vc连接mysql数据库的简单例子程序资源-CSDN文库

共22个文件

h：4个

cpp：3个

opt：2个

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在VC++环境中，连接MySQL数据库并进行数据操作是常见的任务，尤其在开发Windows应用程序时。以下是一个关于如何在VC++中使用MySQL数据库的详细步骤和知识点： 1. **安装MySQL驱动程序**: 你需要下载并安装MySQL的C++连接器（如MySQL Connector/C++），它提供了VC++与MySQL数据库之间的接口。安装后，确保将其包含在你的项目路径中，以便编译器可以找到所需的库文件。 2. **包含必要的头文件**: 在你的源代码中，需要包含MySQL Connector/C++的头文件，例如`#include <mysql_driver.h>` 和 `#include <mysql_connection.h>`。这些头文件提供了连接数据库、执行SQL语句等操作所需的类和函数。 3. **连接到MySQL服务器**: 使用`sql::mysql::MySQL_Driver::get_instance()`获取数据库驱动实例，然后创建一个`sql::Connection`对象来代表数据库连接。需要提供服务器地址、端口号、用户名、密码以及数据库名称，例如： ```cpp sql::mysql::MySQL_Driver *driver; sql::Connection *conn; driver = sql::mysql::get_mysql_driver_instance(); conn = driver->connect("tcp://127.0.0.1:3306", "username", "password"); ``` 4. **选择数据库**: 连接成功后，你可以选择要操作的数据库，通过`USE`命令实现： ```cpp conn->setSchema("your_database_name"); ``` 5. **执行SQL语句**: VC++中，可以使用`sql::Statement`对象来执行SQL语句。例如，创建一个表： ```cpp sql::Statement *stmt = conn->createStatement(); stmt->execute("CREATE TABLE IF NOT EXISTS students (id INT AUTO_INCREMENT PRIMARY KEY, name VARCHAR(100), age INT)"); ``` 6. **读取数据**: 你可以使用`sql::ResultSet`对象来获取查询结果。例如，查询所有学生： ```cpp sql::ResultSet *res = stmt->executeQuery("SELECT * FROM students"); while (res->next()) { std::cout << "ID: " << res->getInt("id") << ", Name: " << res->getString("name") << ", Age: " << res->getInt("age") << std::endl; } ``` 7. **插入数据**: 调用`executeUpdate`方法插入新记录： ```cpp stmt->executeUpdate("INSERT INTO students (name, age) VALUES ('John Doe', 25)"); ``` 8. **删除数据**: 同样使用`executeUpdate`方法，但这次是`DELETE`语句： ```cpp stmt->executeUpdate("DELETE FROM students WHERE id = 1"); ``` 9. **关闭连接**: 完成所有操作后，记得关闭连接以释放资源： ```cpp delete stmt; delete conn; ``` 在“MySqlDemo”这个示例程序中，你可能会看到这些功能的具体实现。每个功能都会对应一个函数，如`connectToDatabase()`, `createTable()`, `readData()`, `insertData()`, `deleteData()`等，分别完成上述步骤。这个程序可以帮助初学者理解如何在VC++环境中与MySQL数据库进行交互，并提供了基础的数据操作功能。注意：在实际应用中，还需要考虑错误处理、事务管理、连接池等高级特性，以及使用预编译语句防止SQL注入等问题。在生产环境中，推荐使用ORM（对象关系映射）框架，如Qt的QSql或Boost的SQL库，来简化数据库操作。

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vc连接mysql数据库的简单例子程序,实现读取,插入,删除等功能-MySqlvc.rar （22个子文件）

MySqlDemo

StdAfx.cpp 211B

MySqlDemo.dsp 4KB

MySqlDemo.plg 2KB

MySqlDemo.opt 54KB

MySqlDemoDlg.h 2KB

MySqlDemo.h 1KB

MySqlDemo.aps 21KB

ReadMe.txt 4KB

StdAfx.h 1KB

libmySQL.lib 25KB

MySqlDemo.clw 2KB

Resource.h 1008B

MySqlDemo.dsw 543B

MySqlDemo.ncb 73KB

mydb

mytable.frm 8KB

db.opt 65B

res

MySqlDemo.ico 1KB

MySqlDemo.rc2 401B

MySqlDemoDlg.cpp 8KB

MySqlDemo.rc 6KB

MySqlDemo.cpp 2KB

libmySQL.dll 428KB

======================================================================== MICROSOFT FOUNDATION CLASS LIBRARY : MySqlDemo ======================================================================== AppWizard has created this MySqlDemo application for you. This application not only demonstrates the basics of using the Microsoft Foundation classes but is also a starting point for writing your application. This file contains a summary of what you will find in each of the files that make up your MySqlDemo application. MySqlDemo.dsp This file (the project file) contains information at the project level and is used to build a single project or subproject. Other users can share the project (.dsp) file, but they should export the makefiles locally. MySqlDemo.h This is the main header file for the application. It includes other project specific headers (including Resource.h) and declares the CMySqlDemoApp application class. MySqlDemo.cpp This is the main application source file that contains the application class CMySqlDemoApp. MySqlDemo.rc This is a listing of all of the Microsoft Windows resources that the program uses. It includes the icons, bitmaps, and cursors that are stored in the RES subdirectory. This file can be directly edited in Microsoft Visual C++. MySqlDemo.clw This file contains information used by ClassWizard to edit existing classes or add new classes. ClassWizard also uses this file to store information needed to create and edit message maps and dialog data maps and to create prototype member functions. res\MySqlDemo.ico This is an icon file, which is used as the application's icon. This icon is included by the main resource file MySqlDemo.rc. res\MySqlDemo.rc2 This file contains resources that are not edited by Microsoft Visual C++. You should place all resources not editable by the resource editor in this file. ///////////////////////////////////////////////////////////////////////////// AppWizard creates one dialog class: MySqlDemoDlg.h, MySqlDemoDlg.cpp - the dialog These files contain your CMySqlDemoDlg class. This class defines the behavior of your application's main dialog. The dialog's template is in MySqlDemo.rc, which can be edited in Microsoft Visual C++. ///////////////////////////////////////////////////////////////////////////// Other standard files: StdAfx.h, StdAfx.cpp These files are used to build a precompiled header (PCH) file named MySqlDemo.pch and a precompiled types file named StdAfx.obj. Resource.h This is the standard header file, which defines new resource IDs. Microsoft Visual C++ reads and updates this file. ///////////////////////////////////////////////////////////////////////////// Other notes: AppWizard uses "TODO:" to indicate parts of the source code you should add to or customize. If your application uses MFC in a shared DLL, and your application is in a language other than the operating system's current language, you will need to copy the corresponding localized resources MFC42XXX.DLL from the Microsoft Visual C++ CD-ROM onto the system or system32 directory, and rename it to be MFCLOC.DLL. ("XXX" stands for the language abbreviation. For example, MFC42DEU.DLL contains resources translated to German.) If you don't do this, some of the UI elements of your application will remain in the language of the operating system. /////////////////////////////////////////////////////////////////////////////

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