c++ 连接mysql数据库

一、根据程序需要下载安装32位mysql数据库

连接：https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-5.7.20-win32.zip

二、配置程序项目属性

1.指定包含头文件路径：
Project->properties->C/C++->Additional Include Directories->(这里指定mysql各种头文件的目录，我的是mysql文件夹里的include)
2.指定lib路径：
Project->properties->Linker->General->Additional Library Directories->(这里是libmysql.lib所在路径，我的是在lib里)
3.添加lib：
Project->properties->Linker->Input->Additional Dependencies->增加libmysql.lib
4.修改配置：
Build->Configuration Manager->Active solution platform->x32

三、测试代码

#include <winsock.h>#include <stdlib.h>#include <mysql.h> #pragma comment(lib,"libmysql.lib")#pragma comment(lib, "ws2_32.lib")//必备的一个数据结构  MYSQL mydata;//初始化数据库void initMysql() {//初始化数据库  if (0 == mysql_library_init(0, NULL, NULL)) {cout << "mysql_library_init() succeed" << endl;}else {cout << "mysql_library_init() failed" << endl;return;}//初始化数据结构  if (NULL != mysql_init(&mydata)) {cout << "mysql_init() succeed" << endl;}else {cout << "mysql_init() failed" << endl;return;}//在连接数据库之前，设置额外的连接选项  //可以设置的选项很多，这里设置字符集，否则无法处理中文  if (0 == mysql_options(&mydata, MYSQL_SET_CHARSET_NAME, "gbk")) {cout << "mysql_options() succeed" << endl;}else {cout << "mysql_options() failed" << endl;return;}//连接数据库 if (NULL != mysql_real_connect(&mydata, "localhost", "root", "", "chartdb", 3306, NULL, 0))//这里的地址，用户名，密码，端口可以根据自己本地的情况更改  {cout << "mysql_real_connect() succeed" << endl;}else {cout << "mysql_real_connect() failed" << endl;return;}}// 查询数据库void queryData() {string sqlstr;sqlstr = "select * from future_info";MYSQL_RES *result = NULL;if (0 == mysql_query(&mydata, sqlstr.c_str())) {cout << "mysql_query() select data succeed" << endl;//一次性取得数据集  result = mysql_store_result(&mydata);//取得并打印行数  int rowcount = mysql_num_rows(result);cout << "row count: " << rowcount << endl;//取得并打印各字段的名称  unsigned int fieldcount = mysql_num_fields(result);MYSQL_FIELD *field = NULL;for (unsigned int i = 0; i < fieldcount; i++) {field = mysql_fetch_field_direct(result, i);cout << field->name << "\t\t";}cout << endl;//打印各行  MYSQL_ROW row = NULL;row = mysql_fetch_row(result);while (NULL != row) {for (int i = 0; i < fieldcount; i++) {cout << row[i] << "\t\t";}cout << endl;row = mysql_fetch_row(result);}}else {cout << "mysql_query() select data failed" << endl;mysql_close(&mydata);return;}}int main(){       // 初始化        initMysql();       // 查询queryData();         return 0;}