xxljob分片广播+多线程实现高效定时同步elasticsearch索引库

import com.xxl.job.core.handler.annotation.XxlJob;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.action.admin.indices.create.CreateIndexRequest;
import org.elasticsearch.action.admin.indices.create.CreateIndexResponse;
import org.elasticsearch.cluster.metadata.IndexMetadata;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
 
@Component
public class ElasticSearchIndexJobHandler {
 
    private static final String INDEX_TEMPLATE = "your_index_template_here";
 
    @Autowired
    private RestHighLevelClient client;
 
    @XxlJob("syncElasticSearchIndexJobHandler")
    public void syncElasticSearchIndexJobHandler() throws Exception {
        // 分片数和副本数的配置
        int numberOfShards = 5;
        int numberOfReplicas = 1;
 
        // 创建索引请求
        CreateIndexRequest request = new CreateIndexRequest(INDEX_TEMPLATE);
 
        // 设置索引的分片和副本
        request.settings(Settings.builder()
                .put("index.number_of_shards", numberOfShards)
                .put("index.number_of_replicas", numberOfReplicas));
 
        // 创建索引
        CreateIndexResponse response = client.indices().create(request, RequestOptions.DEFAULT);
 
        // 输出索引创建结果
        if (response.isAcknowledged()) {
            System.out.println("索引创建成功");
            // 进一步操作，比如广播索引创建成功的消息等
        } else {
            System.out.println("索引创建失败");
        }
    }
}

这段代码使用了@XxlJob注解来标记一个方法作为XXL-JOB的定时任务处理器。它会创建一个Elasticsearch索引，并设置分片和副本数。任务执行成功后，会输出相应的日志信息，并可以进行后续的广播操作。