# 输出示例：
ok

# 使用Java SDK注册服务
import com.alibaba.nacos.api.NacosFactory;
import com.alibaba.nacos.api.naming.NamingService;
import com.alibaba.nacos.api.naming.pojo.Instance;

public class ServiceRegister {
public static void main(String[] args) throws Exception {
NamingService naming = NacosFactory.createNamingService(“192.168.1.51:8848”);
naming.registerInstance(“fgedu-service”, “192.168.1.100”, 8080);
}
}

# 查看服务列表
$ curl “http://192.168.1.51:8848/nacos/v1/ns/service/list?pageNo=1&pageSize=10”

# 输出示例：
{
“count”: 1,
“doms”: [“fgedu-service”]
}

# 输出示例：
{
“name”: “DEFAULT_GROUP@@fgedu-service”,
“groupName”: “DEFAULT_GROUP”,
“clusters”: “”,
“cacheMillis”: 10000,
“hosts”: [
{
“instanceId”: “192.168.1.100#8080#DEFAULT#DEFAULT_GROUP@@fgedu-service”,
“ip”: “192.168.1.100”,
“port”: 8080,
“weight”: 1.0,
“healthy”: true,
“enabled”: true,
“ephemeral”: true,
“clusterName”: “DEFAULT”,
“serviceName”: “DEFAULT_GROUP@@fgedu-service”,
“metadata”: {}
}
]
}

# 使用Java SDK发现服务
import com.alibaba.nacos.api.NacosFactory;
import com.alibaba.nacos.api.naming.NamingService;
import com.alibaba.nacos.api.naming.pojo.Instance;
import java.util.List;

public class ServiceDiscovery {
public static void main(String[] args) throws Exception {
NamingService naming = NacosFactory.createNamingService(“192.168.1.51:8848”);
List instances = naming.selectInstances(“fgedu-service”, true);
for (Instance instance : instances) {
System.out.println(instance.getIp() + “:” + instance.getPort());
}
}
}

# 输出示例：
true

# 获取配置
$ curl “http://192.168.1.51:8848/nacos/v1/cs/configs?dataId=fgedu-config.properties&group=DEFAULT_GROUP”

# 输出示例：
server.port=8080

# 删除配置
$ curl -X DELETE “http://192.168.1.51:8848/nacos/v1/cs/configs?dataId=fgedu-config.properties&group=DEFAULT_GROUP”

# 输出示例：
true

# 使用Java SDK管理配置
import com.alibaba.nacos.api.NacosFactory;
import com.alibaba.nacos.api.config.ConfigService;
import com.alibaba.nacos.api.config.listener.Listener;

public class ConfigManager {
public static void main(String[] args) throws Exception {
ConfigService configService = NacosFactory.createConfigService(“192.168.1.51:8848”);

// 发布配置
configService.publishConfig(“fgedu-config.properties”, “DEFAULT_GROUP”, “server.port=8080”);

// 获取配置
String content = configService.getConfig(“fgedu-config.properties”, “DEFAULT_GROUP”, 5000);
System.out.println(content);

// 监听配置变化
configService.addListener(“fgedu-config.properties”, “DEFAULT_GROUP”, new Listener() {
@Override
public void receiveConfigInfo(String configInfo) {
System.out.println(“Config changed: ” + configInfo);
}
});
}
}

192.168.1.51:8848
192.168.1.52:8848
192.168.1.53:8848

# 配置application.properties
$ vi /opt/nacos/conf/application.properties

# 关闭单机模式
nacos.standalone=false

# 数据源配置（所有节点使用相同数据库）
spring.datasource.platform=mysql
db.num=1
db.url.0=jdbc:mysql://192.168.1.51:3306/nacos_config?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useSSL=false&serverTimezone=Asia/Shanghai
db.user.0=nacos
db.password.0=fgedu123

# 在所有节点启动
$ sh /opt/nacos/bin/startup.sh

# 查看集群状态
$ curl “http://192.168.1.51:8848/nacos/v1/ns/operator/servers”

# 输出示例：
{
“servers”: [
{
“ip”: “192.168.1.51”,
“port”: 8848,
“state”: “UP”
},
{
“ip”: “192.168.1.52”,
“port”: 8848,
“state”: “UP”
},
{
“ip”: “192.168.1.53”,
“port”: 8848,
“state”: “UP”
}
]
}

# 配置Nginx
# vi /etc/nginx/conf.d/nacos.conf

upstream nacos-cluster {
server 192.168.1.51:8848;
server 192.168.1.52:8848;
server 192.168.1.53:8848;
}

server {
listen 8848;
server_name nacos.fgedu.net.cn;

location /nacos/ {
proxy_pass http://nacos-cluster/nacos/;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
}

# 启动Nginx
# systemctl start nginx
# systemctl enable nginx