{"id":15385,"date":"2024-03-15T11:05:04","date_gmt":"2024-03-15T11:05:04","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-create-a-spring-boot-interceptor\/"},"modified":"2025-08-06T18:09:44","modified_gmt":"2025-08-06T18:09:44","slug":"how-to-create-a-spring-boot-interceptor","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-create-a-spring-boot-interceptor\/","title":{"rendered":"How to create a Spring Boot interceptor"},"content":{"rendered":"<p>To create a Spring Boot interceptor, you need to follow these steps:<\/p>\n<ol>\n<li>An interceptor for handling requests.<\/li>\n<li>\nBefore handling the request<\/li>\n<li>manage()<\/li>\n<li>onceFinished()<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> org.springframework.web.servlet.HandlerInterceptor;\r\n<span class=\"hljs-keyword\">import<\/span> org.springframework.web.servlet.ModelAndView;\r\n\r\n<span class=\"hljs-keyword\">import<\/span> javax.servlet.http.HttpServletRequest;\r\n<span class=\"hljs-keyword\">import<\/span> javax.servlet.http.HttpServletResponse;\r\n\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">CustomInterceptor<\/span> <span class=\"hljs-keyword\">implements<\/span> <span class=\"hljs-title class_\">HandlerInterceptor<\/span> {\r\n\r\n    <span class=\"hljs-meta\">@Override<\/span>\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-type\">boolean<\/span> <span class=\"hljs-title function_\">preHandle<\/span><span class=\"hljs-params\">(HttpServletRequest request, HttpServletResponse response, Object handler)<\/span> <span class=\"hljs-keyword\">throws<\/span> Exception {\r\n        <span class=\"hljs-comment\">\/\/ \u5728\u8bf7\u6c42\u5904\u7406\u4e4b\u524d\u8fdb\u884c\u8c03\u7528\uff08Controller\u65b9\u6cd5\u8c03\u7528\u4e4b\u524d\uff09<\/span>\r\n        <span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-literal\">true<\/span>; <span class=\"hljs-comment\">\/\/ \u5982\u679c\u8fd4\u56defalse\uff0c\u5219\u8bf7\u6c42\u4e2d\u65ad<\/span>\r\n    }\r\n\r\n    <span class=\"hljs-meta\">@Override<\/span>\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">postHandle<\/span><span class=\"hljs-params\">(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView)<\/span> <span class=\"hljs-keyword\">throws<\/span> Exception {\r\n        <span class=\"hljs-comment\">\/\/ \u8bf7\u6c42\u5904\u7406\u4e4b\u540e\u8fdb\u884c\u8c03\u7528\uff0c\u4f46\u662f\u5728\u89c6\u56fe\u88ab\u6e32\u67d3\u4e4b\u524d\uff08Controller\u65b9\u6cd5\u8c03\u7528\u4e4b\u540e\uff09<\/span>\r\n    }\r\n\r\n    <span class=\"hljs-meta\">@Override<\/span>\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">afterCompletion<\/span><span class=\"hljs-params\">(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)<\/span> <span class=\"hljs-keyword\">throws<\/span> Exception {\r\n        <span class=\"hljs-comment\">\/\/ \u5728\u6574\u4e2a\u8bf7\u6c42\u7ed3\u675f\u4e4b\u540e\u88ab\u8c03\u7528\uff0c\u4e5f\u5c31\u662f\u5728DispatcherServlet\u6e32\u67d3\u4e86\u5bf9\u5e94\u7684\u89c6\u56fe\u4e4b\u540e\u6267\u884c\uff08\u4e3b\u8981\u662f\u7528\u4e8e\u8fdb\u884c\u8d44\u6e90\u6e05\u7406\u5de5\u4f5c\uff09<\/span>\r\n    }\r\n\r\n}\r\n<\/code><\/pre>\n<ol>\n<li>Configurable web MVC adapter<\/li>\n<li>include interceptors<\/li>\n<li>Set up or configuration<\/li>\n<li>Activate WebMvc<\/li>\n<li>Override the following<\/li>\n<li>includeInterceptors()<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> org.springframework.context.annotation.Configuration;\r\n<span class=\"hljs-keyword\">import<\/span> org.springframework.web.servlet.config.annotation.InterceptorRegistry;\r\n<span class=\"hljs-keyword\">import<\/span> org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;\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_\">WebMvcConfig<\/span> <span class=\"hljs-keyword\">extends<\/span> <span class=\"hljs-title class_\">WebMvcConfigurerAdapter<\/span> {\r\n\r\n    <span class=\"hljs-meta\">@Override<\/span>\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">addInterceptors<\/span><span class=\"hljs-params\">(InterceptorRegistry registry)<\/span> {\r\n        registry.addInterceptor(<span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">CustomInterceptor<\/span>()).addPathPatterns(<span class=\"hljs-string\">\"\/**\"<\/span>);\r\n        <span class=\"hljs-comment\">\/\/ \u6dfb\u52a0\u81ea\u5b9a\u4e49\u62e6\u622a\u5668\uff0c\u5e76\u8bbe\u7f6e\u62e6\u622a\u8def\u5f84\uff0c\u8fd9\u91cc\u8bbe\u7f6e\u62e6\u622a\u6240\u6709\u8bf7\u6c42<\/span>\r\n    }\r\n\r\n}\r\n<\/code><\/pre>\n<p>In this way, you have created a simple Spring Boot interceptor. When a request enters the application, the interceptor&#8217;s preHandle() method is called, and then decides whether to interrupt the request based on the return value; after the request is processed, the interceptor&#8217;s postHandle() method is called, executed before view rendering; finally, after the entire request is completed, the interceptor&#8217;s afterCompletion() method is called for resource cleanup.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>To create a Spring Boot interceptor, you need to follow these steps: An interceptor for handling requests. Before handling the request manage() onceFinished() import org.springframework.web.servlet.HandlerInterceptor; import org.springframework.web.servlet.ModelAndView; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class CustomInterceptor implements HandlerInterceptor { @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { \/\/ \u5728\u8bf7\u6c42\u5904\u7406\u4e4b\u524d\u8fdb\u884c\u8c03\u7528\uff08Controller\u65b9\u6cd5\u8c03\u7528\u4e4b\u524d\uff09 return true; \/\/ \u5982\u679c\u8fd4\u56defalse\uff0c\u5219\u8bf7\u6c42\u4e2d\u65ad [&hellip;]<\/p>\n","protected":false},"author":7,"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-15385","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 create a Spring Boot interceptor - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn about how to create a spring boot interceptor. 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