elasticsearch学习

最新推荐文章于 2026-01-06 21:03:24 发布

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本文介绍如何使用Spring Boot配置Elasticsearch客户端，并通过REST API进行文档索引操作。示例代码展示了如何建立连接、创建RestHighLevelClient实例及发送请求到Elasticsearch服务器。

@Configuration
public class EsConfig {
    @Bean
    public RestHighLevelClient restHighLevelClient(){
        RestHighLevelClient client = new RestHighLevelClient(
                RestClient.builder(
                        new HttpHost("118.89.172.204", 9200, "http")));
        return client;
    }
}

@Controller
public class RestApiController {

    @Autowired
    private RestHighLevelClient client;

    @RequestMapping("/testRest")
    public String index() throws IOException {
        IndexRequest request = new IndexRequest(
                "posts",
                "doc",
                "1");
        String jsonString = "{" +
                "\"user\":\"kimchy\"," +
                "\"postDate\":\"2013-01-30\"," +
                "\"message\":\"trying out Elasticsearch\"" +
                "}";
        request.source(jsonString, XContentType.JSON);
        IndexResponse indexResponse = client.index(request, RequestOptions.DEFAULT);
        return "success";
    }
}