天行健，君子以自強(qiáng)不息；地勢坤，君子以厚德載物。

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每個(gè)人都有惰性，但不斷學(xué)習(xí)是好好生活的根本，共勉！

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文章均為學(xué)習(xí)整理筆記，分享記錄為主，如有錯(cuò)誤請(qǐng)指正，共同學(xué)習(xí)進(jìn)步。

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一、服務(wù)安裝參考

首先需要準(zhǔn)備好elasticsearch和kibana
elasticsearch的下載、安裝、使用可參考：Elasticsearch安裝
kibana的下載、安裝、使用可參考：Kibana安裝、配置
服務(wù)的啟動(dòng)使用和數(shù)據(jù)增刪改查可參考：kibana操作elasticsearch（增刪改查）
在進(jìn)行一下Java實(shí)現(xiàn)之前，先將es服務(wù)和kibana服務(wù)啟動(dòng)

二、Java實(shí)現(xiàn)新增數(shù)據(jù)到ES

Elasticsearch的服務(wù)開啟后，可以使用http請(qǐng)求進(jìn)行調(diào)用接口來操作Elasticsearch數(shù)據(jù)
請(qǐng)求的url格式如下：

http://localhost:9200/index/type/id

對(duì)于Java來說，可以使用http請(qǐng)求工具進(jìn)行實(shí)現(xiàn)，同時(shí)傳參，參數(shù)為json類型數(shù)據(jù)
具體實(shí)現(xiàn)如下

1. 環(huán)境

并非要求，只是我這里使用的這個(gè)環(huán)境
JDK 1.8
Maven 3.9.4
IDEA 2023.2.1

2. 包結(jié)構(gòu)

這里主要用到三個(gè)文件：pom引入依賴，HttpClientUtils是請(qǐng)求工具，EsHttpRequestController是請(qǐng)求調(diào)用測試

3. 依賴引入

引入http工具所需要的依賴，也就是實(shí)現(xiàn)請(qǐng)求的依賴
傳入的參數(shù)為json類型所以也需要json工具的依賴
pom.xml完整內(nèi)容

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>com.es</groupId><artifactId>ES-HTTP</artifactId><version>1.0-SNAPSHOT</version><properties><maven.compiler.source>8</maven.compiler.source><maven.compiler.target>8</maven.compiler.target><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding></properties><dependencies><!-- https://mvnrepository.com/artifact/org.apache.httpcomponents/httpcore --><dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpcore</artifactId><version>4.4.14</version></dependency><dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpclient</artifactId><version>4.5.13</version></dependency><!--json工具--><dependency><groupId>com.alibaba.fastjson2</groupId><artifactId>fastjson2</artifactId><version>2.0.33</version></dependency></dependencies></project>

4. http請(qǐng)求工具

HttpClientUtils.java

package com.es.utils;import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;/*** @ClassDescription:* @JdkVersion: 1.8* @Author: 李白* @Created: 2023/10/16 16:12*/
public class HttpClientUtils {public static void post(){}public static String doPost(String url, String str, String encoding) {String body = "";try {// 創(chuàng)建httpclient對(duì)象CloseableHttpClient client = HttpClients.createDefault();// 創(chuàng)建post方式請(qǐng)求對(duì)象HttpPost httpPost = new HttpPost(url);// 設(shè)置參數(shù)到請(qǐng)求對(duì)象中httpPost.setEntity(new StringEntity(str, encoding));// 設(shè)置header信息// 指定報(bào)文頭【Content-type】、【User-Agent】httpPost.setHeader("Content-type", "application/json;charset=UTF-8");// 執(zhí)行請(qǐng)求操作，并拿到結(jié)果（同步阻塞）CloseableHttpResponse response = client.execute(httpPost);// 獲取結(jié)果實(shí)體HttpEntity entity = response.getEntity();if (entity != null) {// 按指定編碼轉(zhuǎn)換結(jié)果實(shí)體為String類型body = EntityUtils.toString(entity, encoding);}EntityUtils.consume(entity);// 釋放鏈接response.close();return body;} catch (Exception e1) {e1.printStackTrace();return "";}}}

5. 測試代碼

編寫mian方法執(zhí)行請(qǐng)求存數(shù)據(jù)到es
EsHttoRequestController.java

package com.es.test;import com.alibaba.fastjson2.JSONObject;
import com.es.utils.HttpClientUtils;/*** @ClassDescription:* @JdkVersion: 1.8* @Author: 李白* @Created: 2023/10/16 16:12*/
public class EsHttpRequestController {public static void main(String[] args) {JSONObject js = new JSONObject();js.put("name","杜甫");js.put("age","6800");js.put("gender","男");String jsonStr = js.toJSONString();HttpClientUtils.doPost("http://127.0.0.1:9200/deviceinfo/users/1002",jsonStr,"UTF-8");}}

6. 訪問kibana服務(wù)

先看kibana服務(wù)查看數(shù)據(jù)
打開側(cè)邊欄，Analytics–Discover

查看現(xiàn)有數(shù)據(jù)

執(zhí)行5. 測試代碼的代碼，然后刷新界面查看新增數(shù)據(jù)
如下，新增成功

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感謝閱讀，祝君暴富！