public void setBucketCrossOriginConfiguration(String bucketName, BucketCrossOriginConfiguration bucketCrossOriginConfiguration);

// bucket的命名格式为 BucketName-APPID ，此处填写的存储桶名称必须为此格式
String bucketName = "examplebucket-1250000000";
BucketCrossOriginConfiguration bucketCORS = new BucketCrossOriginConfiguration();
List<CORSRule> corsRules = new ArrayList<CORSRule>();
CORSRule corsRule = new CORSRule();
// 规则名称
corsRule.setId("set-bucket-cors-test");
// 允许的 HTTP 方法
corsRule.setAllowedMethods(CORSRule.AllowedMethods.PUT, CORSRule.AllowedMethods.GET, CORSRule.AllowedMethods.HEAD);
corsRule.setAllowedHeaders("x-cos-grant-full-control");
corsRule.setAllowedOrigins("http://mail.qq.com", "http://www.qq.com", "http://video.qq.com");
corsRule.setExposedHeaders("x-cos-request-id");
corsRule.setMaxAgeSeconds(60);
corsRules.add(corsRule);
bucketCORS.setRules(corsRules);
cosClient.setBucketCrossOriginConfiguration(bucketName, bucketCORS);

public BucketCrossOriginConfiguration getBucketCrossOriginConfiguration(String bucketName)
throws CosClientException, CosServiceException;

// bucket的命名格式为 BucketName-APPID ，此处填写的存储桶名称必须为此格式
String bucketName = "examplebucket-1250000000";
BucketCrossOriginConfiguration corsGet = cosClient.getBucketCrossOriginConfiguration(bucketName);
List<CORSRule> corsRules = corsGet.getRules();
for (CORSRule rule : corsRules) {
    List<CORSRule.AllowedMethods> allowedMethods = rule.getAllowedMethods();
    List<String> allowedHeaders = rule.getAllowedHeaders();
    List<String> allowedOrigins = rule.getAllowedOrigins();
    List<String> exposedHeaders = rule.getExposedHeaders();
    int maxAgeSeconds = rule.getMaxAgeSeconds();
}

public void deleteBucketCrossOriginConfiguration(String bucketName)
throws CosClientException, CosServiceException;

//存储桶的命名格式为 BucketName-APPID
String bucketName = "examplebucket-1250000000";
cosClient.deleteBucketCrossOriginConfiguration(bucketName);