How to realize distributed Development and Application by springBoot+dubbo+zookeeper
Editor to share with you springBoot+dubbo+zookeeper how to achieve distributed development applications, I hope you will learn something after reading this article, let's discuss it together!
Environment building
Project structure diagram:
1. First of all, let's do a good job of the server.
Pom.xml
Org.apache.dubbo dubbo-spring-boot-starter 2.7.3 com.github.sgroschupf zkclient 0.1 org.apache.curator curator-framework 2.12.0 org.apache. Curator curator-recipes 2.12.0 org.apache.zookeeper zookeeper 3.4.14 org.slf4j slf4j-log4j12 Org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-test test
Application.properties
Server.port=8001# service application name dubbo.application.name=provider-server# registry address dubbo.registry.address=zookeeper://127.0.0.1:2181# which services are to be registered 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: service registration and discovery @ Service / / can be scanned. Try not to use Service to annotate public class TicketServiceImpl implements TicketService {@ Override public String getTicket () {return "salted fish _ turn over";}} 2. Start the server
Open the server, do not click on it, and let it run in the background:
Execute the jar package on the server side. We need to monitor the server side later:
Run the server code above, and then check it in the browser
Http://localhost:7001/
3. Let's do the client again.
Pom.xml
Org.apache.dubbo dubbo-spring-boot-starter 2.7.3 com.github.sgroschupf zkclient 0.1 org.apache.curator curator-framework 2.12.0 org.apache. Curator curator-recipes 2.12.0 org.apache.zookeeper zookeeper 3.4.14 org.slf4j slf4j-log4j12 Org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-test test
Application.properties
Server.port=8002# consumers where to get services, need to expose their name dubbo.application.name=consumer-server# registry address, can be on any computer! 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 / / put into the container, pay attention to distinguish between public class UserService {/ / if you want to get the ticket provided by provider-server, to go to the registry to get the service @ Reference / / reference, pom coordinates, you can define the same path of the interface name TicketService ticketService; public void buyTicket () {String ticket = ticketService.getTicket () System.out.println ("get in the registry = >" + 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;@SpringBootTestclass ConsumerServerApplicationTests {@ Autowired UserService userService; @ Test void contextLoads () {userService.buyTicket ();}
Run ConsumerServerApplicationTests.java result: get the "salted fish _ turn over" from the server
4. Summary
Premise: the zookeeper service has been enabled
1. First, the provider provides services.
Import dependency
Configure the address of the registry, as well as the service discovery name, and the package to scan
Add an annotation @ Service to the service you want to register
two。 How consumers spend
Import dependency
Configure the address of the registry and configure your own service name
Remotely inject the service @ Reference
After reading this article, I believe you have a certain understanding of "how springBoot+dubbo+zookeeper implements distributed development applications". If you want to know more about it, you are welcome to follow the industry information channel. Thank you for your reading!
