c++连接mysql

开发环境为VS2013，Mysql5.6，安装的都是默认目录

首先当然是用vs2013新建一个控制台项目啦，然后启动mysql数据库，这个就不描述了。

vc目录和cc区别">vc++目录和c/c++区别 c/c++, 附加库目录，代表的是c/c++文件编译时所需要的头文件，而资源编译时也是需要附加包含库目录的 vc++的包含目录，代表的是全局项目的包含目录 步骤1，选择项目的属性，VC++目录，库目录，添加lib目录

C:\Program Files (x86)\MySQL\MySQL Connector.C 6.1\lib

步骤2，选择项目的属性，VC++目录，库目录，添加头文件目录

C:\Program Files (x86)\MySQL\MySQL Connector.C 6.1\include

步骤3，添加库到附加依赖项

libmysql.lib

步骤4，复制libmysql.lib到项目中的Debug目录，这个Debug目录注意下，别弄错了

C:\Program Files (x86)\MySQL\MySQL Connector.C 6.1\lib\libmysql.lib

步骤5，新建cpp文件测试能不能连接mysq，此文件是网上搜到的，懒得写了

#include
#include
#include 
#include


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;
}

over啦