mfc 文件 文件夹操作大全
来源：互联网 发布：手机怎么看淘宝店铺 编辑：程序博客网 时间：2024/05/22 11:35
1.创建文件夹
CreateDirectory(%%1,NULL);
2.创建文件
CFile file;
file.Open(%%1,CFile::modeCreate|CFile::modeWrite);
3.删除文件
DeleteFile(%%1);
4.删除文件夹
RemoveDirectory(%%1);
5.删除一个目录下所有的文件夹
CFileFind finder;
CString path;
path.Format("%s\\*.*",%%1);
BOOL bWorking = finder.FindFile(path);
while (bWorking)
{
bWorking = finder.FindNextFile();
if (finder.IsDirectory())
{
RemoveDirectory(finder.GetFilePath());
}
}
6.清空文件夹
RemoveDirectory(%%1);
CreateDirectory(%%1,NULL);
7.读取文件
char sRead[5120];
CFile mFile(_T(%%1),CFile::modeRead);
while (sRead!=NULL)
{
mFile.Read(sRead,5120);
CString %%2(sRead);
%%3
}
mFile.Close();
if (GetLastError() == ERROR_NO_MORE_FILES)
{
//遍历文件夹完成
fFinished = TRUE;
}
else
{
//找不到下一个文件
return;
}
}
}
FindClose(hSearch);
}
}
15.移动文件夹
WIN32_FIND_DATA FileData;
HANDLE hSearch;
DWORD dwAttrs;
char szDirPath[] = %%2;
char szNewPath[MAX_PATH];
char szHome[MAX_PATH];
BOOL fFinished = FALSE;
if (!CreateDirectory(szDirPath, NULL))
{
//不能创建新的目录
return;
}
CString path;
path.Format("%s\\*.*",%%1);
hSearch = FindFirstFile(path, &FileData);
if (hSearch == INVALID_HANDLE_VALUE)
{
return;
}
while (!fFinished)
{
lstrcpy(szNewPath, szDirPath);
lstrcat(szNewPath, FileData.cFileName);
if (CopyFile(FileData.cFileName, szNewPath, FALSE))
{
dwAttrs = GetFileAttributes(FileData.cFileName);
if (!(dwAttrs & FILE_ATTRIBUTE_READONLY))
{
SetFileAttributes(szNewPath,
dwAttrs | FILE_ATTRIBUTE_READONLY);
}
}
else
{
//不能复制文件
return;
}
if (!FindNextFile(hSearch, &FileData))
{
if (GetLastError() == ERROR_NO_MORE_FILES)
{
//遍历文件夹完成
fFinished = TRUE;
}
else
{
//找不到下一个文件
return;
}
}
}
FindClose(hSearch);
RemoveDirectory(%%1); 16.移动一个文件夹下所有的文件夹到另一个目录下
WIN32_FIND_DATA FileData;
HANDLE hSearch;
DWORD dwAttrs;
char szDirPath[] = %%2;
char szNewPath[MAX_PATH];
char szHome[MAX_PATH];
BOOL fFinished = FALSE;
if (!CreateDirectory(szDirPath,NULL))
{
//不能创建新的目录
return;
}
CString path;
path.Format("%s\\*.*",%%1);
BOOL bWorking = finder.FindFile(path);
while (bWorking)
{
bWorking = finder.FindNextFile();
if(finder.IsDirectory()){
hSearch = FindFirstFile(finder.GetFilePath()+"\\*.*", &FileData);
if (hSearch == INVALID_HANDLE_VALUE)
{
return;
}
while (!fFinished)
{
lstrcpy(szNewPath, szDirPath);
lstrcat(szNewPath, FileData.cFileName);
if (CopyFile(FileData.cFileName, szNewPath, FALSE))
{
dwAttrs = GetFileAttributes(FileData.cFileName);
if (!(dwAttrs & FILE_ATTRIBUTE_READONLY))
{
SetFileAttributes(szNewPath,
dwAttrs | FILE_ATTRIBUTE_READONLY);
}
}
else
{
//不能复制文件
return;
}
if (!FindNextFile(hSearch, &FileData))
{
if (GetLastError() == ERROR_NO_MORE_FILES)
{
//遍历文件夹完成
fFinished = TRUE;
}
else
{
//找不到下一个文件
return;
}
}
}
FindClose(hSearch);
RemoveDirectory(finder.GetFilePath().GetBuffer(0));
}
} 17.以一个文件夹的框架在另一个目录创建文件夹和空文件
WIN32_FIND_DATA FileData;
HANDLE hSearch;
DWORD dwAttrs;
char szDirPath[] = %%2;
char szNewPath[MAX_PATH];
char szHome[MAX_PATH];
BOOL fFinished = FALSE;
if (!CreateDirectory(szDirPath, NULL))
{
//不能创建新的目录
return;
}
CString path;
path.Format("%s\\*.*",%%1);
hSearch = FindFirstFile(path, &FileData);
if (hSearch == INVALID_HANDLE_VALUE)
{
return;
}
while (!fFinished)
{
lstrcpy(szNewPath, szDirPath);
lstrcat(szNewPath, FileData.cFileName);
HANDLE hFile=CreateFileHandle hFile=CreateFile(szNewPath,GENERIC_READ,FILE_SHARE_READ,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL|FILE_FLAG_SEQUENTIAL_SCAN,NULL);
if(!hFile)
{
//不能创建文件
return;
}
if (!FindNextFile(hSearch, &FileData))
{
if (GetLastError() == ERROR_NO_MORE_FILES)
{
//遍历文件夹完成
fFinished = TRUE;
}
else
{
//找不到下一个文件
return;
}
}
}
FindClose(hSearch);
18.复制文件
CopyFile(%%1,%%2,true);19.复制一个文件夹下所有的文件到另一个目录
//#include <string>
using std::string;
char sep='/';
#ifdef _WIN32
sep='\\';
#endif
CFileFind finder;
CString path;
path.Format("%s\\*.*",%%1);
BOOL bWorking = finder.FindFile(path);
while (bWorking)
{
bWorking = finder.FindNextFile();
if(!finder.IsDirectory() || finder.IsDots()){
string s(finder.GetFileName());
CString sourcefile(%%1);
if(s.rfind(sep,s.length())!=string::npos)
{
sourcefile=sourcefile+"//"+s.substr(i+1,s.length()-i);
CString targetfile(s.substr(i+1,s.length()-i));
targetfile=%%2+"//"+targetfile/;
CopyFile(sourcefile.GetBuffer(0),targetfile.GetBuffer(0),true);
}
}
}
20.提取扩展名
CString path(%%1);
CString %%2=path.Mid(path.ReverseFind('.'));
21.提取文件名
CString path(%%1);
CString %%2=path.Mid(path.ReverseFind('\\')+1);
22.提取文件路径
char appName[MAX_PATH];
GetModualFileName(NULL,appName,MAX_PATH);23.替换扩展名
//#include <string>
using std::string;
string s(%%1);
string newExt(%%2);
string::size_type i=s.rfind('.',s.length());
if(i!=string::npos)
s.replace(i+1,newExt.length(),newExt);
CString %%3(s);
24.追加路径
/*
#include <string>
#include <cstdlib>
#include <boost/filesystem/operations.hpp>
#include <boost/filesystem/fstream.hpp>
*/
using namespace std;
using namespace boost::filesystem;
try {
path p1=complete(path(%%2,native),
path(%%1,native));
path p2=system_complete(path(%%2,native));
CString %%3(p3);
}
catch(exception& e){
//e.what();
}
25.移动文件
MoveFile(%%1,%%2); 26.移动一个文件夹下所有文件到另一个目录
//#include <string>
using std::string;
char sep='/';
#ifdef _WIN32
sep='\\';
#endif
CFileFind finder;
CString path;
path.Format("%s\\*.*",%%1);
BOOL bWorking = finder.FindFile(path);
while (bWorking)
{
bWorking = finder.FindNextFile();
if(!finder.IsDirectory() || finder.IsDots()){
string s(finder.GetFileName());
CString sourcefile(%%1);
if(s.rfind(sep,s.length())!=string::npos)
{
sourcefile=sourcefile+"//"+s.substr(i+1,s.length()-i);
CString targetfile(s.substr(i+1,s.length()-i));
targetfile=%%2+"//"+targetfile/;
MoveFile(sourcefile.GetBuffer(0),targetfile.GetBuffer(0),true);
}
}
}
27.指定目录下搜索文件
CString strFileTitle;
CFileFind finder;
BOOL bWorking = finder.FindFile(%%1); //"C:\\windows\\sysbkup\\*.cab"
while(bWorking)
{
bWorking=finder.FindNextFile();
strFileTitle=finder.GetFileTitle();
} 28.打开对话框
CFileDialog mFileDlg(TRUE,NULL,NULL,OFN_HIDEREADONLY|OFN_OVERWRITEPROMPT|OFN_ALLOWMULTISELECT,"All Files (*.*)|*.*||",AfxGetMainWnd());
CString str(" ",10000);
mFileDlg.m_ofn.lpstrFile=str.GetBuffer(10000);
str.ReleaseBuffer();
POSITION mPos=mFileDlg.GetStartPosition();
CString pathName(" ",128);
CFileStatus status;
while(mPos!=NULL)
{
pathName=mFileDlg.GetNextPathName(mPos);
CFile::GetStatus( pathName, status );
}
29.文件分割
CFile m_File;
CString m_Filename,m_FileTitle,m_FilePath;
m_FileName=%%1;
char pBuf[4096];
if(m_File.Open(m_FileName,CFile::modeRead | CFile::shareDenyWrite))
{
m_FileName=m_File.GetPathName();
m_FileTitle=m_File.GetFileTitle();
DWORD FileLength=m_File.GetLength();
DWORD PartLength=FileLength/2+FileLength%2;
int nCount=1;
CString strName;
CFile wrFile;
DWORD ReadBytes;
while(true)
{
ReadBytes=m_File.Read(pBuf,PartLength);
strName.Format("%s%d",m_FIleTitle,nCount);
wrFile.Open(strName,CFile::modeWrite | CFile::modeCreate);
wrFile.Write(pBuf,ReadBytes);
wrFile.Close();
if(ReadBytes<PartLength)
break;
nCount++;
}
m_File.Close();
}
else
AfxMessageBox("不能打开文件"); 30.文件合并
//#include <string>
using std::string;
string s(%%1);
char sep='/';
#ifdef _WIN32
sep='\\';
#endif
size_t sz=s.rfind(sep,s.length());
if(sz!=string::npos)
{
CFile Out;
CString strFilename(s.substr(i+1,s.length()-i));
if(Out.Open(%%2+"//"+strfilename,cfile::modewrite%7ccfile::modecreate)){
for(int i=1;i<=2;i++)
{
CString Filename;
Filename.Format("%s//%s%d",%%2,strfilename,atoi(i));
CFile In;
if(In.Open(Filename,CFile::modeRead)){
char cbBuffer[4096];
int nFilesize=In.GetLength();
while(nFilesize>0){
int nSize=sizeof(cbBuffer);
if(nSize>nFilesize)
nSize=nFilesize;
try{
In.Read(cbBuffer,nSize);
}
catch(CFileException *e){
char *lpMsgBuf;
if(FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM, NULL,e->m_lOsError,
MAKELANGID(LANG_NEUTRAL,
SUBLANG_DEFAULT),
(LPSTR)&lpMsgBuf,0,NULL)>0){
AfxMessageBox(lpMsgBuf);
LocalFree(lpMsgBuf);
}
e->Delete();
return;
}
try{
Out.Write(cbBuffer,nSize);
}
catch(CFileException *e){
char *lpMsgBuf;
if(FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM,NULL,e->m_lOsError,
MAKELANGID(LANG_NEUTRAL,
SUBLANG_DEFAULT),
(LPSTR)&lpMsgBuf,0,NULL)>0){
AfxMessageBox(lpMsgBuf);
LocalFree(lpMsgBuf);
}
e->Delete();
return;
}
nFilesize=nSize;
}
}
else
AfxMessageBox("不能打开"+Filename);
}
}
}
else
AfxMessageBox("不能创建输出文件");
8.写入文件
CFile mFile(_T(%%1), CFile::modeWrite|CFile::modeCreate);
mFile.Write(%%2,sizeof(%%2));
mFile.Flush();
mFile.Close();
9.写入随机文件
char szTempPath[_MAX_PATH],szTempfile[_MAX_PATH];
GetTempPath(_MAX_PATH, szTempPath);
GetTempFileName(szTempPath,_T ("my_"),0,szTempfile);
CFile m_tempFile(szTempfile,CFile:: modeCreate|CFile:: modeWrite);
char m_char='a';
m_tempFile.Write(&m_char,2);
m_tempFile.Close();
//循环写入多个值
strTempA;
int i;
int nCount=6;
//共有6个文件名需要保存
for (i=0;i{strTemp.Format("%d",i);
strTempA=文件名;
//文件名可以从数组,列表框等处取得.
::WritePrivateProfileString("UseFileName","FileName"+strTemp,strTempA,
c:\\usefile\\usefile.ini);
}
strTemp.Format("%d",nCount);
::WritePrivateProfileString("FileCount","Count",strTemp,"c:\\usefile\\usefile.ini");
//将文件总数写入,以便读出.
//读出
nCount=::GetPrivateProfileInt("FileCount","Count",0,"c:\\usefile\\usefile.ini");
for(i=0;i{strTemp.Format("%d",i);
strTemp="FileName"+strTemp;
::GetPrivateProfileString("CurrentIni",strTemp,"default.fil", strTempA.GetBuffer(MAX_PATH),MAX_PATH,"c:\\usefile\\usefile.ini");
//使用strTempA中的内容.
}
10.读取文件属性
DWORD dwAttrs = GetFileAttributes(%%1);
if(dwAttrs & FILE_ATTRIBUTE_READONLY) {
%%2
}
if(dwAttrs & FILE_ATTRIBUTE_NORMAL){
%%3
}
11.写入属性
SetFileAttributes(%%1,dwAttrs | FILE_ATTRIBUTE_READONLY);
12.枚举一个目录下所有文件夹
CFileFind finder;
CString path;
path.Format("%s\\*.*",%%1);
BOOL bWorking = finder.FindFile(path);
while (bWorking) {
bWorking = finder.FindNextFile();
if(finder.IsDirectory()){
CString %%1=finder.GetFilePath();
%%2
}
}
13.复制文件夹
WIN32_FIND_DATA FileData;
HANDLE hSearch;
DWORD dwAttrs;
char szDirPath[] = %%2;
char szNewPath[MAX_PATH];
char szHome[MAX_PATH];
BOOL fFinished = FALSE;
if (!CreateDirectory(szDirPath, NULL)) {
//不能创建新的目录
return;
}
CString path;
path.Format("%s\\*.*",%%1);
hSearch = FindFirstFile(path, &FileData);
if (hSearch == INVALID_HANDLE_VALUE) {
return;
}
while (!fFinished) {
lstrcpy(szNewPath, szDirPath);
lstrcat(szNewPath, FileData.cFileName);
if (CopyFile(FileData.cFileName, szNewPath, FALSE)) {
dwAttrs = GetFileAttributes(FileData.cFileName);
if (!(dwAttrs & FILE_ATTRIBUTE_READONLY)) {
SetFileAttributes(szNewPath,
dwAttrs | FILE_ATTRIBUTE_READONLY);
}
}
else {
//不能复制文件
return;
}
if (!FindNextFile(hSearch, &FileData)) {
if (GetLastError() == ERROR_NO_MORE_FILES) {
//遍历文件夹完成
fFinished = TRUE;
}
else {
//找不到下一个文件
return;
}
}
}
FindClose(hSearch);
14.复制一个目录下所有的文件夹到另一个文件夹下
WIN32_FIND_DATA FileData;
HANDLE hSearch;
DWORD dwAttrs;
char szDirPath[] = %%2;
char szNewPath[MAX_PATH];
char szHome[MAX_PATH];
BOOL fFinished = FALSE;
if (!CreateDirectory(szDirPath,NULL))
{
//不能创建新的目录
return;
}
CString path;
path.Format("%s\\*.*",%%1);
BOOL bWorking = finder.FindFile(path);
while (bWorking)
{
bWorking = finder.FindNextFile();
if(finder.IsDirectory()){
hSearch = FindFirstFile(finder.GetFilePath()+"\\*.*", &FileData);
if (hSearch == INVALID_HANDLE_VALUE)
{
return;
}
while (!fFinished)
{
lstrcpy(szNewPath, szDirPath);
lstrcat(szNewPath, FileData.cFileName);
if (CopyFile(FileData.cFileName, szNewPath, FALSE))
{
dwAttrs = GetFileAttributes(FileData.cFileName);
if (!(dwAttrs & FILE_ATTRIBUTE_READONLY))
{
SetFileAttributes(szNewPath,
dwAttrs | FILE_ATTRIBUTE_READONLY);
}
}
else
{
//不能复制文件
return;
}
if (!FindNextFile(hSearch, &FileData))
{
31.文件简单加密
//#include <string>
using std::string;
string s(%%1);
char sep='/';
#ifdef _WIN32
sep='\\';
#endif
size_t sz=s.rfind(sep,s.length());
CString outfile;
if(sz!=string::npos)
{
CFile Out,In;
int nFIlesize;
char *lpMsgBuf;
CString strFilename(s.substr(i+1,s.length()-i));
if(!in.Open(%%1,CFile::modeRead)){
//不能打开输入文件
return;
}
outfile.Format("\\enc_",%%2,strfilename);
if(!Out.Open(outfile,CFile::modewrite|CFile::modeCreate)){
//不能打开输出文件
return;
}
}
nFilesize=In.GetLength();
lpBuffer=new char[nFilesize];
if(lpBuffer==NULL){
//不能分配复制缓存
return;
}
CFileStatus rStatus;
In.GetStatus(%%1,rStatus);
try{
In.Read(cbBuffer,nFilesize);
}
catch(CFileException *e){
char *lpMsgBuf;
if(FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM,
NULL,e->m_lOsError,
MAKELANGID(LANG_NEUTRAL,
SUBLANG_DEFAULT),
(LPSTR)&lpMsgBuf,0,NULL)>0){
AfxMessageBox(lpMsgBuf);
LocalFree(lpMsgBuf);
}
e->Delete();
return;
}
for(int i=0;i<nFilesize;i++)
{
int ibt=lpBuffer[i];
ibt+=100;
ibt%=256;
bpBuffer[i]=(char)ibt;
}
try{
Out.Write(cbBuffer,nFilesize);
}
catch(CFileException *e){
char *lpMsgBuf;
if(FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM,
NULL,e->m_lOsError,
MAKELANGID(LANG_NEUTRAL,
SUBLANG_DEFAULT),
(LPSTR)&lpMsgBuf,0,NULL)>0){
AfxMessageBox(lpMsgBuf);
LocalFree(lpMsgBuf);
}
e->Delete();
return;
}
Out.Close();
//In.Close();
CFile::SetStatus(outfile,rstatus);
delete[] lpBuffer;
}
32.文件简单解密
//#include <string>
using std::string;
string s(%%1);
char sep='/';
#ifdef _WIN32
sep='\\';
#endif
size_t sz=s.rfind(sep,s.length());
CString infile;
if(sz!=string::npos)
{
CFile Out,In;
int nFIlesize;
char *lpMsgBuf;
CString strFilename(s.substr(i+1,s.length()-i));
infile.Format("%s\\enc_%s",%%2,strfilename)
if(!in.Open(infile,CFile::moderead)){
//不能打开输入文件
return;
}
if(!Out.Open(%%1,CFile::modeWrite|CFile::modeCreate)){
//不能打开输出文件
return;
}
nFilesize=In.GetLength();
lpBuffer=new char[nFilesize];
if(lpBuffer==NULL){
//不能分配复制缓存
return;
}
CFileStatus rStatus;
In.GetStatus(infile,rstatus);
try{
In.Read(cbBuffer,nFilesize);
}
catch(CFileException *e){
char *lpMsgBuf;
if(FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
NULL,e->m_lOsError,
MAKELANGID(LANG_NEUTRAL,
SUBLANG_DEFAULT),
(LPSTR)&lpMsgBuf,0,NULL)>0){
AfxMessageBox(lpMsgBuf);
LocalFree(lpMsgBuf);
}
e->Delete();
return;
}
for(int i=0;i<nFilesize;i++)
{
int ibt=lpBuffer[i];
ibt-=100;ibt+=256;
ibt%=256;
bpBuffer[i]=(char)ibt;
}
try{
Out.Write(cbBuffer,nFilesize);
}
catch(CFileException *e){
char *lpMsgBuf;
if(FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
NULL,e->m_lOsError,
MAKELANGID(LANG_NEUTRAL,
SUBLANG_DEFAULT),
(LPSTR)&lpMsgBuf,0,NULL)>0){
AfxMessageBox(lpMsgBuf);
LocalFree(lpMsgBuf);
}
e->Delete();
return;
}
Out.Close();
//In.Close();
CFile::SetStatus(%%1,rStatus);
delete[] lpBuffer;
}
33.读取ini文件属性
CStdioFile inifile(%%1,CFile::modeRead);
CString path = inifile.GetFilePath();
inifile.Close();
char key[1024];
DWORD bytes = GetPrivateProfileString(%%2,%%3,%%4,key,1024,path);
if(bytes < 1024)
key[bytes] = '\0';
CString %%5(key);
34.合并一个目录下所有的文件
CString Directory;
Directory.Format("%s\\*.*",%%1);
CFileFind FFile;
CFile Out;
if(Out.Open(%%2,CFile::modeWrite|CFile::modeCreate)){
BOOL bFound=FFile.FindFile(Directory);
while(bFound)
{
bFound=FFile.FileNextFile();
if(!FFile.IsDirectory() && !FFile.IsDots())
{
CString Filename=FFile.GetFileName();
CFile In;
if(In.Open(Filename,CFile::modeRead)){
char cbBuffer[4096];
int nFIlesize=In.GetLength();
while(nFIlesize>0){
{
int nSize=sizeof(cbBuffer);
if(nSize>nFilesize)
nSize=nFilesize;
try {
In.Read(cbBuffer,nSize);
}
catch(CFileException *e){
char *lpMsgBuf;
if(FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM,
NULL,e->m_lOsError,
MAKELANGID(LANG_NEUTRAL,
SUBLANG_DEFAULT),
(LPSTR)&lpMsgBuf,0,NULL)>0){
AfxMessageBox(lpMsgBuf);
LocalFree(lpMsgBuf);
}
e->Delete();
return;
}
try {
Out.Write(cbBuffer,nSize);
}
catch(CFileException *e){
char *lpMsgBuf;
19楼
if(FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
NULL,e->m_lOsError,
MAKELANGID(LANG_NEUTRAL,
SUBLANG_DEFAULT),
(LPSTR)&lpMsgBuf,0,NULL)>0){
AfxMessageBox(lpMsgBuf);
LocalFree(lpMsgBuf);
}
e->Delete();
return;
}
nFilesize=nSize;
}
}
else
AfxMessageBox("不能打开"+Filename);
}
}
}
}
else
AfxMessageBox("不能创建输出文件");
35.写入ini文件属性
/*
CStdioFile inifile(%%1,CFile::modeRead);
CString path = inifile.GetFilePath();
inifile.Close();
int bytes = GetPrivateProfileInt(%%2,%%3,%%4,path);
*/
WritePrivateProfileString(%%2,%%3,%%4,path);
36.获得当前路径
TCHAR szDir[MAX_PATH];
GetCurrentDirectory(MAX_PATH,szDir);
CString %%1;
%%1.Format("%s",szDir);
37.读取XML数据库
/*
#include <string>
using namespace std;
*/
char sRead[5192];
const char* name="Name";
const char* name2="author";
const char* root="ProductData";
const char* subNodeTag="Product";
const char* ID="pid";
//%%2="ProductData" //%%4="pid" //%%6="author"
//%%3="Product" //%%5="Name"
char sRead[5192];
CFile mFile(_T(%%1),CFile::modeRead);
mFile.Read(sRead,5192);
if(sRead!=NULL)
{
string tmp;
while(sRead!=NULL)
{
tmp.append(sRead);
mFile.Read(sRead,5192);
}
string target("001"),globalTag;globalTag.append("<");globalTag.append
oot);globalTag.append(">");
string propTag1;propTag1.append("<");propTag1.append(name);propTag1.append(">");
string endTag1;endTag1.append("</");endTag1.append(name);endTag1.append(">");
string propTag2;propTag2.append("<");propTag2.append(name2);propTag2.append(">");
string endTag2;endTag2.append("</");endTag2.append(name2);endTag2.append(">");
int offset=tmp.find_first_of(globalTag);
while(offset)
{
offset=tmp.find_first_of(globalTag);
string description;
tmp.copy(description.begin(),tmp.find_first_of("\"",offset+1)-offset);
if(target.compare(description)==0)
{
string prop,prop2;
offset=tmp.find_first_of(propTag1,offset)+strlen(name)+2;
tmp.copy(prop.begin(),tmp.find_first_of(endTag1,offset)- offset,offset);
offset=tmp.find_first_of(propTag2,offset)+strlen(name2)+2;
tmp.copy(prop2.begin(),tmp.find_first_of(endTag2,offset)-offset,offset);
//CString %%8(prop),%%9(prop2);
//%%10
return 0;
}
}
}
else
return -1;
38.写入XML数据库
/*
#include <string>
using namespace std;
*/
char sRead[5192];
int no;
const char* name="Name";
const char* name2="author";
const char* root="ProductData";
const char* subNodeTag="Product";
const char* ID="pid";
//%%2="ProductData" //%%4="pid" //%%6="port"
//%%3="Product" //%%5="Name" //%%7="author"
CString temp;
char sRead[5192];
string description;
CFile mFile(_T(%%1),CFile::modeRead);
mFile.Read(sRead,5192);
if(sRead!=NULL)
{
string tmp;
while(sRead!=NULL)
{
tmp.append(sRead);
memset(sRead,0,5192);
mFile.Read(sRead,5192);
}
temp.Format("<%s %s",subNodeTag,ID);
int offset=tmp.find_last_of(temp)+strlen(subNodeTag) +strlen(ID)+4;
temp.Format("\"><%s",name);
tmp.copy(description.begin(),tmp.find_last_of(temp)- offset,offset);
no=atoi(description.c_str())+1;
mFile.Close();
temp.Format("</%s>",root);
CString temp2;
temp2.Format("<%s %s=\"%d\"><%s>%s</%s><%s>%s</%
s",subNodeTag,ID,no,name,"bbbbbbbbbbbbbbbb",name,name2,"cccccccccccccc",name2);
tmp.insert(tmp.find_last_of(temp),temp2);
CFile file(_T("Produces.xml"),CFile::modeWrite);
file.Write(tmp.c_str(),tmp.size());
file.Flush();
file.Close();
}
else
{
CFile file(_T(%%1),CFile::modeWrite|CFile::modeCreate);
temp.Format("<?xml version=\"1.0\" encoding=\"gb2312\"?><%s><%s %s=\"0\"><%s>%s</%s><%s>%
s</%s></%s></%s>",root,subNodeTag,ID,name,"bbbbbbbbbbbbbbbb",name,name2,"cccccccccccccc",name2,subNodeTag,root);
file.Write(temp.GetBuffer(0),temp.GetLength());
file.Flush();
file.Close();
}
39.ZIP压缩文件
//www.zlib.net
/*
#ifdef _DEBUG
#pragma comment(lib,"zlibd.lib")
#else
#pragma comment(lib,"zlib.lib")
#endif
#include "zlib.h"
#include "zconf.h"
*/
HANDLE hFile, hFileToWrite;
CString strFilePath;
m_ctrEdit.GetWindowText(strFilePath);
//打开要进行压缩的文件
hFile = CreateFile(strFilePath, // file name
GENERIC_READ, // open for reading
FILE_SHARE_READ, // share for reading
NULL, // no security
OPEN_EXISTING, // existing file only
FILE_ATTRIBUTE_NORMAL, // normal file
NULL); // no attr. template
if (hFile == INVALID_HANDLE_VALUE)
{
AfxMessageBox("Could not open file to read"); // process error
return;
}
HANDLE hMapFile, hMapFileToWrite;
//创建一个文件映射
hMapFile = CreateFileMapping(hFile, // Current file handle.
NULL, // Default security.
PAGE_READONLY, // Read/write permission.
0, // Max. object size.
0, // Size of hFile.
"ZipTestMappingObjectForRead"); // Name of mapping object.
if (hMapFile == NULL)
{
AfxMessageBox("Could not create file mapping object");
return;
}
LPVOID lpMapAddress, lpMapAddressToWrite;
//创建一个文件映射的视图用来作为source
lpMapAddress = MapViewOfFile(hMapFile, // Handle to mapping object.
FILE_MAP_READ, // Read/write permission
24楼
0, // Max. object size.
0, // Size of hFile.
0); // Map entire file.
if (lpMapAddress == NULL)
{
AfxMessageBox("Could not map view of file");
return;
}
DWORD dwFileLength,dwFileLengthToWrite;
dwFileLength = GetFileSize(hFile, NULL);
m_dwSourceFileLength = dwFileLength;
//因为压缩函数的输出缓冲必须比输入大0.1% + 12 然后一个DWORD用来保存压缩前的大小，
// 解压缩的时候用，当然还可以保存更多的信息，这里用不到
dwFileLengthToWrite = (double)dwFileLength*1.001 + 12 +sizeof(DWORD);
//以下是创建一个文件，用来保存压缩后的文件
hFileToWrite = CreateFile("demoFile.rar", // demoFile.rar
GENERIC_WRITE|GENERIC_READ, // open for writing
0, // do not share
NULL, // no security
CREATE_ALWAYS, // overwrite existing
FILE_ATTRIBUTE_NORMAL , // normal file
NULL); // no attr. template
if (hFileToWrite == INVALID_HANDLE_VALUE)
{
AfxMessageBox("Could not open file to write"); // process error
return;
}
hMapFileToWrite = CreateFileMapping(hFileToWrite, // Current file handle.
NULL, // Default security.
PAGE_READWRITE, // Read/write permission.
0, // Max. object size.
dwFileLengthToWrite, // Size of hFile.
"ZipTestMappingObjectForWrite"); // Name of mapping object.
if (hMapFileToWrite == NULL)
{
AfxMessageBox("Could not create file mapping object for write");
return;
}
lpMapAddressToWrite = MapViewOfFile(hMapFileToWrite, //Handle to mapping object.FILE_MAP_WRITE, // Read/write permission
0, // Max. object size.
0, // Size of hFile.
0); // Map entire file.
if (lpMapAddressToWrite == NULL)
{
AfxMessageBox("Could not map view of file");
return;
}
//这里是将压缩前的大小保存在文件的第一个DWORD里面
LPVOID pBuf = lpMapAddressToWrite;
(*(DWORD*)pBuf) = dwFileLength;
pBuf = (DWORD*)pBuf + 1;
//这里就是最重要的，zlib里面提供的一个方法，将源缓存的数据压缩至目的缓存
//原形如下：
//int compress (Bytef *dest, uLongf *destLen, const Bytef*source, uLong sourceLen);
//参数destLen返回实际压缩后的文件大小。
compress((Bytef*)pBuf,&dwFileLengthToWrite, (Bytef*)lpMapAddress, dwFileLength);
UnmapViewOfFile(lpMapAddress);
CloseHandle(hMapFile);
CloseHandle(hFile);
UnmapViewOfFile(lpMapAddressToWrite);
CloseHandle(hMapFileToWrite);
//这里将文件大小重新设置一下
SetFilePointer(hFileToWrite,dwFileLengthToWrite + sizeof(DWORD) ,NULL,FILE_BEGIN);
SetEndOfFile(hFileToWrite);
CloseHandle(hFileToWrite);
40.ZIP解压缩
//www.zlib.net
/*
#ifdef _DEBUG
#pragma comment(lib,"zlibd.lib")
#else
#pragma comment(lib,"zlib.lib")
#endif
#include "zlib.h"
#include "zconf.h"
*/
HANDLE hFile, hFileToWrite;
CString strFilePath=%%1;
//打开要进行解压缩的文件
hFile = CreateFile(strFilePath, // file name
GENERIC_READ, // open for reading
FILE_SHARE_READ, // share for reading
NULL, // no security
OPEN_EXISTING, // existing file only
FILE_ATTRIBUTE_NORMAL, // normal file
NULL
); // no attr. template
if (hFile == INVALID_HANDLE_VALUE)
{
AfxMessageBox("Could not open file to read"); // process error
return;
}
HANDLE hMapFile, hMapFileToWrite;
//创建一个文件映射
hMapFile = CreateFileMapping(hFile, // Current file handle.
NULL, // Default security.
PAGE_READONLY, // Read/write permission.
0, // Max. object size.
0, // Size of hFile.
"ZipTestMappingObjectForRead"); // Name of mapping object.
if (hMapFile == NULL)
{
AfxMessageBox("Could not create file mapping object");
return;
}
LPVOID lpMapAddress, lpMapAddressToWrite;
//创建一个文件映射的视图用来作为source
lpMapAddress = MapViewOfFile(hMapFile, // Handle to mapping
object.FILE_MAP_READ, // Read/write permission
0, // Max. object size.
0, // Size of hFile.
0); // Map entire file.
if (lpMapAddress == NULL)
{
AfxMessageBox("Could not map view of file");
return;
}
DWORD dwFileLength,dwFileLengthToWrite;
dwFileLength = GetFileSize(hFile, NULL) - sizeof(DWORD);
//因为压缩函数的输出缓冲必须比输入大0.1% + 12 然后一个DWORD用来保存压缩前的大小，
// 解压缩的时候用，当然还可以保存更多的信息，这里用不到
// dwFileLengthToWrite = (double)dwFileLength*1.001 + 12 +sizeof(DWORD);
dwFileLengthToWrite = (*(DWORD*)lpMapAddress);
LPVOID pSourceBuf = lpMapAddress;
pSourceBuf = (DWORD*)pSourceBuf + 1;
//以下是创建一个文件，用来保存压缩后的文件
hFileToWrite = CreateFile(%%2, // create demo.gz
GENERIC_WRITE|GENERIC_READ, // open for writing
0, // do not share
NULL, // no security
CREATE_ALWAYS, // overwrite existing
FILE_ATTRIBUTE_NORMAL , // normal file
NULL
); // no attr. template
if (hFileToWrite == INVALID_HANDLE_VALUE)
{
AfxMessageBox("Could not open file to write"); //process error
return;
}
hMapFileToWrite = CreateFileMapping(hFileToWrite, // Currentfile handle.
NULL, // Default security.
PAGE_READWRITE, // Read/write permission.
0, // Max. object size.
dwFileLengthToWrite, // Size of hFile.
"ZipTestMappingObjectForWrite"); // Name of mapping object.
if (hMapFileToWrite == NULL)
{
AfxMessageBox("Could not create file mapping object for write");
return;
}
lpMapAddressToWrite = MapViewOfFile(hMapFileToWrite, //Handle to mapping object.
FILE_MAP_WRITE, // Read/write permission
0, // Max. object size.
0, // Size of hFile.
0
); // Map entire file.
if (lpMapAddressToWrite == NULL)
{
AfxMessageBox("Could not map view of file");
return;
}
//这里是将压缩前的大小保存在文件的第一个DWORD里面
LPVOID pBuf = lpMapAddressToWrite;
//这里就是最重要的，zlib里面提供的一个方法，将源缓存的数据压缩至目的缓存
//原形如下：
//int compress (Bytef *dest, uLongf *destLen, const Bytef *source, uLong sourceLen);
//参数destLen返回实际压缩后的文件大小。
uncompress((Bytef*)pBuf,&dwFileLengthToWrite, (Bytef*)pSourceBuf, dwFileLength);
UnmapViewOfFile(lpMapAddress);
CloseHandle(hMapFile);
CloseHandle(hFile);
UnmapViewOfFile(lpMapAddressToWrite);
CloseHandle(hMapFileToWrite);
//这里将文件大小重新设置一下
SetFilePointer(hFileToWrite,dwFileLengthToWrite,NULL,FILE_BEGIN);
SetEndOfFile(hFileToWrite);
CloseHandle(hFileToWrite);
- mfc 文件 文件夹操作大全
- MFC 文件，文件夹操作
- MFC 文件，文件夹操作
- MFC 文件，文件夹操作
- MFC文件、文件夹操作
- MFC 文件，文件夹操作
- MFC 文件，文件夹操作
- MFC 文件，文件夹操作
- MFC文件操作大全
- MFC文件操作大全
- MFC文件操作大全
- MFC文件操作大全
- MFC文件操作大全
- MFC文件操作大全
- MFC文件操作大全
- MFC文件操作大全
- MFC文件操作大全
- MFC文件操作大全
- 51单片机PSW之CY与OV的联系与区别
- 关于 Tenda w311r 管理员权限 的安全问题
- 第10章 简化 AJAX 和动态加载 (一)
- 第10章 简化 AJAX 和动态加载 (二)
- 双向循环链表
- mfc 文件 文件夹操作大全
- CentOS 5 安装 JDK 1.6（整理）
- 第11章 利用窗口部件构建用户界面 (第一部分)
- C语言和设计模式（桥接模式）
- 工厂模式
- 第12章 利用窗口部件构建用户界面 (第二部分)
- html判断IE版本
- Reader-Writer Pattern
- C语言和设计模式（观察者模式）
