四、C#简单操作MinIO
Healper类
using Minio;
using Minio.DataModel;
using Minio.Exceptions;
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace TestMinIO
{
public static class MinIO
{
#region 操作存储桶
/// <summary>创建存储桶
/// 创建存储桶
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <param name="loc">可选参数</param>
/// <returns></returns>
public async static Task<bool> MakeBucket(MinioClient minio, string bucketName, string loc = "us-east-1")
{
bool flag = false;
try
{
bool found = await minio.BucketExistsAsync(bucketName);
if (found)
{
throw new Exception(string.Format("存储桶\[{0}\]已存在", bucketName));
}
else
{
await minio.MakeBucketAsync(bucketName, loc);
flag = true;
}
}
catch (Exception e)
{
throw new Exception(e.Message);
}
return flag;
}
/// <summary>列出所有的存储桶
/// 列出所有的存储桶
/// </summary>
/// <param name="minio">连接实例</param>
/// <returns></returns>
public async static Task<Tuple<bool, Minio.DataModel.ListAllMyBucketsResult>> ListBuckets(MinioClient minio)
{
bool flag = false;
var list = new Minio.DataModel.ListAllMyBucketsResult();
try
{
list = await minio.ListBucketsAsync();
flag = true;
//foreach (var bucket in list.Buckets)
//{
// Console.WriteLine($"{bucket.Name} {bucket.CreationDateDateTime}");
//}
}
catch (Exception e)
{
throw new Exception(e.Message);
}
return Tuple.Create(flag, list);
}
/// <summary>检查存储桶是否存在
/// 检查存储桶是否存在
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <returns></returns>
public async static Task<bool> BucketExists(MinioClient minio, string bucketName)
{
bool flag = false;
try
{
flag = await minio.BucketExistsAsync(bucketName);
}
catch (Exception e)
{
throw new Exception(e.Message);
}
return flag;
}
/// <summary>删除一个存储桶
/// 删除一个存储桶
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <returns></returns>
public async static Task<bool> RemoveBucket(MinioClient minio, string bucketName)
{
bool flag = false;
try
{
bool found = await minio.BucketExistsAsync(bucketName);
if (found)
{
await minio.RemoveBucketAsync(bucketName);
flag = true;
}
else
{
throw new Exception(string.Format("存储桶\[{0}\]不存在", bucketName));
}
}
catch (Exception e)
{
throw new Exception(e.Message);
}
return flag;
}
/// <summary>列出存储桶里的对象
/// 列出存储桶里的对象
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <param name="prefix">对象的前缀</param>
/// <param name="recursive">true代表递归查找，false代表类似文件夹查找，以'/'分隔，不查子文件夹</param>
public static Tuple<bool, IObservable<Item>> ListObjects(MinioClient minio, string bucketName, string prefix = null, bool recursive = true)
{
bool flag = false;
IObservable<Item> observable = null;
try
{
var found = minio.BucketExistsAsync(bucketName);
if (found.Result)
{
observable = minio.ListObjectsAsync(bucketName, prefix, recursive);
flag = true;
}
else
{
throw new Exception(string.Format("存储桶\[{0}\]不存在", bucketName));
}
//IDisposable subscription = observable.Subscribe(
// item => Console.WriteLine($"Object: {item.Key}"),
// ex => Console.WriteLine($"OnError: {ex}"),
// () => Console.WriteLine($"Listed all objects in bucket {bucketName}\\n"));
}
catch (Exception e)
{
throw new Exception(e.Message);
}
return Tuple.Create(flag, observable);
}
/// <summary>列出存储桶中未完整上传的对象
/// 列出存储桶中未完整上传的对象
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <param name="prefix">对象的前缀</param>
/// <param name="recursive">true代表递归查找，false代表类似文件夹查找，以'/'分隔，不查子文件夹</param>
/// <returns></returns>
public static Tuple<bool, IObservable<Upload>> ListIncompleteUploads(MinioClient minio, string bucketName, string prefix = null, bool recursive = true)
{
bool flag = false;
IObservable<Upload> observable = null;
try
{
var found = minio.BucketExistsAsync(bucketName);
if (found.Result)
{
observable = minio.ListIncompleteUploads(bucketName, prefix, recursive);
flag = true;
}
else
{
throw new Exception(string.Format("存储桶\[{0}\]不存在", bucketName));
}
//IDisposable subscription = observable.Subscribe(
// item => Console.WriteLine($"OnNext: {item.Key}"),
// ex => Console.WriteLine($"OnError: {ex.Message}"),
// () => Console.WriteLine($"Listed the pending uploads to bucket {bucketName}"));
}
catch (Exception e)
{
throw new Exception(e.Message);
}
return Tuple.Create(flag, observable);
}
#endregion
#region 存储桶策略
/// <summary>获取存储桶或者对象前缀的访问权限
/// 获取存储桶或者对象前缀的访问权限
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <returns></returns>
public async static Task<Tuple<bool,string>> GetPolicy(MinioClient minio, string bucketName)
{
bool flag = false;
string policyJson = string.Empty;
try
{
var found = minio.BucketExistsAsync(bucketName);
if (found.Result)
{
policyJson = await minio.GetPolicyAsync(bucketName);
flag = true;
}
else
{
throw new Exception(string.Format("存储桶\[{0}\]不存在", bucketName));
}
}
catch (Exception e)
{
throw new Exception(e.Message);
}
return Tuple.Create(flag, policyJson);
}
/// <summary>针对存储桶和对象前缀设置访问策略
/// 针对存储桶和对象前缀设置访问策略
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <returns></returns>
public async static Task<bool> SetPolicy(MinioClient minio, string bucketName)
{
bool flag = false;
try
{
bool found = await minio.BucketExistsAsync(bucketName);
if (found)
{
string policyJson = $@"{{""Version"":""2012-10-17"",""Statement"":\[{{""Action"":\[""s3:GetBucketLocation""\],""Effect"":""Allow"",""Principal"":{{""AWS"":\[""\*""\]}},""Resource"":\[""arn:aws:s3:::{bucketName}""\],""Sid"":""""}},{{""Action"":\[""s3:ListBucket""\],""Condition"":{{""StringEquals"":{{""s3:prefix"":\[""foo"",""prefix/""\]}}}},""Effect"":""Allow"",""Principal"":{{""AWS"":\[""\*""\]}},""Resource"":\[""arn:aws:s3:::{bucketName}""\],""Sid"":""""}},{{""Action"":\[""s3:GetObject""\],""Effect"":""Allow"",""Principal"":{{""AWS"":\[""\*""\]}},""Resource"":\[""arn:aws:s3:::{bucketName}/foo\*"",""arn:aws:s3:::{bucketName}/prefix/\*""\],""Sid"":""""}}\]}}";
await minio.SetPolicyAsync(bucketName, policyJson);
flag = true;
}
else
{
throw new Exception(string.Format("存储桶\[{0}\]不存在", bucketName));
}
}
catch (Exception e)
{
throw new Exception(e.Message);
}
return flag;
}
#endregion
#region 存储桶通知
/// <summary>获取存储桶的通知配置
/// 获取存储桶的通知配置
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <returns></returns>
private async static Task<Tuple<bool,string>> GetBucketNotification(MinioClient minio, string bucketName)
{
bool flag = false;
string Ret = string.Empty;
try
{
bool found = await minio.BucketExistsAsync(bucketName);
if (found)
{
BucketNotification notifications = await minio.GetBucketNotificationsAsync(bucketName);
Ret = notifications.ToXML();
flag = true;
}
else
{
throw new Exception(string.Format("存储桶\[{0}\]不存在", bucketName));
}
}
catch (MinioException e)
{
throw new Exception(e.Message);
}
return Tuple.Create(flag, Ret);
}
/// <summary>给存储桶设置通知
/// 给存储桶设置通知
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <returns></returns>
private async static Task<bool> SetBucketNotification(MinioClient minio, string bucketName)
{
bool flag = false;
try
{
bool found = await minio.BucketExistsAsync(bucketName);
if (found)
{
BucketNotification notification = new BucketNotification();
Arn topicArn = new Arn("aws", "sns", "us-west-1", "412334153608", "topicminio");
TopicConfig topicConfiguration = new TopicConfig(topicArn);
List<EventType> events = new List<EventType>() { EventType.ObjectCreatedPut, EventType.ObjectCreatedCopy };
topicConfiguration.AddEvents(events);
topicConfiguration.AddFilterPrefix("images");
topicConfiguration.AddFilterSuffix("jpg");
notification.AddTopic(topicConfiguration);
QueueConfig queueConfiguration = new QueueConfig("arn:aws:sqs:us-west-1:482314153608:testminioqueue1");
queueConfiguration.AddEvents(new List<EventType>() { EventType.ObjectCreatedCompleteMultipartUpload });
notification.AddQueue(queueConfiguration);
await minio.SetBucketNotificationsAsync(bucketName, notification);
flag = true;
}
else
{
throw new Exception(string.Format("存储桶\[{0}\]不存在", bucketName));
}
}
catch (MinioException e)
{
throw new Exception(e.Message);
}
return flag;
}
/// <summary>删除存储桶上所有配置的通知
/// 删除存储桶上所有配置的通知
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <returns></returns>
private async static Task<bool> RemoveAllBucketNotifications(MinioClient minio, string bucketName)
{
bool flag = false;
try
{
bool found = await minio.BucketExistsAsync(bucketName);
if (found)
{
await minio.RemoveAllBucketNotificationsAsync(bucketName);
flag = true;
}
else
{
throw new Exception(string.Format("存储桶\[{0}\]不存在", bucketName));
}
}
catch (MinioException e)
{
throw new Exception(e.Message);
}
return flag;
}
#endregion
#region 操作文件对象
/// <summary>
/// 从桶下载文件到本地
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <param name="objectName">存储桶里的对象名称</param>
/// <param name="fileName">本地路径</param>
/// <param name="sse"></param>
/// <returns></returns>
public async static Task<bool> FGetObject(MinioClient minio, string bucketName, string objectName, string fileName, ServerSideEncryption sse = null)
{
bool flag = false;
try
{
bool found = await minio.BucketExistsAsync(bucketName);
if (found)
{
if (File.Exists(fileName))
{
File.Delete(fileName);
}
await minio.GetObjectAsync(bucketName, objectName, fileName, sse).ConfigureAwait(false);
flag = true;
}
else
{
throw new Exception(string.Format("存储桶\[{0}\]不存在", bucketName));
}
}
catch (MinioException e)
{
throw new Exception(e.Message);
}
return flag;
}
/// <summary>上传本地文件至存储桶
/// 上传本地文件至存储桶
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <param name="objectName">存储桶里的对象名称</param>
/// <param name="fileName">本地路径</param>
/// <returns></returns>
public async static Task<bool> FPutObject(MinioClient minio, string bucketName, string objectName, string fileName)
{
bool flag = false;
try
{
bool found = await minio.BucketExistsAsync(bucketName);
if (found)
{
await minio.PutObjectAsync(bucketName, objectName, fileName, contentType: "application/octet-stream");
flag = true;
}
else
{
throw new Exception(string.Format("存储桶\[{0}\]不存在", bucketName));
}
}
catch (MinioException e)
{
throw new Exception(e.Message);
}
return flag;
}
#endregion
#region Presigned操作
/// <summary>生成一个给HTTP GET请求用的presigned URL。浏览器/移动端的客户端可以用这个URL进行下载，即使其所在的存储桶是私有的。这个presigned URL可以设置一个失效时间，默认值是7天。
/// 生成一个给HTTP GET请求用的presigned URL。浏览器/移动端的客户端可以用这个URL进行下载，即使其所在的存储桶是私有的。这个presigned URL可以设置一个失效时间，默认值是7天。
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <param name="objectName">存储桶里的对象名称</param>
/// <param name="expiresInt">失效时间（以秒为单位），默认是7天，不得大于七天</param>
/// <param name="reqParams">额外的响应头信息，支持response-expires、response-content-type、response-cache-control、response-content-disposition</param>
/// <returns></returns>
public async static Task<Tuple<bool, string>> PresignedGetObject(MinioClient minio, string bucketName, string objectName, int expiresInt = 1000)
{
bool flag = false;
string Ret = string.Empty;
try
{
bool found = await minio.BucketExistsAsync(bucketName);
if (found)
{
var reqParams = new Dictionary<string, string> { { "response-content-type", "application/json" } };
string presignedUrl = await minio.PresignedGetObjectAsync(bucketName, objectName, expiresInt, reqParams);
Ret = presignedUrl;
flag = true;
}
else
{
throw new Exception(string.Format("存储桶\[{0}\]不存在", bucketName));
}
}
catch (Exception e)
{
throw new Exception(e.Message);
}
return Tuple.Create(flag, Ret);
}
/// <summary>生成一个给HTTP PUT请求用的presigned URL。浏览器/移动端的客户端可以用这个URL进行上传，即使其所在的存储桶是私有的。这个presigned URL可以设置一个失效时间，默认值是7天。
/// 生成一个给HTTP PUT请求用的presigned URL。浏览器/移动端的客户端可以用这个URL进行上传，即使其所在的存储桶是私有的。这个presigned URL可以设置一个失效时间，默认值是7天。
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <param name="objectName">存储桶里的对象名称</param>
/// <param name="expiresInt">失效时间（以秒为单位），默认是7天，不得大于七天</param>
/// <returns></returns>
public async static Task<Tuple<bool, string>> PresignedPutObject(MinioClient minio, string bucketName, string objectName, int expiresInt = 1000)
{
bool flag = false;
string Ret = string.Empty;
try
{
bool found = await minio.BucketExistsAsync(bucketName);
if (found)
{
string presignedUrl = await minio.PresignedPutObjectAsync(bucketName, objectName, expiresInt);
Ret = presignedUrl;
flag = true;
}
else
{
throw new Exception(string.Format("存储桶\[{0}\]不存在", bucketName));
}
}
catch (Exception e)
{
throw new Exception(e.Message);
}
return Tuple.Create(flag, Ret);
}
/// <summary>允许给POST请求的presigned URL设置策略，比如接收对象上传的存储桶名称的策略，key名称前缀，过期策略。
/// 允许给POST请求的presigned URL设置策略，比如接收对象上传的存储桶名称的策略，key名称前缀，过期策略。
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="PostPolicy">对象的post策略</param>
/// <returns></returns>
public async static Task<Tuple<bool, string, Dictionary<string, string>>> PresignedPostPolicy(MinioClient minio)
{
bool flag = false;
Tuple<string, Dictionary<string, string>> tdic = null;
try
{
PostPolicy form = new PostPolicy();
DateTime expiration = DateTime.UtcNow;
form.SetExpires(expiration.AddDays(10));
form.SetKey("my-objectname");
form.SetBucket("my-bucketname");
Tuple<string, Dictionary<string, string>> tuple = await minio.PresignedPostPolicyAsync(form);
tdic = tuple;
flag = true;
//string curlCommand = "curl -X POST ";
//foreach (KeyValuePair<string, string> pair in tuple.Item2)
//{
// curlCommand = curlCommand + $" -F {pair.Key}={pair.Value}";
//}
//curlCommand = curlCommand + " -F file=@/etc/bashrc " + tuple.Item1; // https://s3.amazonaws.com/my-bucketname";
}
catch (Exception e)
{
throw new Exception(e.Message);
}
return Tuple.Create(flag, tdic.Item1, tdic.Item2);
}
#endregion
#region 操作对象
/// <summary>返回对象数据的流
/// 返回对象数据的流
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <param name="objectName">存储桶里的对象名称</param>
/// <param name="callback">处理流的回调函数</param>
/// <returns></returns>
public async static Task<bool> GetObjectAsync(MinioClient minio, string bucketName, string objectName, Action<Stream> callback)
{
bool flag = false;
try
{
bool found = await minio.BucketExistsAsync(bucketName);
if (found)
{
await minio.StatObjectAsync(bucketName, objectName);
await minio.GetObjectAsync(bucketName, objectName, callback);
flag = true;
}
else
{
throw new Exception(string.Format("存储桶\[{0}\]不存在", bucketName));
}
}
catch (MinioException e)
{
throw new Exception(e.Message);
}
return flag;
}
/// <summary>下载对象指定区域的字节数组做为流。offset和length都必须传
/// 下载对象指定区域的字节数组做为流。offset和length都必须传
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <param name="objectName">存储桶里的对象名称</param>
/// <param name="offset">offset 是起始字节的位置</param>
/// <param name="length">length是要读取的长度</param>
/// <param name="callback">处理流的回调函数</param>
/// <returns></returns>
public async static Task<bool> GetObjectAsync(MinioClient minio, string bucketName, string objectName, long offset, long length, Action<Stream> callback)
{
bool flag = false;
try
{
bool found = await minio.BucketExistsAsync(bucketName);
if (found)
{
await minio.StatObjectAsync(bucketName, objectName);
await minio.GetObjectAsync(bucketName, objectName, offset, length, callback);
flag = true;
}
else
{
throw new Exception(string.Format("存储桶\[{0}\]不存在", bucketName));
}
}
catch (MinioException e)
{
throw new Exception(e.Message);
}
return flag;
}
/// <summary>下载并将文件保存到本地文件系统
/// 下载并将文件保存到本地文件系统
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <param name="objectName">存储桶里的对象名称</param>
/// <param name="fileName">本地文件路径</param>
/// <returns></returns>
public async static Task<bool> GetObjectAsync(MinioClient minio, string bucketName, string objectName, string fileName)
{
bool flag = false;
try
{
bool found = await minio.BucketExistsAsync(bucketName);
if (found)
{
if (File.Exists(fileName))
{
File.Delete(fileName);
}
await minio.StatObjectAsync(bucketName, objectName);
await minio.GetObjectAsync(bucketName, objectName, fileName);
flag = true;
}
else
{
throw new Exception(string.Format("存储桶\[{0}\]不存在", bucketName));
}
}
catch (MinioException e)
{
throw new Exception(e.Message);
}
return flag;
}
/// <summary>通过文件上传到对象中
/// 通过文件上传到对象中
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <param name="objectName">存储桶里的对象名称</param>
/// <param name="filePath">要上传的本地文件名</param>
/// <param name="contentType">文件的Content type，默认是"application/octet-stream"</param>
/// <param name="metaData">元数据头信息的Dictionary对象，默认是null</param>
/// <returns></returns>
public async static Task<bool> PutObjectAsync(MinioClient minio, string bucketName, string objectName, string filePath, string contentType = "application/octet-stream", Dictionary<string, string> metaData = null)
{
bool flag = false;
try
{
bool found = await minio.BucketExistsAsync(bucketName);
if (found)
{
await minio.PutObjectAsync(bucketName, objectName, filePath, contentType, metaData);
flag = true;
}
else
{
throw new Exception(string.Format("存储桶\[{0}\]不存在", bucketName));
}
}
catch (Exception e)
{
throw new Exception(e.Message);
}
return flag;
}
/// <summary>通过Stream上传对象
/// 通过Stream上传对象
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <param name="objectName">存储桶里的对象名称</param>
/// <param name="data">要上传的Stream对象</param>
/// <param name="size">流的大小</param>
/// <param name="contentType">文件的Content type，默认是"application/octet-stream"</param>
/// <param name="metaData">元数据头信息的Dictionary对象，默认是null</param>
/// <returns></returns>
public async static Task<bool> PutObjectAsync(MinioClient minio, string bucketName, string objectName, Stream data, long size, string contentType = "application/octet-stream", Dictionary<string, string> metaData = null)
{
bool flag = false;
try
{
bool found = await minio.BucketExistsAsync(bucketName);
if (found)
{
//byte\[\] bs = File.ReadAllBytes(fileName);
//System.IO.MemoryStream filestream = new System.IO.MemoryStream(bs);
await minio.PutObjectAsync(bucketName, objectName, data, size, contentType, metaData);
flag = true;
}
else
{
throw new Exception(string.Format("存储桶\[{0}\]不存在", bucketName));
}
}
catch (MinioException e)
{
throw new Exception(e.Message);
}
return flag;
}
/// <summary>获取对象的元数据
/// 获取对象的元数据
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <param name="objectName">存储桶里的对象名称</param>
/// <returns></returns>
public async static Task<bool> StatObject(MinioClient minio, string bucketName, string bucketObject)
{
bool flag = false;
try
{
bool found = await minio.BucketExistsAsync(bucketName);
if (found)
{
ObjectStat statObject = await minio.StatObjectAsync(bucketName, bucketObject);
flag = true;
}
else
{
throw new Exception(string.Format("存储桶\[{0}\]不存在", bucketName));
}
}
catch (MinioException e)
{
throw new Exception(e.Message);
}
return flag;
}
/// <summary>从objectName指定的对象中将数据拷贝到destObjectName指定的对象
/// 从objectName指定的对象中将数据拷贝到destObjectName指定的对象
/// </summary>
/// <param name="minio"></param>
/// <param name="fromBucketName">源存储桶名称</param>
/// <param name="fromObjectName">源存储桶中的源对象名称</param>
/// <param name="destBucketName">目标存储桶名称</param>
/// <param name="destObjectName">要创建的目标对象名称,如果为空，默认为源对象名称</param>
/// <param name="copyConditions">拷贝操作的一些条件Map</param>
/// <param name="sseSrc"></param>
/// <param name="sseDest"></param>
/// <returns></returns>
public async static Task<bool> CopyObject(MinioClient minio, string fromBucketName, string fromObjectName, string destBucketName, string destObjectName, CopyConditions copyConditions = null, ServerSideEncryption sseSrc = null, ServerSideEncryption sseDest = null)
{
bool flag = false;
try
{
bool found = await minio.BucketExistsAsync(fromBucketName);
if (!found)
{
throw new Exception(string.Format("源存储桶\[{0}\]不存在", fromBucketName));
}
bool foundtwo = await minio.BucketExistsAsync(destBucketName);
if (!foundtwo)
{
throw new Exception(string.Format("目标存储桶\[{0}\]不存在", destBucketName));
}
await minio.CopyObjectAsync(fromBucketName, fromObjectName, destBucketName, destObjectName, copyConditions, null, sseSrc, sseDest);
flag = true;
}
catch (MinioException e)
{
throw new Exception(e.Message);
}
return flag;
}
/// <summary>删除一个对象
/// 删除一个对象
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <param name="objectName">存储桶里的对象名称</param>
/// <returns></returns>
public async static Task<bool> RemoveObject(MinioClient minio, string bucketName, string objectName)
{
bool flag = false;
try
{
bool found = await minio.BucketExistsAsync(bucketName);
if (found)
{
await minio.RemoveObjectAsync(bucketName, objectName);
flag = true;
}
else
{
throw new Exception(string.Format("存储桶\[{0}\]不存在", bucketName));
}
}
catch (MinioException e)
{
throw new Exception(e.Message);
}
return flag;
}
/// <summary>删除多个对象
/// 删除多个对象
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <param name="objectsList">含有多个对象名称的IEnumerable</param>
/// <returns></returns>
public static async Task<bool> RemoveObjects(MinioClient minio, string bucketName, List<string> objectsList)
{
bool flag = false;
try
{
bool found = await minio.BucketExistsAsync(bucketName);
if (found)
{
if (objectsList != null)
{
IObservable<DeleteError> objectsOservable = await minio.RemoveObjectAsync(bucketName, objectsList).ConfigureAwait(false);
flag = true;
//IDisposable objectsSubscription = objectsOservable.Subscribe(
// objDeleteError => Console.WriteLine($"Object: {objDeleteError.Key}"),
// ex => Console.WriteLine($"OnError: {ex}"),
// () =>
// {
// Console.WriteLine($"Removed objects in list from {bucketName}\\n");
// });
//return;
}
}
else
{
throw new Exception(string.Format("存储桶\[{0}\]不存在", bucketName));
}
}
catch (MinioException e)
{
throw new Exception(e.Message);
}
return flag;
}
/// <summary>删除一个未完整上传的对象
/// 删除一个未完整上传的对象
/// </summary>
/// <param name="minio">连接实例</param>
/// <param name="bucketName">存储桶名称</param>
/// <param name="objectName">存储桶里的对象名称</param>
/// <returns></returns>
public async static Task<bool> RemoveIncompleteUpload(MinioClient minio, string bucketName, string objectName)
{
bool flag = false;
try
{
bool found = await minio.BucketExistsAsync(bucketName);
if (found)
{
await minio.RemoveIncompleteUploadAsync(bucketName, objectName);
flag = true;
}
else
{
throw new Exception(string.Format("存储桶\[{0}\]不存在", bucketName));
}
}
catch (MinioException e)
{
throw new Exception(e.Message);
}
return flag;
}
#endregion
} }
枚举类
using System;
using System.Collections.Generic;
using System.Text;
namespace TestMinIO
{
///
public enum Content_Type
{
bmp,
biz,
exe,
gif,
html,
ico,
img,
jpe,
jpeg,
jpg,
movie,
mp3,
mp4,
pdf,
png,
ppt,
txt,
xls,
xsl,
apk
}
/// <summary>ContentType枚举帮助类
/// ContentType枚举帮助类
/// </summary>
public static class Helper
{
/// <summary>
/// 根据枚举返回ContentType
/// </summary>
/// <param name="type">枚举类型</param>
/// <returns></returns>
public static string DoContentType(Content\_Type type)
{
string Result = "application/octet-stream";
switch (type)
{
case Content\_Type.bmp:
Result = "application/x-bmp";
break;
case Content\_Type.biz:
Result = "text/xml";
break;
case Content\_Type.exe:
Result = "application/x-msdownload";
break;
case Content\_Type.gif:
Result = "image/gif";
break;
case Content\_Type.html:
Result = "text/html";
break;
case Content\_Type.ico:
Result = "image/x-icon";
break;
case Content\_Type.img:
Result = "application/x-img";
break;
case Content\_Type.jpe:
Result = "image/jpeg";
break;
case Content\_Type.jpeg:
Result = "image/jpeg";
break;
case Content\_Type.jpg:
Result = "image/jpeg";
break;
case Content\_Type.movie:
Result = "video/x-sgi-movie";
break;
case Content\_Type.mp3:
Result = "audio/mp3";
break;
case Content\_Type.mp4:
Result = "video/mpeg4";
break;
case Content\_Type.pdf:
Result = "application/pdf";
break;
case Content\_Type.png:
Result = "image/png";
break;
case Content\_Type.ppt:
Result = "application/x-ppt";
break;
case Content\_Type.txt:
Result = "text/plain";
break;
case Content\_Type.xls:
Result = "application/x-xls";
break;
case Content\_Type.xsl:
Result = "text/xml";
break;
case Content\_Type.apk:
Result = "application/vnd.android.package-archive";
break;
}
return Result;
}
} }
调用方法很简单，此处就不展示啦
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