.NET-File, XmlDocument, WebService读写文件APIs总结

var path = Path.Combine(Environment.CurrentDirectory, "App.config");
if (!File.Exists(path))
throw new FileNotFoundException("本地App.config文件不存在！");
byte[] byteArray = File.ReadAllBytes(path); //读路径中的文件得到字节数组

var path = Path.Combine(Environment.CurrentDirectory, "App.config");
//删除原有模板
if (File.Exists(path))
{
File.Delete(path);
}
if (bytes != null)
File.WriteAllBytes(localAppConfigPath, bytes);

var doc = new XmlDocument();
var path = Path.Combine(Environment.CurrentDirectory, "App.config");
if (!File.Exists(path))
throw new FileNotFoundException("本地app.config文件不存在！");
doc.Load(path);
byte[] bytes = Encoding.ASCII.GetBytes(doc.InnerXml);

doc.RemoveAll();
doc.InnerXml = docServer.InnerXml;
doc.Save(path);

[WebMethod]
public byte[] ReadFromFile(string fileName)
{
try

4000
{
fileName = Path.Combine("ServerFiles", fileName);
fileName = Path.Combine(Server.MapPath("."), fileName);
if (File.Exists(fileName))
{
FileStream stream = File.Open(fileName, FileMode.Open);
byte[] buffer = new byte[stream.Length];
stream.Read(buffer, 0, ((int)stream.Length));
stream.Close();
return buffer;
}
throw new Exception("服务器上的文件不存在！");
}
catch (Exception ex)
{
throw ex;
}
}

[WebMethod]
public bool WriteToFile(string fileName, byte[] buffer)
{
try
{
fileName = Path.Combine("ServerFiles", fileName);
fileName = Path.Combine(Server.MapPath("."), fileName);
FileStream stream = new FileStream(fileName, FileMode.Create, FileAccess.ReadWrite);
stream.Write(buffer, 0, buffer.Length);
stream.Close();
return true;
}
catch (Exception ex)
{
throw ex;
}

}