{"id":90685,"date":"2024-03-21T12:51:24","date_gmt":"2024-03-21T03:51:24","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%82%a2%e3%83%83%e3%83%97%e3%83%ad%e3%83%bc%e3%83%89%e3%81%95%e3%82%8c%e3%81%9f%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%82%92%e3%83%87%e3%83%bc%e3%82%bf%e3%83%99%e3%83%bc%e3%82%b9\/"},"modified":"2024-03-28T10:23:17","modified_gmt":"2024-03-28T01:23:17","slug":"java%e3%81%a7%e3%82%a2%e3%83%83%e3%83%97%e3%83%ad%e3%83%bc%e3%83%89%e3%81%95%e3%82%8c%e3%81%9f%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%82%92%e3%83%87%e3%83%bc%e3%82%bf%e3%83%99%e3%83%bc%e3%82%b9","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%82%a2%e3%83%83%e3%83%97%e3%83%ad%e3%83%bc%e3%83%89%e3%81%95%e3%82%8c%e3%81%9f%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%82%92%e3%83%87%e3%83%bc%e3%82%bf%e3%83%99%e3%83%bc%e3%82%b9\/","title":{"rendered":"Java\u3067\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u3092\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4fdd\u5b58\u3059\u308b"},"content":{"rendered":"<p>Java 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\u30d5\u30a1\u30a4\u30eb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u30d5\u30a9\u30fc\u30e0\u306e\u4f5c\u6210: \u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u30da\u30fc\u30b8\u306b\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3059\u308b\u30d5\u30a1\u30a4\u30eb\u3092\u9078\u629e\u3059\u308b\u305f\u3081\u306e\u30d5\u30a1\u30a4\u30eb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u30d5\u30a9\u30fc\u30e0\u3092\u4f5c\u6210\u3057\u307e\u3059\u30024. \u30d5\u30a1\u30a4\u30eb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u51e6\u7406: \u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u30b3\u30fc\u30c9\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u51e6\u7406\u3057\u3001\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u3092\u53d6\u5f97\u3057\u307e\u3059\u30025. \u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9\u3092\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4fdd\u5b58\u3059\u308b: \u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9\u3092\u524d\u306b\u4f5c\u6210\u3057\u305f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30c6\u30fc\u30d6\u30eb\u306b\u4fdd\u5b58\u3057\u307e\u3059\u3002\u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9\u3092\u4fdd\u5b58\u3059\u308b\u306b\u306f BLOB \u578b\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u7c21\u5358\u306a\u30b3\u30fc\u30c9\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\">\/\/\u00a0\u521b\u5efa\u6570\u636e\u5e93\u8fde\u63a5\r\nConnection\u00a0conn\u00a0=\u00a0DriverManager.getConnection(\"jdbc:mysql:\/\/localhost:3306\/db_name\",\u00a0\"username\",\u00a0\r\n\"password\");\r\n\/\/\u00a0\u5904\u7406\u6587\u4ef6\u4e0a\u4f20\u8bf7\u6c42\r\nPart\u00a0filePart\u00a0=\u00a0request.getPart(\"file\");\u00a0\/\/\u00a0\u83b7\u53d6\u4e0a\u4f20\u7684\u6587\u4ef6\r\nString\u00a0fileName\u00a0=\u00a0filePart.getSubmittedFileName();\u00a0\/\/\u00a0\u83b7\u53d6\u6587\u4ef6\u540d\r\n\/\/\u00a0\u5c06\u6587\u4ef6\u5185\u5bb9\u4fdd\u5b58\u5230\u6570\u636e\u5e93\r\nPreparedStatement\u00a0stmt\u00a0=\u00a0conn.prepareStatement(\"INSERT\u00a0INTO\u00a0file_table\u00a0(file_name,\u00a0file_content)\u00a0VALUES\u00a0\r\n(?,\u00a0?)\");\r\nstmt.setString(1,\u00a0fileName);\r\nstmt.setBinaryStream(2,\u00a0filePart.getInputStream());\r\nstmt.executeUpdate();\r\n\/\/\u00a0\u5173\u95ed\u6570\u636e\u5e93\u8fde\u63a5\r\nstmt.close();\r\nconn.close();<\/pre>\n<p>\u4e0a\u8a18\u4f8b\u3067\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30c6\u30fc\u30d6\u30eb\u540d\u306f`file_table`\u3067\u3001 `file_name`\u3068`file_content`\u306e2\u3064\u306e\u30ab\u30e9\u30e0\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002`file_name`\u306f\u30d5\u30a1\u30a4\u30eb\u540d\u3001`file_content`\u306fBLOB\u578b\u30d5\u30a1\u30a4\u30eb\u30b3\u30f3\u30c6\u30f3\u30c4\u3067\u3059\u3002`request.getPart(&#8220;file&#8221;)`\u306f\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3055\u308c\u305f\u30d5\u30a1\u30a4\u30eb\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002`filePart.getInputStream()`\u306f\u30d5\u30a1\u30a4\u30eb\u30b3\u30f3\u30c6\u30f3\u30c4\u306e\u5165\u529b\u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002\u4e0a\u8a18\u30b3\u30fc\u30c9\u306f\u4f8b\u3067\u3042\u308a\u3001\u5b9f\u969b\u306b\u306f\u30a8\u30e9\u30fc\u51e6\u7406\u3084\u30d5\u30a9\u30fc\u30e0\u306e\u691c\u8a3c\u304c\u5fc5\u8981\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4fdd\u5b58\u3059\u308b\u3053\u3068\u306f\u3042\u307e\u308a\u63a8\u5968\u3055\u308c\u3066\u304a\u3089\u305a\u3001\u901a\u5e38\u306f\u30d5\u30a1\u30a4\u30eb\u306f\u30c7\u30a3\u30b9\u30af\u306b\u4fdd\u5b58\u3055\u308c\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u306f\u30d5\u30a1\u30a4\u30eb\u306e\u30d1\u30b9\u304c\u4fdd\u5b58\u3055\u308c\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java \u3067\u30d5\u30a1\u30a4\u30eb\u3092\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u683c\u7d0d\u3059\u308b\u306b\u306f\u3001\u4e3b\u306b\u4ee5\u4e0b\u306e\u624b\u9806\u304c\u5fc5\u8981\u3067\u3059\u30021. \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30c6\u30fc\u30d6\u30eb\u306e\u4f5c\u6210: \u30d5\u30a1\u30a4\u30eb\u540d\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u7a2e\u985e\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9\u306a\u3069\u306e\u30d5\u30a1\u30a4\u30eb\u95a2\u9023\u60c5\u5831\u3092\u683c\u7d0d\u3059\u308b\u305f\u3081\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30c6\u30fc\u30d6\u30eb\u3092\u6700\u521d\u306b [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-90685","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO 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