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A practical guide to quickly get started with Java and Huawei Cloud Log Service

Jul 07, 2023 pm 01:03 PM
java Huawei Cloud Log service

Practical Guide to Quickly Getting Started with Java and Huawei Cloud Log Service

Introduction:
As a widely used programming language, Java plays an important role in the field of cloud computing. Huawei Cloud Log Service provides developers with a reliable log storage and analysis platform to help users easily manage and analyze log data. This article will provide readers with a practical guide for using Java and Huawei Cloud Log Service to help readers quickly get started and store and analyze logs.

1. Preparation:

  1. Register a Huawei Cloud account and apply for the log service.
  2. Download and install the Java development environment and ensure that the Java environment variables are correctly configured.

2. Add dependencies:
Add the dependencies of Huawei Cloud SDK to the Java project to interact with Huawei Cloud Log Service. Add the following dependencies in the project's pom.xml (or build.gradle) file:

<dependency>
    <groupId>com.huawei.cloud</groupId>
    <artifactId>huaweicloud-sdk-java-log</artifactId>
    <version>1.0.0</version>
</dependency>
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3. Create a log service instance:
First, we need to create an instance of the log service for logging storage and management. The following is a sample code:

import com.huawei.log.service.LogService;
import com.huawei.log.common.LogInstance;
import com.huawei.log.entity.RegionEnum;

public class LogServiceExample {
    public static void main(String[] args) {
        // 设置华为云API的访问秘钥
        String ak = "YOUR_ACCESS_KEY";
        String sk = "YOUR_SECRET_KEY";

        // 设置日志服务的区域和项目ID
        RegionEnum region = RegionEnum.CN_NORTH_4;
        String projectId = "YOUR_PROJECT_ID";

        // 创建日志服务实例
        LogInstance logInstance = new LogInstance(ak, sk, region, projectId);

        // 使用日志服务实例进行日志的存储和管理
        LogService logService = new LogService(logInstance);

        // ...
    }
}
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4. Write log data:
After creating a log service instance, we can use the log service instance to write logs. The following is a sample code:

import com.huawei.log.entity.LogGroupEntity;
import com.huawei.log.entity.LogEntity;
import com.huawei.log.entity.LogItemEntity;

public class LogServiceExample {
    public static void main(String[] args) {
        // ...

        // 构建日志数据
        LogGroupEntity logGroup = new LogGroupEntity();
        logGroup.setTopic("example-topic");
        logGroup.setSource("example-source");
        
        LogEntity logEntity = new LogEntity();
        logEntity.setTime(System.currentTimeMillis());
        
        LogItemEntity logItemEntity = new LogItemEntity();
        logItemEntity.setKey("example-key");
        logItemEntity.setValue("example-value");
        logEntity.addLogItem(logItemEntity);

        logGroup.addLog(logEntity);

        // 写入日志数据
        String result = logService.putLogs(logGroup);

        // ...
    }
}
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5. Query log data:
In addition to writing log data, we can also use the log service instance to query log data. The following is a sample code:

import com.huawei.log.entity.QueryResultEntity;
import com.huawei.log.entity.QueryConditionEntity;

public class LogServiceExample {
    public static void main(String[] args) {
        // ...

        // 构建查询条件
        QueryConditionEntity queryCondition = new QueryConditionEntity();
        queryCondition.setQuery("example-query");
        queryCondition.setFrom(System.currentTimeMillis() - 3600*1000); // 查询一小时前的日志
        queryCondition.setTo(System.currentTimeMillis());

        // 查询日志数据
        QueryResultEntity queryResult = logService.queryLogs(queryCondition);

        // ...
    }
}
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Conclusion:
This article provides readers with a practical guide to quickly get started with Java and Huawei Cloud Log Service. By learning and running the sample code, readers can learn how to use Java and Huawei Cloud Log Service to store and analyze logs. I hope this article will help readers in using Java and Huawei Cloud Log Service.

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