2

mongoc.h在 Ubuntu 16.04 上安装 Mongodb 和 C 驱动程序后我找不到。

sudo apt-get install mongodb
sudo apt-get install libmongoc-1.0-0
sudo apt-get install libbson-1.0

这是我得到的错误：

gcc -o mtest mtest.c -I/usr/local/include/libbson-1.0 -I/usr/local/include/libmongoc-1.0 -lmongoc-1.0 -lbson-1.0
mtest.c:1:20: fatal error: mongoc.h: No such file or directory
compilation terminated.

我检查了磁盘，找不到文件。提示赞赏。

4

2 回答 2

1

如果您是通过 apt-get 安装的，那么这些软件包几乎肯定不会安装到/usr/local.，而是安装到普通的 old /usr. 如果你跑步会发生什么

gcc -o mtest mtest.c -I/usr/include/libbson-1.0 -I/usr/include/libmongoc-1.0 -lmongoc-1.0 -lbson-1.0

PS获取这些路径的正确方法是使用pkg-config而不是硬编码它们，请参阅http://mongoc.org/libmongoc/current/tutorial.html#pkg-config

于 2018-07-26T14:57:46.740 回答
0

我遇到了同样的问题，然后我按照以下步骤（对于 Ubuntu）安装了库的软件包，根据libmongoc 的链接：

1 - 检查您是否安装了 cmake，如果没有： $ sudo apt-get install cmake

2 - 下载、构建源代码和安装库：

$ wget https://github.com/mongodb/mongo-c-driver/releases/download/1.14.0/mongo-c-driver-1.14.0.tar.gz
$ tar xzf mongo-c-driver-1.14.0.tar.gz
$ cd mongo-c-driver-1.14.0
$ mkdir cmake-build
$ cd cmake-build
$ cmake -DENABLE_AUTOMATIC_INIT_AND_CLEANUP=OFF ..

3 - 测试，编辑文件并保存为 hello_mongo.c：

#include <mongoc/mongoc.h>

int main (int argc, char *argv[])
{
  const char *uri_string = "mongodb://localhost:27017";
  mongoc_uri_t *uri;
  mongoc_client_t *client;
  mongoc_database_t *database;
  mongoc_collection_t *collection;
  enter code here`bson_t *command, reply, *insert;
  bson_error_t error;
  char *str;
  bool retval;

  /*
   * Required to initialize libmongoc's internals
   */
  mongoc_init ();

  /*
   * Optionally get MongoDB URI from command line
   */
  if (argc > 1) {
     uri_string = argv[1];
  }

  /*
   * Safely create a MongoDB URI object from the given string
   */
  uri = mongoc_uri_new_with_error (uri_string, &error);
  if (!uri) {
     fprintf (stderr,
            "failed to parse URI: %s\n"
            "error message:       %s\n",
            uri_string,
            error.message);
     return EXIT_FAILURE;
  }

  /*
   * Create a new client instance
   */
  client = mongoc_client_new_from_uri (uri);
  if (!client) {
     return EXIT_FAILURE;
  }

  /*
   * Register the application name so we can track it in the profile logs
   * on the server. This can also be done from the URI (see other examples).
   */
  mongoc_client_set_appname (client, "connect-example");

  /*
   * Get a handle on the database "db_name" and collection "coll_name"
   */
  database = mongoc_client_get_database (client, "db_name");
  collection = mongoc_client_get_collection (client, "db_name", "coll_name");

  /*
   * Do work. This example pings the database, prints the result as JSON and
   * performs an insert
   */
  command = BCON_NEW ("ping", BCON_INT32 (1));

  retval = mongoc_client_command_simple (
     client, "admin", command, NULL, &reply, &error);

  if (!retval) {
     fprintf (stderr, "%s\n", error.message);
     return EXIT_FAILURE;
  }

  str = bson_as_json (&reply, NULL);
  printf ("%s\n", str);

  insert = BCON_NEW ("hello", BCON_UTF8 ("world"));

  if (!mongoc_collection_insert_one (collection, insert, NULL, NULL, &error)) {
     fprintf (stderr, "%s\n", error.message);
  }

  bson_destroy (insert);
  bson_destroy (&reply);
  bson_destroy (command);
  bson_free (str);

  /*
   * Release our handles and clean up libmongoc
   */
  mongoc_collection_destroy (collection);
  mongoc_database_destroy (database);
  mongoc_uri_destroy (uri);
  mongoc_client_destroy (client);
  mongoc_cleanup ();

  return EXIT_SUCCESS;
}

4 - 编译和运行C程序：

$ gcc -o hello_mongoc hello_mongoc.c -I/usr/local/include/libbson-1.0 
-/usr/local/include/libmongoc-1.0 -lmongoc-1.0 -lbson-1.0
$ ./hello_mongoc

如果您正在使用 raspberrypi 3，那么您很可能使用 mongodb 2.4.14 ，然后库 libbson 和 libmongoc 必须是 1.7.0 版本。看看这些：libmongoc和libbson。

于 2019-04-30T18:44:26.933 回答