{"id":209,"date":"2023-01-23T23:33:58","date_gmt":"2023-01-23T14:33:58","guid":{"rendered":"https:\/\/hirabay.net\/?p=209"},"modified":"2023-01-23T23:39:32","modified_gmt":"2023-01-23T14:39:32","slug":"resttemplate%e3%81%a7nohttpresponseexception%e3%81%8c%e8%b5%b7%e3%81%8d%e3%81%9f%e3%81%ae%e3%81%a7%e3%81%84%e3%82%8d%e3%81%84%e3%82%8d%e8%aa%bf%e3%81%b9%e3%81%a6%e3%81%bf%e3%81%9f","status":"publish","type":"post","link":"https:\/\/hirabay.net\/?p=209","title":{"rendered":"RestTemplate\u3067NoHttpResponseException\u304c\u8d77\u304d\u305f\u306e\u3067\u3044\u308d\u3044\u308d\u8abf\u3079\u3066\u307f\u305f"},"content":{"rendered":"\n<p>RestTemplate\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067<br>NoHttpResponseException\u304c\u8d77\u304d\u305f\u306e\u3067\u3044\u308d\u3044\u308d\u8abf\u3079\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u7406\u89e3\u306e\u3057\u3084\u3059\u3055\u3092\u512a\u5148\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u6b63\u78ba\u3055\u306b\u304b\u3051\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3054\u5bb9\u8d66\u304f\u3060\u3055\u3044\ud83d\ude47\u200d\u2642\ufe0f<\/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\">\u7d50\u8ad6<\/a>\n  <\/li>\n  <li>\n    <a href=\"#i-1\">NoHttpResponseException\u3068\u306f\uff1f<\/a>\n  <\/li>\n  <li>\n    <a href=\"#i-2\">keep alive timeout\u3063\u3066\uff1f<\/a>\n  <\/li>\n  <li>\n    <a href=\"#i-3\">\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u3092\u518d\u5229\u7528\uff1f<\/a>\n  <\/li>\n  <li>\n    <a href=\"#i-4\">\u5207\u65ad\u3055\u308c\u305f\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u4f7f\u308f\u306a\u3044\u3067\u3088\u2026<\/a>\n  <\/li>\n  <li>\n    <a href=\"#i-5\">\u518d\u73fe\u3057\u3066\u307f\u305f<\/a>\n    <ul class=\"menu_level_1\">\n      <li class=\"first\">\n        <a href=\"#i-6\">nginx\u6e96\u5099<\/a>\n      <\/li>\n      <li>\n        <a href=\"#i-7\">Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/a>\n      <\/li>\n      <li class=\"last\">\n        <a href=\"#i-8\">\u3044\u3056\u518d\u73fe<\/a>\n      <\/li>\n    <\/ul>\n  <\/li>\n  <li class=\"last\">\n    <a href=\"#i-9\">\u3069\u3046\u3057\u305f\u3089\u9632\u3052\u308b\u306e\uff1f<\/a>\n  <\/li>\n<\/ul>\n\n      \n    <\/div><\/div><h2 class=\"wp-block-heading\" id=\"i-0\">\u7d50\u8ad6<\/h2>\n\n\n\n<p>\u5148\u306b\u7d50\u8ad6\u3067\u3059\u304c\u3001\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u306eTTL\u3092\u8a2d\u5b9a\u3057\u3001\u30b5\u30fc\u30d0\u5074\u306ekeep alive timeout\u5024\u3088\u308a\u3082\u77ed\u304f\u3057\u3066\u304a\u304d\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>CloseableHttpClient httpClient = HttpClients\n        .custom()\n        .setConnectionTimeToLive(3, TimeUnit.SECONDS) \/\/ TTL\u306e\u8a2d\u5b9a\n        .build();\nthis.restTemplate = new RestTemplateBuilder()\n        .requestFactory(() -&gt; new HttpComponentsClientHttpRequestFactory(httpClient))\n        .build();<\/code><\/pre><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-1\">NoHttpResponseException\u3068\u306f\uff1f<\/h2>\n\n\n\n<p>\u30b5\u30fc\u30d0\u3068\u306e\u901a\u4fe1\u3067\u3001\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u53d7\u3051\u53d6\u308c\u306a\u304b\u3063\u305f\u5834\u5408\u306b\u767a\u751f\u3059\u308b\u4f8b\u5916\u3067\u3059\u3002<br>\u4eca\u306e\u3068\u3053\u308dkeep alive timeout\u306b\u3088\u3063\u3066\u5207\u65ad\u3055\u308c\u305f\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u3092\u518d\u5229\u7528\u3057\u3066\u3057\u307e\u3063\u305f\u5834\u5408\u3067\u3057\u304b\u906d\u9047\u3057\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-2\">keep alive timeout\u3063\u3066\uff1f<\/h2>\n\n\n\n<p>\u901a\u5e38\u306fHTTP\u901a\u4fe1\u3092\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u90fd\u5ea6\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u30b5\u30fc\u30d0\u9593\u306e\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u306e\u63a5\u7d9a\u30fb\u5207\u65ad\u3092\u884c\u3046\u304c\u3001<br>keep alive\u3092\u4f7f\u7528\u3059\u308b\u3068\uff11\u3064\u306e\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u3067\u8907\u6570\u306eHTTP\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u308b\u3053\u3068\u304c\u3067\u304d\u308b<br>\u2192https\u901a\u4fe1\u6642\u306ehandshake\u3068\u304b\u3092\u6bce\u56de\u884c\u308f\u306a\u304f\u3066\u6e08\u3080\u306e\u3067\u52b9\u7387\u7684\ud83d\ude4c<\/p>\n\n\n\n<p>\u305f\u3060\u3001\u4f7f\u7528\u3057\u3066\u3044\u306a\u3044\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u3092\u63a5\u7d9a\u3057\u3063\u3071\u306a\u3057\u306b\u3057\u3066\u304a\u304f\u308f\u3051\u306b\u3082\u3044\u304b\u306a\u3044\u306e\u3067<br>\u4e00\u5b9a\u671f\u9593\u3092\u8a2d\u3051\u3066\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u3092\u5207\u65ad\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u300c\u4e00\u5b9a\u671f\u9593\u300d\u304ckeep alive timeout<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-3\">\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u3092\u518d\u5229\u7528\uff1f<\/h2>\n\n\n\n<p><code>RestTemplateBuilder<\/code>\u304b\u3089<code>RestTemplate<\/code>\u3092\u751f\u6210\u3057\u3066\u3044\u308b\u5834\u5408\u3001<br><code>PoolingHttpClientConnectionManager<\/code>\u3068\u3044\u3046\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3057\u3066HTTP\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u3092\u7ba1\u7406\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p><code>PoolingHttpClientConnectionManager<\/code>\u3067\u306f\u4e00\u5ea6\u4f7f\u7528\u3057\u305f\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u3092\u30d7\u30fc\u30ea\u30f3\u30b0\u3057\u3066\u304a\u304d\u3001\u6b21\u306bHTTP\u30ea\u30af\u30a8\u30b9\u30c8\u3059\u308b\u969b\u306b\u30d7\u30fc\u30ea\u30f3\u30b0\u3057\u305f\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u3092\u518d\u5229\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n<p><\/p><div class=\"memo \"><div class=\"memo_ttl dfont\"> \u88dc\u8db3<\/div>new RestTemplate()\u3057\u305f\u5834\u5408\u306f\u3001HTTP\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u5ea6\u306b\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u3092\u751f\u6210\u3057\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002<br>\n\u53c2\u8003\uff1aSimpleClientHttpRequestFactory<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-4\">\u5207\u65ad\u3055\u308c\u305f\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u4f7f\u308f\u306a\u3044\u3067\u3088\u2026<\/h2>\n\n\n\n<p>\u5b9f\u88c5\u3092\u898b\u3066\u307f\u307e\u3057\u305f\u304c\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3061\u3083\u3093\u3068\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u306e\u63a5\u7d9a\u72b6\u614b\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3066\u307e\u3057\u305f\uff01<\/p>\n\n\n\n<p>1.\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u3092\u30d7\u30fc\u30eb\u304b\u3089\u53d6\u5f97<\/p>\n\n\n<p><\/p><div class=\"linkcard\"><div class=\"lkc-external-wrap\"><a class=\"lkc-link no_icon\" href=\"https:\/\/github.com\/apache\/httpcomponents-client\/blob\/rel\/v4.5.13\/httpclient\/src\/main\/java\/org\/apache\/http\/impl\/execchain\/MainClientExec.java#L190\" target=\"_blank\" rel=\"external noopener\"><div class=\"lkc-card\"><div class=\"lkc-info\"><img loading=\"lazy\" decoding=\"async\" class=\"lkc-favicon\" src=\"https:\/\/www.google.com\/s2\/favicons?domain=github.com\" alt=\"\" width=\"16\" height=\"16\"><div class=\"lkc-domain\">GitHub<\/div><\/div><div class=\"lkc-content\"><figure class=\"lkc-thumbnail\"><img decoding=\"async\" class=\"lkc-thumbnail-img\" src=\"\/\/hirabay.net\/wp-content\/uploads\/pz-linkcard\/cache\/6af3cc2a8b2a01f3f0ce083c9b0d607ab7dc307b4722e2f0d59e2e1ae7d7e823.jpeg\" alt=\"\"><\/figure><div class=\"lkc-title\"><div class=\"lkc-title-text\">httpcomponents-client\/MainClientExec.java at rel\/v4.5.13 \u00b7 apache\/httpcompone\u2026<\/div><\/div><div class=\"lkc-url\">https:\/\/github.com\/apache\/httpcomponents-client\/blob\/rel\/v4.5.13\/httpclient\/src\/main\/java\/org\/apache\/http\/impl\/execchain\/MainClientExec.java#L190<\/div><div class=\"lkc-excerpt\">Mirror of Apache HttpClient. Contribute to apache\/httpcomponents-client development by creating an account on GitHub.<\/div><\/div><div class=\"clear\"><\/div><\/div><\/a><\/div><\/div>\n\n\n\n<p>2.\u63a5\u7d9a\u72b6\u614b\u3092\u78ba\u8a8d<\/p>\n\n\n<p><\/p><div class=\"linkcard\"><div class=\"lkc-external-wrap\"><a class=\"lkc-link no_icon\" href=\"https:\/\/github.com\/apache\/httpcomponents-client\/blob\/rel\/v4.5.13\/httpclient\/src\/main\/java\/org\/apache\/http\/impl\/execchain\/MainClientExec.java#L233\" target=\"_blank\" rel=\"external noopener\"><div class=\"lkc-card\"><div class=\"lkc-info\"><img loading=\"lazy\" decoding=\"async\" class=\"lkc-favicon\" src=\"https:\/\/www.google.com\/s2\/favicons?domain=github.com\" alt=\"\" width=\"16\" height=\"16\"><div class=\"lkc-domain\">GitHub<\/div><\/div><div class=\"lkc-content\"><figure class=\"lkc-thumbnail\"><img decoding=\"async\" class=\"lkc-thumbnail-img\" src=\"\/\/hirabay.net\/wp-content\/uploads\/pz-linkcard\/cache\/6af3cc2a8b2a01f3f0ce083c9b0d607ab7dc307b4722e2f0d59e2e1ae7d7e823.jpeg\" alt=\"\"><\/figure><div class=\"lkc-title\"><div class=\"lkc-title-text\">httpcomponents-client\/MainClientExec.java at rel\/v4.5.13 \u00b7 apache\/httpcompone\u2026<\/div><\/div><div class=\"lkc-url\">https:\/\/github.com\/apache\/httpcomponents-client\/blob\/rel\/v4.5.13\/httpclient\/src\/main\/java\/org\/apache\/http\/impl\/execchain\/MainClientExec.java#L233<\/div><div class=\"lkc-excerpt\">Mirror of Apache HttpClient. Contribute to apache\/httpcomponents-client development by creating an account on GitHub.<\/div><\/div><div class=\"clear\"><\/div><\/div><\/a><\/div><\/div>\n\n\n\n<p>3.HTTP\u30ea\u30af\u30a8\u30b9\u30c8<\/p>\n\n\n<p><\/p><div class=\"linkcard\"><div class=\"lkc-external-wrap\"><a class=\"lkc-link no_icon\" href=\"https:\/\/github.com\/apache\/httpcomponents-client\/blob\/rel\/v4.5.13\/httpclient\/src\/main\/java\/org\/apache\/http\/impl\/execchain\/MainClientExec.java#L272\" target=\"_blank\" rel=\"external noopener\"><div class=\"lkc-card\"><div class=\"lkc-info\"><img loading=\"lazy\" decoding=\"async\" class=\"lkc-favicon\" src=\"https:\/\/www.google.com\/s2\/favicons?domain=github.com\" alt=\"\" width=\"16\" height=\"16\"><div class=\"lkc-domain\">GitHub<\/div><\/div><div class=\"lkc-content\"><figure class=\"lkc-thumbnail\"><img decoding=\"async\" class=\"lkc-thumbnail-img\" src=\"\/\/hirabay.net\/wp-content\/uploads\/pz-linkcard\/cache\/6af3cc2a8b2a01f3f0ce083c9b0d607ab7dc307b4722e2f0d59e2e1ae7d7e823.jpeg\" alt=\"\"><\/figure><div class=\"lkc-title\"><div class=\"lkc-title-text\">httpcomponents-client\/MainClientExec.java at rel\/v4.5.13 \u00b7 apache\/httpcompone\u2026<\/div><\/div><div class=\"lkc-url\">https:\/\/github.com\/apache\/httpcomponents-client\/blob\/rel\/v4.5.13\/httpclient\/src\/main\/java\/org\/apache\/http\/impl\/execchain\/MainClientExec.java#L272<\/div><div class=\"lkc-excerpt\">Mirror of Apache HttpClient. Contribute to apache\/httpcomponents-client development by creating an account on GitHub.<\/div><\/div><div class=\"clear\"><\/div><\/div><\/a><\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-5\">\u518d\u73fe\u3057\u3066\u307f\u305f<\/h2>\n\n\n\n<p>keep alive timeout\u3092\u77ed\u3081\u306b\u8a2d\u5b9a\u3057\u305fnginx\u3068\u3001RestTemplate\u3092\u4f7f\u7528\u3057\u305fWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u7528\u610f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-6\">nginx\u6e96\u5099<\/h3>\n\n\n\n<p>\u69cb\u7bc9\u306e\u65b9\u6cd5\u81ea\u4f53\u306f\u7701\u7565\u3055\u305b\u3066\u3044\u305f\u3060\u304d\u307e\u3059\u304c\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306anginx.conf\u3092\u7528\u610f\u3057\u3001\u8d77\u52d5\u3057\u307e\u3057\u305f\uff01<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-plain\" data-file=\"nginx.conf\"><code>worker_processes  1;\n\nerror_log  \/var\/log\/nginx\/error.log warn;\npid        \/var\/run\/nginx.pid;\n\n\nevents {\n    worker_connections  1024;\n}\n\n\nhttp {\n    include       \/etc\/nginx\/mime.types;\n    default_type  application\/octet-stream;\n\n    log_format  main  '$remote_addr - $remote_user [$time_local] \"$request\" '\n                      '$status $body_bytes_sent \"$http_referer\" '\n                      '\"$http_user_agent\" \"$http_x_forwarded_for\"';\n\n    access_log  \/var\/log\/nginx\/access.log  main;\n\n    sendfile        on;\n\n    keepalive_timeout  5;\n\n    server {\n        listen       80;\n        listen  [::]:80;\n        server_name  localhost;\n\n        location \/ {\n            root   \/usr\/share\/nginx\/html;\n        }\n    }\n}<\/code><\/pre><\/div>\n\n\n\n<p><code>keepalive_timeout 5<\/code>\u3068\u3057\u3066\u3044\u308b\u306e\u3067\u30015\u79d2\u9593\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u6765\u306a\u304b\u3063\u305f\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u3092\u5207\u65ad\u3059\u308b\u8a2d\u5b9a\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<br>\u4eca\u56de\u306f<code>\/usr\/share\/nginx\/html<\/code>\u914d\u4e0b\u306b\u3001\u4ee5\u4e0b\u306estatus.html\u3092\u914d\u7f6e\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-html\" data-file=\"status.html\" data-lang=\"HTML\"><code>ok<\/code><\/pre><\/div>\n\n\n\n<p>\u52d5\u4f5c\u78ba\u8a8d<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-bash\" data-lang=\"Bash\"><code>$ curl http:\/\/localhost:80\/status.html\nok<\/code><\/pre><\/div>\n\n\n\n<p>\u3053\u308c\u3067nginx\u306e\u6e96\u5099\u306fOK\uff01<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-7\">Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/h3>\n\n\n\n<p>nginx\u3092\u53e9\u3044\u3066\u3001\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u305d\u306e\u307e\u307e\u8fd4\u3059\u3060\u3051\u306e\u30b7\u30f3\u30d7\u30eb\u306a\u4f5c\u308a\u306b\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/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    private RestTemplate restTemplate;\n\n    public SampleController() {\n        this.restTemplate = new RestTemplateBuilder()\n                .build();\n    }\n\n    @GetMapping(\"\/\")\n    public ResponseEntity&lt;String&gt; test() {\n        return restTemplate.getForEntity(\"http:\/\/localhost:80\/status.html\", String.class);\n    }\n}<\/code><\/pre><\/div>\n\n\n\n<p>\u8d77\u52d5\u3057\u3066\u53e9\u3044\u3066\u307f\u307e\u3059<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-bash\" data-lang=\"Bash\"><code>$ curl http:\/\/localhost:8080\/\nok<\/code><\/pre><\/div>\n\n\n\n<p>\u3053\u308c\u3067\u6e96\u5099OK\uff01<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-8\">\u3044\u3056\u518d\u73fe<\/h3>\n\n\n\n<p>\u30c7\u30d0\u30c3\u30af\u306e\u30d6\u30ec\u30fc\u30af\u30dd\u30a4\u30f3\u30c8\u3092\u5229\u7528\u3057\u3066\u3001\u610f\u56f3\u7684\u306b\u300c\u63a5\u7d9a\u72b6\u614b\u3092\u78ba\u8a8d\u300d\u3068\u300cHTTP\u30ea\u30af\u30a8\u30b9\u30c8\u300d\u306e\u9593\u9694\u3092\u4f38\u3070\u3057\u3066\u3001<br>\u524d\u56de\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u304b\u30895\u79d2\u4ee5\u4e0a\u7d4c\u3063\u3066\u304b\u3089nginx\u306b\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u308b\u3088\u3046\u306b\u3057\u307e\u3059<\/p>\n\n\n\n<p>\u30d6\u30ec\u30fc\u30af\u30dd\u30a4\u30f3\u30c8\u306f\u3001\u300c\u63a5\u7d9a\u72b6\u614b\u3092\u78ba\u8a8d\u300d\u300cHTTP\u30ea\u30af\u30a8\u30b9\u30c8\u300d\u305d\u308c\u305e\u308c\u306e\u30b3\u30fc\u30c9\u306e\u7b87\u6240\u3067\u305b\u3063\u3066\u3057\u3066\u304a\u3051\u3070OK\u3067\u3059\uff01<\/p>\n\n\n\n<p>1\u56de\u76ee<br>\u30d6\u30ec\u30fc\u30af\u30dd\u30a4\u30f3\u30c8\u3067\u6b62\u307e\u3063\u3066\u3082\u3059\u3050\u306b\u5f8c\u7d9a\u3092\u5b9f\u884c\uff08Resume\uff09\u3057\u307e\u3059<\/p>\n\n\n\n<p>2\u56de\u76ee<br>\u9593\u3092\u958b\u3051\u305a\u306b2\u56de\u76ee\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u308a\u307e\u3059<br>1\u3064\u76ee\u306e\u300c\u63a5\u7d9a\u72b6\u614b\u3092\u78ba\u8a8d\u300d\u306f\u3059\u3050\u306b\u5f8c\u7d9a\u3092\u5b9f\u884c\u3067OK<br>2\u3064\u76ee\u306e\u300cHTTP\u30ea\u30af\u30a8\u30b9\u30c8\u300d\u306e\u30d6\u30ec\u30fc\u30af\u30dd\u30a4\u30f3\u30c8\u30675\u79d2\u4ee5\u4e0a\u5f85\u3061\u307e\u3059<br>Step over\u3092\u5b9f\u884c\u3059\u308b\u3068IOException\u306ecatch\u53e5\u306b\u3072\u3063\u304b\u304b\u3063\u3066\u308b\uff01<\/p>\n\n\n\n<p>\u5185\u5bb9\u3092\u898b\u3066\u3044\u308b\u3068\u3001\u3001\u3001<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-plain\"><code>org.apache.http.NoHttpResponseException: The target server failed to respond<\/code><\/pre><\/div>\n\n\n\n<p>\u3084\u3084\u5f37\u5f15\u3067\u3059\u304c\u3001\u5b9f\u969b\u306b<code>NoHttpResponseException<\/code>\u3092\u518d\u73fe\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\ud83d\ude4c<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-9\">\u3069\u3046\u3057\u305f\u3089\u9632\u3052\u308b\u306e\uff1f<\/h2>\n\n\n\n<p><code>setConnectionTimeToLive<\/code>\u3067<code>connTimeToLive<\/code>\u3092\u6307\u5b9a\u3059\u308c\u3070OK\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    private RestTemplate restTemplate;\n\n    public SampleController() {\n        CloseableHttpClient httpClient = HttpClients\n                .custom()\n                \/\/ 3\u79d2\u9593\u4f7f\u7528\u3055\u308c\u306a\u304b\u3063\u305f\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u3092\u3001\u30d7\u30fc\u30eb\u304b\u3089\u53d6\u5f97\u3059\u308b\u3068\u304d\u306b\u518d\u63a5\u7d9a\u3059\u308b\n                .setConnectionTimeToLive(3, TimeUnit.SECONDS)\n                .build();\n        this.restTemplate = new RestTemplateBuilder()\n                .requestFactory(() -&gt; new HttpComponentsClientHttpRequestFactory(httpClient))\n                .build();\n    }\n\n    @GetMapping(\"\/\")\n    public ResponseEntity&lt;String&gt; test() {\n        return restTemplate.getForEntity(\"http:\/\/localhost:80\/status.html\", String.class);\n    }\n}<\/code><\/pre><\/div>\n\n\n\n<p>\u3053\u306e\u8a2d\u5b9a\u304c\u3042\u308b\u3068<code>PoolEntry<\/code>\uff08\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u3092\u62bd\u8c61\u5316\u3057\u305f\u3082\u306e\u3068\u6349\u3048\u3066\u3082\u3089\u3048\u308c\u3070\u826f\u3044\u306f\u305a\uff09\u3092\u751f\u6210\u3059\u308b\u3068\u304d\u306b\u3001<code>\u73fe\u5728\u6642\u523b + timeToLive<\/code>\u3067\u6709\u52b9\u671f\u9650\u304c\u8a2d\u5b9a\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\uff01<br>\u203b\u30c7\u30d5\u30a9\u30eb\u30c8\u306f\u7121\u671f\u9650<\/p>\n","protected":false},"excerpt":{"rendered":"<p>RestTemplate\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067NoHttpResponseException\u304c\u8d77\u304d\u305f\u306e\u3067\u3044\u308d\u3044\u308d\u8abf\u3079\u3066\u307f\u307e\u3057\u305f\u3002 \u7406\u89e3\u306e\u3057\u3084\u3059\u3055\u3092\u512a\u5148\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u6b63\u78ba\u3055\u306b\u304b\u3051\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3054\u5bb9\u8d66\u304f\u3060\u3055\u3044\ud83d\ude47 &#8230; <\/p>\n","protected":false},"author":1,"featured_media":210,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[47,46,13],"class_list":{"0":"post-209","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-6","8":"tag-keep-alive","9":"tag-resttemplate","10":"tag-springboot"},"jetpack_featured_media_url":"https:\/\/hirabay.net\/wp-content\/uploads\/2023\/01\/3d4cf80c31626820f0d27f4fe8ccfb07.png","_links":{"self":[{"href":"https:\/\/hirabay.net\/index.php?rest_route=\/wp\/v2\/posts\/209","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=209"}],"version-history":[{"count":3,"href":"https:\/\/hirabay.net\/index.php?rest_route=\/wp\/v2\/posts\/209\/revisions"}],"predecessor-version":[{"id":213,"href":"https:\/\/hirabay.net\/index.php?rest_route=\/wp\/v2\/posts\/209\/revisions\/213"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hirabay.net\/index.php?rest_route=\/wp\/v2\/media\/210"}],"wp:attachment":[{"href":"https:\/\/hirabay.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=209"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hirabay.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=209"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hirabay.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=209"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}