minizip压缩文件夹（转）

#include <atlconv.h>  //for W2CA
#include "zlib/contrib/minizip/zip.h"

//最终接口：从某个目录创建zip文件
void CreateZipFromDir(const CString& dirName, const CString& zipFileName);

//将文件添加到zip文件中，注意如果源文件srcFile为空则添加空目录
//fileNameInZip: 在zip文件中的文件名，包含相对路径

void AddFileToZip(zipFile zf, const char* fileNameInZip, const char* srcFile)
{
FILE* srcfp = NULL;

//初始化写入zip的文件信息
zip_fileinfo zi;
zi.tmz_date.tm_sec = zi.tmz_date.tm_min = zi.tmz_date.tm_hour =
zi.tmz_date.tm_mday = zi.tmz_date.tm_mon = zi.tmz_date.tm_year = 0;
zi.dosDate = 0;
zi.internal_fa = 0;
zi.external_fa = 0;

//如果srcFile为空，加入空目录
char new_file_name[MAX_PATH];
memset(new_file_name, 0, sizeof(new_file_name));
strcat(new_file_name, fileNameInZip);
if (srcFile == NULL)
{
strcat(new_file_name, "/");
}

//在zip文件中创建新文件
zipOpenNewFileInZip(zf, new_file_name, &zi, NULL, 0, NULL, 0, NULL, Z_DEFLATED, Z_DEFAULT_COMPRESSION);

if (srcFile != NULL)
{
//打开源文件
srcfp = fopen(srcFile, "rb");
if (srcfp == NULL)
{
MessageBox(_T("无法添加文件") + CString(srcFile) + _T("!"));
zipCloseFileInZip(zf); //关闭zip文件
return;
}

//读入源文件并写入zip文件
char buf[100*1024]; //buffer
int numBytes = 0;
while( !feof(srcfp) )
{
numBytes = fread(buf, 1, sizeof(buf), srcfp);
zipWriteInFileInZip(zf, buf, numBytes);
if( ferror(srcfp) )
break;
}

//关闭源文件
fclose(srcfp);
}

//关闭zip文件
zipCloseFileInZip(zf);
}

//递归添加子目录到zip文件
void CollectFilesInDirToZip(zipFile zf, const CString& strPath, const CString& parentDir)
{
USES_CONVERSION; //for W2CA

CString strRelativePath;
CFileFind finder; 
BOOL bWorking = finder.FindFile(strPath + _T("//*.*"));
while(bWorking) 
{ 
bWorking = finder.FindNextFile(); 
if(finder.IsDots())
continue; 

if (parentDir == _T(""))
strRelativePath = finder.GetFileName();
else
strRelativePath = parentDir + _T("//") + finder.GetFileName(); //生成在zip文件中的相对路径

if(finder.IsDirectory())
{
AddFileToZip(zf, W2CA(strRelativePath), NULL); //在zip文件中生成目录结构
CollectFilesInDirToZip(zf, finder.GetFilePath(), strRelativePath); //递归收集子目录文件
continue;
}

AddFileToZip(zf, W2CA(strRelativePath), W2CA(finder.GetFilePath())); //将文件添加到zip文件中
}
}

//最终接口：从某个目录创建zip文件
void CreateZipFromDir(const CString& dirName, const CString& zipFileName)
{
USES_CONVERSION; //使用W2CA转换unicode字符集
zipFile newZipFile = zipOpen(W2CA(zipFileName), APPEND_STATUS_CREATE); //创建zip文件
if (newZipFile == NULL)
{
MessageBox(_T("无法创建zip文件!"));
return;
}

CollectFilesInDirToZip(newZipFile, dirName, _T(""));
zipClose(newZipFile, NULL); //关闭zip文件
}