{"id":2716,"date":"2018-04-24T21:54:44","date_gmt":"2018-04-24T13:54:44","guid":{"rendered":"http:\/\/www.xttblog.com\/?p=2716"},"modified":"2018-04-24T21:55:26","modified_gmt":"2018-04-24T13:55:26","slug":"bytebuffer-%e7%9a%84%e7%bc%96%e7%a0%81%e5%92%8c%e8%a7%a3%e7%a0%81","status":"publish","type":"post","link":"https:\/\/www.xttblog.com\/?p=2716","title":{"rendered":"ByteBuffer \u7684\u7f16\u7801\u548c\u89e3\u7801"},"content":{"rendered":"<p>\n\t\u6570\u636e\u4f20\u8f93\u4e2d\u6211\u4eec\u4f7f\u7528\u7684\u662fByteBuffer\u5bf9\u8c61\u4f5c\u4e3a\u7f13\u51b2\u533a\uff0c\u5982\u679c\u5728\u901a\u9053\u4e24\u7aef\u6211\u4eec\u901a\u4fe1\u7684\u5185\u5bb9\u662f\u6587\u672c\u6570\u636e\uff0c\u8fd9\u5c31\u6d89\u53ca\u5230ByteBuffer\u4e0eCharBuffer\u7684\u8f6c\u6362\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Charset\u7c7b\u5b9e\u73b0\u8fd9\u4e2a\u8f6c\u6362\u7684\u529f\u80fd\u3002\n<\/p>\n<p>\n\t\u89e3\u7801\u793a\u4f8b\n<\/p>\n<pre class=\"brush:java;\">\r\nByteBuffer byteBuffer = ByteBuffer.allocate(128);\r\nbyteBuffer.put(new byte[]{-26, -120, -111, -25, -120, -79, -28, -67, -96});\r\nbyteBuffer.flip();\r\n\/*\u5bf9\u83b7\u53d6utf8\u7684\u7f16\u89e3\u7801\u5668*\/\r\nCharset utf8 = Charset.forName(&quot;UTF-8&quot;);\r\nCharBuffer charBuffer = utf8.decode(byteBuffer);\/*\u5bf9bytebuffer\u4e2d\u7684\u5185\u5bb9\u89e3\u7801*\/\r\n\/*array()\u8fd4\u56de\u7684\u5c31\u662f\u5185\u90e8\u7684\u6570\u7ec4\u5f15\u7528\uff0c\u7f16\u7801\u4ee5\u540e\u7684\u6709\u6548\u957f\u5ea6\u662f0~limit*\/\r\nchar[] charArr = Arrays.copyOf(charBuffer.array(), charBuffer.limit());\r\nSystem.out.println(charArr); \/*\u8fd0\u884c\u7ed3\u679c\uff1a\u6211\u7231\u4f60*\/<\/pre>\n<p>\n\t\u7f16\u7801\u793a\u4f8b\n<\/p>\n<pre class=\"brush:java;\">\r\nCharBuffer charBuffer = CharBuffer.allocate(128);\r\ncharBuffer.append(&quot;\u6211\u7231\u4f60&quot;);\r\ncharBuffer.flip();\r\n\/*\u5bf9\u83b7\u53d6utf8\u7684\u7f16\u89e3\u7801\u5668*\/\r\nCharset utf8 = Charset.forName(&quot;UTF-8&quot;);\r\nByteBuffer byteBuffer = utf8.encode(charBuffer); \/*\u5bf9charbuffer\u4e2d\u7684\u5185\u5bb9\u89e3\u7801*\/\r\n\/*array()\u8fd4\u56de\u7684\u5c31\u662f\u5185\u90e8\u7684\u6570\u7ec4\u5f15\u7528\uff0c\u7f16\u7801\u4ee5\u540e\u7684\u6709\u6548\u957f\u5ea6\u662f0~limit*\/\r\nbyte[] bytes = Arrays.copyOf(byteBuffer.array(), byteBuffer.limit());\r\nSystem.out.println(Arrays.toString(bytes));\r\n\/*\u8fd0\u884c\u7ed3\u679c\uff1a[-26, -120, -111, -25, -120, -79, -28, -67, -96] *\/<\/pre>\n<p>\n\t\u6211\u4eec\u8fd8\u53ef\u4ee5\u901a\u8fc7\u4ee3\u7801\u4e2d\u7684utf8\u7f16\u89e3\u7801\u5668\u5206\u522b\u83b7\u53d6\u7f16\u7801\u5668\u5bf9\u8c61\u548c\u89e3\u7801\u5668\u5bf9\u8c61\n<\/p>\n<pre class=\"brush:java;\">\r\nCharsetEncoder utf8Encoder = utf8.newEncoder();\r\nCharsetDecoder utf8Decoder = utf8.newDecoder();<\/pre>\n<p>\n\t\u5982\u679c\u4f60\u80fd\u719f\u7ec3\u7684\u4f7f\u7528 ByteBuffer \u5e76\u8bb2\u51fa\u4e00\u4e9b\u5b83\u7684\u539f\u7406\uff0c\u6211\u76f8\u4fe1\u4f60\u79bb\u9ad8\u85aa\u5de5\u8d44\u4e0d\u8fdc\u4e86\u3002<\/p>\n<!-- <audio autoplay=\"autoplay\" height=\"100\" width=\"100\" hidden=\"true\"><source src=\"https:\/\/c.coka.la\/orAvPR.mp3\" type=\"audio\/mp3\"\/><\/audio><img decoding=\"async\" src=\"https:\/\/images.weserv.nl\/?url=https:\/\/ws3.sinaimg.cn\/large\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/> --><p><!-- <img decoding=\"async\" src=\"https:\/\/raw.githubusercontent.com\/xmt1139057136\/xttblog\/master\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/>--><img decoding=\"async\" src=\"https:\/\/saas.51autoparts.cn\/api\/admin\/sys-file\/oss\/file?fileName=84db51f8561e448f9a4fda2eff0811f9.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/><\/p><p>\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01<b>\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1a<font color=\"red\">xttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p><p>\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a<a href=\"https:\/\/www.xttblog.com\">\u4e1a\u4f59\u8349<\/a>\uff1a &raquo; <a href=\"https:\/\/www.xttblog.com\/?p=2716\">ByteBuffer \u7684\u7f16\u7801\u548c\u89e3\u7801<\/a><\/p><!-- <div class=\"bd-reward-stl\"><button id=\"bdRewardBtn\"><span><\/span><\/button><\/div> -->","protected":false},"excerpt":{"rendered":"<p>\u6570\u636e\u4f20\u8f93\u4e2d\u6211\u4eec\u4f7f\u7528\u7684\u662fByteBuffer\u5bf9\u8c61\u4f5c\u4e3a\u7f13\u51b2\u533a\uff0c\u5982\u679c\u5728\u901a\u9053\u4e24\u7aef\u6211\u4eec\u901a\u4fe1\u7684\u5185\u5bb9\u662f\u6587\u672c\u6570\u636e\uff0c\u8fd9\u5c31\u6d89\u53ca\u5230B [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[1624,176,351,255,717],"class_list":["post-2716","post","type-post","status-publish","format-standard","hentry","category-java","tag-bytebuffer","tag-mina","tag-717"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/2716","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2716"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/2716\/revisions"}],"predecessor-version":[{"id":2717,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/2716\/revisions\/2717"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2716"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2716"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2716"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}