29Wx状态初始化

2026-06-11 15:17:50 +08:00
1 parent 9fd5579fcd
commit 40c702883c
@@ -0,0 +1,141 @@
+using System;
+using System.IO;
+using System.IO.Compression;
+//using ICSharpCode.SharpZipLib.Zip;
+
+namespace AllBase
+{
+    public static class ZipHelper
+    {
+        /// <summary>
+        /// GZip压缩
+        /// </summary>
+        /// <param name="rawData"></param>
+        /// <returns></returns>
+        public static byte[] Compress(byte[] rawData)
+        {
+            if (rawData == null || rawData.Length < 1000)
+                return rawData;
+            MemoryStream ms = new MemoryStream();
+            GZipStream compressedzipStream = new GZipStream(ms, CompressionMode.Compress, true);
+            compressedzipStream.Write(rawData, 0, rawData.Length);
+            compressedzipStream.Close();
+            return ms.ToArray();
+        }
+
+        /// <summary>
+        /// ZIP解压
+        /// </summary>
+        /// <param name="zippedData"></param>
+        /// <returns></returns>
+        public static byte[] Decompress(byte[] zippedData)
+        {
+            if (zippedData == null || zippedData.Length == 0)
+                return null;
+            if (zippedData.Length < 100)
+                return zippedData;
+            if (zippedData[2] != 0x8 || zippedData[3] != 0x0 || zippedData[4] != 0x0 
+                || zippedData[5] != 0x0 || zippedData[6] != 0x0 || zippedData[7] != 0x0
+                || zippedData[0] != 31 || zippedData[1] != 139)//软加速判断头尾是否正确
+                return zippedData;
+            try
+            {
+                MemoryStream ms = new MemoryStream(zippedData);
+                GZipStream compressedzipStream = new GZipStream(ms, CompressionMode.Decompress);
+                MemoryStream outBuffer = new MemoryStream();
+                byte[] block = new byte[1024];
+                while (true)
+                {
+                    int bytesRead = compressedzipStream.Read(block, 0, block.Length);
+                    if (bytesRead < 1)
+                        break;
+                    outBuffer.Write(block, 0, bytesRead);
+                }
+                compressedzipStream.Close();
+                return outBuffer.ToArray();
+            }
+            catch
+            {
+            }
+            return zippedData;
+        }
+        /// <summary>
+        /// 解压文件到指定文件夹
+        /// </summary>
+        /// <param name="sourceFile">压缩文件</param>
+        /// <param name="destinationDirectory">目标文件夹，如果为空则解压到当前文件夹下</param>
+        /// <param name="password">密码</param>
+        /// <returns></returns>
+        //public static bool DecomparessFile(string sourceFile, string destinationDirectory = null, string password = null)
+        //{
+        //    bool result = false;
+        //    int BufferSize = 1024*128;
+        //    if (!File.Exists(sourceFile))
+        //    {
+        //        return false;
+        //    }
+
+        //    if (string.IsNullOrWhiteSpace(destinationDirectory))
+        //    {
+        //        destinationDirectory = Path.GetDirectoryName(sourceFile);
+        //    }
+
+        //    try
+        //    {
+        //        if (!Directory.Exists(destinationDirectory))
+        //        {
+        //            Directory.CreateDirectory(destinationDirectory);
+        //        }
+
+        //        using (ZipInputStream zipStream = new ZipInputStream(File.Open(sourceFile, FileMode.Open,
+        //            FileAccess.Read, FileShare.Read)))
+        //        {
+        //            zipStream.Password = password;
+        //            ZipEntry zipEntry = zipStream.GetNextEntry();
+
+        //            while (zipEntry != null)
+        //            {
+        //                if (zipEntry.IsDirectory)//如果是文件夹则创建
+        //                {
+        //                    Directory.CreateDirectory(Path.Combine(destinationDirectory,
+        //                        Path.GetDirectoryName(zipEntry.Name)));
+        //                }
+        //                else
+        //                {
+        //                    string fileName = Path.GetFileName(zipEntry.Name);
+        //                    if (!string.IsNullOrEmpty(fileName) && fileName.Trim().Length > 0)
+        //                    {
+        //                        FileInfo fileItem = new FileInfo(Path.Combine(destinationDirectory, zipEntry.Name));
+        //                        using (FileStream writeStream = fileItem.Create())
+        //                        {
+        //                            byte[] buffer = new byte[BufferSize];
+        //                            int readLength = 0;
+
+        //                            do
+        //                            {
+        //                                readLength = zipStream.Read(buffer, 0, BufferSize);
+        //                                writeStream.Write(buffer, 0, readLength);
+        //                            } while (readLength == BufferSize);
+
+        //                            writeStream.Flush();
+        //                            writeStream.Close();
+        //                        }
+        //                        fileItem.LastWriteTime = zipEntry.DateTime;
+        //                    }
+        //                }
+        //                zipEntry = zipStream.GetNextEntry();//获取下一个文件
+        //            }
+
+        //            zipStream.Close();
+        //        }
+        //        result = true;
+        //    }
+        //    catch (System.Exception ex)
+        //    {
+        //        throw new Exception("文件解压发生错误", ex);
+        //    }
+
+        //    return result;
+        //}
+    }
+}