ofstream ofsTianwangFile(ofsName.c_str(),ios::app|ios::binary);
                if(!ofsTianwangFile){
                        cerr << "cannot open " << ofsName << "for output" << endl;
                        return (-1);
                }


                char strDownloadTime[128];
                time_t tDate;

                memset(strDownloadTime,0,128);
                time(&tDate);
                strftime(strDownloadTime, 128,"%a, %d %b %Y %H:%M:%S GMT", gmtime(&tDate));


                ofsTianwangFile << "version: 1.0\n";
                //if( iPage.m_sLocation.empty() == true ){
                if( iPage.m_sLocation.length() == 0 ){
                         ofsTianwangFile << "url: " << iUrl.m_sUrl;
                }else{
                         ofsTianwangFile << "url: " << iPage.m_sLocation;
                         ofsTianwangFile << "\norigin: " << iUrl.m_sUrl;
                }

                ofsTianwangFile << "\ndate: " << strDownloadTime;
                if( mapCacheHostLookup.find(iUrl.m_sHost) == mapCacheHostLookup.end() ){
                        ofsTianwangFile <<"\nip: " << iUrl.m_sHost;

                }else{
                        ofsTianwangFile <<"\nip: " << ( *(mapCacheHostLookup.find(iUrl.m_sHost)) ).second;
                }

                ofsTianwangFile << "\nlength: " << iPage.m_nLenContent + iPage.m_nLenHeader + 1 << "\n\n"
                        << iPage.m_sHeader << "\n";

                ofsTianwangFile.write( iPage.m_sContent.c_str(), iPage.m_nLenContent);
                ofsTianwangFile << "\n";

                ofsTianwangFile.close();