myado.cpp

数据库连接

#import "c:\program files\common files\system\ado\msado15.dll" \
	no_namespace rename ("EOF", "EndOfFile") 

#include<iostream>
#include <icrsint.h>
#include <Stdio.h>
#include <string>
using namespace std;


//_COM_SMARTPTR_TYPEDEF 宏定义了一个_com_ptr_t类型的智能（smart）指针IADORecordBingingPtr
_COM_SMARTPTR_TYPEDEF(IADORecordBinding,_uuidof(IADORecordBinding)); 

//测试函数
inline void TESTHR(HRESULT _hr)
{
	if FAILED(_hr)_com_issue_error(_hr);
	 //  FAILED(Status) ((HRESULT)(Status)<0)
}


struct model_info
{   int  m_id;//模型ID
	string m_name;//模型名称
    float point_x;//点的三维x y z坐标
	float point_y;
	float point_z;
	string m_locate;//存储的相对路径
	int m_property;//模型属性
	float hit_range;//碰撞检测范围
	string by_user;//模型所属用户名
	model_info *next;
};


class CCustomRs: public CADORecordBinding
{

	//开始进行数据类型绑定
	BEGIN_ADO_BINDING(CCustomRs)
        ADO_NUMERIC_ENTRY(1,adInteger,m_ch_aname, 0, 1,m_ul_anameStatus, true)
		ADO_VARIABLE_LENGTH_ENTRY2(2,adVarChar,m_ch_bname,sizeof(m_ch_bname),m_ul_bnameStatus,false)
        ADO_FIXED_LENGTH_ENTRY2(3,adDouble,m_ch_cname,m_ul_cnameStatus,true)
	    ADO_FIXED_LENGTH_ENTRY2(4,adDouble,m_ch_dname,m_ul_dnameStatus,true)
		ADO_FIXED_LENGTH_ENTRY2(5,adDouble,m_ch_ename,m_ul_enameStatus,true)
	    ADO_VARIABLE_LENGTH_ENTRY2(6,adVarChar,m_ch_fname,sizeof(m_ch_fname),m_ul_fnameStatus,false)
		ADO_FIXED_LENGTH_ENTRY2(3,adDouble,m_ch_gname,m_ul_gnameStatus,true)
        ADO_NUMERIC_ENTRY(7,adInteger,m_ch_gname, 4, 1.0000,m_ul_gnameStatus, true)
	    ADO_FIXED_LENGTH_ENTRY2(3,adDouble,m_ch_hname,m_ul_hnameStatus,true)
		ADO_VARIABLE_LENGTH_ENTRY2(7,adVarChar,m_ch_iname,sizeof(m_ch_iname),m_ul_inameStatus,false)
     //结束绑定  
     END_ADO_BINDING()

public:
    //定义上述宏中用到的C/C++变量
	int m_ch_aname;
	char m_ch_bname[22];
	double m_ch_cname;
	double m_ch_dname;
	double m_ch_ename;
	char m_ch_fname[22];
	int m_ch_gname;
	double m_ch_hname;
	char m_ch_iname[22];

    long m_ul_anameStatus;
    long m_ul_bnameStatus;
	long m_ul_cnameStatus;
    long m_ul_dnameStatus;
	long m_ul_enameStatus;
    long m_ul_fnameStatus;
	long m_ul_gnameStatus;
    long m_ul_hnameStatus;
	long m_ul_inameStatus;
};



class executedb 
	{ 
public:  char str[200];
         model_info *head;
		 model_info *p1,*p2;
		 int n;//
	     string str1,str2,str3,str4;
		 int id,property;
		 float _x,_y,_z,_range;
public :
	model_info *search()
 {
   try
	{
		 p1=p2=new model_info;
		 head=NULL;
		 n=0;

		_RecordsetPtr pRs("ADODB.Recordset");

		CCustomRs  rs;
         

		IADORecordBindingPtr  picRs(pRs);
        
		pRs->Open(str,"dsn=ourdb;uid=;pwd=;",
			adOpenStatic,
			adLockOptimistic,adCmdText);
	          
	   	 TESTHR(picRs->BindToRecordset(&rs));
         
		while(!pRs->EndOfFile)
		{     
			  //给节点赋值 
			    id=rs.m_ch_aname;
                str1=rs.m_ch_bname;
				_x=rs.m_ch_cname;
                _y=rs.m_ch_dname;
				_z=rs.m_ch_ename;
				str2=rs.m_ch_fname;
				property=rs.m_ch_gname;
                _range=rs.m_ch_hname;
				str3=rs.m_ch_iname;
				
				
			
			//	printf("Username=%s %s\n",
			//	(rs.m_ul_bnameStatus==adFldOK?rs.m_ch_bname:"error"),
			//	(rs.m_ul_fnameStatus==adFldOK?rs.m_ch_fname:"error"));
                //将取得的值放在一个链表里面~~
				p1->m_id=id;
				p1->m_name=str1;
				p1->point_x=_x;
				p1->point_y=_y;
				p1->point_z=_z;
				p1->m_locate= str2;
				p1->m_property=property;
				p1->hit_range=_range;
				p1->by_user=str3;



				n=n+1;
		        if (n==1) head=p1;
				else p2->next=p1;
				p2=p1;
                p1=new model_info;
		 	    pRs->MoveNext();
	            
		}
		p2->next=NULL;
		pRs->Close();
        return(head);
		}
	catch(_com_error  &e)
	{
		printf("Error:\n");
		printf("COde=%081x\n",e.Error());
		printf("MEANING=%s\n",e.ErrorMessage());
	}
        
 }
 void executedb::insert()
 {
   try
	{
		
		_RecordsetPtr pRs("ADODB.Recordset");

		CCustomRs  rs;
         

		IADORecordBindingPtr  picRs(pRs);
        
		pRs->Open(str,"dsn=ourdb;uid=;pwd=;",
			adOpenStatic,
            	adLockOptimistic,adCmdText);
	}
	catch(_com_error  &e)
	{
		printf("Error:\n");
		printf("COde=%081x\n",e.Error());
		printf("MEANING=%s\n",e.ErrorMessage());
	}
 }
void executedb::updates()
 {
   try
	{
		
		_RecordsetPtr pRs("ADODB.Recordset");

		CCustomRs  rs;
         

		IADORecordBindingPtr  picRs(pRs);
        
		pRs->Open(str,"dsn=ourdb;uid=;pwd=;",
			adOpenStatic,
			adLockOptimistic,adCmdText);
	
	}
	catch(_com_error  &e)
	{
		printf("Error:\n");
		printf("COde=%081x\n",e.Error());
		printf("MEANING=%s\n",e.ErrorMessage());
	}
 }
void executedb::dele()
 {
   try
	{
		_RecordsetPtr pRs("ADODB.Recordset");
		CCustomRs  rs;
         IADORecordBindingPtr  picRs(pRs);
        //调用_Recordset的Open方法取得Recordset对象
		pRs->Open(str,"dsn=ourdb;uid=;pwd=;",
			adOpenStatic,
			adLockOptimistic,adCmdText);

	}
	catch(_com_error  &e)
	{
		printf("Error:\n");
		printf("COde=%081x\n",e.Error());
		printf("MEANING=%s\n",e.ErrorMessage());
	}
 }

};

void main(void){
	 
	 //初始化COM对象
	 ::CoInitialize(NULL);//
     executedb* execu;
	 execu=new executedb;

	 strcpy(execu->str,"select * from model_info");
	 //strcpy(execu->str,"insert into model_info values('2','hehe','1.1','1.1','1.1','wo','2','2.2','dfddd')");
     //execu->insert();	
	 model_info *head;
	 head=execu->search(); 
	 
	 //以下注释掉的是 测试链表里面是否有值
	 model_info *p;
     p=head;
 	 string st;
	 if(head!=NULL)
      
			do
	 { 
    cout<<"模型id  :    "<<p->m_id<<endl;		  
	cout<<"模型名称:    "<<p->m_name<<endl;
    cout<<"x坐标:	    "<<p->point_x<<endl;
	cout<<"y坐标:	    "<<p->point_y<<endl;
	cout<<"z坐标:	    "<<p->point_z<<endl;
	cout<<"路径:		"<<p->m_locate<<endl;
	cout<<"属性:	    "<<p->m_property<<endl;
	cout<<"范围:		"<<p->hit_range<<endl;
	cout<<"所属用户:    "<<p->by_user<<endl;
		 p=p->next;
		 }while(p!=NULL);
   
	 //清除COM对象实例
   	::CoUninitialize();
}