查看跨域规则

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。

您可以通过ObsClient.GetBucketCors查看桶的跨域规则。以下代码展示了如何查看跨域规则：

// 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.html
string 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);
// 查看跨域规则
try
{

    GetBucketCorsRequest request = new GetBucketCorsRequest();
    request.BucketName = "bucketname";
    GetBucketCorsResponse response = client.GetBucketCors(request);
    foreach (CorsRule rule in response.Configuration.Rules)
    {
        Console.WriteLine("rule id is: {0}\n", rule.Id);
        foreach (string allowOrigin in rule.AllowedOrigins)
        {
            Console.WriteLine("allowOrigin is: {0}\n", allowOrigin);
        }
        foreach (string allowHeader in rule.AllowedHeaders)
        {
            Console.WriteLine("allowHeader is: {0}\n", allowHeader);
        }
        foreach (HttpVerb allowMethod in rule.AllowedMethods)
        {
            Console.WriteLine("allowMethod is: {0}\n", allowMethod);
        }
        foreach (string exposeHeader in rule.ExposeHeaders)
        {
            Console.WriteLine("exposeHeader is: {0}\n", exposeHeader);
        }
        Console.WriteLine("rule maxAgeSeconds is: {0}\n", rule.MaxAgeSeconds);

    }
}
catch (ObsException ex)
{
    Console.WriteLine("ErrorCode: {0}", ex.ErrorCode);
    Console.WriteLine("ErrorMessage: {0}", ex.ErrorMessage);
}