{"id":17280,"date":"2024-03-16T06:22:42","date_gmt":"2024-03-15T21:22:42","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%81%ae%e5%ae%9a%e6%9c%9f%e7%9a%84%e3%81%aa%e3%83%a1%e3%83%bc%e3%83%ab%e9%80%81%e4%bf%a1%e6%a9%9f%e8%83%bd%e3%81%ae%e5%ae%9f%e8%a3%85%e6%96%b9%e6%b3%95%e3%81%af%e4%bd%95%e3%81%a7\/"},"modified":"2025-08-06T11:07:25","modified_gmt":"2025-08-06T02:07:25","slug":"java%e3%81%a7%e3%81%ae%e5%ae%9a%e6%9c%9f%e7%9a%84%e3%81%aa%e3%83%a1%e3%83%bc%e3%83%ab%e9%80%81%e4%bf%a1%e6%a9%9f%e8%83%bd%e3%81%ae%e5%ae%9f%e8%a3%85%e6%96%b9%e6%b3%95%e3%81%af%e4%bd%95%e3%81%a7","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%81%ae%e5%ae%9a%e6%9c%9f%e7%9a%84%e3%81%aa%e3%83%a1%e3%83%bc%e3%83%ab%e9%80%81%e4%bf%a1%e6%a9%9f%e8%83%bd%e3%81%ae%e5%ae%9f%e8%a3%85%e6%96%b9%e6%b3%95%e3%81%af%e4%bd%95%e3%81%a7\/","title":{"rendered":"Java\u3067\u306e\u5b9a\u671f\u7684\u306a\u30e1\u30fc\u30eb\u9001\u4fe1\u6a5f\u80fd\u306e\u5b9f\u88c5\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f"},"content":{"rendered":"<p>JavaMail API\u3092\u4f7f\u7528\u3057\u3066\u3001\u5b9a\u671f\u7684\u306b\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u6a5f\u80fd\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u7c21\u5358\u306a\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u3059\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> java.util.*;\r\n<span class=\"hljs-keyword\">import<\/span> javax.mail.*;\r\n<span class=\"hljs-keyword\">import<\/span> javax.mail.internet.*;\r\n\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">EmailScheduler<\/span> {\r\n    <span class=\"hljs-keyword\">private<\/span> Timer timer;\r\n\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-title function_\">EmailScheduler<\/span><span class=\"hljs-params\">()<\/span> {\r\n        timer = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">Timer<\/span>();\r\n    }\r\n\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">scheduleEmail<\/span><span class=\"hljs-params\">(String recipient, String subject, String message, Date date)<\/span> {\r\n        timer.schedule(<span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">TimerTask<\/span>() {\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_\">run<\/span><span class=\"hljs-params\">()<\/span> {\r\n                <span class=\"hljs-comment\">\/\/ \u53d1\u9001\u90ae\u4ef6<\/span>\r\n                sendEmail(recipient, subject, message);\r\n            }\r\n        }, date);\r\n    }\r\n\r\n    <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">sendEmail<\/span><span class=\"hljs-params\">(String recipient, String subject, String message)<\/span> {\r\n        <span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">sender<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-string\">\"your-email@example.com\"<\/span>; <span class=\"hljs-comment\">\/\/ \u53d1\u9001\u8005\u90ae\u7bb1<\/span>\r\n        <span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">password<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-string\">\"your-password\"<\/span>; <span class=\"hljs-comment\">\/\/ \u53d1\u9001\u8005\u90ae\u7bb1\u5bc6\u7801<\/span>\r\n\r\n        <span class=\"hljs-type\">Properties<\/span> <span class=\"hljs-variable\">props<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">Properties<\/span>();\r\n        props.setProperty(<span class=\"hljs-string\">\"mail.smtp.host\"<\/span>, <span class=\"hljs-string\">\"smtp.example.com\"<\/span>); <span class=\"hljs-comment\">\/\/ SMTP\u670d\u52a1\u5668\u5730\u5740<\/span>\r\n        props.setProperty(<span class=\"hljs-string\">\"mail.smtp.auth\"<\/span>, <span class=\"hljs-string\">\"true\"<\/span>);\r\n\r\n        <span class=\"hljs-type\">Session<\/span> <span class=\"hljs-variable\">session<\/span> <span class=\"hljs-operator\">=<\/span> Session.getInstance(props, <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">Authenticator<\/span>() {\r\n            <span class=\"hljs-meta\">@Override<\/span>\r\n            <span class=\"hljs-keyword\">protected<\/span> PasswordAuthentication <span class=\"hljs-title function_\">getPasswordAuthentication<\/span><span class=\"hljs-params\">()<\/span> {\r\n                <span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">PasswordAuthentication<\/span>(sender, password);\r\n            }\r\n        });\r\n\r\n        <span class=\"hljs-keyword\">try<\/span> {\r\n            <span class=\"hljs-comment\">\/\/ \u521b\u5efa\u90ae\u4ef6\u6d88\u606f<\/span>\r\n            <span class=\"hljs-type\">MimeMessage<\/span> <span class=\"hljs-variable\">mimeMessage<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">MimeMessage<\/span>(session);\r\n            mimeMessage.setFrom(<span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">InternetAddress<\/span>(sender));\r\n            mimeMessage.addRecipient(Message.RecipientType.TO, <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">InternetAddress<\/span>(recipient));\r\n            mimeMessage.setSubject(subject);\r\n            mimeMessage.setText(message);\r\n\r\n            <span class=\"hljs-comment\">\/\/ \u53d1\u9001\u90ae\u4ef6<\/span>\r\n            Transport.send(mimeMessage);\r\n            System.out.println(<span class=\"hljs-string\">\"\u90ae\u4ef6\u5df2\u53d1\u9001\"<\/span>);\r\n        } <span class=\"hljs-keyword\">catch<\/span> (MessagingException e) {\r\n            e.printStackTrace();\r\n        }\r\n    }\r\n\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> {\r\n        <span class=\"hljs-type\">EmailScheduler<\/span> <span class=\"hljs-variable\">scheduler<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">EmailScheduler<\/span>();\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u5728\u6307\u5b9a\u65e5\u671f\u65f6\u95f4\u53d1\u9001\u90ae\u4ef6<\/span>\r\n        <span class=\"hljs-type\">Calendar<\/span> <span class=\"hljs-variable\">calendar<\/span> <span class=\"hljs-operator\">=<\/span> Calendar.getInstance();\r\n        calendar.set(<span class=\"hljs-number\">2022<\/span>, Calendar.JANUARY, <span class=\"hljs-number\">1<\/span>, <span class=\"hljs-number\">10<\/span>, <span class=\"hljs-number\">0<\/span>, <span class=\"hljs-number\">0<\/span>);\r\n        <span class=\"hljs-type\">Date<\/span> <span class=\"hljs-variable\">date<\/span> <span class=\"hljs-operator\">=<\/span> calendar.getTime();\r\n        scheduler.scheduleEmail(<span class=\"hljs-string\">\"recipient@example.com\"<\/span>, <span class=\"hljs-string\">\"\u5b9a\u671f\u90ae\u4ef6\"<\/span>, <span class=\"hljs-string\">\"\u8fd9\u662f\u4e00\u5c01\u5b9a\u671f\u53d1\u9001\u7684\u90ae\u4ef6\"<\/span>, date);\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306f\u3001\u30e1\u30fc\u30eb\u3092\u5b9a\u671f\u7684\u306b\u9001\u4fe1\u3059\u308b\u305f\u3081\u306bjava.util.Timer\u30af\u30e9\u30b9\u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002scheduleEmail\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u9001\u4fe1\u3059\u308b\u30e1\u30fc\u30eb\u306e\u53d7\u4fe1\u8005\u3001\u4ef6\u540d\u3001\u5185\u5bb9\u3001\u9001\u4fe1\u65e5\u6642\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002sendEmail\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001JavaMail API\u3092\u4f7f\u7528\u3057\u3066\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002<\/p>\n<p>\u5b9f\u969b\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u60c5\u5831\u3068SMTP\u30b5\u30fc\u30d0\u30fc\u30a2\u30c9\u30ec\u30b9\u306b\u305d\u308c\u305e\u308c\u5dee\u3057\u66ff\u3048\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>JavaMail API\u3092\u4f7f\u7528\u3057\u3066\u3001\u5b9a\u671f\u7684\u306b\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3059\u308b\u6a5f\u80fd\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u7c21\u5358\u306a\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u3059\uff1a import java.util.*; import javax.mail.*; import  [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[26,61],"class_list":["post-17280","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\u3067\u306e\u5b9a\u671f\u7684\u306a\u30e1\u30fc\u30eb\u9001\u4fe1\u6a5f\u80fd\u306e\u5b9f\u88c5\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" 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