c++ http第一个服务

失去的青春---夕阳下的奔跑2024-01-23 1:01

c++ http第一个服务

一、下载相关依赖：这是一个git开源项目代码仓地址

二、演示代码，编译参数：g++ test.cpp -I/**** -lpthread

c++ 复制代码

#include <httplib.h>
using namespace httplib;

void wuhan(const Request &req, Response &res)
{
    printf("httplib server recv a req: %s\n ", req.path.c_str() );
    res.set_content("<html>  \
                        <meta http-equiv=\"Content-Type\" content=\"text/html;charset=utf-8\"> \
                        <h1> 武汉, 加油！</h1></html>",
                    "text/html");
    res.status = 200;
}

int main(void)
{
    using namespace httplib;

    Server svr;
    svr.set_base_dir("./");

/// Get
svr.Get("/wuhan", wuhan);


    svr.Get("/hi", [](const Request& req, Response& res) {
        res.set_content("Hello World!", "text/plain");
    });

    svr.Get(R"(/numbers/(\d+))", [&](const Request& req, Response& res) {
        auto numbers = req.matches[1];
        res.set_content(numbers, "text/plain");
    });

    svr.Get("/body-header-param", [](const Request& req, Response& res) {
        if (req.has_header("Content-Length")) {
            auto val = req.get_header_value("Content-Length");
        }
        if (req.has_param("key")) {
            auto val = req.get_param_value("key");
        }
        res.set_content(req.body, "text/plain");
    });

    svr.Get("/stop", [&](const Request& req, Response& res) {
        svr.stop();
    });

    /// listen
    svr.listen("localhost", 1234);
}

三、访问网址http://localhost:1234/hi