Home > Database > Mysql Tutorial > body text

Linux下C语言处理MySQL数据库示例程序

WBOY
Release: 2016-06-07 16:53:56
Original
1079 people have browsed it

Linux下C语言处理MySQL数据库示例程序,花了n久的时间终于搞清楚了,丫丫的,真麻烦编译:引用g++ -Imysql/include -Lmysql/lib

Linux下C语言处理MySQL数据库示例程序,花了n久的时间终于搞清楚了,丫丫的,真麻烦

编译:

引用

g++ -Imysql/include -Lmysql/lib -o a.out a.cpp -lmysqlclient -lz

这个mysql目录是某个mysql的源码目录,,如果有安装mysql-devel可能是在/usr/ooxx/mysql,没有的话自己去down源码

#include

#include

#include

#include"mysql.h"

using namespace std;

MYSQL * conn = NULL; //MySQL连接句柄

//读取配置

bool read_conf(string &dbhost,

string &dbuser,

string &dbpass,

string &dbname){

ifstream is("judge.conf");

is >> dbhost >> dbuser >> dbpass >> dbname;

return true;

}

bool query(){

int status, state, state2;

MYSQL_RES * res;

MYSQL_ROW   row;

string cmd;

MYSQL *conn, mysql;

string dbhost, dbuser, dbpass, dbname;

if(read_conf(dbhost,dbuser, dbpass, dbname)){ //读取数据库

if (mysql_init(&mysql) == NULL){

fprintf(stderr, "初始化错误\n");

return false;

}

conn = mysql_real_connect(&mysql, dbhost.c_str(), dbuser.c_str(),

dbpass.c_str(), dbname.c_str(), NULL,

"/var/run/mysqld/mysqld.sock", 0);

if(conn == NULL){ //连接失败

fprintf(stderr, "连接失败!\n");

return false;

}

}else{ //读取配置失败

fprintf(stderr, "读取配置失败!\n");

return false;

}

cmd = "SELECT OOXX FROM OOXX";

cout

state = mysql_query(conn, cmd.c_str());

cout

if(state != 0){//查询出错

fprintf(stderr, "%s\n", mysql_error(conn));

return false;

}

res = mysql_store_result(conn);

cout affected_rows

while(row = mysql_fetch_row(res), row != NULL){

printf("%s\n", row[0]);

}

return true;

}

int main(){

query();

return 0;

}

如果觉得这篇文章对你有用,请在下面留个言让我知道,非常感谢^_^

转载请注明出自 ?1505 (如是转载文则注明原出处),谢谢:)

linux

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn:Public welfare online PHP training,Help PHP learners grow quickly!