MongoDB C Driver Building on Windows

一、编译mongodb c driver:

  需要先安装OpenSSL:(参见:http://bbs.aircheng.com/read-2222-1)

  步骤:(MongoDB不需要授权登陆的话,就不需要OpenSSL,直接跳到第步

    1.下载ActivePerl  5.24.0.2400 
     http://www.activestate.com/activeperl/downloads

    2.安装ActivePerl软件 
     没什么好说的,一步一步安装即可。安装成功后,设置环境变量。 
     例如我将ActivePerl安装在C:\Perl64\目录下,则选中Path,单击编辑按钮,

     将C:\Perl64\site\bin;C:\Perl64\bin;加入其中,确认即可。

     运行”CMD“命令,使用cd命令将运行目录指向perl安装目录的eg文件夹,

     执行“perl example.pl”若显示“Hello from ActivePerl!”,则说明Perl安装成功,

     可以开始使用Perl的相关命令来进行OpenSSL的安装了。 

    3.安装Microsoft Visual Studio 2010 
     将C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\amd64;

     加入系统环境变量,具体以你安装的路径为准,

     注意(64位)是 bin\amd64; 不是 bin; 多么痛的领悟。

    4.安装NASM 
     http://www.nasm.us/

     当前稳定版本为:2.12.02 
     http://www.nasm.us/pub/nasm/releasebuilds/2.12.02/win64/ 
     MongoDB C Driver Building on Windows

    将nasm的路径添加至环境变量
    例如我的nasm安装在 C:\Users\lenovo\AppData\Local\NASM 目录

    

    5.下载OpenSSL 
     https://www.openssl.org/source/

     下载后,将其解压缩至C:\openssl目录下,这样做便于后续操作

     注意目录结构,不要出现openssl-1.1.0c子目录,

     而是将openssl-1.1.0c目录下的文件拷贝至C:\openssl目录下

    6.初始化编译环境 
     因为Visual Studio 2010安装在目录中C:\Program Files (x86)\Microsoft Visual Studio 10.0\ 
     这里使用的是在Visual Studio Tools文件夹下的Visual Studio x64 Win64命令提示(2010)工具。 
   然后右键:以管理员身份运行
     MongoDB C Driver Building on Windows

     进入Visual Studio 2010安装目录 C:\Program Files (x86)\Microsoft Visual Studio 10.0\中 
     执行命令:cd C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\amd64 
     执行命令:vcvars64.bat

 

     7.openssl的源文件已解压至C:\openssl的目录中,下面开始执行Configure 
      进入openssl 目录下执行 perl Configure VC-WIN64A 
      MongoDB C Driver Building on Windows

      执行结束后,如下图所示 
      MongoDB C Driver Building on Windows

      8.执行命令:nmake 
      MongoDB C Driver Building on Windows 

      如果执行成功,则等待输入下一个命令

      MongoDB C Driver Building on Windows

     9.执行命令:nmake test

      MongoDB C Driver Building on Windows

      很顺利的情况下: 
      MongoDB C Driver Building on Windows

      

      10.执行命令:nmake install 
      MongoDB C Driver Building on Windows

      当出现下面页面的时候,证明你已成功: 
      MongoDB C Driver Building on Windows

     11.编译驱动:

        http://mongoc.org/libmongoc/(api 官方文档)

       https://github.com/mongodb/mongo-c-driver(GitHub驱动源码,这个 src/libbson 文件夹里面是空的)

       驱动源码下载:https://github.com/mongodb/mongo-c-driver/releases

       build前需下载个最新的cmake安装。

       MongoDB C Driver Building on Windows

        MongoDB C Driver Building on Windows


编译完成之后在c:\mongo-c-driver目录下有bin、include、lib三个文件夹,分别包含所需的dll、.h文件、lib。

MongoDB C Driver Building on Windows

MongoDB C Driver Building on Windows

在自己的项目中引入这些.h文件、lib、dll就可以使用 C API 了。

二、C API 的使用

#include "mongoc.h"

1.连接MongoDB:

//只能调用一次mongoc_init
mongoc_init(); const char *uristr = "mongodb://user:pwd@host:port/"; //MongoDB不需要登录认证的话,连接字符串中的用户名:密码@可以省略。 //connection to MongoDB.
m_client = mongoc_client_new (uristr); if (!m_client)
{
return false;
} m_pCollection = mongoc_client_get_collection(m_client, "myDatabase", "mycollection");
return true;

  

2.Insert操作:

bson_t query;

bson_init(&query);
BSON_APPEND_UTF8(&query,"name","chunxiao");
BSON_APPEND_INT32(&query,"age",NULL);
BSON_APPEND_DOUBLE(&query,"Price",66.0);
if (!mongoc_collection_insert(m_pCollection,MONGOC_INSERT_NONE,&query,NULL,&error))
{
  AfxMessageBox(error.message);
}
bson_destroy(&query);
return true;

  

3.Find操作:

double age1 = 20;
double age2 = 22;
char name[10] = "chunxiao";
int sex = 0; bson_init(&query);
bson_append_document_begin(&query,"age",3,&child);
bson_append_double(&child,"$gt",3,age1);
bson_append_document_end(&query,&child); bson_append_document_begin(&query,"age",3,&child1);
bson_append_double(&child1,"$lte",4,age2);
bson_append_document_end(&query,&child1); cursor = mongoc_collection_find(m_pCollection,MONGOC_QUERY_NONE,0,0,0,&query,NULL,NULL);
vector<string> vData;
while (mongoc_cursor_next(cursor,&docFind))
{
//方法一
bson_iter_t iter;
bson_iter_init(&iter,docFind);
if (bson_iter_find(&iter,"name"))
{
  strcpy(str,bson_iter_utf8(&iter,NULL));
  strtest = bson_iter_utf8(&iter,NULL);
  if (strcmp(strtest.c_str(),"xiaochun")==0)
  {
  AfxMessageBox(str);
  continue;
  }
  strtest = strtest.substr(strtest.find_first_of("x"),2);
  AfxMessageBox(str);
}
bson_iter_init(&iter,docFind);//顺序不一致的话,要重新初始化一下 iter,否则find不到
if (bson_iter_find(&iter,"age"))
{
  int f = bson_iter_int32(&iter);
  sprintf(str,"%d",f);
  AfxMessageBox(str);
} //方法二
char *str;
str = bson_as_json(docFind, NULL);
vData.push_back(str);
} if (mongoc_cursor_error(cursor, &error))//mongoc_cursor_error 要在 mongoc_cursor_next 之后调用,否则获取不到 error.message
{
cout << "An error occurred:" << error.message << endl;
  mongoc_cursor_destroy(cursor);
  bson_destroy(&query);
  return false;
} mongoc_cursor_destroy(cursor);
bson_destroy(&query); return true;

  

4.Delete操作:

double age = 21;
bson_init(&query);
bson_append_document_begin(&query,"age",3,&child);
bson_append_double(&child,"$gt",3,age);
bson_append_document_end(&query,&child);
BSON_APPEND_UTF8(&query,"name","chun.xiao");
if (!mongoc_collection_remove(m_pCollection,MONGOC_REMOVE_NONE,&query,NULL,&error))
{
  AfxMessageBox(error.message);
}
bson_destroy(&query);
return true;

  

5.UpDate操作:

bson_init(&query);
BSON_APPEND_UTF8(&query,"name","chunxiao"); bson_t *docUpDate = bson_new(); bson_append_document_begin(docUpDate,"$set",-1,&child);
BSON_APPEND_UTF8(&child,"name","xiaochun");
bson_append_document_end(docUpDate,&child); bson_init(&child);
bson_append_document_begin(docUpDate,"$set",-1,&child);
BSON_APPEND_UTF8(&child,"age","21");
bson_append_document_end(docUpDate,&child); if (!mongoc_collection_update(m_pCollection,MONGOC_UPDATE_NONE,&query,docUpDate,NULL,&error))
{
  AfxMessageBox(error.message);
}
bson_destroy(&query);
bson_destroy(docUpDate);
return true;

  

百度云(13207134391):

  编译 C driver:

    MongoDB\C API\安装MongoDB以及编译 C driver

  Demo:

    MongoDB\C API\C API 操作MongoDB

 

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