(3).数据库操作类声明(include/dbhelper.h)源码

#ifndef _DBHELPER_H_

#define _DBHELPER_H_

#include

#include

#include

#include

#include

#include

#include"fields.h"

#include

using namespace std;

/*类型定义*/

typedef vector ResultType;  //结果集类型

typedef vector >  FieldType; //字段类型

typedef vector ListType; //一维类型

class DbHelper

{

private: //数据成员

MYSQL *db; //数据库操作符

bool isconn; //是否成功连接

bool isinit; //是否成功初始化

Fields *connect_arg; //连接参数

ResultType result; //结果集

FieldType fields; //字段列表

unsigned int num_fields; //字段数

bool hasresults; //是否有结果集

public: //函数

DbHelper(char *user,char *pass,char *server="localhost",unsigned int port=3306,

char *defaultDb="test",char *socket=NULL,unsigned int flag=0);

DbHelper(Fields &conf);

DbHelper(const DbHelper &d);

~DbHelper();

/*获取*/

bool getIsConn()const{  return  isconn;}

bool getIsInit()const{  return  isinit;}

Fields & getConnArg()const{ return *connect_arg;}

ResultType getResults()const{   return result;}

FieldType getFields()const{     return fields;}

unsigned int getFieldNums()const{       return num_fields;}

bool hasResults()const{ return hasresults;}

/*设置*/

void setIsConn(bool f=false){   isconn=f;}

void setIsInit(bool f=false){   isinit=f;}

void setConnArg(Fields &arg){   *connect_arg=arg;}

void setHasResults(bool f=false){       hasresults=f;}

void Init();

void Connect();

void DisConnect();

void ReConnect();

bool execSQL(char *sql);

void show();

void showField();

void showList(ListType::iterator beg,ListType::iterator end);

void freeResult();

bool useDb(char *database);

char *currentDb();

ListType listDbs();

ListType getEachRow(ResultType::iterator beg,ResultType::iterator end);

/*友元<

friend ostream & operator<

};

#endif