MongoDB c++ driver（四）

简单的查找实现

#include <iostream>

#include <bsoncxx/builder/stream/document.hpp>
#include <bsoncxx/json.hpp>

#include <mongocxx/client.hpp>
#include <mongocxx/options/find.hpp>
#include <mongocxx/instance.hpp>
#include <mongocxx/uri.hpp>

using bsoncxx::builder::stream::document;
using bsoncxx::builder::stream::open_document;
using bsoncxx::builder::stream::close_document;
using bsoncxx::builder::stream::open_array;
using bsoncxx::builder::stream::close_array;
using bsoncxx::builder::stream::finalize;

int main(int argc, char** args)
{
        mongocxx::instance inst{};
        mongocxx::client conn{mongocxx::uri{"mongodb://chenzw:IP:端口"}};

        auto db = conn["guanwang"];
        auto cursor = db["restaurants"].find({});

        for (auto&& doc : cursor)
        {
    std::cout << bsoncxx::to_json(doc) << std::endl;
        }

        return 0;
}

编译、运行

$ c++ –std=c++11 3find.cpp -o 3find $(pkg-config –cflags –libs libmongocxx)

$ ./3find

运行结果：