{"id":102698,"date":"2024-03-22T05:47:09","date_gmt":"2024-03-21T20:47:09","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7udp%e9%80%81%e4%bf%a1%e3%83%97%e3%83%ad%e3%82%b0%e3%83%a9%e3%83%a0%e3%82%92%e6%9b%b8%e3%81%8f%e6%96%b9%e6%b3%95\/"},"modified":"2024-04-05T14:41:11","modified_gmt":"2024-04-05T05:41:11","slug":"java%e3%81%a7udp%e9%80%81%e4%bf%a1%e3%83%97%e3%83%ad%e3%82%b0%e3%83%a9%e3%83%a0%e3%82%92%e6%9b%b8%e3%81%8f%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7udp%e9%80%81%e4%bf%a1%e3%83%97%e3%83%ad%e3%82%b0%e3%83%a9%e3%83%a0%e3%82%92%e6%9b%b8%e3%81%8f%e6%96%b9%e6%b3%95\/","title":{"rendered":"java\u3067UDP\u9001\u4fe1\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u304f\u65b9\u6cd5"},"content":{"rendered":"

Java \u88fd UDP \u9001\u4fe1\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f7f\u3046\u306b\u306f\u6b21\u306e\u624b\u9806\u306b\u5f93\u3044\u307e\u3059\u3002<\/p>\n

    \n
  1. \u30c7\u30fc\u30bf\u30b0\u30e9\u30e0\u306e\u9001\u53d7\u4fe1\u306e\u305f\u3081\u306bDatagramSocket\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u3002<\/li>\n
  2. \u5b9b\u5148\u30db\u30b9\u30c8\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u6307\u5b9a\u3057\u3066InetAddress\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/li>\n
  3. \u9001\u4fe1\u3059\u308b\u30c7\u30fc\u30bf\u3068\u5b9b\u5148\u30db\u30b9\u30c8\u306e\u30a2\u30c9\u30ec\u30b9\u60c5\u5831\u3092\u683c\u7d0d\u3059\u308bDatagramPacket\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/li>\n
  4. \u30c7\u30fc\u30bf\u30b0\u30e9\u30e0\u3092\u9001\u4fe1\u3059\u308b\u306b\u306f\u3001DatagramSocket \u306e send() \u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/li>\n
  5. DatagramSocket \u3092\u9589\u3058\u308b<\/li>\n<\/ol>\n

    \u4ee5\u4e0b\u306b\u7c21\u5358\u306a\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u793a\u3057\u307e\u3059\uff1a<\/p>\n

    import<\/span> java.io.IOException;\r\nimport<\/span> java.net.*;\r\n\r\npublic<\/span> class<\/span> UDPSender<\/span> {\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(String[] args)<\/span> {\r\n        String<\/span> message<\/span> =<\/span> \"Hello, UDP Receiver!\"<\/span>;\r\n        int<\/span> port<\/span> =<\/span> 12345<\/span>;\r\n        \r\n        try<\/span> {\r\n            \/\/ \u521b\u5efaDatagramSocket<\/span>\r\n            DatagramSocket<\/span> socket<\/span> =<\/span> new<\/span> DatagramSocket<\/span>();\r\n            \r\n            \/\/ \u521b\u5efa\u76ee\u6807\u4e3b\u673a\u7684InetAddress\u5bf9\u8c61<\/span>\r\n            InetAddress<\/span> address<\/span> =<\/span> InetAddress.getByName(\"192.168.0.100\"<\/span>);\r\n            \r\n            \/\/ \u521b\u5efa\u8981\u53d1\u9001\u7684\u6570\u636e\u62a5<\/span>\r\n            byte<\/span>[] data = message.getBytes();\r\n            DatagramPacket<\/span> packet<\/span> =<\/span> new<\/span> DatagramPacket<\/span>(data, data.length, address, port);\r\n            \r\n            \/\/ \u53d1\u9001\u6570\u636e\u62a5<\/span>\r\n            socket.send(packet);\r\n            \r\n            \/\/ \u5173\u95edDatagramSocket<\/span>\r\n            socket.close();\r\n            \r\n            System.out.println(\"UDP message sent successfully.\"<\/span>);\r\n        } catch<\/span> (IOException e) {\r\n            e.printStackTrace();\r\n        }\r\n    }\r\n}\r\n<\/code><\/pre>\n
    \u6307\u5b9a\u3055\u308c\u305fIP\u30a2\u30c9\u30ec\u30b9\u3068\u30dd\u30fc\u30c8\u306b\u6587\u5b57\u5217\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5b9f\u884c\u3059\u308b\u306b\u306f\u3001\u5b9b\u5148\u306e\u30db\u30b9\u30c8\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u5b9f\u969b\u306eIP\u30a2\u30c9\u30ec\u30b9\u306b\u7f6e\u304d\u63db\u3048\u3001\u63a5\u7d9a\u5148\u30db\u30b9\u30c8\u306e\u305d\u306e\u30dd\u30fc\u30c8\u3092\u76e3\u8996\u3059\u308bUDP\u53d7\u4fe1\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    Java \u88fd UDP \u9001\u4fe1\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f7f\u3046\u306b\u306f\u6b21\u306e\u624b\u9806\u306b\u5f93\u3044\u307e\u3059\u3002 \u30c7\u30fc\u30bf\u30b0\u30e9\u30e0\u306e\u9001\u53d7\u4fe1\u306e\u305f\u3081\u306bDatagramSocket\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u3002 \u5b9b\u5148\u30db\u30b9\u30c8\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u6307\u5b9a\u3057\u3066InetAddress\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092 […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-102698","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\njava\u3067UDP\u9001\u4fe1\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u304f\u65b9\u6cd5 - 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\/ja\/blog\/java\u3067udp\u9001\u4fe1\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u304f\u65b9\u6cd5\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"java\u3067UDP\u9001\u4fe1\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u304f\u65b9\u6cd5\" \/>\n<meta property=\"og:description\" content=\"Java \u88fd UDP \u9001\u4fe1\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f7f\u3046\u306b\u306f\u6b21\u306e\u624b\u9806\u306b\u5f93\u3044\u307e\u3059\u3002 \u30c7\u30fc\u30bf\u30b0\u30e9\u30e0\u306e\u9001\u53d7\u4fe1\u306e\u305f\u3081\u306bDatagramSocket\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u3002 \u5b9b\u5148\u30db\u30b9\u30c8\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u6307\u5b9a\u3057\u3066InetAddress\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/java\u3067udp\u9001\u4fe1\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u304f\u65b9\u6cd5\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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