Windows下C++连接MySQL

步骤：

1. 安装MySQL数据库

2. 项目属性页->C/C++->常规->附加包含目录：xxx\MySQL Server 5.6\include

3. 项目属性页->链接器->常规->附加库目录：xxx\MySQL Server 5.6\lib

4. 项目属性页->链接器->输入->附加依赖项：libmysql.lib 将libmysql.dll拷贝到项目中

5. 引入头文件:

#include<Windows.h>  #include <mysql.h>

测试代码：

#include<iostream>
#include<Windows.h>
#include <mysql.h>
#include<string>

using namespace std;

int main()
{

//必备的一个数据结构
MYSQL mydata;

//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 -1;
}

//初始化数据结构
if (NULL != mysql_init(&mydata)) {
cout << "mysql_init() succeed" << endl;
}
else {
cout << "mysql_init() failed" << endl;
return -1;
}

//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 -1;
}

//连接数据库
if (NULL
!= mysql_real_connect(&mydata, "localhost", "root", "root", "test",
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 -1;
}

//sql字符串
string sqlstr;

//创建一个表
sqlstr = "CREATE TABLE IF NOT EXISTS `new_paper` (";
sqlstr += " `NewID` int(11) NOT NULL AUTO_INCREMENT,";

sqlstr += " `NewCaption` varchar(40) NOT NULL,";

sqlstr += " `NewContent` text,";

sqlstr += " `NewTime` datetime DEFAULT NULL,";

sqlstr += " PRIMARY KEY(`NewID`)";

sqlstr += " ) ENGINE = InnoDB DEFAULT CHARSET = utf8";

if (0 == mysql_query(&mydata, sqlstr.c_str())) {
cout << "mysql_query() create table succeed" << endl;
}
else {
cout << "mysql_query() create table failed" << endl;
mysql_close(&mydata);
return -1;
}

//向表中插入数据
for (int i = 0;i < 100;i++)
{
sqlstr =
"INSERT INTO `test`.`new_paper` (`NewID`, `NewCaption`, `NewContent`, `NewTime`) ";
sqlstr += "VALUES (default, '组织者', '方提出更换存放骨灰存放', '2015-09-01 14:29:51');";
if (0 == mysql_query(&mydata, sqlstr.c_str())) {
cout << "mysql_query() insert data succeed" << endl;
}
else {
cout << "mysql_query() insert data failed" << endl;
mysql_close(&mydata);
return -1;
}
}

//显示刚才插入的数据
sqlstr = "SELECT `NewID`,`NewCaption`,`NewContent`,`NewTime` FROM `test`.`new_paper`";
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 -1;
}

//删除刚才建的表
sqlstr = "DROP TABLE `test`.`new_paper`";
if (0 == mysql_query(&mydata, sqlstr.c_str())) {
cout << "mysql_query() drop table succeed" << endl;
}
else {
cout << "mysql_query() drop table failed" << endl;
mysql_close(&mydata);
return -1;
}
mysql_free_result(result);
mysql_close(&mydata);
mysql_server_end();

system("pause");
return 0;
}