更新时间:2023-11-08 gmt 08:00

流式上传-九游平台

流式上传使用obsputobjectwithdatarequest作为对象的数据源。您可以通过putobject上传您的数据流到obs。以下代码展示了如何进行流式上传:

上传字符串

static obsclient *client;
nsstring *endpoint = @"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.html
char* ak_env = getenv("accesskeyid");
char* sk_env = getenv("secretaccesskey");
nsstring *ak = [nsstring stringwithutf8string:ak_env];
nsstring *sk = [nsstring stringwithutf8string:sk_env];
// 初始化身份验证
obsstaticcredentialprovider *credentialprovider = [[obsstaticcredentialprovider alloc] initwithaccesskey:ak secretkey:sk];
    
//初始化服务配置
obsserviceconfiguration *conf = [[obsserviceconfiguration alloc] initwithurlstring:endpoint credentialprovider:credentialprovider];
    
// 初始化client
client = [[obsclient alloc] initwithconfiguration:conf];
    
// 流式上传字符串
obsputobjectwithdatarequest *request = [[obsputobjectwithdatarequest alloc]initwithbucketname:@"bucketname" objectkey:@"objectname" uploaddata:[@"hello" datausingencoding:nsutf8stringencoding]];
    
// 上传文件进度
request.uploadprogressblock = ^(int64_t bytessent, int64_t totalbytessent, int64_t totalbytesexpectedtosend) {
    nslog(@"%0.1f%%",(float)floor(totalbytessent*10000/totalbytesexpectedtosend)/100);
};
    
[client putobject:request completionhandler:^(obsputobjectresponse *response, nserror *error){
    nslog(@"%@",response);
}];

上传网络流

static obsclient *client;
nsstring *endpoint = @"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.html
char* ak_env = getenv("accesskeyid");
char* sk_env = getenv("secretaccesskey");
nsstring *ak = [nsstring stringwithutf8string:ak_env];
nsstring *sk = [nsstring stringwithutf8string:sk_env];
// 初始化身份验证
obsstaticcredentialprovider *credentialprovider = [[obsstaticcredentialprovider alloc] initwithaccesskey:ak secretkey:sk];
    
//初始化服务配置
obsserviceconfiguration *conf = [[obsserviceconfiguration alloc] initwithurlstring:endpoint credentialprovider:credentialprovider];
    
// 初始化client
client = [[obsclient alloc] initwithconfiguration:conf];
    
// 流式上传网络流
obsputobjectwithdatarequest *request = [[obsputobjectwithdatarequest alloc] initwithbucketname:@"bucketname" objectkey:@"objectname" uploaddataurl:[nsurl urlwithstring:@"dateurl"]];
    
// 上传文件进度
request.uploadprogressblock = ^(int64_t bytessent, int64_t totalbytessent, int64_t totalbytesexpectedtosend) {
    nslog(@"%0.1f%%",(float)floor(totalbytessent*10000/totalbytesexpectedtosend)/100);
};
    
[client putobject:request completionhandler:^(obsputobjectresponse *response, nserror *error){
   nslog(@"%@",response);
}];

上传文件流

static obsclient *client;
nsstring *endpoint = @"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.html
char* ak_env = getenv("accesskeyid");
char* sk_env = getenv("secretaccesskey");
nsstring *ak = [nsstring stringwithutf8string:ak_env];
nsstring *sk = [nsstring stringwithutf8string:sk_env];
// 初始化身份验证
obsstaticcredentialprovider *credentialprovider = [[obsstaticcredentialprovider alloc] initwithaccesskey:ak secretkey:sk];
    
//初始化服务配置
obsserviceconfiguration *conf = [[obsserviceconfiguration alloc] initwithurlstring:endpoint credentialprovider:credentialprovider];
    
// 初始化client
client = [[obsclient alloc] initwithconfiguration:conf];
    
nsstring *filepath = [[nsbundle mainbundle]pathforresource:@"filename" oftype:@"type"];
// 文件流上传
nsdata *uploaddata = [nsdata datawithcontentsoffile:filepath];
obsputobjectwithdatarequest *request = [[obsputobjectwithdatarequest alloc]initwithbucketname:@"bucketname" objectkey:@"test/image1" uploaddata:uploaddata];
    
// 上传文件进度
request.uploadprogressblock = ^(int64_t bytessent, int64_t totalbytessent, int64_t totalbytesexpectedtosend) {
   nslog(@"%0.1f%%",(float)floor(totalbytessent*10000/totalbytesexpectedtosend)/100);
};
    
[client putobject:request completionhandler:^(obsputobjectresponse *response, nserror *error){
    nslog(@"%@",response);
}];
  • 推荐使用的形式上传本地文件,而不是文件流形式。
  • 大文件上传建议使用分段上传
  • 上传的内容大小不能超过5gb。

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