Java SDK使用说明

安装

此处以Maven安装方式进行举例，在项目pom.xml文件中引入SDK：

<dependency>
  <groupId>com.aliyun</groupId>
  <artifactId>alibabacloud-live20161101</artifactId>
  <version>2.0.1</version>
</dependency>

使用

以下示例代码实现了使用SDK查询直播截图配置的功能。

// This file is auto-generated, don't edit it. Thanks.
package demo;

import com.aliyun.auth.credentials.Credential;
import com.aliyun.auth.credentials.provider.StaticCredentialProvider;
import com.aliyun.core.http.HttpClient;
import com.aliyun.core.http.HttpMethod;
import com.aliyun.core.http.ProxyOptions;
import com.aliyun.httpcomponent.httpclient.ApacheAsyncHttpClientBuilder;
import com.aliyun.sdk.service.live20161101.models.*;
import com.aliyun.sdk.service.live20161101.*;
import com.google.gson.Gson;
import darabonba.core.RequestConfiguration;
import darabonba.core.client.ClientOverrideConfiguration;
import darabonba.core.utils.CommonUtil;
import darabonba.core.TeaPair;

//import javax.net.ssl.KeyManager;
//import javax.net.ssl.X509TrustManager;
import java.net.InetSocketAddress;
import java.time.Duration;
import java.util.*;
import java.util.concurrent.CompletableFuture;
import java.io.*;

public class DescribeLiveSnapshotConfig {
    public static void main(String[] args) throws Exception {

        // HttpClient Configuration
        /*HttpClient httpClient = new ApacheAsyncHttpClientBuilder()
                .connectionTimeout(Duration.ofSeconds(10)) // Set the connection timeout time, the default is 10 seconds
                .responseTimeout(Duration.ofSeconds(10)) // Set the response timeout time, the default is 20 seconds
                .maxConnections(128) // Set the connection pool size
                .maxIdleTimeOut(Duration.ofSeconds(50)) // Set the connection pool timeout, the default is 30 seconds
                // Configure the proxy
                .proxy(new ProxyOptions(ProxyOptions.Type.HTTP, new InetSocketAddress("<YOUR-PROXY-HOSTNAME>", 9001))
                        .setCredentials("<YOUR-PROXY-USERNAME>", "<YOUR-PROXY-PASSWORD>"))
                // If it is an https connection, you need to configure the certificate, or ignore the certificate(.ignoreSSL(true))
                .x509TrustManagers(new X509TrustManager[]{})
                .keyManagers(new KeyManager[]{})
                .ignoreSSL(false)
                .build();*/

        // Configure Credentials authentication information, including ak, secret, token
        StaticCredentialProvider provider = StaticCredentialProvider.create(Credential.builder()
                // Please ensure that the environment variables ALIBABA_CLOUD_ACCESS_KEY_ID and ALIBABA_CLOUD_ACCESS_KEY_SECRET are set.
                .accessKeyId(System.getenv("ALIBABA_CLOUD_ACCESS_KEY_ID"))
                .accessKeySecret(System.getenv("ALIBABA_CLOUD_ACCESS_KEY_SECRET"))
                //.securityToken(System.getenv("ALIBABA_CLOUD_SECURITY_TOKEN")) // use STS token
                .build());

        // Configure the Client
        AsyncClient client = AsyncClient.builder()
                .region("<Your RegionId>") // Region ID
                //.httpClient(httpClient) // Use the configured HttpClient, otherwise use the default HttpClient (Apache HttpClient)
                .credentialsProvider(provider)
                //.serviceConfiguration(Configuration.create()) // Service-level configuration
                // Client-level configuration rewrite, can set Endpoint, Http request parameters, etc.
                .overrideConfiguration(
                        ClientOverrideConfiguration.create()
                                  // Endpoint 请参考 https://api.aliyun.com/product/live
                                .setEndpointOverride("live.aliyuncs.com")
                        //.setConnectTimeout(Duration.ofSeconds(30))
                )
                .build();

        // Parameter settings for API request
        DescribeLiveSnapshotConfigRequest describeLiveSnapshotConfigRequest = DescribeLiveSnapshotConfigRequest.builder()
                .domainName("<Your DomainName>")
                .appName("<Your AppName>")
                // Request-level configuration rewrite, can set Http request parameters, etc.
                // .requestConfiguration(RequestConfiguration.create().setHttpHeaders(new HttpHeaders()))
                .build();

        // Asynchronously get the return value of the API request
        CompletableFuture<DescribeLiveSnapshotConfigResponse> response = client.describeLiveSnapshotConfig(describeLiveSnapshotConfigRequest);
        // Synchronously get the return value of the API request
        DescribeLiveSnapshotConfigResponse resp = response.get();
        System.out.println(new Gson().toJson(resp));
        // Asynchronous processing of return values
        /*response.thenAccept(resp -> {
            System.out.println(new Gson().toJson(resp));
        }).exceptionally(throwable -> { // Handling exceptions
            System.out.println(throwable.getMessage());
            return null;
        });*/

        // Finally, close the client
        client.close();
    }

}

在以上示例中DescribeLiveSnapshotConfigResponse为反序列化后的响应对象，某些时候您可能需要直接获取响应结果HttpResponse，不需要进行反序列化，在此情况下只需更换调用方法即可。

HttpResponse httpResponse=client.doAction(describeLiveStreamSnapshotInfoRequest);
int status=httpResponse.getStatus();

使用说明：

• 当HTTP status大于等于200且小于300时，表示API调用成功。

• 当HTTP status大于等于300且小于500时，服务端SDK会提示ClientException，表示客户端错误。

• 当HTTP status大于等于500时，服务端SDK会提示ServerException，表示服务器端错误。

client.getAcsResponse与client.doAction两个方法都可以使用，您可以根据您业务的实际情况采用。

此处列举几个常用API。

资源控制

在您查看API的过程中，可能已留意到API有关授权信息的说明，比如在AddLiveAppSnapshotConfig - 添加直播截图配置API中，有以下关于授权信息的内容。

在为RAM用户授权的过程中，您已为RAM用户授予了API的访问权限。但有些时候您可能需要更细的权限控制，比如调用同一个API，RAM用户A只能操作DomainA域名，RAM用户B只能操作DomainB域名。如果您有这样的业务需求就可以通过资源控制进行实现，实现资源控制授权可参考文档自定义授权。