记录一次dubbo 接入 nacos 死活报 user not found

最新推荐文章于 2025-09-11 05:31:05 发布

原创最新推荐文章于 2025-09-11 05:31:05 发布 · 1.7k 阅读

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#dubbo

文章介绍了DubboUtils类中如何使用ApacheDubbo框架获取服务实例，包括设置版本、tag以及连接到不同的注册中心。方法中涉及到了服务查找、消费配置和注册中心管理。

package com.nwei.hangame.utils;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.commons.lang3.StringUtils;
import org.apache.dubbo.config.ApplicationConfig;
import org.apache.dubbo.config.ConsumerConfig;
import org.apache.dubbo.config.ReferenceConfig;
import org.apache.dubbo.config.RegistryConfig;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.budwk.app.player.providers.IPlayerUserProvider;

public class DubboUtils {
private static final Logger logger = LoggerFactory.getLogger(DubboUtils.class);
public static final Map<String, Object> serviceMap = new HashMap<>();

   /**
   * 取得Dubbo bean
   *
   * @param clazz
   * @param version
   * @param tag 可以不传不传的话取system环境变量
   * @param <T>
   * @return
   */
   public static <T> T getService(Class<T> clazz, String version, String... tag) {
       if (clazz == null || StringUtils.isBlank(version)) {
           throw new IllegalArgumentException("DubboUtils#getService():参数不能为空.");
       }
       String key = clazz.getName() + ":" + version;
       Object objService = serviceMap.get(key);
       if (objService != null && !StringUtils.equals(objService.getClass().getName(), clazz.getName())) {
           throw new IllegalArgumentException(
                   "DubboUtils#getService():返回值类型不符.期望:" + clazz.getName() + ",实际:" + objService.getClass().getName());
       }
       if (serviceMap.containsKey(key)) {
           return (T) objService;
       }

ReferenceConfig reference = createReferenceConfig();

       // 设置tag：用于灰度发布、线上程序调试
       String tagEnv = getTag(tag);
       if (StringUtils.isNotBlank(tagEnv)) {
           ConsumerConfig consumerConfig = new ConsumerConfig();
           consumerConfig.setId(tagEnv);
           reference.setConsumer(consumerConfig);
       }

       reference.setVersion(version);
       // 弱类型接口名
       reference.setInterface(clazz);
       // 声明为泛化接口
//       reference.setGeneric("fasle");

       objService = reference.get();
       serviceMap.put(key, objService);
       return (T) objService;
   }

   private static ReferenceConfig createReferenceConfig() {
       RegistryConfig registry1 = new RegistryConfig();
       registry1.setAddress("nacos://127.0.0.1:8848?namespace=dev&contextPath=/nacos&username=test&password=123");
//       registry1.setUsername("test");
//       registry1.setPassword("123");
//       registry1.setProtocol("dubbo");
//       registry1.setGroup("DEFAULT_GROUP");

       // 普通编码配置方式
       ApplicationConfig application = new ApplicationConfig();
       // 客户端应用名：可以任意取名
       application.setName("consumer11");
       application.setLogger("slf4j");
       application.setOwner("dongshidaddy");
       application.setRegistry(registry1);

       // 连接注册中心配置
       List<RegistryConfig> registries = new ArrayList<>();
       registries.add(registry1);

System.out.println(registry1);
// RegistryConfig registry2 = new RegistryConfig();
// registry2.setAddress("zookeeper://vr-zk-2.189read.com:2181");
// registries.add(registry2);

       // 引用远程服务
       // 该实例很重量，里面封装了所有与注册中心及服务提供方连接，请缓存
       ReferenceConfig reference = new ReferenceConfig();
       reference.setApplication(application);
       reference.setRegistries(registries);
       reference.setCheck(false);
       return reference;
   }

   public static void main(String[] args) {
   IPlayerUserProvider p=getService(IPlayerUserProvider.class, "1.0.0");
   System.out.println(p);
   }

   private static String getTag(String... tag) {
       String tagEnv = System.getProperty("dubbo.provider.tag");
       if (tag != null && tag.length > 0 && StringUtils.isNotBlank(tag[0])) {
           tagEnv = tag[0];
       }
       return tagEnv;
   }
}

最后确认是pom里的包是老的。。