////包括多线程的使用，数据库的操作和打开文件对话框的使用。
#include "stdafx.h"
#include <windows.h>
#include <windowsx.h>
#include "resource.h"
#include "MainDlg.h"
#include <SQL.H>//连接库：odbc32.lib odbccp32.lib
#include <SQLEXT.H>//数据库头文件
#include <SQLTYPES.H>//数据库头文件
#include <COMMDLG.H>//OPENFILENAME 头文件
#include<STRING.H>
#define LOGIN_TIMEOUT 30
#define MAXBUFLEN 255
///#define CHECKDBSTMTERROR(hwnd,result,hstmt)
char szFile[MAX_PATH];
BOOL ImportStatus = FALSE; //导入状态标志
SQLHENV henv = NULL;
SQLHDBC hdbc = NULL;
SQLHSTMT hstmt = NULL;
SQLRETURN result;
SQLCHAR ConnStrIn[MAXBUFLEN] = "DRIVER={MySQL ODBC 5.1 Driver};SERVER=127.0.0.1;UID=root;PWD=123456;DATABASE=Test;CharSet=gbk;";
SQLCHAR ConnStrOut[MAXBUFLEN];
void ShowDBError(HWND hwnd,SQLSMALLINT type,SQLHANDLE sqlHandle)
{
char pStatus[10], pMsg[101];
SQLSMALLINT SQLmsglen;
char error[200] = {0};
SQLINTEGER SQLerr;
long erg2 = SQLGetDiagRec(type, sqlHandle,1,
(SQLCHAR *)pStatus,&SQLerr,(SQLCHAR *)pMsg,100,&SQLmsglen);
wsprintf(error,"%s (%d)\n",pMsg,(int)SQLerr);
MessageBox(hwnd,error,TEXT("数据库执行错误"),MB_ICONERROR|MB_OK);
}
void ShowDBConnError(HWND hwnd,SQLHDBC hdbc)
{
ShowDBError(hwnd,SQL_HANDLE_DBC,hdbc);
}
void ShowDBStmtError(HWND hwnd,SQLHSTMT hstmt)
{
ShowDBError(hwnd,SQL_HANDLE_STMT,hstmt);
}
//查检是否有错误
BOOL CHECKDBSTMTERROR(HWND hwnd,SQLRETURN result,SQLHSTMT hstmt)
{
if(SQL_ERROR==result)
{
ShowDBStmtError(hwnd,hstmt);
return TRUE;
}
else
{
return FALSE;
}
}
BOOL WINAPI Main_Proc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
switch(uMsg)
{
HANDLE_MSG(hWnd, WM_INITDIALOG, Main_OnInitDialog);
HANDLE_MSG(hWnd, WM_COMMAND, Main_OnCommand);
HANDLE_MSG(hWnd,WM_CLOSE, Main_OnClose);
}
return FALSE;
}
BOOL Main_OnInitDialog(HWND hwnd, HWND hwndFocus, LPARAM lParam)
{
return TRUE;
}
//选择文件
void openfile(HWND hwnd)
{
OPENFILENAME ofn;//定义一个OPENFILENAME类型的结构体。
ZeroMemory(&ofn,sizeof(ofn));//使用结构体变量前把该结构体变量各个位清零。
ofn.lStructSize = sizeof(ofn);
ofn.lpstrFile = szFile;
ofn.lpstrFile[0] = TEXT(‘\0‘);
ofn.nMaxFile = sizeof(szFile);
ofn.lpstrFilter = TEXT("ALL\0*.*\0文本文档\0*.TXT\0");
ofn.nFilterIndex = 2;
ofn.lpstrFileTitle = NULL;
ofn.nMaxFileTitle = 0;
ofn.lpstrInitialDir = NULL;
ofn.Flags = OFN_EXPLORER |OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
if (GetOpenFileName(&ofn))
{
SetDlgItemText(hwnd,IDC_FILEINFO,szFile);
}
}
BOOL inport_begin(HWND hwnd)
{
//分配环境句柄
result = SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &henv);
//设置管理环境属性
result = SQLSetEnvAttr(henv, SQL_ATTR_ODBC_VERSION, (void*)SQL_OV_ODBC3, 0);
//分配连接句柄
result = SQLAllocHandle(SQL_HANDLE_DBC, henv, &hdbc);
//设置连接属性
result = SQLSetConnectAttr(hdbc, SQL_LOGIN_TIMEOUT, (void*)LOGIN_TIMEOUT, 0);
//连接数据库
result = SQLDriverConnect(hdbc,NULL,ConnStrIn,SQL_NTS,ConnStrOut,MAXBUFLEN,(SQLSMALLINT *)0,SQL_DRIVER_NOPROMPT);
if(SQL_ERROR==result)
{
ShowDBConnError(hwnd,hdbc);
return FALSE;
}
ImportStatus = TRUE;
return TRUE;
}
DWORD WINAPI ThreadFunc(LPVOID lpParam) //多线程任务
{
HWND hwnd = (HWND)lpParam;
char str[50];
char fname[11];
char fage[11];
int age;
int i,j,k;
int IntoNum = 0;
//TCHAR temp[256];
TCHAR info[256];
FILE * Input;
for (i=0;szFile[i]!=‘\0‘;++i) //处理绝对路径
{
if (szFile[i]==‘\\‘)
{
szFile[i]=‘/‘;
}
}
if(strlen(szFile)==0){SetDlgItemText(hwnd,IDC_STATUS,"请选择文件！"); return 0;}
Input = fopen(szFile,"r"); //打开文本文档
BOOL hasError=FALSE;
/*创建新的数据库句柄，执行SQL语句*/
result = SQLAllocHandle(SQL_HANDLE_STMT, hdbc, &hstmt);
result = SQLPrepare(hstmt,(SQLCHAR *)"insert into T_Person(FName,FAge) values(?,?)",SQL_NTS);//两个占位符
SQLINTEGER iSQL_NTS=SQL_NTS;
while(!feof(Input)&&ImportStatus) //判断文件流是否到末尾，并判断导入标志的状态
{
ZeroMemory(fname,sizeof(fname)/sizeof(char));
ZeroMemory(fage,sizeof(fage)/sizeof(char));
ZeroMemory(str,sizeof(str)/sizeof(char));
//ZeroMemory(temp,sizeof(temp)/sizeof(TCHAR));
ZeroMemory(info,sizeof(info)/sizeof(TCHAR));
fgets(str,50,Input);
for (i=0,j=0,k=0;str[k]!=‘\0‘;++k) //将文件流中的姓名和年龄数据进行处理，存储到相应的变量中
{
if (str[k]>=‘A‘&&str[k]<=‘Z‘ || str[k]>=‘a‘&&str[k]<=‘z‘)
{
fname[i] = str[k];
++i;
}
else
{
if (str[k]>=‘0‘&&str[k]<=‘9‘)
{
fage[j] = str[k];
++j;
}
}
}
fname[i] = ‘\0‘;
fage[j] = ‘\0‘;
age = atoi(fage);
if(CHECKDBSTMTERROR(hwnd,result,hstmt)==TRUE) {hasError=TRUE;break;}
//给两个占位符赋值
SQLBindParameter(hstmt,1,SQL_PARAM_INPUT,SQL_C_CHAR,SQL_CHAR,strlen(fname),0,fname,0,&iSQL_NTS);
SQLBindParameter(hstmt,2,SQL_PARAM_INPUT,SQL_C_LONG,SQL_INTEGER,sizeof(int),0,&age,0,&iSQL_NTS);
result =SQLExecute(hstmt);
if(CHECKDBSTMTERROR(hwnd,result,hstmt)==TRUE) {hasError=TRUE;break;}
Sleep(30);
wsprintf(info,TEXT("正在导入第%d条数据"),++IntoNum);
SetDlgItemText(hwnd,IDC_STATUS,info);
}
fclose(Input);
SQLFreeStmt(hstmt,SQL_CLOSE);
SQLDisconnect(hdbc); //如果到达末尾，跳出，并关闭数据库
SQLFreeHandle(SQL_HANDLE_DBC,hdbc);
SQLFreeHandle(SQL_HANDLE_ENV,henv);
if(hasError==TRUE)
{
SetDlgItemText(hwnd,IDC_STATUS,TEXT("数据库操作出错，取消导入！"));
}
else if (ImportStatus)
{
SetDlgItemText(hwnd,IDC_STATUS,TEXT("恭喜您，所有的数据都已经导入成功！"));
}
else
{
SetDlgItemText(hwnd,IDC_STATUS,TEXT("您已经取消了数据库的导入！"));
}
return 0;
}
void Main_OnCommand(HWND hwnd, int id, HWND hwndCtl, UINT codeNotify)
{
switch(id)
{
case IDC_OK:
{
if(inport_begin(hwnd))
{
CreateThread(NULL,0,ThreadFunc,hwnd,0,0); //开始使用多线程调用函数
}
else
{
SetDlgItemText(hwnd,IDC_STATUS,TEXT("数据库连接出错，取消导入！"));
}
break;
}
case IDC_CANCEL:
{
ImportStatus = FALSE;
break;
}
case IDC_FILEOPEN:
openfile(hwnd);
break;
default:
break;
}
}
void Main_OnClose(HWND hwnd)
{
EndDialog(hwnd, 0);
}