"highlight": { "fields": { "name": { "require_field_match": "false" } } } 转Java里ES的RestClient
时间: 2023-07-19 12:42:59 浏览: 46
下面是将此查询语句转换为Java中使用ES RestClient的代码示例:
```java
import org.apache.http.HttpEntity;
import org.apache.http.HttpHost;
import org.apache.http.entity.ContentType;
import org.apache.http.nio.entity.NStringEntity;
import org.elasticsearch.client.Request;
import org.elasticsearch.client.Response;
import org.elasticsearch.client.RestClient;
import java.io.IOException;
public class ESQueryExample {
public static void main(String[] args) throws IOException {
RestClient restClient = RestClient.builder(
new HttpHost("localhost", 9200, "http")).build();
String jsonString = "{\n" +
" \"query\": {\n" +
" \"match_all\": {}\n" +
" },\n" +
" \"highlight\": {\n" +
" \"fields\": {\n" +
" \"name\": {\n" +
" \"require_field_match\": \"false\"\n" +
" }\n" +
" }\n" +
" }\n" +
"}";
HttpEntity entity = new NStringEntity(jsonString, ContentType.APPLICATION_JSON);
Request request = new Request("POST", "your_index/_search");
request.setEntity(entity);
Response response = restClient.performRequest(request);
System.out.println(response.getStatusLine().getStatusCode());
System.out.println(EntityUtils.toString(response.getEntity()));
restClient.close();
}
}
```
这个示例使用ES RestClient建立连接,创建查询字符串,构建一个HTTP实体,将其封装到请求中,并使用RestClient执行请求。您需要将`localhost`和`9200`替换为您的ES主机名和端口号,并将`your_index`替换为您的索引名称。