如何在wcf中读取.mp3文件？
如何在wcf中读取.mp3文件？
提问于 2012-03-05 17:30:40
如何读取.mp3音频文件？我写了下面的代码。
public static byte[] ReadFully(Stream stream)
{
byte[] buffer = new byte[32768];
using (MemoryStream ms = new MemoryStream())
{
while (true)
{
int read = stream.Read(buffer, 0, buffer.Length);
if (read <= 0)
return ms.ToArray();
ms.Write(buffer, 0, read);
}
}它接受.3gp，.caf foramat streams .why它不接受.mp3文件？}
回答 1
Stack Overflow用户
回答已采纳
发布于 2012-03-05 21:41:56
我使用以下代码从REST WCF服务下载了一个mp3文件：
[WebGet]
public Stream GetMp3()
{
byte[] buffer;
WebOperationContext.Current.OutgoingResponse.ContentType = "audio/mp3";
using (FileStream ms = new FileStream(@"C:\Sample.mp3", FileMode.Open))
{
int length = (int)ms.Length;
WebOperationContext.Current.OutgoingResponse.ContentLength = length;
buffer = new byte[length];
int sum = 0;
int count;
while ((count = ms.Read(buffer, sum, length - sum)) > 0)
{
sum += count;
}
ms.Close();
}
return new MemoryStream(buffer);
}更新:上传mp3文件到Restful WCF服务
服务器端方法：
[WebInvoke]
public string RecieveMp3(Stream mp3Stream)
{
byte[] buffer = new byte[5000000];
using (FileStream ms = new FileStream("C:\\Temp\\Test1.mp3", FileMode.OpenOrCreate))
{
int read = mp3Stream.Read(buffer, 0, buffer.Length);
ms.Write(buffer, 0, read);
}
return "Recieved Mp3 file";
}注意: 1.确保你在文件夹上有权限为与运行wcf服务的应用程序池相关联的用户写入mp3文件。2.为了测试目的，我将字节数组大小硬编码为一个较大的值。
调用服务的客户端：
private string UseRestSharpApproachForFiles(string serviceBaseUrl, string resourceUrl, Method method, string filepath)
{
var client = new RestClient();
client.BaseUrl = serviceBaseUrl;
var request = new RestRequest(method) { DateFormat = DataFormat.Xml.ToString(), Resource = resourceUrl };
request.AddFile("stream", filepath);
var response = client.Execute(request);
string responseString;
if (response.StatusCode == HttpStatusCode.OK)
{
responseString = HttpUtility.HtmlDecode(response.Content);
}
else
{
responseString = response.StatusDescription + " --------------------" + HttpUtility.HtmlDecode(response.Content);
}
return responseString;
}我使用第三方dll来调用名为RestSharp的rest服务。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/9564320
复制相关文章
相似问题
腾讯云开发者
