{"id":94067,"date":"2024-03-21T17:26:05","date_gmt":"2024-03-21T08:26:05","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e8%a4%87%e6%95%b0%e3%81%ae%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%82%92%e3%81%be%e3%81%a8%e3%82%81%e3%81%a6%e3%82%a2%e3%83%83%e3%83%97%e3%83%ad%e3%83%bc%e3%83%89%e3%81%99%e3%82%8b\/"},"modified":"2024-04-05T19:25:36","modified_gmt":"2024-04-05T10:25:36","slug":"java%e3%81%a7%e8%a4%87%e6%95%b0%e3%81%ae%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%82%92%e3%81%be%e3%81%a8%e3%82%81%e3%81%a6%e3%82%a2%e3%83%83%e3%83%97%e3%83%ad%e3%83%bc%e3%83%89%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e8%a4%87%e6%95%b0%e3%81%ae%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%82%92%e3%81%be%e3%81%a8%e3%82%81%e3%81%a6%e3%82%a2%e3%83%83%e3%83%97%e3%83%ad%e3%83%bc%e3%83%89%e3%81%99%e3%82%8b\/","title":{"rendered":"Java\u3067\u8907\u6570\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u307e\u3068\u3081\u3066\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3059\u308b\u65b9\u6cd5\u306f\uff1f"},"content":{"rendered":"<p>Java\u3067\u306f\u3001Apache Commons FileUpload\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u7528\u3057\u3066\u30de\u30eb\u30c1\u30d1\u30fc\u30c8\u30d5\u30a1\u30a4\u30eb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3092\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u7c21\u5358\u306a\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> org.apache.commons.fileupload.FileItem;\r\n<span class=\"hljs-keyword\">import<\/span> org.apache.commons.fileupload.disk.DiskFileItemFactory;\r\n<span class=\"hljs-keyword\">import<\/span> org.apache.commons.fileupload.servlet.ServletFileUpload;\r\n\r\n<span class=\"hljs-keyword\">import<\/span> javax.servlet.ServletException;\r\n<span class=\"hljs-keyword\">import<\/span> javax.servlet.annotation.WebServlet;\r\n<span class=\"hljs-keyword\">import<\/span> javax.servlet.http.HttpServlet;\r\n<span class=\"hljs-keyword\">import<\/span> javax.servlet.http.HttpServletRequest;\r\n<span class=\"hljs-keyword\">import<\/span> javax.servlet.http.HttpServletResponse;\r\n<span class=\"hljs-keyword\">import<\/span> java.io.File;\r\n<span class=\"hljs-keyword\">import<\/span> java.io.IOException;\r\n<span class=\"hljs-keyword\">import<\/span> java.util.List;\r\n\r\n<span class=\"hljs-meta\">@WebServlet(\"\/upload\")<\/span>\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">FileUploadServlet<\/span> <span class=\"hljs-keyword\">extends<\/span> <span class=\"hljs-title class_\">HttpServlet<\/span> {\r\n    <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-keyword\">final<\/span> <span class=\"hljs-type\">long<\/span> <span class=\"hljs-variable\">serialVersionUID<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-number\">1L<\/span>;\r\n\r\n    <span class=\"hljs-keyword\">protected<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">doPost<\/span><span class=\"hljs-params\">(HttpServletRequest request, HttpServletResponse response)<\/span> <span class=\"hljs-keyword\">throws<\/span> ServletException, IOException {\r\n        <span class=\"hljs-comment\">\/\/ \u68c0\u67e5\u8868\u5355\u662f\u5426\u4e3a\u6587\u4ef6\u4e0a\u4f20\u8868\u5355<\/span>\r\n        <span class=\"hljs-keyword\">if<\/span> (!ServletFileUpload.isMultipartContent(request)) {\r\n            response.getWriter().println(<span class=\"hljs-string\">\"\u4e0d\u662f\u6709\u6548\u7684\u6587\u4ef6\u4e0a\u4f20\u8868\u5355\"<\/span>);\r\n            <span class=\"hljs-keyword\">return<\/span>;\r\n        }\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u521b\u5efa\u6587\u4ef6\u4e0a\u4f20\u5904\u7406\u5668<\/span>\r\n        <span class=\"hljs-type\">DiskFileItemFactory<\/span> <span class=\"hljs-variable\">factory<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">DiskFileItemFactory<\/span>();\r\n        <span class=\"hljs-type\">ServletFileUpload<\/span> <span class=\"hljs-variable\">upload<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">ServletFileUpload<\/span>(factory);\r\n\r\n        <span class=\"hljs-keyword\">try<\/span> {\r\n            <span class=\"hljs-comment\">\/\/ \u89e3\u6790\u4e0a\u4f20\u7684\u6587\u4ef6\u5217\u8868<\/span>\r\n            List&lt;FileItem&gt; items = upload.parseRequest(request);\r\n\r\n            <span class=\"hljs-comment\">\/\/ \u5904\u7406\u6bcf\u4e2a\u6587\u4ef6\u9879<\/span>\r\n            <span class=\"hljs-keyword\">for<\/span> (FileItem item : items) {\r\n                <span class=\"hljs-comment\">\/\/ \u5ffd\u7565\u975e\u6587\u4ef6\u9879<\/span>\r\n                <span class=\"hljs-keyword\">if<\/span> (item.isFormField()) {\r\n                    <span class=\"hljs-keyword\">continue<\/span>;\r\n                }\r\n\r\n                <span class=\"hljs-comment\">\/\/ \u83b7\u53d6\u6587\u4ef6\u540d\u548c\u4fdd\u5b58\u8def\u5f84<\/span>\r\n                <span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">fileName<\/span> <span class=\"hljs-operator\">=<\/span> item.getName();\r\n                <span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">savePath<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-string\">\"C:\/uploads\/\"<\/span> + fileName;\r\n\r\n                <span class=\"hljs-comment\">\/\/ \u4fdd\u5b58\u6587\u4ef6\u5230\u6307\u5b9a\u8def\u5f84<\/span>\r\n                <span class=\"hljs-type\">File<\/span> <span class=\"hljs-variable\">file<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">File<\/span>(savePath);\r\n                item.write(file);\r\n            }\r\n\r\n            response.getWriter().println(<span class=\"hljs-string\">\"\u6587\u4ef6\u4e0a\u4f20\u6210\u529f\"<\/span>);\r\n        } <span class=\"hljs-keyword\">catch<\/span> (Exception e) {\r\n            response.getWriter().println(<span class=\"hljs-string\">\"\u6587\u4ef6\u4e0a\u4f20\u5931\u8d25: \"<\/span> + e.getMessage());\r\n        }\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>\u30b5\u30f3\u30d7\u30eb\u3067\u306f\u3001\u307e\u305a\u8981\u6c42\u304c\u30d5\u30a1\u30a4\u30eb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u30d5\u30a9\u30fc\u30e0\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001\u6b21\u306b\u30d5\u30a1\u30a4\u30eb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u30cf\u30f3\u30c9\u30e9\u3092\u4f5c\u6210\u3057\u3066\u3044\u307e\u3059\u3002\u30d5\u30a1\u30a4\u30eb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u30cf\u30f3\u30c9\u30e9\u3092\u4f7f\u7528\u3057\u3066\u3001\u8981\u6c42\u306b\u542b\u307e\u308c\u3066\u3044\u308b\u30d5\u30a1\u30a4\u30eb\u306e\u9805\u76ee\u30ea\u30b9\u30c8\u3092\u89e3\u6790\u3057\u3066\u3044\u307e\u3059\u3002\u5404\u30d5\u30a1\u30a4\u30eb\u9805\u76ee\u306b\u3064\u3044\u3066\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u9805\u76ee\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3057\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u9805\u76ee\u3067\u3042\u308c\u3070\u30d5\u30a1\u30a4\u30eb\u540d\u3068\u4fdd\u5b58\u5834\u6240\u3092\u53d6\u5f97\u3057\u3001\u6307\u5b9a\u3055\u308c\u305f\u5834\u6240\u306b\u30d5\u30a1\u30a4\u30eb\u3092\u4fdd\u5b58\u3057\u3066\u3044\u307e\u3059\u3002\u6700\u5f8c\u306b\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u306b\u6210\u529f\u3057\u305f\u3068\u3044\u3046\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8fd4\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u306a\u304a\u3001\u4e0a\u8a18\u30b3\u30fc\u30c9\u306e\u4fdd\u5b58\u5834\u6240\u306f\u300cC:\/uploads\/\u300d\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u304c\u3001\u5404\u81ea\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u4fdd\u5b58\u5834\u6240\u306e\u5909\u66f4\u3092\u884c\u3063\u3066\u304f\u3060\u3055\u3044\u3002\u307e\u305f\u3001Apache Commons FileUpload \u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u4f9d\u5b58\u95a2\u4fc2\u306b\u8ffd\u52a0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u3067\u306f\u3001Apache Commons FileUpload\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u7528\u3057\u3066\u30de\u30eb\u30c1\u30d1\u30fc\u30c8\u30d5\u30a1\u30a4\u30eb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3092\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u7c21\u5358\u306a\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u793a\u3057\u307e\u3059\u3002 import org.apache.common [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-94067","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"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\u8907\u6570\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u307e\u3068\u3081\u3066\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3059\u308b\u65b9\u6cd5\u306f\uff1f - 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\u3067\u8907\u6570\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u307e\u3068\u3081\u3066\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3059\u308b\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java\u3067\u8907\u6570\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u307e\u3068\u3081\u3066\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3059\u308b\u65b9\u6cd5\u306f\uff1f\" \/>\n<meta property=\"og:description\" content=\"Java\u3067\u306f\u3001Apache Commons FileUpload\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u7528\u3057\u3066\u30de\u30eb\u30c1\u30d1\u30fc\u30c8\u30d5\u30a1\u30a4\u30eb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3092\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u7c21\u5358\u306a\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u793a\u3057\u307e\u3059\u3002 import org.apache.common [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/java\u3067\u8907\u6570\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u307e\u3068\u3081\u3066\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3059\u308b\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-21T08:26:05+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-05T10:25:36+00:00\" \/>\n<meta name=\"author\" content=\"\u6d77\u6597, \u8475\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" 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