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我是新來的c + +開發。 我想嘗試使用MySQL數據庫,但不明白它有什麼問題。這是我的代碼。CLion Cmake mysql.h missunderstanding
#include <iostream>
#include <mysql.h>
MYSQL *connection, mysql;
MYSQL_RES *result;
MYSQL_ROW row;
int query_state;
int main() {
mysql_init(&mysql);
//connection = mysql_real_connect(&mysql,"host","user",
// "password","database",port,"unix_socket",clientflag);
connection = mysql_real_connect(&mysql,"localhost",
"root","qwer","cpp_data",3306,0,0);
if (connection == NULL) {
std::cout << mysql_error(&mysql) << std::endl;
return 1;
}
query_state = mysql_query(connection, "select user_count()");
if (query_state !=0) {
std::cout << mysql_error(connection) << std::endl;
return 1;
}
result = mysql_store_result(connection);
while ((row = mysql_fetch_row(result)) != NULL) {
std::cout << "Number of active users : " << row[0] << std::endl;
}
mysql_free_result(result);
mysql_close(connection);
return 0;
}
當我跑我PROGRAMM它說C:\用戶\用戶\ CLionProjects \我-CPP訓練\ main.cpp中:9:19:致命錯誤:mysql.h中:沒有這樣的文件或目錄
我會提供我的CMakeList,還有一些我通過學習寫的源。那就是:
cmake_minimum_required(VERSION 3.8)
project(my_cpp_training)
set(CMAKE_CXX_STANDARD 11)
LINK_DIRECTORIES(D:/Downloads/mysql-connector-c++-noinstall-1.1.9-winx64/include)
include_directories ("D:/Downloads/mysql-connector-c++-noinstall-1.1.9-winx64/include")
set(SOURCE_FILES main.cpp util/ContrainerUtils.cpp classes/Examples.cpp classes/Person.cpp classes/Person.h pointers/PointersArithmatic.cpp classes/Object.cpp classes/Object.h classes/Animal.cpp classes/Animal.h classes/Vector.cpp classes/Vector.h bussiness-layer/user.cpp util/Out.cpp util/Out.h classes/Container.cpp classes/Container.h classes/Vector_container.cpp classes/Vector_container.h util/PropertiesReader.cpp util/PropertiesReader.h util/Settings.cpp util/Settings.h)
add_executable(my_cpp_training ${SOURCE_FILES})
target_link_libraries (my_cpp_training mysqlcppconn)
在這裏,我將證明我有庫下載和路徑在我的電腦中提取CMakeList.txt使用我
請幫助我,而不是隻像寫你的想法,我已經半天搜索了一遍,並閱讀了很多東西。只需在這裏寫下你喜歡的不正確的內容,或者你忘記了這段代碼或行。
是mysql.h其實在你指定的路徑中? –
yeap,你可以點擊鏈接「到mysql C++庫的路徑」,你會看到這個圖片爲 – newbie2017
的權利。所以它實際上不在磁盤上。您已經下載了mysqlcppconn C++連接器,而不是mysql C連接器。 –