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目录环境搭建1.我们首先做好服务端2.启动服务端3.我们再来做客户端4.总结环境搭建 项目结构图: 1.我们首先做好服务端 pom.xml <dependencies&
项目结构图:
pom.xml
<dependencies>
<!--导入依赖:dubbo + ZooKeeper-->
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-spring-boot-starter</artifactId>
<version>2.7.3</version>
</dependency>
<!--引入zkclient-->
<dependency>
<groupId>com.GitHub.sgroschupf</groupId>
<artifactId>zkclient</artifactId>
<version>0.1</version>
</dependency>
<!--引入zkclient,可能会日志冲突,还需要剔除日志依赖-->
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-framework</artifactId>
<version>2.12.0</version>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-recipes</artifactId>
<version>2.12.0</version>
</dependency>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.4.14</version>
<!--排除这个slf4j-log4j12-->
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-WEB</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
application.properties
server.port=8001
# 服务应用名字
dubbo.application.name=provider-server
# 注册中心地址
dubbo.reGIStry.address=zookeeper://127.0.0.1:2181
# 哪些服务要被注册
dubbo.scan.base-packages=com.wlm.service
TicketService
package com.wlm.service;
public interface TicketService {
public String getTicket();
}
TicketServiceImpl.java
package com.wlm.service;
import org.apache.dubbo.config.annotation.Service;
import org.springframework.stereotype.Component;
//zookeeper:服务注册与发现
@Service //可以被扫描到,在项目一启动就自动注册到注册中心
@Component //使用了Dubbo后尽量不要用Service注解
public class TicketServiceImpl implements TicketService {
@Override
public String getTicket() {
return "咸鱼_翻身";
}
}
打开服务端,开启之后不要点掉,让他在后台运行:
运行上面的服务端代码,然后去游览器中查看
Http://localhost:7001/
pom.xml
<dependencies>
<!--导入相关的依赖-->
<!--导入依赖:Dubbo + zookeeper-->
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-spring-boot-starter</artifactId>
<version>2.7.3</version>
</dependency>
<!--引入zkclient-->
<dependency>
<groupId>com.github.sgroschupf</groupId>
<artifactId>zkclient</artifactId>
<version>0.1</version>
</dependency>
<!--引入zkclient,可能会日志冲突,还需要剔除日志依赖-->
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-framework</artifactId>
<version>2.12.0</version>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-recipes</artifactId>
<version>2.12.0</version>
</dependency>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.4.14</version>
<!--排除这个slf4j-log4j12-->
<exclusions>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
application.properties
server.port=8002
# 消费者去哪里拿服务,需要暴露自己的名字
dubbo.application.name=consumer-server
# 注册中心的地址,可以在任何电脑上!
dubbo.registry.address=zookeeper://127.0.0.1:2181
TicketService
package com.wlm.service;
public interface TicketService {
public String getTicket();
}
UserService.java
package com.wlm.service;
import org.apache.dubbo.config.annotation.Reference;
import org.springframework.stereotype.Service;
@Service //放到容器中,注意区分
public class UserService {
//想拿到provider-server提供的票,要去注册中心拿到服务
@Reference //引用, pom坐标,可以定义路径相同的接口名
TicketService ticketService;
public void buyTicket(){
String ticket = ticketService.getTicket();
System.out.println("在注册中心拿到=>"+ticket);
}
}
ConsumerServerApplicationTests.java
package com.wlm;
import com.wlm.service.UserService;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
@SpringBootTest
class ConsumerServerApplicationTests {
@Autowired
UserService userService;
@Test
void contextLoads() {
userService.buyTicket();
}
}
运行ConsumerServerApplicationTests.java结果:拿到服务端的”咸鱼_翻身“
前提:zookeeper服务已经开启
1.首先提供者提供服务
2.消费者如何消费
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