{"id":939,"date":"2018-09-17T18:39:34","date_gmt":"2018-09-17T09:39:34","guid":{"rendered":"https:\/\/chat-messenger.com\/?p=939"},"modified":"2018-12-23T01:53:23","modified_gmt":"2018-12-22T16:53:23","slug":"filechannel-transferto","status":"publish","type":"post","link":"https:\/\/chat-messenger.com\/ko\/blog\/java\/filechannel-transferto","title":{"rendered":"Java \ud30c\uc77c \ubcf5\uc0ac (\uac04\ub2e8 \u00b7 \uace0\uc18d)"},"content":{"rendered":"<h2 class=\"common_title\"><a name=\"0\">Java \ud30c\uc77c \ubcf5\uc0ac (\uac04\ub2e8 \u00b7 \uace0\uc18d)<\/a>FileChannel#transferTo<\/h2>\n<p>\nJava\uc5d0\uc11c<strong>\ud30c\uc77c \ubcf5\uc0ac<\/strong>\ud558\ub294 \uc0d8\ud50c \ud504\ub85c\uadf8\ub7a8\uc744 \uc18c\uac1c\ud569\ub2c8\ub2e4.<br \/>\n\uc0d8\ud50c \ud504\ub85c\uadf8\ub7a8\uc740 J2SE1.4\uc5d0\uc11c \ub3c4\uc785 \ub41c New I \/ O <strong>java.nio.channels.FileChannel#transferTo<\/strong> \uba54\uc18c\ub4dc\ub97c \uc774\uc6a9\ud569\ub2c8\ub2e4.<br \/>\n\ub370\uc774\ud130\uc758 \uc77d\uc5b4\ub4e4\uc5ec\uc5d0 \ud544\uc694\ud55c \ubc84\ud37c\ub97c \uc758\uc2dd\ud558\ub294 \uc77c \uc5c6\uc774, \uce74\ud53c \ucc98\ub9ac\uc758 \ud504\ub85c\uadf8\ub7a8\uc744 \uae30\uc220\ud560 \uc218 \uc788\uc5b4 \uac00\uc7a5 \uc2ec\ud50c\ud55c \ucf54\ub529\uc774 \ub429\ub2c8\ub2e4.\n<\/p>\n<h2 class=\"common_title\"><a name=\"1\">\ucc44\ub110\uc774\ub780?<\/a><\/h2>\n<p>\n\ucc44\ub110\uc774\ub77c\ub294 \ub2e8\uc5b4\ub294 \ub2e4\uc591\ud55c \uc758\ubbf8\ub85c \uc0ac\uc6a9\ub418\uace0 \uc788\uc9c0\ub9cc,<br \/>\n\uae30\ubcf8\uc801\uc73c\ub85c\ub294 \ub2e4\ub978 \ub514\ubc14\uc774\uc2a4\uc640\uc758 \uc0ac\uc774\uc5d0\uc11c \ub370\uc774\ud130\uc758 \uc785\ucd9c\ub825\uc744 \uc2e4\uc2dc\ud558\uae30 \uc704\ud55c \uc804\uc1a1\ub85c\ub97c \ub098\ud0c0\ub0b4\ub294 \uac83 \uac19\uc2b5\ub2c8\ub2e4.<strong>java.nio.channels.FileChannel<\/strong> \ub294 \ud30c\uc77c\uc5d0\uc758 \uc77d\uc5b4\ub4e4\uc5ec, \uae30\uc785\uc744 \uc2e4\uc2dc\ud558\uae30 \uc704\ud55c \uc811\uc18d\uc744 \ub098\ud0c0\ub0b4\ub294 \ud074\ub798\uc2a4\uac00 \ub429\ub2c8\ub2e4.<br \/>\n<br \/><strong>transferTo<\/strong> \uba54\uc18c\ub4dc\ub294, \uce74\ud53c\uc6d0\uc774 \ub418\ub294 \ud30c\uc77c\ub85c\ubd80\ud130, \uce74\ud53c\ucc98\uc758 \ucc44\ub110\uc5d0 \ubc14\uc774\ud2b8 \ub370\uc774\ud130\ub97c \uc804\uc1a1\ud560 \uc218\uac00 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uc774\ud558, JavaAPI \ubb38\uc11c\ub85c\ubd80\ud130 \uc778\uc6a9.\n<\/p>\n<blockquote><p>\n<strong>transferTo(long position, long count, WritableByteChannel target)<\/strong><br \/>\n\uc774 \ucc44\ub110\uc758 \ud30c\uc77c\ub85c\ubd80\ud130 \uc9c0\uc815\ub41c \uae30\uc785 \uac00\ub2a5\ud55c \ubc14\uc774\ud2b8 \ucc44\ub110\uc5d0 \ubc14\uc774\ud2b8\ub97c \uc804\uc1a1 \ud569\ub2c8\ub2e4.<br \/>\n\uc774 \ucc44\ub110\ub85c\ubd80\ud130 \ub370\uc774\ud130\ub97c \uc77d\uc5b4\ub4e4\uc5ec \ud0c0\uac9f \ucc44\ub110\uc5d0 \uae30\uc785\ud55c\ub2e4\uace0 \ud558\ub294 \ub2e8\uc21c\ud55c \ub8e8\ud504\ubcf4\ub2e4, \uc774 \uba54\uc18c\ub4dc \ucabd\uc774 \ud6e8\uc52c \ud6a8\uc728\uc801\uc73c\ub85c \ucc98\ub9ac\ud560 \uc218 \uc788\uc744 \uac00\ub2a5\uc131\uc774 \uc788\uc2b5\ub2c8\ub2e4. \ub9ce\uc740 \uc6b4\uc601 \uccb4\uc81c\ub294 \ud30c\uc77c \uc2dc\uc2a4\ud15c \uce90\uc2dc\uc5d0\uc11c \ub300\uc0c1 \ucc44\ub110\ub85c \ubc14\uc774\ud2b8\ub97c \uc9c1\uc811 \uc804\uc1a1\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \ub54c, \ubc14\uc774\ud2b8\uc758 \uce74\ud53c\ub294 \ud589\ud574\uc9c0\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.\n<\/p><\/blockquote>\n<p>\n\uc774\ubc88 \uac80\uc99d \uacb0\uacfc\uc5d0\uc11c\ub294, \ud1b5\uc0c1\uc758 \uc2a4\ud2b8\ub9bc\uc744 \uc774\uc6a9\ud558\ub294 \ubc29\ubc95\uc774\ub098,<br \/>\nFileChannel \uc758 \ub2e4\ub978 \ubc29\ubc95 ( ByteBuffer#allocateDirect \uba54\uc11c\ub4dc\ub97c \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95 \ub4f1)\ubcf4\ub2e4 \uace0\uc18d\uc73c\ub85c \uce74\ud53c \ucc98\ub9ac\ub97c \uc2e4\uc2dc\ud560 \uc218 \uc788\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n<p><script type=\"text\/javascript\" src=\"https:\/\/chat-messenger.com\/js\/common.js?dd12sssas2223\" charset=\"UTF-8\"><\/script><br \/>\n<script type=\"text\/javascript\"> writePR(); <\/script><\/p>\n<h2 class=\"common_title\"><a name=\"2\">\uc0d8\ud50c \ud504\ub85c\uadf8\ub7a8<\/a><\/h2>\n<p><textarea readonly=\"readonly\" style=\"font-size: 13px;height: 400px;\" class=\"src\" onclick=\"this.focus();this.select()\">\/**<br \/>\n * \u30b3\u30d4\u30fc\u5143\u306e\u30d1\u30b9[srcPath]\u304b\u3089\u3001\u30b3\u30d4\u30fc\u5148\u306e\u30d1\u30b9[destPath]\u3078<br \/>\n * \u30d5\u30a1\u30a4\u30eb\u306e\u30b3\u30d4\u30fc\u3092\u884c\u3044\u307e\u3059\u3002<br \/>\n * \u30b3\u30d4\u30fc\u51e6\u7406\u306b\u306fFileChannel#transferTo\u30e1\u30bd\u30c3\u30c9\u3092\u5229\u7528\u3057\u307e\u3059\u3002<br \/>\n * \u5c1a\u3001\u30b3\u30d4\u30fc\u51e6\u7406\u7d42\u4e86\u5f8c\u3001\u5165\u529b\u30fb\u51fa\u529b\u306e\u30c1\u30e3\u30cd\u30eb\u3092\u30af\u30ed\u30fc\u30ba\u3057\u307e\u3059\u3002<br \/>\n * @param srcPath    \u30b3\u30d4\u30fc\u5143\u306e\u30d1\u30b9<br \/>\n * @param destPath    \u30b3\u30d4\u30fc\u5148\u306e\u30d1\u30b9<br \/>\n * @throws IOException    \u4f55\u3089\u304b\u306e\u5165\u51fa\u529b\u51e6\u7406\u4f8b\u5916\u304c\u767a\u751f\u3057\u305f\u5834\u5408<br \/>\n *\/<br \/>\npublic static void copyTransfer(String srcPath, String destPath)<br \/>\n    throws IOException {<\/p>\n<p>    FileChannel srcChannel = new<br \/>\n        FileInputStream(srcPath).getChannel();<br \/>\n    FileChannel destChannel = new<br \/>\n        FileOutputStream(destPath).getChannel();<br \/>\n    try {<br \/>\n        srcChannel.transferTo(0, srcChannel.size(), destChannel);<br \/>\n    } finally {<br \/>\n        srcChannel.close();<br \/>\n        destChannel.close();<br \/>\n    }<\/p>\n<p>}<br \/>\n<\/textarea><\/p>\n<h2 class=\"common_title\"><a name=\"3\">\uc2e4\ud589<\/a><\/h2>\n<p>\n\uc0d8\ud50c \ud504\ub85c\uadf8\ub7a8\uc758 \ud30c\uc77c \uce74\ud53c\ub97c \uc2e4\uc2dc\ud558\uae30 \uc704\ud574\uc11c, C\ub4dc\ub77c\uc774\ube0c \ubc14\ub85c \uc544\ub798\uc5d0 100MB\uc758 \ud30c\uc77c \u300c100M.txt\u300d\ub97c \uc900\ube44\ud588\uc2b5\ub2c8\ub2e4.<br \/>\n\uc0d8\ud50c \ud504\ub85c\uadf8\ub7a8\uc5d0\uc11c\ub294 <i>C:\\100M.txt<\/i> \ubcf5\uc0ac <i>C:\\a.txt<\/i> \ud30c\uc77c\uc744 \ub9cc\ub4ed\ub2c8\ub2e4.<\/p>\n<p>\ub610\ud55c, \uc0d8\ud50c\uc758 \uc2e4\ud589\uc740 \uc774\ud558\uc758 \ud658\uacbd\uc5d0\uc11c \uc2e4\uc2dc\ud588\uc2b5\ub2c8\ub2e4.<br \/>\nOS : WindowsXP<br \/>\nCPU : Athlon 1.46GHz<br \/>\n\uba54\ubaa8\ub9ac : 1GB<br \/>\nJRE : 1.6.4\n<\/p>\n<p>\u25c6\uc2e4\ud589\uc608<\/p>\n<pre class=\"sample_src\">\/** * \uc608\uc81c \uc2e4\ud589 * @param args *\/ public static void main(String[] args) { try { copyTransfer(&quot;C:\\\\100M.txt&quot;, &quot;C:\\\\a.txt&quot;); } catch (IOException e) { e.printStackTrace(); } }\r\n<\/pre>\n<p>\u25c6\uc2e4\ud589 \uacb0\uacfc<br \/>\n<a href=\"https:\/\/chat-messenger.com\/images\/file_copy.jpg\" target=\"_blank\"><br \/>\n<img src=\"https:\/\/chat-messenger.com\/images\/file_copy.jpg\" alt=\"\" border=\"0\"><\/a><br clear=\"all\"><\/p>\n<p>\n\u3000<strong>FileChannel#transferTo<\/strong> \uba54\uc18c\ub4dc\ub97c \uc774\uc6a9\ud55c \ubcf5\uc0ac \ucc98\ub9ac\uc5d0\uc11c\ub294<br \/>\n100MB \ud30c\uc77c \ubcf5\uc0ac\uac00 3\ucd08 \uc815\ub3c4 \uc644\ub8cc\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \ub610\ud55c \ubcf5\uc0ac \ucc98\ub9ac \uc911\uc758 \ud799 \uc0ac\uc6a9\ub7c9\uc5d0 \ub300\ud574\uc11c\ub3c4 300 (KB) \uc815\ub3c4\uc600\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\ucc38\uace0\ub85c,<a href=\"https:\/\/chat-messenger.com\/ko\/blog\/java\/\ud30c\uc77c-\ubcf5\uc0ac\/\">Java \ud30c\uc77c \ubcf5\uc0ac(\ubc84\ud37c \ud06c\uae30 \ubcc0\uacbd)<\/a>\uc5d0\uc11c \uc18c\uac1c\ud558\ub294 \ubc29\ubc95\uc73c\ub85c,<br \/>\n\uac00\uc7a5 \ud6a8\uc728\uc801\uc778 1000KB \ubc84\ud37c \ud06c\uae30\ub97c \uc9c0\uc815\ud55c \uacbd\uc6b0 \ucc98\ub9ac \uc2dc\uac04\uc740 4\ucd08 \uc815\ub3c4, \ud799 \uc0ac\uc6a9\ub7c9\uc740 1,300KB \uc815\ub3c4\uc600\uc2b5\ub2c8\ub2e4.\n<\/p>\n<p>\n\uc2a4\ud2b8\ub9bc\uc5d0 \uc758\ud55c \ud30c\uc77c \uce74\ud53c\uc5d0\uc11c\ub3c4, \ubc84\ud37c \uc0ac\uc774\uc988\ub97c \ud29c\ub2dd\ud558\ub294 \uac83\uc73c\ub85c \uace0\uc18d\ud654\ub418\uae30 \ub54c\ubb38\uc5d0,<br \/>\n\ud558\ub098\uc758 \ud30c\uc77c\uc744 \ubcf5\uc0ac\ud558\ub294 \uacfc\uc815\uc5d0\uc11c\ub294 \uadf8\ub2e4\uc9c0 \ucc28\uc774\uac00 \uc5c6\ub2e4\uace0 \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<br \/>\n\uadf8\ub7ec\ub098, \ud070 \ud30c\uc77c\uc744 \uc5f0\uc18d\uc801\uc73c\ub85c \uce74\ud53c\ud558\ub294 \uacbd\uc6b0\ub098, \ubcf5\uc218\uc758 \uce74\ud53c \ucc98\ub9ac\ub97c \ud3c9\ud589\ud574 \uc2e4\ud589\ud558\ub294 \uacbd\uc6b0\uc5d0\uc11c\ub294, \ucc98\ub9ac \uc18d\ub3c4\u00b7\ud799 \uc0ac\uc6a9\ub7c9\uc758 \uad00\uc810\uc5d0\uc11c FileChannel \ub294 \ud6a8\uacfc\ub97c \ubc1c\ud718\ud560 \uc218 \uc788\uc744 \uac83\uc785\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"<p>Java \ud30c\uc77c \ubcf5\uc0ac (\uac04\ub2e8 \u00b7 \uace0\uc18d) FileChannel#transferTo Java\ub85c \ud30c\uc77c\uc744 [\u2026]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":""},"categories":[19],"tags":[],"_links":{"self":[{"href":"https:\/\/chat-messenger.com\/ko\/wp-json\/wp\/v2\/posts\/939"}],"collection":[{"href":"https:\/\/chat-messenger.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chat-messenger.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chat-messenger.com\/ko\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/chat-messenger.com\/ko\/wp-json\/wp\/v2\/comments?post=939"}],"version-history":[{"count":8,"href":"https:\/\/chat-messenger.com\/ko\/wp-json\/wp\/v2\/posts\/939\/revisions"}],"predecessor-version":[{"id":1883,"href":"https:\/\/chat-messenger.com\/ko\/wp-json\/wp\/v2\/posts\/939\/revisions\/1883"}],"wp:attachment":[{"href":"https:\/\/chat-messenger.com\/ko\/wp-json\/wp\/v2\/media?parent=939"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chat-messenger.com\/ko\/wp-json\/wp\/v2\/categories?post=939"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chat-messenger.com\/ko\/wp-json\/wp\/v2\/tags?post=939"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}