{"id":11556,"date":"2024-03-15T07:25:51","date_gmt":"2024-03-14T22:25:51","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7https%e3%81%ae%e3%82%a4%e3%83%b3%e3%82%bf%e3%83%bc%e3%83%95%e3%82%a7%e3%83%bc%e3%82%b9%e3%82%92%e5%91%bc%e3%81%b3%e5%87%ba%e3%81%99%e6%96%b9%e6%b3%95%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99\/"},"modified":"2025-08-05T08:21:02","modified_gmt":"2025-08-04T23:21:02","slug":"java%e3%81%a7https%e3%81%ae%e3%82%a4%e3%83%b3%e3%82%bf%e3%83%bc%e3%83%95%e3%82%a7%e3%83%bc%e3%82%b9%e3%82%92%e5%91%bc%e3%81%b3%e5%87%ba%e3%81%99%e6%96%b9%e6%b3%95%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7https%e3%81%ae%e3%82%a4%e3%83%b3%e3%82%bf%e3%83%bc%e3%83%95%e3%82%a7%e3%83%bc%e3%82%b9%e3%82%92%e5%91%bc%e3%81%b3%e5%87%ba%e3%81%99%e6%96%b9%e6%b3%95%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99\/","title":{"rendered":"Java\u3067https\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u547c\u3073\u51fa\u3059\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f"},"content":{"rendered":"<p>HTTPS\u63a5\u53e3\u3092\u547c\u3073\u51fa\u3059\u306b\u306f\u3001Java\u306eHttpURLConnection\u307e\u305f\u306fHttpClient\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306fHttpURLConnection\u3092\u4f7f\u7528\u3057\u3066HTTPS\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u3092\u547c\u3073\u51fa\u3059\u4f8b\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> java.io.BufferedReader;\r\n<span class=\"hljs-keyword\">import<\/span> java.io.IOException;\r\n<span class=\"hljs-keyword\">import<\/span> java.io.InputStream;\r\n<span class=\"hljs-keyword\">import<\/span> java.io.InputStreamReader;\r\n<span class=\"hljs-keyword\">import<\/span> java.net.HttpURLConnection;\r\n<span class=\"hljs-keyword\">import<\/span> java.net.URL;\r\n\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">HttpsExample<\/span> {\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">main<\/span><span class=\"hljs-params\">(String[] args)<\/span> <span class=\"hljs-keyword\">throws<\/span> IOException {\r\n        <span class=\"hljs-comment\">\/\/ \u521b\u5efaURL\u5bf9\u8c61<\/span>\r\n        <span class=\"hljs-type\">URL<\/span> <span class=\"hljs-variable\">url<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">URL<\/span>(<span class=\"hljs-string\">\"https:\/\/api.example.com\/endpoint\"<\/span>);\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u6253\u5f00\u8fde\u63a5<\/span>\r\n        <span class=\"hljs-type\">HttpURLConnection<\/span> <span class=\"hljs-variable\">connection<\/span> <span class=\"hljs-operator\">=<\/span> (HttpURLConnection) url.openConnection();\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u8bbe\u7f6e\u8bf7\u6c42\u65b9\u6cd5\u4e3aGET<\/span>\r\n        connection.setRequestMethod(<span class=\"hljs-string\">\"GET\"<\/span>);\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u83b7\u53d6\u54cd\u5e94\u7801<\/span>\r\n        <span class=\"hljs-type\">int<\/span> <span class=\"hljs-variable\">responseCode<\/span> <span class=\"hljs-operator\">=<\/span> connection.getResponseCode();\r\n        System.out.println(<span class=\"hljs-string\">\"Response Code: \"<\/span> + responseCode);\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u8bfb\u53d6\u54cd\u5e94\u5185\u5bb9<\/span>\r\n        <span class=\"hljs-type\">InputStream<\/span> <span class=\"hljs-variable\">inputStream<\/span> <span class=\"hljs-operator\">=<\/span> connection.getInputStream();\r\n        <span class=\"hljs-type\">BufferedReader<\/span> <span class=\"hljs-variable\">reader<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">BufferedReader<\/span>(<span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">InputStreamReader<\/span>(inputStream));\r\n        String line;\r\n        <span class=\"hljs-type\">StringBuilder<\/span> <span class=\"hljs-variable\">response<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">StringBuilder<\/span>();\r\n        <span class=\"hljs-keyword\">while<\/span> ((line = reader.readLine()) != <span class=\"hljs-literal\">null<\/span>) {\r\n            response.append(line);\r\n        }\r\n        reader.close();\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u8f93\u51fa\u54cd\u5e94\u5185\u5bb9<\/span>\r\n        System.out.println(<span class=\"hljs-string\">\"Response Body: \"<\/span> + response.toString());\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u5173\u95ed\u8fde\u63a5<\/span>\r\n        connection.disconnect();\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>HTTPS\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u547c\u3073\u51fa\u3059\u305f\u3081\u306b\u3001HttpClient\u3092\u4f7f\u7528\u3057\u305f\u3044\u5834\u5408\u306f\u3001Apache HttpClient\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u4f9d\u5b58\u95a2\u4fc2\u3092Maven\u307e\u305f\u306fGradle\u306b\u8ffd\u52a0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u30e1\u30a4\u30d6\u30f3:<\/p>\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.apache.httpcomponents<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>httpclient<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">artifactId<\/span>&gt;<\/span>\r\n    <span class=\"hljs-tag\">&lt;<span class=\"hljs-name\">version<\/span>&gt;<\/span>4.5.13<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">version<\/span>&gt;<\/span>\r\n<span class=\"hljs-tag\">&lt;\/<span class=\"hljs-name\">dependency<\/span>&gt;<\/span>\r\n<\/code><\/pre>\n<p>Gradle:\u30b0\u30e9\u30c9\u30eb<\/p>\n<pre class=\"post-pre\"><code>implementation <span class=\"hljs-string\">'org.apache.httpcomponents:httpclient:4.5.13'<\/span>\r\n<\/code><\/pre>\n<p>HttpClient\u3092\u4f7f\u7528\u3057\u3066HTTPS\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u547c\u3073\u51fa\u3059\u4f8b\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> org.apache.http.HttpEntity;\r\n<span class=\"hljs-keyword\">import<\/span> org.apache.http.HttpResponse;\r\n<span class=\"hljs-keyword\">import<\/span> org.apache.http.client.HttpClient;\r\n<span class=\"hljs-keyword\">import<\/span> org.apache.http.client.methods.HttpGet;\r\n<span class=\"hljs-keyword\">import<\/span> org.apache.http.conn.ssl.NoopHostnameVerifier;\r\n<span class=\"hljs-keyword\">import<\/span> org.apache.http.conn.ssl.TrustSelfSignedStrategy;\r\n<span class=\"hljs-keyword\">import<\/span> org.apache.http.impl.client.CloseableHttpClient;\r\n<span class=\"hljs-keyword\">import<\/span> org.apache.http.impl.client.HttpClients;\r\n<span class=\"hljs-keyword\">import<\/span> org.apache.http.ssl.SSLContextBuilder;\r\n<span class=\"hljs-keyword\">import<\/span> org.apache.http.util.EntityUtils;\r\n\r\n<span class=\"hljs-keyword\">import<\/span> java.io.IOException;\r\n\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">HttpsExample<\/span> {\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">main<\/span><span class=\"hljs-params\">(String[] args)<\/span> <span class=\"hljs-keyword\">throws<\/span> IOException {\r\n        <span class=\"hljs-comment\">\/\/ \u521b\u5efaHttpClient\u5bf9\u8c61<\/span>\r\n        <span class=\"hljs-type\">CloseableHttpClient<\/span> <span class=\"hljs-variable\">httpClient<\/span> <span class=\"hljs-operator\">=<\/span> HttpClients.custom()\r\n                .setSSLContext(SSLContextBuilder.create().loadTrustMaterial(<span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">TrustSelfSignedStrategy<\/span>()).build())\r\n                .setSSLHostnameVerifier(<span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">NoopHostnameVerifier<\/span>())\r\n                .build();\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u521b\u5efaHttpGet\u8bf7\u6c42\u5bf9\u8c61<\/span>\r\n        <span class=\"hljs-type\">HttpGet<\/span> <span class=\"hljs-variable\">httpGet<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">HttpGet<\/span>(<span class=\"hljs-string\">\"https:\/\/api.example.com\/endpoint\"<\/span>);\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u53d1\u9001\u8bf7\u6c42\uff0c\u83b7\u53d6\u54cd\u5e94<\/span>\r\n        <span class=\"hljs-type\">HttpResponse<\/span> <span class=\"hljs-variable\">response<\/span> <span class=\"hljs-operator\">=<\/span> httpClient.execute(httpGet);\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u83b7\u53d6\u54cd\u5e94\u5185\u5bb9<\/span>\r\n        <span class=\"hljs-type\">HttpEntity<\/span> <span class=\"hljs-variable\">entity<\/span> <span class=\"hljs-operator\">=<\/span> response.getEntity();\r\n        <span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">responseBody<\/span> <span class=\"hljs-operator\">=<\/span> EntityUtils.toString(entity);\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u8f93\u51fa\u54cd\u5e94\u5185\u5bb9<\/span>\r\n        System.out.println(<span class=\"hljs-string\">\"Response Body: \"<\/span> + responseBody);\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u5173\u95edHttpClient<\/span>\r\n        httpClient.close();\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>\u81ea\u5206\u306e\u30cb\u30fc\u30ba\u306b\u5408\u308f\u305b\u3066\u3001\u5229\u7528\u3059\u308bHTTPS\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306e\u65b9\u6cd5\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u3088\u304f\u4f7f\u308f\u308c\u308b2\u3064\u306e\u65b9\u6cd5\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>HTTPS\u63a5\u53e3\u3092\u547c\u3073\u51fa\u3059\u306b\u306f\u3001Java\u306eHttpURLConnection\u307e\u305f\u306fHttpClient\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306fHttpURLConnection\u3092\u4f7f\u7528\u3057\u3066HTTPS\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u3092\u547c\u3073\u51fa\u3059\u4f8b\u3067\u3059\u3002 impor [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[26,61],"class_list":["post-11556","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-26","tag-61"],"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>Java\u3067https\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u547c\u3073\u51fa\u3059\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" 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