对象存储服务 OBS-重写响应头

时间:2025-02-12 14:57:57

重写响应头

开发过程中,您有任何问题可以在github上提交issue,或者在华为云 对象存储服务 论坛中发帖求助。接口参考文档详细介绍了每个接口的参数和使用方法。

下载对象时,可以重写部分HTTP/HTTPS响应头信息。可重写的响应头信息见下表:

参数

作用

OBS .NET SDK对应属性

ContentType

重写HTTP/HTTPS响应中的Content-Type

GetObjectRequest.ResponseHeaderOverrides.ContentType

ContentLanguage

重写HTTP/HTTPS响应中的Content-Language

GetObjectRequest.ResponseHeaderOverrides.ContentLanguage

Expires

重写HTTP/HTTPS响应中的Expires

ObjectRepleaceMetadata.Expires

CacheControl

重写HTTP/HTTPS响应中的Cache-Control

GetObjectRequest.ResponseHeaderOverrides.CacheControl

ContentDisposition

重写HTTP/HTTPS响应中的Content-Disposition

GetObjectRequest.ResponseHeaderOverrides.ContentDisposition

ContentEncoding

重写HTTP/HTTPS响应中的Content-Encoding

GetObjectRequest.ResponseHeaderOverrides.ContentEncoding

以下代码展示了如何重写响应头:
// 初始化配置参数ObsConfig config = new ObsConfig();config.Endpoint = "https://your-endpoint";// 认证用的ak和sk硬编码到代码中或者明文存储都有很大的安全风险,建议在配置文件或者环境变量中密文存放,使用时解密,确保安全;本示例以ak和sk保存在环境变量中为例,运行本示例前请先在本地环境中设置环境变量AccessKeyID和SecretAccessKey。// 您可以登录访问管理控制台获取访问密钥AK/SK,获取方式请参见https://support.huaweicloud.com/usermanual-ca/ca_01_0003.htmlstring accessKey= Environment.GetEnvironmentVariable("AccessKeyID", EnvironmentVariableTarget.Machine);string secretKey= Environment.GetEnvironmentVariable("SecretAccessKey", EnvironmentVariableTarget.Machine);// 创建ObsClient实例ObsClient client = new ObsClient(accessKey, secretKey, config);// 下载对象时重写响应头try{    ResponseHeaderOverrides responseHeaderOverrides = new ResponseHeaderOverrides();    responseHeaderOverrides.ContentType = "image/jpeg";    GetObjectRequest request = new GetObjectRequest()    {        BucketName = "bucketname",        ObjectKey = "objectname",        ResponseHeaderOverrides = responseHeaderOverrides,    };    GetObjectResponse response = client.GetObject(request);    Console.WriteLine("Get object response: {0}", response.StatusCode);    Console.WriteLine("ContentType: {0}", response.ContentType);    response.Dispose();}catch (ObsException ex){   Console.WriteLine("ErrorCode: {0}", ex.ErrorCode);   Console.WriteLine("ErrorMessage: {0}", ex.ErrorMessage);}
support.huaweicloud.com/sdk-dotnet-devg-obs/obs_25_0507.html