windows下VS2017編譯mongoDB c、c++API
一、mongoDB c、c++API介紹
mongoDB有兩個接口庫：mongo-c-driver和mongo-cxx-driver
1.1、mongo-c-driver：c代碼接口庫
下載鏈接：https://github.com/mongodb/mongo-c-driver
1.2、mongo-cxx-driver：c++代碼接口庫，是在mongo-c-driver的基礎上進行二次封裝
下載鏈接：https://github.com/mongodb/mongo-cxx-driver
最新版本：MongoDB C++11 Driver 3.4.0
注意：此庫需要boost支持
二、準備工作
1、安裝VS 2017：
2、安裝cmake：
下載地址：https://github.com/Kitware/CMake/releases/download/v3.13.3/cmake-3.13.3-win64-x64.zip
3、安裝boost：
三、編譯mongo-c-driver
1、把mongo-c-driver-1.13.0.tar.gz解壓到目錄：C:\mongocode\mongo-c-driver-1.13.0
2、cmake
1）打開cmd
2）cd到目錄：C:\mongocode\mongo-c-driver-1.13.0\build
3）執行cmake命令：
cmake.exe -G "Visual Studio 15 2017 Win64" "-DCMAKE_INSTALL_PREFIX=C:\mongo-c-driver" "-DCMAKE_PREFIX_PATH=C:\mongo-c-driver" ..
3、創建編譯輸出目錄：C:\mongo-c-driver
注意：此目錄必須手動創建，否則編譯會報錯
4、編譯：
1）用VS2017打開：C:\mongocode\mongo-c-driver-1.13.0\build\mongo-c-driver.sln
2）選擇Debug、x64
3）選中工程：ALL_BUILD
4）點擊編譯菜單開始編譯ALL_BUILD
5）選中工程：INSTALL
6）點擊編譯菜單開始編譯INSTALL
7）編譯完成，生成在C:\mongo-c-driver目錄下
注意：bson不需要單獨編譯
四、編譯mongo-cxx-driver
1、把mongo-cxx-driver-r3.4.0.zip解壓到目錄：C:\mongocode\mongo-cxx-driver-r3.4.0
2、cmake
1）打開cmd
2）cd到目錄：C:\mongocode\mongo-c-driver-1.13.0\build
3）執行cmake命令：
cmake.exe -G "Visual Studio 15 2017 Win64" -DCMAKE_INSTALL_PREFIX=C:\mongo-cxx-driver -DCMAKE_PREFIX_PATH=C:\mongo-c-driver -DBOOST_ROOT=C:\boost\include -DCMAKE_CXX_STANDARD=11 -DCMAKE_CXX_FLAGS="/Zc:__cplusplus" ..
注意：-DBOOST_ROOT=C:\boost\include 是boost目錄
3、創建編譯輸出目錄：mongo-cxx-driver
注意：此目錄必須手動創建，否則編譯會報錯
4、編譯：
1）用VS2017打開：C:\mongocode\mongo-cxx-driver-r3.4.0\build\build\MONGO_CXX_DRIVER.sln
2）選擇Debug、x64
3）選中工程：ALL_BUILD
4）點擊編譯菜單開始編譯ALL_BUILD
編譯失敗。。。。
5）問題一：
解決方法：修改工程設置，所有工程都按下圖修改
6）問題二：
解決方法：添加宏（_ENABLE_EXTENDED_ALIGNED_STORAGE）
7）編譯成功：
8）選中工程：INSTALL
9）點擊編譯菜單開始編譯INSTALL
10）編譯完成，生成在C:\mongo-cxx-driver目錄下
注意事項：目錄結構不要隨意更改，否則容易出錯
五、VS2017調用實例
1、新建工程：mongotest
2、複製include文件到工程目錄下：
3、複製lib到工程目錄下：
4、複製dll到工程目錄下：
5、設置工程include目錄：
注意：需要包含boost庫目錄
6、設置附加依賴性：
7、設置附加庫目錄：
8、demo代碼：
#include "pch.h"
#include <iostream>
#include "bsoncxx/builder/stream/document.hpp"
#include "mongocxx/instance.hpp"
#include "mongocxx/uri.hpp"
#include "mongocxx/client.hpp"
int main()
{
mongocxx::instance instance{};
mongocxx::uri uri("mongodb://127.0.0.1:27017");
mongocxx::client client(uri);
// 數據庫
mongocxx::database db = client["mytestdb"];
// 集合
mongocxx::collection coll = db["testcoll"];
// 插入
try
{
for (int i=1; i<=10; ++i)
{
auto builder = bsoncxx::builder::stream::document{};
builder << "userid" << i
<< "name" << "username";
coll.insert_one(builder.view());
std::cout << "insert : " << i << "\n";
}
}
catch (const std::exception& e)
{
std::cout << "insert error : " << e.what();
}
// 查找
try
{
auto cursor = coll.find(bsoncxx::builder::stream::document{} << "name" << "username" << bsoncxx::builder::stream::finalize);
if (cursor.begin() != cursor.end())
{
for (auto & doc : cursor)
{
std::string Name = doc["name"].get_utf8().value.to_string();
std::cout << "find : userid[" << doc["userid"].get_int32() << "] name[" << Name << "]\n";
}
}
}
catch (const std::exception& e)
{
std::cout << "find error : " << e.what();
}
// 更新
try
{
coll.update_one(bsoncxx::builder::stream::document{} <<
"userid" << 3 << bsoncxx::builder::stream::finalize,
bsoncxx::builder::stream::document{} << "$set" << bsoncxx::builder::stream::open_document
<< "name" << "username3333333"
<< bsoncxx::builder::stream::close_document
<< bsoncxx::builder::stream::finalize);
std::cout << "update : userid[3] name[username3333333]" << "\n";
}
catch (const std::exception& e)
{
std::cout << "update error : " << e.what();
}
// 刪除數據
try
{
auto filter_builder = bsoncxx::builder::stream::document{};
bsoncxx::document::value filter_value = filter_builder << "userid" << 7 << bsoncxx::builder::stream::finalize;
coll.delete_one(filter_value.view());
std::cout << "delete : userid[7]" << "\n";
}
catch (const std::exception& e)
{
std::cout << "delete error : " << e.what();
}
// 再次查找
try
{
auto cursor = coll.find(bsoncxx::builder::stream::document{} << bsoncxx::builder::stream::finalize);
if (cursor.begin() != cursor.end())
{
for (auto & doc : cursor)
{
std::string Name = doc["name"].get_utf8().value.to_string();
std::cout << "find again : userid[" << doc["userid"].get_int32() << "] name[" << Name << "]\n";
}
}
}
catch (const std::exception& e)
{
std::cout << "find error : " << e.what();
}
getchar();
}
9、運行結果：