C++ 注册Nacos-编程知识

C++ 注册Nacos

下载源码：

git clone GitHub - nacos-group/nacos-sdk-cpp: C++ client for Nacos

编译源码

cd nacos-sdk-cpp

cmake .

make

生成库文件

在nacos-sdk-cpp 下

注册nacos

将include 和libnacos-cli.so libnacos-cli-static.a 放入你的工程

如果Nacos服务地址:192.168.1.124:8848

如果你的c++服务配置为

地址：192.168.1.131

端口：9000

服务名：TestCppService

在你的工程中添加如下代码

注册实例

头文件

#include <iostream>
#include <unistd.h>
#include "Nacos.h"using namespace std;
using namespace nacos;


Properties configProps;
configProps[PropertyKeyConst::SERVER_ADDR] = "192.168.1.118:8848";
INacosServiceFactory *factory = NacosFactoryFactory::getNacosFactory(configProps);
ResourceGuard <INacosServiceFactory> _guardFactory(factory);
NamingService *namingSvc = factory->CreateNamingService();
ResourceGuard <NamingService> _serviceFactory(namingSvc);
Instance instance;
instance.clusterName = "DefaultCluster";
instance.ip = "192.168.1.131";
instance.port = 9000;
instance.instanceId = "1";
instance.ephemeral = true;try
{NacosString serviceName = "TestCppService" ;namingSvc->registerInstance(serviceName, instance);
}
catch (NacosException &e)
{cout << "encounter exception while registering service instance, raison:" << e.what() << endl;return ;
}

注销实例

 try{NacosString serviceName = "TestCppService" ;namingSvc->deregisterInstance(serviceName, "192.168.1.131", 9000);}catch (NacosException &e){cout << "encounter exception while registering service instance, raison:" << e.what() << endl;return ;}

可以在Nacos中心看到注册服务上线：

可以配合libhv 来做测试

下载libhv

git clone libhv: 🔥 比libevent、libuv更易用的国产网络库，用来开发 TCP/UDP/SSL/HTTP/WebSocket/MQTT 客户端/服务端

编译libhv

mkdir build

cd build

cmake ..

cmake --build .

生成库文件

编译例子

g++ -std=c++11 -I ./libhv-master/include/hv/ -I ./nacos-sdk-cpp-master/include/ http_server.cpp -o http_server -L ./lib -lhv -lnacos-cli

合并后的完整代码

#include "hv/HttpServer.h"#include <iostream>
#include <unistd.h>
#include "Nacos.h"using namespace std;
using namespace nacos;void HttpRouter(HttpService &router)
{// curl -v http://ip:port/router.Static("/", "./html");// curl -v http://ip:port/pingrouter.GET("/ping", [](HttpRequest* req, HttpResponse* resp) {return resp->String("pong");});// curl -v http://ip:port/datarouter.GET("/data", [](HttpRequest* req, HttpResponse* resp) {static char data[] = "0123456789";return resp->Data(data, 10 /*, false */);});// curl -v http://ip:port/pathsrouter.GET("/paths", [&router](HttpRequest* req, HttpResponse* resp) {return resp->Json(router.Paths());});// curl -v http://ip:port/get?env=1router.GET("/get", [](HttpRequest* req, HttpResponse* resp) {resp->json["origin"] = req->client_addr.ip;resp->json["url"] = req->url;resp->json["args"] = req->query_params;resp->json["headers"] = req->headers;return 200;});// curl -v http://ip:port/echo -d "hello,world!"router.POST("/echo", [](const HttpContextPtr& ctx) {return ctx->send(ctx->body(), ctx->type());});// curl -v http://ip:port/user/123router.GET("/user/{id}", [](const HttpContextPtr& ctx) {hv::Json resp;resp["id"] = ctx->param("id");return ctx->send(resp.dump(2));});}int main() 
{  Properties configProps;configProps[PropertyKeyConst::SERVER_ADDR] = "192.168.1.118:8848";INacosServiceFactory *factory = NacosFactoryFactory::getNacosFactory(configProps);ResourceGuard <INacosServiceFactory> _guardFactory(factory);NamingService *namingSvc = factory->CreateNamingService();ResourceGuard <NamingService> _serviceFactory(namingSvc);Instance instance;instance.clusterName = "DefaultCluster";instance.ip = "192.168.1.131";instance.port = 9000;instance.instanceId = "1";instance.ephemeral = true;try {NacosString serviceName = "TestCppService" ;namingSvc->registerInstance(serviceName, instance);}catch (NacosException &e) {cout << "encounter exception while registering service instance, raison:" << e.what() << endl;}	HttpService router;HttpRouter(router);http_server_t server;server.port = 8080;server.service = &router;http_server_run(&server);try {NacosString serviceName = "TestCppService" ;namingSvc->deregisterInstance(serviceName, "192.168.1.131", 9000);}catch (NacosException &e) {cout << "encounter exception while registering service instance, raison:" << e.what() << endl;return -1;}sleep(5);return 0;
}

可以配置通过nacos 网关统一调用