Beispiel #1
0
        /// <summary>
        /// 压缩一个数据集到文件
        /// </summary>
        /// <param name="dataSet"></param>
        /// <param name="destFileName"></param>
        /// <param name="cry"></param>
        /// <param name="cryKey"></param>
        /// <returns></returns>
        public I3MsgInfo CompressADataSet(DataSet dataSet, string destFileName, bool cry, string cryKey)
        {
            #region 初始化临时文件变量
            string tmpDir         = I3DirectoryUtil.GetAppTmpTmpDir();
            string tmpDataSetFile = Path.Combine(tmpDir, "DataSet.tmp");
            string tmpRarFile     = Path.Combine(tmpDir, I3DateTimeUtil.ConvertDateTimeToLongString(DateTime.Now) + ".tmp");
            if ((!I3DirectoryUtil.CreateDirctory(tmpDir).State) || (!I3FileUtil.CheckFileNotExists(tmpDataSetFile)) || (!I3FileUtil.CheckFileNotExists(tmpRarFile)))
            {
                return(new I3MsgInfo(false, ""));
            }
            #endregion

            try
            {
                #region 数据集保存到临时文件
                try
                {
                    //保存时要写入架构信息,否则字段类型有可能会更改,如Int32更改为String
                    dataSet.WriteXml(tmpDataSetFile, XmlWriteMode.WriteSchema);
                }
                catch (Exception ex)
                {
                    return(new I3MsgInfo(false, "数据集保存到临时文件失败!文件名:" + tmpDataSetFile + "错误信息:" + ex.Message));
                }
                if (!File.Exists(tmpDataSetFile))
                {
                    return(new I3MsgInfo(false, "数据集保存到临时文件失败!文件名:" + tmpDataSetFile));
                }
                #endregion

                #region 数据集临时文件压缩到临时压缩包
                I3MsgInfo msg = this.CompressASingleFile(tmpDataSetFile, tmpRarFile);
                if (!msg.State)
                {
                    return(msg);
                }
                if (!File.Exists(tmpRarFile))
                {
                    return(new I3MsgInfo(false, "数据集临时文件压缩失败!文件名:" + tmpDataSetFile));
                }
                #endregion

                #region 临时压缩包加密到目标文件
                if (cry)
                {
                    return(I3RijnDaelCry.CryFile(tmpRarFile, destFileName, cryKey));
                }
                else
                {
                    return(I3FileUtil.MoveFile(tmpRarFile, destFileName, true));
                }
                #endregion
            }
            finally
            {
                #region  除临时文件
                I3DirectoryUtil.DeleteDirctory(tmpDir);
                #endregion
            }
        }
Beispiel #2
0
        /// <summary>
        /// 解压单个文件 到 指定文件
        /// 注意:单个文件的文件名,要指定在rar文件中的相对路径
        /// </summary>
        /// <param name="sourceRarFileName"></param>
        /// <param name="sourceFileName"></param>
        /// <param name="destFileName"></param>
        /// <returns></returns>
        public I3MsgInfo UnCompressASingleFile(string sourceRarFileName, string sourceFileName, string destFileName)
        {
            #region 先删除目的文件
            if (!I3FileUtil.CheckFileNotExists(destFileName))
            {
                return(new I3MsgInfo(false, ""));
            }
            #endregion

            #region 获取临时目录与临时文件名
            string tmpDir      = I3DirectoryUtil.GetAppTmpTmpDir();
            string tmpFileName = Path.Combine(tmpDir, Path.GetFileName(sourceFileName));
            #endregion

            I3MsgInfo msg = I3DirectoryUtil.CreateDirectoryByFileName(tmpFileName);
            #region 创建临时目录
            if (!msg.State)
            {
                return(msg);
            }
            #endregion

            try
            {
                #region 生成命令行参数
                string cmdLine;
                cmdLine = " E -Y ";
                if (!string.IsNullOrEmpty(passWord))
                {
                    cmdLine = cmdLine + " -p" + I3StringUtil.AppendDoubleQuotes(passWord) + " ";
                }
                cmdLine = cmdLine + I3StringUtil.AppendDoubleQuotes(sourceRarFileName) + " "
                          + I3StringUtil.AppendDoubleQuotes(sourceFileName) + " "
                          + I3StringUtil.AppendDoubleQuotes(tmpDir);
                #endregion

                //执行
                msg = RunCmdLine(cmdLine);
                if (!msg.State)
                {
                    return(msg);
                }

                //检查临时文件
                if (!File.Exists(tmpFileName))
                {
                    return(new I3MsgInfo(false, "未知错误,临时文件未生成!文件名:" + tmpFileName));
                }

                //移动
                return(I3FileUtil.MoveFile(tmpFileName, destFileName, true));
            }
            finally
            {
                I3DirectoryUtil.DeleteDirctory(tmpDir);
            }
        }
Beispiel #3
0
        /// <summary>
        /// 从一个被压缩的数据集文件中加载数据集
        /// </summary>
        /// <param name="sourceFileName"></param>
        /// <param name="dataSet"></param>
        /// <param name="unCry"></param>
        /// <param name="unCryKey"></param>
        /// <returns></returns>
        public I3MsgInfo UnCompressADataSet(string sourceFileName, DataSet dataSet, bool unCry, string unCryKey)
        {
            #region 初始化临时文件变量
            string tmpDir         = I3DirectoryUtil.GetAppTmpTmpDir();
            string tmpDataSetFile = Path.Combine(tmpDir, "DataSet.tmp");
            string tmpRarFile     = Path.Combine(tmpDir, I3DateTimeUtil.ConvertDateTimeToLongString(DateTime.Now) + ".tmp");
            if ((!I3DirectoryUtil.CreateDirctory(tmpDir).State) || (!I3FileUtil.CheckFileNotExists(tmpDataSetFile)) || (!I3FileUtil.CheckFileNotExists(tmpRarFile)))
            {
                return(new I3MsgInfo(false, ""));
            }
            #endregion

            I3MsgInfo msg;
            try
            {
                #region 解密到临时压缩文件
                if (unCry)
                {
                    msg = I3RijnDaelCry.UnCryFile(sourceFileName, tmpRarFile, unCryKey);
                    if (!msg.State)
                    {
                        return(msg);
                    }
                }
                else
                {
                    msg = I3FileUtil.MoveFile(sourceFileName, tmpRarFile, false);
                    if (!msg.State)
                    {
                        return(msg);
                    }
                }
                if (!File.Exists(tmpRarFile))
                {
                    return(new I3MsgInfo(false, "文件解密到临时压缩文件失败!文件名:" + tmpRarFile));
                }
                #endregion

                #region 解压缩到临时数据集文件
                msg = this.UnCompressASingleFile(tmpRarFile, "DataSet.tmp", tmpDataSetFile);
                if (!msg.State)
                {
                    return(msg);
                }
                if (!File.Exists(tmpDataSetFile))
                {
                    return(new I3MsgInfo(false, "临时压缩文件解压到临时数据集文件失败!文件名:" + tmpDataSetFile));
                }
                #endregion

                #region 从临时数据集文件加载
                try
                {
                    dataSet.ReadXml(tmpDataSetFile);
                    return(I3MsgInfo.Default);
                }
                catch (Exception ex)
                {
                    return(new I3MsgInfo(false, "从临时数据集文件加载数据集失败!错误信息:" + ex.Message, ex));
                }
                #endregion
            }
            finally
            {
                #region  除临时文件
                I3DirectoryUtil.DeleteDirctory(tmpDir);
                #endregion
            }
        }