{"id":15428,"date":"2024-03-15T11:09:14","date_gmt":"2024-03-15T11:09:14","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-configure-a-spring-boot-application-to-work-with-an-elasticsearch-cluster\/"},"modified":"2025-08-06T18:31:55","modified_gmt":"2025-08-06T18:31:55","slug":"how-to-configure-a-spring-boot-application-to-work-with-an-elasticsearch-cluster","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-configure-a-spring-boot-application-to-work-with-an-elasticsearch-cluster\/","title":{"rendered":"How to configure a Spring Boot application to work with&#8230;"},"content":{"rendered":"<p>In order to integrate an Elasticsearch cluster into a Spring Boot project, you need to make the following configurations:<\/p>\n<ol>\n<li>pom.xml is a file used for configuring and managing dependencies in a Java project.<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">dependency<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">groupId<\/span>&gt;<\/span>org.springframework.boot<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">groupId<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">artifactId<\/span>&gt;<\/span>spring-boot-starter-data-elasticsearch<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">artifactId<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">dependency<\/span>&gt;<\/span>\r\n<\/code><\/pre>\n<ol>\n<li>properties file for an application<\/li>\n<li>config file used to store application settings and configurations<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-attr\">spring.elasticsearch.rest.uris<\/span>=<span class=\"hljs-string\">http:\/\/localhost:9200,http:\/\/localhost:9201,http:\/\/localhost:9202<\/span>\r\n<\/code><\/pre>\n<p>Alternatively, you can use YAML formatting for the configuration.<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-attr\">spring:<\/span>\r\n  <span class=\"hljs-attr\">elasticsearch:<\/span>\r\n    <span class=\"hljs-attr\">rest:<\/span>\r\n      <span class=\"hljs-attr\">uris:<\/span> <span class=\"hljs-string\">http:\/\/localhost:9200,http:\/\/localhost:9201,http:\/\/localhost:9202<\/span>\r\n<\/code><\/pre>\n<ol>\n<li>properties file for an application<\/li>\n<li>configuration file called application.yml<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-attr\">spring.elasticsearch.rest.max-connections<\/span>=<span class=\"hljs-string\">10<\/span>\r\n<span class=\"hljs-attr\">spring.elasticsearch.rest.max-per-route-connections<\/span>=<span class=\"hljs-string\">5<\/span>\r\n<\/code><\/pre>\n<p>Alternatively, use configuration in YAML format.<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-attr\">spring:<\/span>\r\n  <span class=\"hljs-attr\">elasticsearch:<\/span>\r\n    <span class=\"hljs-attr\">rest:<\/span>\r\n      <span class=\"hljs-attr\">max-connections:<\/span> <span class=\"hljs-number\">10<\/span>\r\n      <span class=\"hljs-attr\">max-per-route-connections:<\/span> <span class=\"hljs-number\">5<\/span>\r\n<\/code><\/pre>\n<ol>\n<li>Create a client for Elasticsearch: Create a RestHighLevelClient bean in the configuration class of Spring Boot to interact with Elasticsearch.<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> org.apache.http.HttpHost;\r\n<span class=\"hljs-keyword\">import<\/span> org.elasticsearch.client.RestClient;\r\n<span class=\"hljs-keyword\">import<\/span> org.elasticsearch.client.RestHighLevelClient;\r\n<span class=\"hljs-keyword\">import<\/span> org.springframework.context.annotation.Bean;\r\n<span class=\"hljs-keyword\">import<\/span> org.springframework.context.annotation.Configuration;\r\n\r\n<span class=\"hljs-meta\">@Configuration<\/span>\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">ElasticsearchConfig<\/span> {\r\n\r\n    <span class=\"hljs-meta\">@Bean<\/span>\r\n    <span class=\"hljs-keyword\">public<\/span> RestHighLevelClient <span class=\"hljs-title function_\">elasticsearchClient<\/span><span class=\"hljs-params\">()<\/span> {\r\n        <span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">RestHighLevelClient<\/span>(\r\n                RestClient.builder(\r\n                        <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">HttpHost<\/span>(<span class=\"hljs-string\">\"localhost\"<\/span>, <span class=\"hljs-number\">9200<\/span>, <span class=\"hljs-string\">\"http\"<\/span>),\r\n                        <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">HttpHost<\/span>(<span class=\"hljs-string\">\"localhost\"<\/span>, <span class=\"hljs-number\">9201<\/span>, <span class=\"hljs-string\">\"http\"<\/span>),\r\n                        <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">HttpHost<\/span>(<span class=\"hljs-string\">\"localhost\"<\/span>, <span class=\"hljs-number\">9202<\/span>, <span class=\"hljs-string\">\"http\"<\/span>)\r\n                )\r\n        );\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>Placing the above code in a class annotated with @Configuration will automatically register methods annotated with @Bean as beans in Spring Boot.<\/p>\n<p>These are the configuration steps for integrating an Elasticsearch cluster in a Spring Boot project. You can make adjustments and optimizations according to your actual needs.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In order to integrate an Elasticsearch cluster into a Spring Boot project, you need to make the following configurations: pom.xml is a file used for configuring and managing dependencies in a Java project. &lt;dependency&gt; &lt;groupId&gt;org.springframework.boot&lt;\/groupId&gt; &lt;artifactId&gt;spring-boot-starter-data-elasticsearch&lt;\/artifactId&gt; &lt;\/dependency&gt; properties file for an application config file used to store application settings and configurations spring.elasticsearch.rest.uris=http:\/\/localhost:9200,http:\/\/localhost:9201,http:\/\/localhost:9202 Alternatively, you can [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[453,1402,299,1404,1403],"class_list":["post-15428","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-development","tag-guide","tag-programming","tag-technology","tag-tutorial"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to configure a Spring Boot application to work with... - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn about how to configure a spring boot application to work with an elasticsearch cluster?. 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