{"id":125318,"date":"2024-03-24T18:35:54","date_gmt":"2024-03-24T09:35:54","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%a6%e7%94%bb%e5%83%8f%e3%83%87%e3%83%bc%e3%82%bf%e3%83%99%e3%83%bc%e3%82%b9%e3%81%ab%e4%bf%9d%e5%ad%98%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/"},"modified":"2024-03-28T02:55:40","modified_gmt":"2024-03-27T17:55:40","slug":"java%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%a6%e7%94%bb%e5%83%8f%e3%83%87%e3%83%bc%e3%82%bf%e3%83%99%e3%83%bc%e3%82%b9%e3%81%ab%e4%bf%9d%e5%ad%98%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%a6%e7%94%bb%e5%83%8f%e3%83%87%e3%83%bc%e3%82%bf%e3%83%99%e3%83%bc%e3%82%b9%e3%81%ab%e4%bf%9d%e5%ad%98%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/","title":{"rendered":"Java\u3092\u4f7f\u7528\u3057\u3066\u753b\u50cf\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4fdd\u5b58\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"

Java\u3067\u753b\u50cf\u3092\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4fdd\u5b58\u3059\u308b\u306b\u306f\u3044\u304f\u3064\u304b\u306e\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u3053\u3053\u3067\u306f\u4e00\u822c\u7684\u306a\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u30021. \u753b\u50cf\u3092\u30d0\u30a4\u30c8\u914d\u5217\u306b\u5909\u63db\u3057\u307e\u3059\u3002“`javaFile imageFile = new File(“path\/to\/image.jpg”);byte[] imageData = Files.readAllBytes(imageFile.toPath());“`2. \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u63a5\u7d9a\u3057\u3066\u3001\u753b\u50cf\u3092\u683c\u7d0d\u3059\u308b\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002“`javaConnection conn = DriverManager.getConnection(“jdbc:mysql:\/\/localhost:3306\/db_name”, “username”, “password”);Statement stmt = conn.createStatement();stmt.executeUpdate(“CREATE TABLE images (id INT AUTO_INCREMENT PRIMARY KEY, name VARCHAR(50), data LONGBLOB)”);“`3. \u30d0\u30a4\u30c8\u914d\u5217\u3092\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4fdd\u5b58\u3057\u307e\u3059\u3002“`javaPreparedStatement pstmt = conn.prepareStatement(“INSERT INTO images (name, data) VALUES (?, ?)”);pstmt.setString(1, “image.jpg”);pstmt.setBytes(2, imageData);pstmt.executeUpdate();“`4. \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304b\u3089\u753b\u50cf\u3092\u8aad\u307f\u53d6\u3063\u3066\u4fdd\u5b58\u3057\u307e\u3059\u3002“`javaResultSet rs = stmt.executeQuery(“SELECT * FROM images WHERE id = 1”);if (rs.next()) {
\nString imageName = rs.getString(“name”);
\nbyte[] imageData = rs.getBytes(“data”);
\nFileOutputStream fos = new FileOutputStream(“path\/to\/save\/” + imageName);
\nfos.write(imageData);
\nfos.close();}“`\u203b\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u306f\u4e00\u4f8b\u3067\u3042\u308a\u3001\u5b9f\u969b\u306e\u5229\u7528\u6642\u306b\u306f\u3001\u4f7f\u7528\u3059\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3084\u30c6\u30fc\u30d6\u30eb\u69cb\u6210\u306b\u5408\u308f\u305b\u3066\u8abf\u6574\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

Java\u3067\u753b\u50cf\u3092\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4fdd\u5b58\u3059\u308b\u306b\u306f\u3044\u304f\u3064\u304b\u306e\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u3053\u3053\u3067\u306f\u4e00\u822c\u7684\u306a\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u30021. \u753b\u50cf\u3092\u30d0\u30a4\u30c8\u914d\u5217\u306b\u5909\u63db\u3057\u307e\u3059\u3002“`javaFile imageFile = new File(&# […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-125318","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nJava\u3092\u4f7f\u7528\u3057\u3066\u753b\u50cf\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4fdd\u5b58\u3059\u308b\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\u3092\u4f7f\u7528\u3057\u3066\u753b\u50cf\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4fdd\u5b58\u3059\u308b\u65b9\u6cd5\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java\u3092\u4f7f\u7528\u3057\u3066\u753b\u50cf\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4fdd\u5b58\u3059\u308b\u65b9\u6cd5\" \/>\n<meta property=\"og:description\" content=\"Java\u3067\u753b\u50cf\u3092\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4fdd\u5b58\u3059\u308b\u306b\u306f\u3044\u304f\u3064\u304b\u306e\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u3053\u3053\u3067\u306f\u4e00\u822c\u7684\u306a\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u30021. \u753b\u50cf\u3092\u30d0\u30a4\u30c8\u914d\u5217\u306b\u5909\u63db\u3057\u307e\u3059\u3002“`javaFile imageFile = new File(&# […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/java\u3092\u4f7f\u7528\u3057\u3066\u753b\u50cf\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4fdd\u5b58\u3059\u308b\u65b9\u6cd5\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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