{"id":116575,"date":"2024-03-23T07:08:53","date_gmt":"2024-03-22T22:08:53","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%8b%e3%82%89%e5%88%86%e5%89%b2%e3%81%95%e3%82%8c%e3%81%9f%e3%82%a2%e3%83%bc%e3%82%ab%e3%82%a4%e3%83%96%e3%82%92%e4%bd%9c%e6%88%90%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/"},"modified":"2024-04-05T03:48:15","modified_gmt":"2024-04-04T18:48:15","slug":"java%e3%81%8b%e3%82%89%e5%88%86%e5%89%b2%e3%81%95%e3%82%8c%e3%81%9f%e3%82%a2%e3%83%bc%e3%82%ab%e3%82%a4%e3%83%96%e3%82%92%e4%bd%9c%e6%88%90%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%81%8b%e3%82%89%e5%88%86%e5%89%b2%e3%81%95%e3%82%8c%e3%81%9f%e3%82%a2%e3%83%bc%e3%82%ab%e3%82%a4%e3%83%96%e3%82%92%e4%bd%9c%e6%88%90%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/","title":{"rendered":"Java\u304b\u3089\u5206\u5272\u3055\u308c\u305f\u30a2\u30fc\u30ab\u30a4\u30d6\u3092\u4f5c\u6210\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<p>Java\u3067\u306fjava.util.zip\u30d1\u30c3\u30b1\u30fc\u30b8\u306b\u542b\u307e\u308c\u308bZipOutputStream\u30af\u30e9\u30b9\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u5206\u5272\u5727\u7e2e\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> java.io.*;\r\n<span class=\"hljs-keyword\">import<\/span> java.util.zip.*;\r\n\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">ZipSplitter<\/span> {\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-comment\">\/\/ \u538b\u7f29\u6e90\u6587\u4ef6\u5939\u8def\u5f84<\/span>\r\n        <span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">sourceDir<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-string\">\"path\/to\/source\/folder\"<\/span>;\r\n        <span class=\"hljs-comment\">\/\/ \u538b\u7f29\u6587\u4ef6\u4fdd\u5b58\u8def\u5f84<\/span>\r\n        <span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">destinationDir<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-string\">\"path\/to\/save\/zip\/files\"<\/span>;\r\n        <span class=\"hljs-comment\">\/\/ \u6bcf\u4e2a\u5206\u5377\u6587\u4ef6\u7684\u5927\u5c0f\uff0c\u5355\u4f4d\uff1a\u5b57\u8282<\/span>\r\n        <span class=\"hljs-type\">long<\/span> <span class=\"hljs-variable\">volumeSize<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-number\">1024<\/span> * <span class=\"hljs-number\">1024<\/span>; <span class=\"hljs-comment\">\/\/ 1MB<\/span>\r\n\r\n        <span class=\"hljs-keyword\">try<\/span> {\r\n            <span class=\"hljs-comment\">\/\/ \u521b\u5efa\u8f93\u5165\u6d41\u8bfb\u53d6\u6e90\u6587\u4ef6\u5939<\/span>\r\n            <span class=\"hljs-type\">File<\/span> <span class=\"hljs-variable\">sourceFolder<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">File<\/span>(sourceDir);\r\n            <span class=\"hljs-comment\">\/\/ \u521b\u5efa\u8f93\u51fa\u6d41\u4fdd\u5b58\u538b\u7f29\u6587\u4ef6<\/span>\r\n            <span class=\"hljs-type\">File<\/span> <span class=\"hljs-variable\">destinationFolder<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">File<\/span>(destinationDir);\r\n            <span class=\"hljs-keyword\">if<\/span> (!destinationFolder.exists()) {\r\n                destinationFolder.mkdirs();\r\n            }\r\n\r\n            <span class=\"hljs-comment\">\/\/ \u83b7\u53d6\u6e90\u6587\u4ef6\u5939\u4e0b\u7684\u6240\u6709\u6587\u4ef6<\/span>\r\n            File[] files = sourceFolder.listFiles();\r\n\r\n            <span class=\"hljs-comment\">\/\/ \u521b\u5efa\u538b\u7f29\u6d41<\/span>\r\n            <span class=\"hljs-type\">ZipOutputStream<\/span> <span class=\"hljs-variable\">zipOutputStream<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-literal\">null<\/span>;\r\n            <span class=\"hljs-comment\">\/\/ \u5f53\u524d\u5206\u5377\u6587\u4ef6\u7684\u8ba1\u6570\u5668<\/span>\r\n            <span class=\"hljs-type\">int<\/span> <span class=\"hljs-variable\">volumeCounter<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-number\">1<\/span>;\r\n            <span class=\"hljs-comment\">\/\/ \u5f53\u524d\u5206\u5377\u6587\u4ef6\u7684\u5927\u5c0f<\/span>\r\n            <span class=\"hljs-type\">long<\/span> <span class=\"hljs-variable\">currentVolumeSize<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-number\">0<\/span>;\r\n\r\n            <span class=\"hljs-keyword\">for<\/span> (File file : files) {\r\n                <span class=\"hljs-comment\">\/\/ \u521b\u5efa\u5f53\u524d\u5206\u5377\u6587\u4ef6<\/span>\r\n                <span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">volumeFileName<\/span> <span class=\"hljs-operator\">=<\/span> destinationDir + File.separator + <span class=\"hljs-string\">\"volume\"<\/span> + volumeCounter + <span class=\"hljs-string\">\".zip\"<\/span>;\r\n                zipOutputStream = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">ZipOutputStream<\/span>(<span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">FileOutputStream<\/span>(volumeFileName));\r\n\r\n                <span class=\"hljs-comment\">\/\/ \u521b\u5efa\u5f53\u524d\u6587\u4ef6\u7684\u8f93\u5165\u6d41<\/span>\r\n                <span class=\"hljs-type\">FileInputStream<\/span> <span class=\"hljs-variable\">fileInputStream<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">FileInputStream<\/span>(file);\r\n                <span class=\"hljs-type\">ZipEntry<\/span> <span class=\"hljs-variable\">zipEntry<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">ZipEntry<\/span>(file.getName());\r\n                zipOutputStream.putNextEntry(zipEntry);\r\n\r\n                <span class=\"hljs-comment\">\/\/ \u8bfb\u53d6\u5f53\u524d\u6587\u4ef6\u5e76\u5199\u5165\u5206\u5377\u6587\u4ef6<\/span>\r\n                <span class=\"hljs-type\">byte<\/span>[] buffer = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">byte<\/span>[<span class=\"hljs-number\">1024<\/span>];\r\n                <span class=\"hljs-type\">int<\/span> length;\r\n                <span class=\"hljs-keyword\">while<\/span> ((length = fileInputStream.read(buffer)) &gt; <span class=\"hljs-number\">0<\/span>) {\r\n                    zipOutputStream.write(buffer, <span class=\"hljs-number\">0<\/span>, length);\r\n                    currentVolumeSize += length;\r\n\r\n                    <span class=\"hljs-comment\">\/\/ \u5224\u65ad\u5f53\u524d\u5206\u5377\u6587\u4ef6\u662f\u5426\u8fbe\u5230\u6307\u5b9a\u5927\u5c0f\uff0c\u5982\u679c\u8fbe\u5230\uff0c\u5219\u5173\u95ed\u5f53\u524d\u5206\u5377\u6587\u4ef6\uff0c\u521b\u5efa\u65b0\u7684\u5206\u5377\u6587\u4ef6<\/span>\r\n                    <span class=\"hljs-keyword\">if<\/span> (currentVolumeSize &gt;= volumeSize) {\r\n                        zipOutputStream.closeEntry();\r\n                        zipOutputStream.close();\r\n                        volumeCounter++;\r\n                        currentVolumeSize = <span class=\"hljs-number\">0<\/span>;\r\n                        volumeFileName = destinationDir + File.separator + <span class=\"hljs-string\">\"volume\"<\/span> + volumeCounter + <span class=\"hljs-string\">\".zip\"<\/span>;\r\n                        zipOutputStream = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">ZipOutputStream<\/span>(<span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">FileOutputStream<\/span>(volumeFileName));\r\n                        zipEntry = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">ZipEntry<\/span>(file.getName());\r\n                        zipOutputStream.putNextEntry(zipEntry);\r\n                    }\r\n                }\r\n\r\n                <span class=\"hljs-comment\">\/\/ \u5173\u95ed\u5f53\u524d\u6587\u4ef6\u7684\u8f93\u5165\u6d41<\/span>\r\n                fileInputStream.close();\r\n            }\r\n\r\n            <span class=\"hljs-comment\">\/\/ \u5173\u95ed\u6700\u540e\u4e00\u4e2a\u5206\u5377\u6587\u4ef6\u7684\u8f93\u5165\u6d41<\/span>\r\n            zipOutputStream.closeEntry();\r\n            zipOutputStream.close();\r\n        } <span class=\"hljs-keyword\">catch<\/span> (IOException e) {\r\n            e.printStackTrace();\r\n        }\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>\u6307\u5b9a\u306e\u5404\u30d5\u30a9\u30eb\u30c0\u30fc\u5185\u306e\u3059\u3079\u3066\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u5206\u5272\u5727\u7e2e\u3057\u3001\u6307\u5b9a\u306e\u5727\u7e2e\u30d5\u30a9\u30eb\u30c0\u30fc\u306b\u4fdd\u5b58\u3057\u307e\u3059\u3002sourceDir\u3001destinationDir\u3001volumeSize \u306a\u3069\u306e\u5909\u6570\u306e\u5024\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u3067\u3001\u3055\u307e\u3056\u307e\u306a\u30cb\u30fc\u30ba\u306b\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u3067\u306fjava.util.zip\u30d1\u30c3\u30b1\u30fc\u30b8\u306b\u542b\u307e\u308c\u308bZipOutputStream\u30af\u30e9\u30b9\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u5206\u5272\u5727\u7e2e\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002 import java.io.*; import j [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-116575","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\u304b\u3089\u5206\u5272\u3055\u308c\u305f\u30a2\u30fc\u30ab\u30a4\u30d6\u3092\u4f5c\u6210\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\u304b\u3089\u5206\u5272\u3055\u308c\u305f\u30a2\u30fc\u30ab\u30a4\u30d6\u3092\u4f5c\u6210\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\u304b\u3089\u5206\u5272\u3055\u308c\u305f\u30a2\u30fc\u30ab\u30a4\u30d6\u3092\u4f5c\u6210\u3059\u308b\u65b9\u6cd5\" \/>\n<meta property=\"og:description\" content=\"Java\u3067\u306fjava.util.zip\u30d1\u30c3\u30b1\u30fc\u30b8\u306b\u542b\u307e\u308c\u308bZipOutputStream\u30af\u30e9\u30b9\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u5206\u5272\u5727\u7e2e\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002 import java.io.*; import j [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/java\u304b\u3089\u5206\u5272\u3055\u308c\u305f\u30a2\u30fc\u30ab\u30a4\u30d6\u3092\u4f5c\u6210\u3059\u308b\u65b9\u6cd5\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" 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