使用Cmake将MYSQL连接到C++

Question

我想构建一个 C++ 程序来创建用户并将其保存到数据库（mysql）。我使用 Cmake 进行编译，使用 VSCode 作为 IDE。我已经安装了 MYSQL、MYSQL C++ 连接器。但是我的 IDE 说

#include <mysql/cppconn> ...

无法打开源文件。

这是我的数据库类的头文件：

#ifndef DATABASE_HPP
#define DATABASE_HPP

#include <mysql_driver.h>
#include <mysql_connection.h>
#include <cppconn/prepared_statement.h>
#include <cppconn/statement.h>
#include <cppconn/resultset.h>
#include <memory>
#include <string>

class Database {
public:
    // Constructor to initialize database connection
    Database();

    // Method to add a new account to the database
    void AddAccount(int accountID, const std::string& name, double balance, const std::string& password);

    // Method to update the account balance after a transaction
    void UpdateBalance(int accountID, double new_balance);

private:
    sql::mysql::MySQL_Driver *driver;
    std::unique_ptr<sql::Connection> con;
};

#endif

这是我的根目录

CmakeLists.txt

文件：

cmake_minimum_required(VERSION 3.25.0)

set(This Castle)

project(${This} C CXX)
set(CMAKE_C_STANDARD 99)
set(CMAKE_CXX_STANDARD 23)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_POSITION_INDEPENDENT_CODE ON)

# Enable testing
enable_testing()

# Add GoogleTest subdirectory
add_subdirectory(googletest)

# Include directory for your headers
include_directories(${CMAKE_SOURCE_DIR}/include)

# Find OpenSSL package (make sure OpenSSL is installed and the path is correct)
find_package(OpenSSL REQUIRED)
include_directories(${OPENSSL_INCLUDE_DIR})

# Find MySQL Connector/C++ package
include_directories("C:/Program Files/MySQL/MySQL Connector C++ 9.0/include/mysql")
link_directories("C:/Program Files/MySQL/MySQL Connector C++ 9.0/lib64")

# Include MySQL Connector/C++ directories
include_directories(${MYSQLCONNECTORCPP_INCLUDE_DIRS})

# Your source and header files
set(Headers
    include/account.hpp
    include/security.hpp
    include/transaction.hpp
    include/auditLog.hpp
)

set(Sources
    src/account.cpp
    src/security.cpp
    src/transaction.cpp
    src/auditLog.cpp
)

# Create a static library
add_library(${This} STATIC ${Sources} ${Headers})

# Link OpenSSL and MySQL Connector libraries to your static library
target_link_libraries(${This} PUBLIC OpenSSL::SSL OpenSSL::Crypto ${MYSQLCONNECTORCPP_LIBRARIES})

# Add subdirectory for tests
add_subdirectory(tests)

我确保MYSQL C++ Connector的路径包含

mysql_driver.h

、

cppconn

目录和其他必要的头文件，但它仍然无法工作。

提前感谢您的帮助。

Answer 1

从版本 8.3.0 开始，MySQL 连接器附带了 您链接到的一组很好的 CMake 目标：

set(mysql-concpp_DIR "C:/Program Files/MySQL/MySQL Connector C++ 9.0")
find_package(mysql-concpp REQUIRED)
target_link_libraries(${This} PUBLIC mysql::concpp)