Attachment: Nacos documentation
Attached: [github] nacos download address
ps: downloading the nacos installation package directly from github will be particularly slow. The online host modification method has been used, and it has no effect. It is recommended to use a VPN or use someone else has downloaded it;
Attached: [csdn] nacos-server-1.1.0.tar.gz
tar -zxvf nacos-server-1.1.0.tar.gz 解压
cd nacos
cd bin
sh startup.sh -m standalone 启动
The following figure appears, indicating successful startup.
Log http://192.168.101.16:8848/nacos /index.html , and enter the account password; both nacos . The following interface appears;
Note: The version corresponds to:
Project structure:
1. Module: alibaba-nacos-discovery-server:
Control layer:
package com.lucifer.demo.controller;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
/**
* @author: lucifer
* @date: 2019/8/6
* @description:
*/
@Slf4j
@RestController
public class TestController {
@GetMapping("/hello/{name}")
public String hello(@PathVariable(name = "name") String name) {
log.info("invoked name = " + name);
return "hello " + name;
}
}
springboot startup class: (ps: @EnableDiscoveryClient
open service registration discovery function)
package com.lucifer.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
/**
* @author Lucifer
*/
@EnableDiscoveryClient
@SpringBootApplication
public class AlibabaNacosDiscoveryServerApplication {
public static void main(String[] args) {
SpringApplication.run(AlibabaNacosDiscoveryServerApplication.class, args);
}
}
springboot configuration file:
spring:
application:
name: service-provider
cloud:
nacos:
discovery:
server-addr: 192.168.101.16:8848
server:
port: 8001
pom.xml: (main jar package)
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.6.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Greenwich.SR1</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-alibaba-dependencies</artifactId>
<version>0.2.2.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
start up:
2. Module: alibaba-nacos-discovery-client
1》 springboot startup class: same as alibaba-nacos-discovery-server startup class, plus @EnableDiscoveryClient;
2》 Configuration file:
spring:
application:
name: service-consumer
cloud:
nacos:
discovery:
server-addr: 192.168.101.16:8848
server:
port: 8080
3》 pom.xml Same as above
Control layer:
package com.lucifer.alibabanacosdiscoveryclient.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.context.annotation.Bean;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;
/**
* @author: lucifer
* @date: 2019/8/6
* @description:
*/
@EnableDiscoveryClient
@RestController
public class TestController {
@LoadBalanced
@Bean
public RestTemplate restTemplate() {
return new RestTemplate();
}
@Autowired
private RestTemplate restTemplate;
@GetMapping(value = "/hello/{str}")
public String echo(@PathVariable(name = "str") String str) {
return restTemplate.getForObject("http://service-provider/hello/" + str, String.class);
}
}
start up:
Visit http://192.168.101.16:8848/nacos/ again ;
postman test:
1.localhost:8080/hello/zhangsan
2.localhost:8001/hello/zhangsan
ps:
Enter the service details, click on the offline, as shown in the figure:
Go to the interface again: the service provider has no instances available
Click online again, wait a few seconds-a dozen seconds, and then visit the interface again: normal;