linux环境下写C++操作mysql

Posted 2022-01-30 wanghao-boke

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/*****************
connect.cpp
g++ connect.cpp -o connect -I /usr/include/mysql/ -L /usr/lib/mysql/ -lmysqlclient
****************/

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include"mysql.h"


class CMysqlInterface

    public:
        CMysqlInterface();
        ~CMysqlInterface();
        
        void mysqlLibInit();
        void mysqlLibDestroy();
        int Connect();
        int Close();

    private:
        MYSQL *m_mysqlPtr;
;

int main()

    printf("version 1.1\n");
    int iRet = -1;
    CMysqlInterface MysqlObj;
    
    iRet = MysqlObj.Connect();
    if(0 == iRet)
    
        printf("mysql_real_connect success\n");
    
    else
    
        printf("mysql_real_connect failed\n");
    
    return 0;


CMysqlInterface::CMysqlInterface()

    printf("CMysqlInterface\n");
    m_mysqlPtr = NULL;
    m_mysqlPtr = mysql_init(NULL);


CMysqlInterface::~CMysqlInterface()

    Close();



int CMysqlInterface::Close()

    int iRet = 0;
    
    if(NULL != m_mysqlPtr)
    
        mysql_close(m_mysqlPtr);
        m_mysqlPtr = NULL;
    
    return iRet;


void CMysqlInterface::mysqlLibDestroy()

    mysql_library_end();


int CMysqlInterface::Connect()
    
    printf("Connect\n");
    int iRet = -1;
    m_mysqlPtr = mysql_real_connect(m_mysqlPtr,"localhost","root","csql","child",0,NULL,0);
    if(m_mysqlPtr)
    
        iRet = 0;
    
    return iRet;