Simple Log Service:Initialize Simple Log Service SDK for Java

Prerequisites

• Simple Log Service SDK for Java is installed. For more information, see Install Simple Log Service SDK for Java.

• The required access credentials are configured. For more information, see Configure access credentials.

• The required endpoint is obtained.

  An endpoint is used to access an Alibaba Cloud service. In most cases, an endpoint is a URL. An endpoint specifies information about a service, such as the access protocol, hostname, port, and path. Clients can use the information to access the service. For more information, see Endpoints. Simple Log Service supports public endpoints, virtual private cloud (VPC) endpoints, and acceleration endpoints.

  • Public endpoints: If data is pulled over a public Simple Log Service endpoint, read traffic over the Internet is generated. For more information about billing, see Billable items of pay-by-ingested-data and Billable items of pay-by-feature. For more information about endpoints, see Endpoints.

  • VPC endpoints: If the Elastic Compute Service (ECS) instance that you use and your Simple Log Service project reside in the same region, we recommend that you use a VPC endpoint. For more information, see Endpoints.

  • Acceleration endpoints: If your server and Simple Log Service reside in different regions, such as in and outside China, network latency is high and transmission is unstable when data is transmitted over the Internet. In this case, you can use an acceleration endpoint. For more information, see Use the transfer acceleration feature.

Initialize a Client instance

 public Client(String endpoint, String  accessKeyId, String accessKeySecret)

package com.test.controller;

import com.aliyun.openservices.log.Client;
import com.aliyun.openservices.log.http.client.ClientConfiguration;
import com.aliyun.openservices.log.http.signer.SignVersion;

public class Sample {

    public static void main(String[] args) throws Exception {
        // Specify a Simple Log Service endpoint. In this example, the Simple Log Service endpoint for the China (Hangzhou) region is used. Replace the parameter value with the actual endpoint.
        String endpoint = "cn-beijing.log.aliyuncs.com";
        // Obtain an AccessKey ID and an AccessKey secret from environment variables. 
        String accessKeyId = System.getenv("ALIBABA_CLOUD_ACCESS_KEY_ID");
        String accessKeySecret = System.getenv("ALIBABA_CLOUD_ACCESS_KEY_SECRET");
        ClientConfiguration clientConfiguration = new ClientConfiguration();
        clientConfiguration.setRegion("cn-beijing");
        clientConfiguration.setSignatureVersion(SignVersion.V4);
        Client client = new Client(endpoint,
                accessKeyId,
                accessKeySecret,
                clientConfiguration);
    }
}

package com.test.controller;

import com.aliyun.openservices.log.Client;

public class Sample {

    public static void main(String[] args) throws Exception {
        // Specify a Simple Log Service endpoint. In this example, the Simple Log Service endpoint for the China (Hangzhou) region is used. Replace the parameter value with the actual endpoint.
        String endpoint = "cn-beijing.log.aliyuncs.com";
        // Obtain an AccessKey ID and an AccessKey secret from environment variables. 
        String accessKeyId = System.getenv("ALIBABA_CLOUD_ACCESS_KEY_ID");
        String accessKeySecret = System.getenv("ALIBABA_CLOUD_ACCESS_KEY_SECRET");
        Client client = new Client(endpoint, accessKeyId, accessKeySecret);
    }
}

package com.test.controller;

import com.aliyun.openservices.log.Client;

public class Sample {

    public static void main(String[] args) throws Exception {
        // Specify a Simple Log Service endpoint. In this example, the Simple Log Service endpoint for the China (Hangzhou) region is used. Replace the parameter value with the actual endpoint.
        String endpoint = "cn-beijing.log.aliyuncs.com";
        // In this example, obtain the value of the AccessKeyId parameter below the Credentials parameter that is returned by the AssumeRole operation. 
        String accessKeyId = System.getenv("ALIBABA_CLOUD_ACCESS_KEY_ID");
        // In this example, obtain the value of the AccessKeySecret parameter below the Credentials parameter that is returned by the AssumeRole operation. 
        String accessKeySecret = System.getenv("ALIBABA_CLOUD_ACCESS_KEY_SECRET");
        // In this example, obtain the value of the SecurityToken parameter below the Credentials parameter that is returned by the AssumeRole operation. 
        String securityToken = System.getenv("ALIBABA_CLOUD_STS_TOKEN");
        Client client = new Client(endpoint, accessKeyId, accessKeySecret);
        client.setSecurityToken(securityToken);
    }
}

References

• After you initialize a Client instance, you can call Simple Log Service SDK for Java to create a project and write logs. For more information, see Get started with Simple Log Service SDK for Java.