
spring:
cloud:
stream:
binders:
rabbit:
type: rabbit
environment: #配置rabbitmq连接环境
spring:
rabbitmq:
host: ip
username: admin
password: admin
virtual-host: my_vhost这里我把生产者 消费者放在一个项目测试，可以在不同想目放生产者、消费者
消费者 配置
spring:
cloud:
stream:
bindings:
# in 消费者
test-in-0:
content-type: application/json
destination: test-destination
group: test-group
binder: rabbit
test1-in-0:
content-type: application/json
destination: test1-destination
group: test1-group
binder: rabbit
test2-in-0:
content-type: application/json
destination: test2-destination
group: test2-group # 队列
binder: rabbit
function:
definition: test;test1;test2消费者
@Component
public class ConsumerTest {
/**
* 注意方法名称 demo 要与配置文件中的spring.cloud.stream.bindings.demo-in-0 保持一致
* 其中 -in-0 是固定写法，in 标识消费者类型，0是消费者索引
*/
@Bean
public Consumer<Person> test() {
return person -> {
System.out.println("Received: " + person);
};
}
@Bean
public Consumer<String> test1() {
return msg -> {
System.out.println("Received: " + msg);
};
}
@Bean
public Consumer<Person> test2() {
return msg -> {
System.out.println("Received: " + msg);
};
}
}
public class Person {
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String toString() {
return this.name;
}
}启动后可以在 rabbitmq 控制台看到 生成的 topic、 queue
配置生产者
yml
spring:
cloud:
stream:
bindings:
# 生产者
test-out-0:
content-type: application/json
destination: test-destination # topic
binder: rabbit
test1-out-0:
content-type: application/json
destination: test1-destination
binder: rabbit
test2-out-0:
content-type: application/json
destination: test2-destination
binder: rabbit测试代码
package com.example.demorabbit;
import lombok.RequiredArgsConstructor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.stream.function.StreamBridge;
import org.springframework.messaging.Message;
import org.springframework.messaging.support.MessageBuilder;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
@RequiredArgsConstructor
public class ProducerController {
private final StreamBridge streamBridge;
@GetMapping("sendMsg")
public String sendMsg(int delay, String name) {
Person person = new Person();
person.setName(name);
// Message<SpringcloudstreamDemo1Application.Person> message = MessageBuilder.withPayload(person)
// .setHeader("x-delay", delay).build();
// // 发送延时消息
// streamBridge.send("demo2-out-0", message);
streamBridge.send("test1-out-0", person);
streamBridge.send("test-out-0", person);
return "发送成功";
}
}测试发送消息
http://localhost:5656/sendMsg?delay=10000&name=zhangsan
发送接收成功
