消息中间件太多了,学习不同消息中间件浪费大量时间,需要一个东西可以再不同场景中切换消息中间件。
-只支持rabbitmp和kfaka
生产消息发送到消息中间件
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-stream-rabbit</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-eureka-server -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>com.atguigu.springcloud</groupId>
<artifactId>cloud-api-commons</artifactId>
<version>${project.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-devtools -->
<!-- <dependency>-->
<!-- <groupId>org.springframework.boot</groupId>-->
<!-- <artifactId>spring-boot-devtools</artifactId>-->
<!-- <scope>runtime</scope>-->
<!-- <optional>true</optional>-->
<!-- </dependency>-->
<!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-test -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
server:
port: 8801
spring:
application:
name: cloud-stream-provider
cloud:
stream:
binders: # 在此处配置要绑定的rabbitmq的服务信息;
defaultRabbit: # 表示定义的名称,用于于binding整合
type: rabbit # 消息组件类型
environment: # 设置rabbitmq的相关的环境配置
spring:
rabbitmq:
host: localhost
port: 5672
username: guest
password: guest
bindings: # 服务的整合处理
output: # 这个名字是一个通道的名称
destination: studyExchange # 表示要使用的Exchange名称定义
content-type: application/json # 设置消息类型,本次为json,文本则设置“text/plain”
binder: defaultRabbit # 设置要绑定的消息服务的具体设置
eureka:
client: # 客户端进行Eureka注册的配置
service-url:
defaultZone: http://localhost:7001/eureka
# instance:
# lease-renewal-interval-in-seconds: 2 # 设置心跳的时间间隔(默认是30秒)
# lease-expiration-duration-in-seconds: 5 # 如果现在超过了5秒的间隔(默认是90秒)
# instance-id: send-8801.com # 在信息列表时显示主机名称
# prefer-ip-address: true # 访问的路径变为IP地址
注意这里:binders: # 在此处配置要绑定的rabbitmq的服务信息;
defaultRabbit: # 表示定义的名称,用于于binding整合
type: rabbit # 消息组件类型
package com.pack.mymodel.controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.annotation.Resource;
@RestController
public class sendMeesgaController {
@Resource
private IMessageProviderService messageProviderService;
@GetMapping(value = "/sendMessage")
public String sendMessage() {
return messageProviderService.send();
}
}
接口
public interface IMessageProviderService {
/**
* 定义消息的推送管道
*
* @return
*/
String send();
}
实现类
package com.pack.mymodel.services.Imp;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.messaging.Source;
import org.springframework.integration.support.MessageBuilder;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageChannel;
import javax.annotation.Resource;
import java.util.UUID;
/**
* @author lixiaolong
* @EnableBinding(Source.class) 定义消息的推送管道 将Channel和Exchanges绑定在一起
* @date 2020/12/31 13:35
*/
/*
*/
@EnableBinding(Source.class)
public class MessageProviderImp implements IMessageProviderService {
/**
* 消息发送管道/信道
*/
@Resource
private MessageChannel output;
@Override
public String send() {
String serial = UUID.randomUUID().toString();
//MessageBuilder.withPayload(serial).build();
Message<String> stringMessage = MessageBuilder.withPayload(serial).build();
output.send(stringMessage);
System.out.println("*****serial: " + serial);
return serial;
}
}
package com.pack.mymodel.controller;
import com.pack.mymodel.services.Imp.IMessageProviderService;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.annotation.Resource;
@RestController
public class sendMeesgaController {
@Resource
private IMessageProviderService messageProviderService;
@GetMapping(value = "/sendMessage")
public String sendMessage() {
return messageProviderService.send();
}
}
server:
port: 8802
spring:
application:
name: cloud-stream-consumer
cloud:
stream:
binders: # 在此处配置要绑定的rabbitmq的服务信息;
defaultRabbit: # 表示定义的名称,用于于binding整合
type: rabbit # 消息组件类型
environment: # 设置rabbitmq的相关的环境配置
spring:
rabbitmq:
host: localhost
port: 5672
username: guest
password: guest
bindings: # 服务的整合处理
input: # 这个名字是一个通道的名称
destination: studyExchange # 表示要使用的Exchange名称定义
content-type: application/json # 设置消息类型,本次为json,文本则设置“text/plain”
binder: defaultRabbit # 设置要绑定的消息服务的具体设置
eureka:
client: # 客户端进行Eureka注册的配置
service-url:
defaultZone: http://localhost:7001/eureka
# instance:
# lease-renewal-interval-in-seconds: 2 # 设置心跳的时间间隔(默认是30秒)
# lease-expiration-duration-in-seconds: 5 # 如果现在超过了5秒的间隔(默认是90秒)
# instance-id: receive-8802.com # 在信息列表时显示主机名称
# prefer-ip-address: true # 访问的路径变为IP地址
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.annotation.StreamListener;
import org.springframework.cloud.stream.messaging.Sink;
import org.springframework.messaging.Message;
import org.springframework.stereotype.Component;
/**
* 8802 接收消息
*
* @author lixiaolong
* @date 2020/12/31 14:07
*/
@Component
@EnableBinding(Sink.class)
public class mycontroller {
@Value("${server.port}")
private String serverPort;
@StreamListener(Sink.INPUT)
//从消息队列中取出消息
public void input(Message<String> message) {
System.out.println("port:" + serverPort + "\t接受:" + message.getPayload());
}
}
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
/**
* @author lixiaolong
* @date 2020/12/18 16:05
* @description 支付服务
*/
@SpringBootApplication
public class bootMAin {
public static void main(String[] args) {
SpringApplication.run(bootMAin.class, args);
System.out.println("启动成功");
}
}
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-stream-rabbit</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-eureka-server -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-devtools -->
<!-- <dependency>-->
<!-- <groupId>org.springframework.boot</groupId>-->
<!-- <artifactId>spring-boot-devtools</artifactId>-->
<!-- <scope>runtime</scope>-->
<!-- <optional>true</optional>-->
<!-- </dependency>-->
<!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-test -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
当多个消费者存在的时候,每个消费者都会消费消息,造成消息的重复消费。