{"id":26162,"date":"2024-03-16T06:17:10","date_gmt":"2024-03-16T06:17:10","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-can-we-obtain-request-parameters-in-the-prehandle-method-of-spring-mvc\/"},"modified":"2024-03-22T07:55:06","modified_gmt":"2024-03-22T07:55:06","slug":"how-can-we-obtain-request-parameters-in-the-prehandle-method-of-spring-mvc","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-can-we-obtain-request-parameters-in-the-prehandle-method-of-spring-mvc\/","title":{"rendered":"How can we obtain request parameters in the preHandle method of Spring MVC?"},"content":{"rendered":"

In Spring MVC, there are several ways to access request parameters:<\/p>\n

    \n
  1. Obtain parameters using the HttpServletRequest object: Add the HttpServletRequest object as a parameter in the preHandle method and then retrieve the request parameters using its getXXX method. For example:<\/li>\n<\/ol>\n
    public<\/span> boolean<\/span> preHandle<\/span>(HttpServletRequest request, HttpServletResponse response, Object handler)<\/span> throws<\/span> Exception {\r\n    String<\/span> param1<\/span> =<\/span> request.getParameter(\"param1\"<\/span>);\r\n    String<\/span> param2<\/span> =<\/span> request.getParameter(\"param2\"<\/span>);\r\n    \/\/ \u5904\u7406\u53c2\u6570<\/span>\r\n    ...\r\n    return<\/span> true<\/span>;\r\n}\r\n<\/code><\/pre>\n
      \n
    1. The @RequestParam annotation is used to retrieve parameters, which can be directly bound to method parameters. For example:<\/li>\n<\/ol>\n
      public<\/span> boolean<\/span> preHandle<\/span>(@RequestParam(\"param1\")<\/span> String param1, @RequestParam(\"param2\")<\/span> String param2, HttpServletRequest request, HttpServletResponse response, Object handler)<\/span> throws<\/span> Exception {\r\n    \/\/ \u5904\u7406\u53c2\u6570<\/span>\r\n    ...\r\n    return<\/span> true<\/span>;\r\n}\r\n<\/code><\/pre>\n
        \n
      1. In order to retrieve path parameters, you can use the @PathVariable annotation. This is useful when dealing with RESTful requests.<\/li>\n<\/ol>\n
        public<\/span> boolean<\/span> preHandle<\/span>(@PathVariable(\"param1\")<\/span> String param1, @PathVariable(\"param2\")<\/span> String param2, HttpServletRequest request, HttpServletResponse response, Object handler)<\/span> throws<\/span> Exception {\r\n    \/\/ \u5904\u7406\u53c2\u6570<\/span>\r\n    ...\r\n    return<\/span> true<\/span>;\r\n}\r\n<\/code><\/pre>\n
        The above are several common ways to access request parameters. Choose the appropriate method based on specific needs to retrieve the parameters.<\/p>\n","protected":false},"excerpt":{"rendered":"
        In Spring MVC, there are several ways to access request parameters: Obtain parameters using the HttpServletRequest object: Add the HttpServletRequest object as a parameter in the preHandle method and then retrieve the request parameters using its getXXX method. For example: public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { String param1 = request.getParameter(“param1”); […]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-26162","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nHow can we obtain request parameters in the preHandle method of Spring MVC? - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/blog\/how-can-we-obtain-request-parameters-in-the-prehandle-method-of-spring-mvc\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How can we obtain request parameters in the preHandle method of Spring MVC?\" \/>\n<meta property=\"og:description\" content=\"In Spring MVC, there are several ways to access request parameters: Obtain parameters using the HttpServletRequest object: Add the HttpServletRequest object as a parameter in the preHandle method and then retrieve the request parameters using its getXXX method. For example: public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { String param1 = request.getParameter("param1"); […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/how-can-we-obtain-request-parameters-in-the-prehandle-method-of-spring-mvc\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-16T06:17:10+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-22T07:55:06+00:00\" \/>\n<meta name=\"author\" content=\"Liam\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:site\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Liam\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-can-we-obtain-request-parameters-in-the-prehandle-method-of-spring-mvc\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-can-we-obtain-request-parameters-in-the-prehandle-method-of-spring-mvc\/\"},\"author\":{\"name\":\"Liam\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/23786905eb7b377f45ddb01c17da7671\"},\"headline\":\"How can we obtain request parameters in the preHandle method of Spring MVC?\",\"datePublished\":\"2024-03-16T06:17:10+00:00\",\"dateModified\":\"2024-03-22T07:55:06+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-can-we-obtain-request-parameters-in-the-prehandle-method-of-spring-mvc\/\"},\"wordCount\":113,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-can-we-obtain-request-parameters-in-the-prehandle-method-of-spring-mvc\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/how-can-we-obtain-request-parameters-in-the-prehandle-method-of-spring-mvc\/\",\"name\":\"How can we obtain request parameters in the preHandle method of Spring MVC? 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