问题:运行的时候报错:无法启动此程序,因为计算机中丢失libmysql.dll
解决:libmysql.dll拷贝到项目的debug目录中。(我还将libmysql.lib放入debug目录)
问题:项目环境怎么配置
解答:点击项目->属性->vc++目录。修改include目录:C:\Program Files\MySQL\MySQL Server 5.5\include 修改lib目录:C:\Program Files\MySQL\MySQL Server 5.5\lib 链接器->输入->附加依赖项,把"libmysql.lib"写进去
//mysql所需的头文件和库文件
#include "stdafx.h"
#include <iostream>
#include <Winsock2.h>
#include "mysql.h"
#pragma comment(lib,"libmySQL.lib")
using namespace std;
int _tmain(int argc, _TCHAR* argv[])
{
MYSQL m_sqlCon;
MYSQL_RES *resultRES; //MYSQL结构
MYSQL_ROW row;
int result,CurrentRow;
mysql_init(&m_sqlCon); /* 初始化mysql结构*/
if(!mysql_real_connect(&m_sqlCon, "192.168.1.102","root","1234","mzmachineserver",3306,NULL,0))
{
cout<<"数据库连接失败!"<<endl;
}
else
{
cout<<"数据库连接成功!"<<endl;
/插入数据/
cout<<"插入数据"<<endl;
result = mysql_query(&m_sqlCon, "insert into patient(PatientID,number,name,sex,age) values('10030216','1113','ccc',1,40)");
if(result==false)
cout<<"插入数据失败"<<endl;
else
cout<<"插入数据成功"<<endl;
/查询数据/
if(mysql_query(&m_sqlCon,"select * from patient")) //为何要加这一行,经过测试发现少了这一行会有错误
{
cout<<"数据库查询发生错误"<<endl;
}
else
{
resultRES = mysql_store_result(&m_sqlCon);// 获得结果集
CurrentRow=1;
if(mysql_num_rows(resultRES)!= NULL)
{
int numRows = mysql_num_rows(resultRES); // 获得结果集中的记录数 row 行
int numFields = mysql_num_fields(resultRES);// 获得表中字段数
cout<<"共"<<numRows<<"行记录,每行"<<numFields<<"个字段"<<endl;
while (row = mysql_fetch_row(resultRES))
{
cout<<"第"<<CurrentRow<<"行:";
for (int CurrentFiled = 0; CurrentFiled<numFields; CurrentFiled++)
{
if(row[CurrentFiled]!=NULL)
cout<<row[CurrentFiled]<<" "; // 打印字段值
}
CurrentRow++;
cout<<endl;
}
}
else
{
cout<<"无查询结果!"<<endl;
}
mysql_free_result(resultRES); // 释放结果集
}
mysql_close(&m_sqlCon);
}
cout<<"谢谢使用"<<endl;
int stop;
cin>>stop;
return 0;
}
解决:libmysql.dll拷贝到项目的debug目录中。(我还将libmysql.lib放入debug目录)
问题:项目环境怎么配置
解答:点击项目->属性->vc++目录。修改include目录:C:\Program Files\MySQL\MySQL Server 5.5\include 修改lib目录:C:\Program Files\MySQL\MySQL Server 5.5\lib 链接器->输入->附加依赖项,把"libmysql.lib"写进去
//mysql所需的头文件和库文件
#include "stdafx.h"
#include <iostream>
#include <Winsock2.h>
#include "mysql.h"
#pragma comment(lib,"libmySQL.lib")
using namespace std;
int _tmain(int argc, _TCHAR* argv[])
{
MYSQL m_sqlCon;
MYSQL_RES *resultRES; //MYSQL结构
MYSQL_ROW row;
int result,CurrentRow;
mysql_init(&m_sqlCon); /* 初始化mysql结构*/
if(!mysql_real_connect(&m_sqlCon, "192.168.1.102","root","1234","mzmachineserver",3306,NULL,0))
{
cout<<"数据库连接失败!"<<endl;
}
else
{
cout<<"数据库连接成功!"<<endl;
/插入数据/
cout<<"插入数据"<<endl;
result = mysql_query(&m_sqlCon, "insert into patient(PatientID,number,name,sex,age) values('10030216','1113','ccc',1,40)");
if(result==false)
cout<<"插入数据失败"<<endl;
else
cout<<"插入数据成功"<<endl;
/查询数据/
if(mysql_query(&m_sqlCon,"select * from patient")) //为何要加这一行,经过测试发现少了这一行会有错误
{
cout<<"数据库查询发生错误"<<endl;
}
else
{
resultRES = mysql_store_result(&m_sqlCon);// 获得结果集
CurrentRow=1;
if(mysql_num_rows(resultRES)!= NULL)
{
int numRows = mysql_num_rows(resultRES); // 获得结果集中的记录数 row 行
int numFields = mysql_num_fields(resultRES);// 获得表中字段数
cout<<"共"<<numRows<<"行记录,每行"<<numFields<<"个字段"<<endl;
while (row = mysql_fetch_row(resultRES))
{
cout<<"第"<<CurrentRow<<"行:";
for (int CurrentFiled = 0; CurrentFiled<numFields; CurrentFiled++)
{
if(row[CurrentFiled]!=NULL)
cout<<row[CurrentFiled]<<" "; // 打印字段值
}
CurrentRow++;
cout<<endl;
}
}
else
{
cout<<"无查询结果!"<<endl;
}
mysql_free_result(resultRES); // 释放结果集
}
mysql_close(&m_sqlCon);
}
cout<<"谢谢使用"<<endl;
int stop;
cin>>stop;
return 0;
}