{"id":442,"date":"2023-02-10T13:15:02","date_gmt":"2023-02-10T04:15:02","guid":{"rendered":"https:\/\/hirabay.net\/?p=442"},"modified":"2023-02-10T13:15:06","modified_gmt":"2023-02-10T04:15:06","slug":"handlermethodargumentresolver%e3%81%a7%e4%bb%bb%e6%84%8f%e3%81%ae%e3%82%af%e3%83%a9%e3%82%b9%e3%82%92controller%e3%81%a7%e5%8f%97%e3%81%91%e5%8f%96%e3%82%8b","status":"publish","type":"post","link":"https:\/\/hirabay.net\/?p=442","title":{"rendered":"HandlerMethodArgumentResolver\u3067\u4efb\u610f\u306e\u30af\u30e9\u30b9\u3092Controller\u3067\u53d7\u3051\u53d6\u308b"},"content":{"rendered":"\n<p>Controller\u3067<code>HttpServletRequest<\/code>\u3092\u5f15\u6570\u306b\u8a2d\u5b9a\u3059\u308b\u3068\u306a\u3093\u3067\u3082\u3067\u304d\u307e\u3059\u304c\u3001\u540c\u3058\u3088\u3046\u306a\u3053\u3068\u3092\u3044\u308d\u3093\u306aContorller\u3067\u3084\u3063\u3066\u3044\u305f\u3089\u30b3\u30fc\u30c9\u304c\u91cd\u8907\u3057\u3066\u7121\u99c4\u3067\u3059\u3088\u306d\u2026<\/p>\n\n\n\n<p>\u4f8b\u3048\u3070\u3053\u3093\u306a\u611f\u3058\uff08\u3053\u306e\u30ec\u30d9\u30eb\u3060\u3068<code>@RequestHeader<\/code>\u4f7f\u304a\u3046\u3067\u6e08\u3080\u3093\u3067\u3059\u3051\u3069\u306dw\uff09<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-java\" data-lang=\"Java\"><code>    @GetMapping(\"\/sample\/plain\")\n    public String plain(HttpServletRequest request) {\n        return request.getHeader(\"key\");\n    }<\/code><\/pre><\/div>\n\n\n\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001<code>HandlerMethodArgumentResolver<\/code>\u3092\u4f7f\u7528\u3057\u3066\u3001Controller\u306e\u5f15\u6570\u3067\u4efb\u610f\u306e\u30af\u30e9\u30b9\u3092\u53d7\u3051\u53d6\u308b\u3053\u3068\u3067\u89e3\u6c7a\u3059\u308b\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\uff01<\/p>\n\n\n\n<div class=\"toc\"><br \/>\n<b>Warning<\/b>:  Undefined array key \"is_admin\" in <b>\/home\/c4179872\/public_html\/hirabay.net\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>110<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_category_top\" in <b>\/home\/c4179872\/public_html\/hirabay.net\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>115<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_top\" in <b>\/home\/c4179872\/public_html\/hirabay.net\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>122<\/b><br \/>\n    <div id=\"toc_container\" class=\"sgb-toc--bullets js-smooth-scroll\">\n      <p class=\"toc_title\">\u76ee\u6b21 <\/p>\n      <ul class=\"toc_list\">\n  <li class=\"first\">\n    <a href=\"#i-0\">\u4efb\u610f\u30af\u30e9\u30b9\u306e\u4f5c\u6210<\/a>\n  <\/li>\n  <li>\n    <a href=\"#i-1\">\u3010\u672c\u984c\u3011HandlerMethodArgumentResolver<\/a>\n    <ul class=\"menu_level_1\">\n      <li class=\"first\">\n        <a href=\"#i-2\">supportsParameter<\/a>\n      <\/li>\n      <li class=\"last\">\n        <a href=\"#i-3\">resolveArgument<\/a>\n      <\/li>\n    <\/ul>\n  <\/li>\n  <li>\n    <a href=\"#i-4\">WebMvcConfigurer<\/a>\n  <\/li>\n  <li class=\"last\">\n    <a href=\"#i-5\">\u52d5\u304b\u3057\u3066\u307f\u308b<\/a>\n  <\/li>\n<\/ul>\n\n      \n    <\/div><\/div><h2 class=\"wp-block-heading\" id=\"i-0\">\u4efb\u610f\u30af\u30e9\u30b9\u306e\u4f5c\u6210<\/h2>\n\n\n\n<p>\u307e\u305a\u306f\u3001Controller\u306e\u5f15\u6570\u3067\u53d7\u3051\u3068\u308b\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-java\" data-lang=\"Java\"><code>@Value\npublic class SampleModel {\n    private String key;\n}<\/code><\/pre><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-1\">\u3010\u672c\u984c\u3011HandlerMethodArgumentResolver<\/h2>\n\n\n\n<p>\u672c\u984c\u306e\u4efb\u610f\u306e\u30af\u30e9\u30b9\u306b\u5024\u3092\u30d0\u30a4\u30f3\u30c9\u3059\u308b\u30af\u30e9\u30b9\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-java\" data-lang=\"Java\"><code>public class SampleArgumentResolver implements HandlerMethodArgumentResolver {\n    \/\/ Controller(RestController)\u306e\u5f15\u6570\u3054\u3068\u306b\u5b9f\u884c\u3055\u308c\u308b\n    \/\/ \u3053\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u623b\u308a\u5024\u304ctrue\u306e\u5834\u5408\u3060\u3051\u3001resolveArgument\u304c\u5b9f\u884c\u3055\u308c\u308b\n    @Override\n    public boolean supportsParameter(MethodParameter parameter) {\n        return parameter.getParameterType().equals(SampleModel.class);\n    }\n\n    \/\/ \u5f15\u6570\u3092\u89e3\u6c7a\u3059\u308b\u30e1\u30a4\u30f3\u30e1\u30bd\u30c3\u30c9\n    @Override\n    public Object resolveArgument(\n            MethodParameter parameter,\n            ModelAndViewContainer mavContainer,\n            NativeWebRequest webRequest,\n            WebDataBinderFactory binderFactory\n    ) throws Exception {\n        var name = webRequest.getHeader(\"key\");\n        \/\/ \u5f15\u6570\u3067\u53d7\u3051\u53d6\u308a\u305f\u3044\u30af\u30e9\u30b9\u3092\u8fd4\u3059\n        return new SampleModel(name);\n    }\n}<\/code><\/pre><\/div>\n\n\n\n<p>\u30e1\u30bd\u30c3\u30c9\u3054\u3068\u306b\u3082\u3046\u5c11\u3057\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">supportsParameter<\/h3>\n\n\n\n<p>\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u3001Controller\u306e\u5b9f\u884c\u3054\u3068Controller\u306e\u5f15\u6570\u3054\u3068\u306b\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u304ctrue\u3092\u8fd4\u3059\u5834\u5408\u306b\u306e\u307f<code>resolveArgument<\/code>\u304c\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4e00\u756a\u30e1\u30b8\u30e3\u30fc\u306a\u4f7f\u3044\u65b9\u3068\u3057\u3066\u306f\u3001\u5f15\u6570\u306e\u30af\u30e9\u30b9\u306b\u5fdc\u3058\u3066true \/ false\u3092\u8fd4\u5374\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3082\u3046\u5c11\u3057\u7d30\u304b\u304f\u3084\u308d\u3046\u3068\u3057\u305f\u3089<br>\u30fb\u5f15\u6570\u306e\u540d\u524d\uff1a<code>parameter.getParameter().getName()<\/code><br>\u30fb\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\uff1a<code>parameter.getParameterAnnotation(&lt;\u30af\u30e9\u30b9&gt;.class)<\/code><br>\u3068\u304b\u304c\u4f7f\u3048\u305d\u3046\u3067\u3059\uff01<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-3\">resolveArgument<\/h3>\n\n\n\n<p>\u3053\u306e\u30af\u30e9\u30b9\u3067\u5f15\u6570\u306b\u53d7\u3051\u53d6\u308a\u305f\u3044\u30af\u30e9\u30b9\u3092\u8fd4\u3059\u3088\u3046\u306b\u5b9f\u88c5\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p><code>HttpServletRequest<\/code>\u306b\u5bfe\u5fdc\u3059\u308b\u30af\u30e9\u30b9\u304c<code>NativeWebRequest<\/code>\u3067\u3001header\u3084\u30d1\u30e9\u30e1\u30fc\u30bf\u7b49HTTP\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u95a2\u3059\u308b\u60c5\u5831\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-4\">WebMvcConfigurer<\/h2>\n\n\n\n<p>\u5148\u307b\u3069\u4f5c\u6210\u3057\u305f<code>HandlerMethodArgumentResolver<\/code>\u3067\u3059\u304c\u3001\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3057\u305f\u3060\u3051\u3067\u306fSpring\u306b\u8a8d\u8b58\u3092\u3057\u3066\u3082\u3089\u3048\u306a\u3044\u306e\u3067\u3001<code>WebMvcConfigurer<\/code>\u3092\u5b9f\u88c5\u3057\u305f\u30af\u30e9\u30b9\u3067\u5b58\u5728\u3092\u6559\u3048\u3066\u3042\u3052\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-java\" data-lang=\"Java\"><code>@Configuration\npublic class HandlerMethodArgumentResolverConfiguration implements WebMvcConfigurer {\n    \/\/ \u5b9f\u88c5\u3057\u305fresolver\u3092\u767b\u9332\u3059\u308b\n    @Override\n    public void addArgumentResolvers(List&lt;HandlerMethodArgumentResolver&gt; argumentResolvers) {\n        argumentResolvers.add(new SampleArgumentResolver());\n    }\n}<\/code><\/pre><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-5\">\u52d5\u304b\u3057\u3066\u307f\u308b<\/h2>\n\n\n\n<p>\u3053\u308c\u3067\u3001\u4efb\u610f\u306e\u30af\u30e9\u30b9\uff08\u3053\u3053\u3067\u306f<code>SampleModel<\/code>\uff09\u3092\u53d7\u3051\u53d6\u308b\u6e96\u5099\u304c\u3067\u304d\u305f\u306e\u3067\u3001\u52d5\u304b\u3057\u3066\u307f\u307e\u3057\u3087\u3046\uff01<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-java\" data-lang=\"Java\"><code>@RestController\npublic class SampleController {\n    @GetMapping(\"\/sample\")\n    public String resolver(\n            SampleModel sampleModel\n    ) {\n        return sampleModel.getKey();\n    }\n}<\/code><\/pre><\/div>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-bash\" data-lang=\"Bash\"><code>$ curl -H 'key: value' 'localhost:8080\/sample\/resolver'\nvalue<\/code><\/pre><\/div>\n\n\n\n<p>\ud83c\udf89\ud83c\udf89\ud83c\udf89\ud83c\udf89<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Controller\u3067HttpServletRequest\u3092\u5f15\u6570\u306b\u8a2d\u5b9a\u3059\u308b\u3068\u306a\u3093\u3067\u3082\u3067\u304d\u307e\u3059\u304c\u3001\u540c\u3058\u3088\u3046\u306a\u3053\u3068\u3092\u3044\u308d\u3093\u306aContorller\u3067\u3084\u3063\u3066\u3044\u305f\u3089\u30b3\u30fc\u30c9\u304c\u91cd\u8907\u3057\u3066\u7121\u99c4\u3067\u3059\u3088\u306d\u2026 \u4f8b\u3048\u3070\u3053\u3093\u306a\u611f\u3058\uff08\u3053\u306e\u30ec\u30d9\u30eb\u3060\u3068@ &#8230; <\/p>\n","protected":false},"author":1,"featured_media":443,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[76,75,13],"class_list":{"0":"post-442","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-6","8":"tag-mvc","9":"tag-spring-web","10":"tag-springboot"},"jetpack_featured_media_url":"https:\/\/hirabay.net\/wp-content\/uploads\/2023\/02\/Gradle.png","_links":{"self":[{"href":"https:\/\/hirabay.net\/index.php?rest_route=\/wp\/v2\/posts\/442","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hirabay.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hirabay.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hirabay.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hirabay.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=442"}],"version-history":[{"count":1,"href":"https:\/\/hirabay.net\/index.php?rest_route=\/wp\/v2\/posts\/442\/revisions"}],"predecessor-version":[{"id":444,"href":"https:\/\/hirabay.net\/index.php?rest_route=\/wp\/v2\/posts\/442\/revisions\/444"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hirabay.net\/index.php?rest_route=\/wp\/v2\/media\/443"}],"wp:attachment":[{"href":"https:\/\/hirabay.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=442"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hirabay.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=442"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hirabay.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=442"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}