阿里云存储封装类 AliYunOssUtility

来源：互联网发布：网络上sn是什么意思啊编辑：程序博客网时间：2024/05/01 21:17
using Aliyun.OpenServices;using Aliyun.OpenServices.OpenStorageService;using System;using System.Collections.Generic;using System.Configuration;using System.Drawing;using System.IO;using System.Linq;using System.Text;namespace Utility{    public class AliYunOssUtility    {        #region FileTypeEnum        public enum FileTypeEnum        {            none,            jpg,            gif,            png,            mp4,            doc,            docx,            ppt,            pptx,            rar,            zip                   }         #endregion        #region private        private String BucketName;        private ClientConfiguration clienConfig;        private Uri uri = new Uri("http://oss.aliyuncs.com");        private readonly string aliyunKey = ConfigurationManager.AppSettings["AppAliYunKey"] != null ? ConfigurationManager.AppSettings["AppAliYunKey"].ToString() : "*********";        private readonly string aliyunSecrect = ConfigurationManager.AppSettings["AppAliYunSecrect"] != null ? ConfigurationManager.AppSettings["AppAliYunSecrect"].ToString() : "*******";        private Aliyun.OpenServices.OpenStorageService.OssClient ossClient;        private Aliyun.OpenServices.OpenStorageService.ObjectMetadata meta;         #endregion                    public AliYunOssUtility(string bucketName = "upload")        {            BucketName = bucketName;            Init();        }        public void Init()        {            clienConfig = new ClientConfiguration();            clienConfig.ConnectionTimeout = 300000;            uri = new Uri("http://oss.aliyuncs.com");            ossClient = new Aliyun.OpenServices.OpenStorageService.OssClient(uri, aliyunKey, aliyunSecrect, clienConfig);            meta = new Aliyun.OpenServices.OpenStorageService.ObjectMetadata();        }        #region PutObject        public void PutObject(string key, Stream stream, FileTypeEnum fileType)        {            switch (fileType)            {                case FileTypeEnum.jpg: meta.ContentType = "image/jpeg"; break;                case FileTypeEnum.gif: meta.ContentType = "image/gif"; break;                case FileTypeEnum.png: meta.ContentType = "image/png"; break;                case FileTypeEnum.mp4: meta.ContentType = "video/mp4"; break;                case FileTypeEnum.doc: meta.ContentType = "application/msword"; break;                case FileTypeEnum.ppt: meta.ContentType = "applications-powerpoint"; break;                case FileTypeEnum.rar: meta.ContentType = "application/x-rar-compressed"; break;                case FileTypeEnum.zip: meta.ContentType = "application/x-zip-compressed"; break;            }            PutObjectResult result = ossClient.PutObject(BucketName, key, stream, meta);        }         #endregion        #region PutObject fileName        public void PutObject(string key, string fileName, FileTypeEnum fileType = FileTypeEnum.none)        {            FileStream fileStream = new FileStream(fileName, FileMode.Open);            fileStream.Seek(0, SeekOrigin.Begin);            string FileExtension = fileName.Substring(fileName.LastIndexOf('.')).ToLower();            if (fileType == FileTypeEnum.none)            {                switch (FileExtension)                {                    case ".jpg": fileType = FileTypeEnum.jpg; break;                    case ".gif": fileType = FileTypeEnum.gif; break;                    case ".png": fileType = FileTypeEnum.png; break;                    case ".mp4": fileType = FileTypeEnum.mp4; break;                    case ".doc":                    case ".docx": fileType = FileTypeEnum.doc; break;                    case ".ppt":                    case ".pptx": fileType = FileTypeEnum.ppt; break;                    case ".rar": fileType = FileTypeEnum.rar; break;                    case ".zip": fileType = FileTypeEnum.zip; break;                }            }            PutObject(key, fileStream, fileType);            fileStream.Close();        }         #endregion        #region GetBitmap        public Bitmap GetBitmap(string key)        {            OssObject ossObject = null;            Bitmap bmp = null;            try            {                ossObject = ossClient.GetObject(BucketName, key);                if (ossObject != null && ossObject.Content != null)                {                    bmp = new Bitmap((Image)new Bitmap(ossObject.Content));                    //string imgurl = ossClient.GeneratePresignedUri(bucketName, key, DateTime.Now.AddMinutes(10)).AbsoluteUri;                }            }            catch            {            }            return bmp;        }         #endregion        public void Delete(string key)        {            ossClient.DeleteObject(BucketName, key);        }    }}
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