Elasticsearch 文档Doucment API(7.5.0)
1. 创建文档
A. 插件：官网Index API
POST /索引名/_doc 或 PUT /索引名/_doc/自定义ID，注意索引不存在时会自动创建，_doc是路径部分固定值；
B. 代码：官网Index API
package com.ruhuanxingyun.doc; import org.apache.commons.lang3.time.DateFormatUtils; import org.apache.http.HttpHost; import org.elasticsearch.action.index.IndexRequest; import org.elasticsearch.action.index.IndexResponse; import org.elasticsearch.client.RequestOptions; import org.elasticsearch.client.RestClient; import org.elasticsearch.client.RestHighLevelClient; import org.elasticsearch.common.xcontent.XContentBuilder; import org.elasticsearch.common.xcontent.XContentFactory; import org.elasticsearch.rest.RestStatus; import java.io.IOException; import java.util.Date; /** * @description: 创建文档 * @author: ruphie * @date: Create in 2019/8/29 20:16 * @company: ruhuanxingyun */ public class createDoc { public static void main(String[] args) { IndexRequest request = new IndexRequest("nginx_20190832"); // 文档ID不设置会自动创建 //request.id("ESgd4GwBL_dFtmUfcPwC"); RestHighLevelClient client = null; try { XContentBuilder xContentBuilder = XContentFactory.jsonBuilder(); xContentBuilder.startObject() .timeField("@timestamp", DateFormatUtils.format(new Date(), "yyyy-MM-dd HH:mm:ss")) .field("mac", "00-11-22-33-44-55") .field("sn", "1234567890") .field("productType", "SUV3") .field("status", 200) .timeField("updateTime", DateFormatUtils.format(new Date(), "yyyy-MM-dd HH:mm:ss")) .endObject(); request.source(xContentBuilder); // 设置操作类型type就必须设置id，否则报错org.elasticsearch.action.ActionRequestValidationException: Validation Failed: 1: an id must be provided if version type or value are set; //request.opType(DocWriteRequest.OpType.CREATE);
// 项目中会采用注入属性获取 client = new RestHighLevelClient( RestClient.builder(new HttpHost("localhost", 9200, "http"))); IndexResponse response = client.index(request, RequestOptions.DEFAULT); if (response.status() == RestStatus.CREATED) { System.out.println(String.format("创建文档ID为%s成功!", request.id())); } else { System.out.println(String.format("创建文档ID为%s失败!", request.id())); } } catch (Exception e) { e.printStackTrace(); } finally { try { // 关闭资源 if (client != null) { client.close(); } } catch (IOException e) { e.printStackTrace(); } } } }
2. 获取文档
A. 插件：官网Get API
GET /索引名/_doc/文档ID
B. Java： 官网Get API
package com.ruhuanxingyun.doc; import org.apache.http.HttpHost; import org.elasticsearch.action.get.GetRequest; import org.elasticsearch.action.get.GetResponse; import org.elasticsearch.client.RequestOptions; import org.elasticsearch.client.RestClient; import org.elasticsearch.client.RestHighLevelClient; import java.io.IOException; import java.util.Map; /** * @description: 获取文档 * @author: rup * @date: Create in 2019/8/30 17:37 * @company: ruhuanxingyun */ public class getDoc { public static void main(String[] args) { GetRequest request = new GetRequest("nginx_20190832", "ESgd4GwBL_dFtmUfcPwA"); RestHighLevelClient client = null; try { client = new RestHighLevelClient( RestClient.builder(new HttpHost("localhost", 9200, "http"))); GetResponse response = client.get(request, RequestOptions.DEFAULT); if (response.isExists()) { Map<String, Object> map = response.getSource(); map.forEach((key, value) -> { System.out.println(String.format("字段名为%s，字段值为%s", key, value)); }); } } catch (IOException e) { e.printStackTrace(); } finally { try { // 关闭资源 if (client != null) { client.close(); } } catch (IOException e) { e.printStackTrace(); } } } }
3. 更新文档
A. 插件：官网Upate API
PUT /索引名/_doc/文档id 或 POST /<index>/_update/<_id>
B. 更新文档一部分字段
POST /<index>/_update/<_id> { "doc": { "user": { "ip": "127.0.0.1" } } }
C. Java：官网Update API
package com.ruhuanxingyun.doc; import org.apache.commons.lang3.time.DateFormatUtils; import org.apache.http.HttpHost; import org.elasticsearch.action.update.UpdateRequest; import org.elasticsearch.action.update.UpdateResponse; import org.elasticsearch.client.RequestOptions; import org.elasticsearch.client.RestClient; import org.elasticsearch.client.RestHighLevelClient; import org.elasticsearch.common.xcontent.XContentBuilder; import org.elasticsearch.common.xcontent.XContentFactory; import org.elasticsearch.rest.RestStatus; import java.io.IOException; import java.util.Date; /** * @description: 更新索引文档 * @author: rup * @date: Create in 2019/8/30 12:50 * @company: ruhuanxingyun */ public class updateDoc { public static void main(String[] args) { UpdateRequest request = new UpdateRequest("nginx_20190832", "ESgd4GwBL_dFtmUfcPwA"); RestHighLevelClient client = null; try { XContentBuilder xContentBuilder = XContentFactory.jsonBuilder(); xContentBuilder.startObject() .timeField("@timestamp", DateFormatUtils.format(new Date(), "yyyy-MM-dd HH:mm:ss")) .field("mac", "00-11-22-33-44-77") .field("sn", "1234567890123") .timeField("updateTime", DateFormatUtils.format(new Date(), "yyyy-MM-dd HH:mm:ss")) .endObject(); request.doc(xContentBuilder); client = new RestHighLevelClient( RestClient.builder(new HttpHost("localhost", 9200, "http"))); UpdateResponse response = client.update(request, RequestOptions.DEFAULT); if (response.status() == RestStatus.OK) { System.out.println(String.format("更新索引名为%s的文档id为%s成功!", response.getIndex(), response.getId())); } else { System.out.println(String.format("更新索引名为%s的文档id为%s失败!", response.getIndex(), response.getId())); } } catch (IOException e) { e.printStackTrace(); } finally { try { // 关闭资源 if (client != null) { client.close(); } } catch (IOException e) { e.printStackTrace(); } } } }
4. 删除文档
A. 插件：官网Delete API
DELETE /索引名/_doc/文档id
B. Java：官网Delete API
package com.ruhuanxingyun.indexDoc; import org.apache.http.HttpHost; import org.elasticsearch.action.DocWriteResponse; import org.elasticsearch.action.delete.DeleteRequest; import org.elasticsearch.action.delete.DeleteResponse; import org.elasticsearch.client.RequestOptions; import org.elasticsearch.client.RestClient; import org.elasticsearch.client.RestHighLevelClient; import java.io.IOException; /** * @description: 删除索引文档 * @author: rup * @date: Create in 2019/8/30 12:36 * @company: ruhuanxingyun */ public class NginxIndexDelete { public static void main(String[] args) { DeleteRequest request = new DeleteRequest("nginx_20190832", "Eyiy4GwBL_dFtmUfW_yE"); RestHighLevelClient client = null; try { client = new RestHighLevelClient( RestClient.builder(new HttpHost("localhost", 9200, "http"))); DeleteResponse response = client.delete(request, RequestOptions.DEFAULT); if (response.getResult() == DocWriteResponse.Result.DELETED) { System.out.println(String.format("删除索引名为%s的文档id为%s成功!", response.getIndex(), response.getId())); } else { System.out.println(String.format("删除索引名为%s的文档id为%s失败!", response.getIndex(), response.getId())); } } catch (IOException e) { e.printStackTrace(); } finally { try { // 关闭资源 if (client != null) { client.close(); } } catch (IOException e) { e.printStackTrace(); } } } }
5. 批量新增/修改/删除文档
A. shell脚本导入：curl -s -u elastic:123456 -XPOST "http://localhost:9200/ip/_bulk" -H 'Content-Type: application/json' --data-binary '@./rhxy.txt'
注意：书写文件时必须@开头
B. 插件：官网Bulk API
C. 代码：官网Bulk API
