【ASP.NET 进阶】获取MP3文件信息并显示专辑图片

突发奇想，想弄个显示MP3文件信息和专辑图片的小Demo，个人不是大牛，遂百度之，总算搞定，现分享如下。

效果图：

GIF效果图:

主要是依靠2个DLL文件：ID3.dll 和 Interop.Shell32.dll，步骤如下：

1.保存音乐文件到本地

             #region 保存音乐文件到本地

                string strMp3 = @"~/upload/musics/";
                if (!Directory.Exists(Server.MapPath(strMp3)))
                {
                    Directory.CreateDirectory(Server.MapPath(strMp3));  
                }
                strMp3+= fileMp3.FileName ;
                if (File.Exists(Server.MapPath(strMp3)))
                {
                    File.Delete(Server.MapPath(strMp3));
                }
                fileMp3.SaveAs(Server.MapPath(strMp3));

                #endregion    

2.获取音乐文件信息

                #region 获取音乐文件信息
                string mp3InfoInterHtml = "";
                ShellClass sh = new ShellClass();
                Folder dir = sh.NameSpace(Path.GetDirectoryName(Server.MapPath(strMp3)));
                FolderItem item = dir.ParseName(Path.GetFileName(Server.MapPath(strMp3)));
                mp3InfoInterHtml += "文件名：" + dir.GetDetailsOf(item, 0)+"<br>";
                mp3InfoInterHtml += "文件大小：" + dir.GetDetailsOf(item, 1) + "<br>";
                mp3InfoInterHtml += "歌曲名：" + dir.GetDetailsOf(item, 21) + "<br>";
                mp3InfoInterHtml += "歌手：" + dir.GetDetailsOf(item, 13) + "<br>";
                mp3InfoInterHtml += "专辑：" + dir.GetDetailsOf(item, 14) + "<br>";
                mp3InfoInterHtml += "时长：" + dir.GetDetailsOf(item, 27) + "<br>";
                #endregion

3.显示专辑图片

                #region 显示专辑图片

                string picturePath = @"~/image/play_null_img.png";
                if (!Directory.Exists(Server.MapPath(@"~/upload/images/")))
                {
                    Directory.CreateDirectory(Server.MapPath(@"~/upload/images/"));
                }
                // 加载MP3
                ID3Info info = new ID3Info(Server.MapPath(strMp3), true);
                System.Drawing.Image image = null;
                if (info.ID3v2Info.AttachedPictureFrames.Count > 0)
                {
                    image = System.Drawing.Image.FromStream(info.ID3v2Info.AttachedPictureFrames.Items[0].Data);
                    picturePath = @"~/upload/images/" +DateTime.Now.ToString("yyyyMMddHHmmss")+ ".png";
                    if (File.Exists(Server.MapPath(picturePath)))
                    {
                        File.Delete(Server.MapPath(picturePath));
                    }
                    image.Save(Server.MapPath(picturePath));
                }
                imgMP3.ImageUrl = picturePath;
                dMp3.InnerHtml = mp3InfoInterHtml;

                #endregion

4.修改文件上传限制

 <httpRuntime maxRequestLength="1048576" executionTimeout="3600" />

源代码：GetMp3Info.zip

参考文章：

http://www.cnblogs.com/08shiyan/p/3579822.html

http://www.codeproject.com/Articles/17890/Do-Anything-With-ID