Struct OssCredential 

pub struct OssCredential {
    pub presigned_url: String,
    pub object_key: Option<String>,
    pub original_filename: Option<String>,
}

OSS STS 临时凭证 + 预签名上传 URL

由 OssService 生成并返回给前端，前端凭此直接上传文件到 COS。

字段说明

字段	说明
presigned_url	COS 预签名上传 URL（含临时签名），前端 PUT 到此地址
object_key	COS 对象 Key，上传成功后前端回调时回传
original_filename	原始文件名（服务端回显，前端可能修改）

安全性

• STS 临时密钥有效期由配置 tencent.duration_seconds 控制
• 预签名 URL 通过 build_put_policy 限制单对象写入权限
• 文件大小限制由策略 content-length 条件控制

对应 Java 类

Java OssCredential。

Fields

presigned_url: String

COS 预签名上传 URL（含临时签名和 x-cos-security-token）

object_key: Option<String>

COS 对象存储 Key（上传后回调时需回传）

original_filename: Option<String>

原始文件名（服务端回显）

Trait Implementations

impl Clone for OssCredential

fn clone(&self) -> OssCredential

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for OssCredential

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for OssCredential

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for OssCredential

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.