C++写的一个MYSQL控制台(5)

(5).主程序(main.cpp)源码

 

#include"include/dbhelper.h"
#include"include/fields.h"
#include<iostream>
#define SIZE 50

int main(int argc,char **argv)
{
        char user[SIZE];
        char pass[SIZE];
        char host[SIZE];
        unsigned int port=3306;

        if(argc<2)
        {
                //不带参数登陆localhost:3306
                cout<<"输入用户名:";
                cin.get(user,SIZE).get();
                cout<<"输入密码:";
                cin.get(pass,SIZE);
                strcpy(host,"localhost");
        }
        else if(argc==2)
        {       //输入了主机 端口号默认为3306
                cout<<"输入用户名:";
                cin.get(user,SIZE).get();
                cout<<"输入密码:";
                cin.get(pass,SIZE);
                strcpy(host,argv[1]);
        }
        else
        {
                //输入了主机，端口号
                cout<<"输入用户名:";
                cin.get(user,SIZE).get();
                cout<<"输入密码:";
                cin.get(pass,SIZE);
                strcpy(host,argv[1]);
                port=atoi(argv[2]);
        }

        Fields conf=Fields(user,pass,port,host);
        DbHelper db(conf);
        if(db.getIsConn())

        {
                while(1)
                {
                        cout<<"输入SQL命令:(quit)退出\n";
                        string sql;
                        getline(cin,sql);
                        if(sql=="quit") break;
                        char *realsql=new char[sql.size()+1];
                        strcpy(realsql,sql.c_str());
                        if(db.execSQL(realsql))
                        {
                                db.showField();
                                cout<<db<<endl;
                        }
                        else
                        {
                                cout<<"执行语句:"<<sql<<"失败\n";
                        }
                        delete [] realsql;
                }
                cout<<"Bye!\n";
        }
        else
        {
                cout<<"连接失败:\n";
                cout<<"连接信息如下:\n\n";
                cout<<db.getConnArg()<<endl;
        }
        return 0;
}

 

好了，源码都完成了

接下来

(1).使用ls -Rl 命令查看结构

(2).编译

     进入源码目录

     执行

    g++ main.cpp dbhelper.cpp fields.cpp $(/usr/local/lnmp/mysql/bin/mysql_config --libs --cflags)

    上面命令执行完后会在当前目录中生成一个可执行文件 a.out

(3).运行

     ./a.out

    会提示输入用户名和密码 (输入你的mysql服务器连接的用户名和密码)

    成功连接后就能执行SQL命令了。

 

程序功能还很少，以后慢慢完善。