项目的配置文件为了和服务器保持一致，每次打包时都从网上下载配置文件，由于下载的是zip压缩包，还需要解压，代码如下：
using ICSharpCode.SharpZipLib.Zip;
using System;
using System.IO;
using System.Net;
public class CsvFilesDownloader
{
const string RootUrl = "http://xxx-"; // csv 文件下载地址
const string CSVDirAssetPath = "Assets/CSVConvertScripts/CSVFiles"; // csv 文件保存目录
#region Version
public enum Version
{
Trunk, CBT3, CBT2, CBT1, TT, Daye, M4, M3, M2,
}
#endregion
public static void Start(Version version)
{
string url = RootUrl + version;
var request = (HttpWebRequest)WebRequest.Create(url);
request.Method = WebRequestMethods.Http.Post;
var response = request.GetResponse();
var stream = response.GetResponseStream();
string saveDirPath = AssetBundleItem.GetFullPath(CSVDirAssetPath);
Decompress(stream, saveDirPath);
}
// 需使用开源类库：ICSharpCode.SharpZipLib，可以网上下载
static void Decompress(Stream src, string targetDirPath)
{
if (src == null)
throw new ArgumentNullException("src");
if (string.IsNullOrEmpty(targetDirPath))
throw new ArgumentException("targetDirPath");
if (!Directory.Exists(targetDirPath))
Directory.CreateDirectory(targetDirPath);
using (ZipInputStream decompressor = new ZipInputStream(src))
{
ZipEntry entry;
while ((entry = decompressor.GetNextEntry()) != null)
{
if (entry.IsDirectory)
continue;
if (Path.GetExtension(entry.Name).ToLower() != ".csv")
continue;
string fileName = Path.GetFileName(entry.Name);
string path = Path.Combine(targetDirPath, fileName);
byte[] data = new byte[2048];
using (FileStream streamWriter = File.Create(path))
{
int bytesRead;
while ((bytesRead = decompressor.Read(data, 0, data.Length)) > 0)
streamWriter.Write(data, 0, bytesRead);
}
}
}
}
}