{"id":727,"date":"2019-12-09T13:55:32","date_gmt":"2019-12-09T05:55:32","guid":{"rendered":"http:\/\/prayerlaputa.com\/?p=727"},"modified":"2019-12-09T13:56:03","modified_gmt":"2019-12-09T05:56:03","slug":"java%e4%b8%ad%e5%a6%82%e4%bd%95%e5%88%a4%e6%96%ad%e6%96%87%e4%bb%b6%e7%b1%bb%e5%9e%8b","status":"publish","type":"post","link":"http:\/\/prayerlaputa.com\/?p=727","title":{"rendered":"Java\u4e2d\u5982\u4f55\u5224\u65ad\u6587\u4ef6\u7c7b\u578b"},"content":{"rendered":"<p>\u76ee\u524d\u770b\u5230\u7684\u6709\u4e24\u79cd\u65b9\u5f0f\uff1a<\/p>\n<ul>\n<li>\u6839\u636e\u6587\u4ef6\u540e\u7f00<\/li>\n<li>\u6839\u636e\u6587\u4ef6\u9b54\u6570<\/li>\n<\/ul>\n<h2 id=\"%E6%A0%B9%E6%8D%AE%E6%96%87%E4%BB%B6%E5%90%8E%E7%BC%80\" class=\"mume-header\">\u6839\u636e\u6587\u4ef6\u540e\u7f00<\/h2>\n<p>\u6ee1\u8db3\u4e00\u822c\u9700\u8981\uff0c\u4f46\u5982\u679c\u6587\u4ef6\u540e\u7f00\u88ab\u624b\u5de5\u4fee\u6539\uff0c\u5219\u53ef\u80fd\u5224\u65ad\u9519\u8bef\u3002<\/p>\n<p>JDK\u4e2d\u5df2\u7ecf\u63d0\u4f9b\u4e86\u73b0\u6210\u7684\u63a5\u53e3\u7528\u4e8e\u6839\u636e\u6587\u4ef6\u540d\u5224\u65ad\uff1a<!--more--><\/p>\n<pre class=\"language-\" data-role=\"codeBlock\" data-info=\"\"><code>URLConnection.guessContentTypeFromName(\"xxx.com\/api\/yyy.jpg\")\r\n<\/code><\/pre>\n<h2 id=\"%E6%A0%B9%E6%8D%AE%E6%96%87%E4%BB%B6%E9%AD%94%E6%95%B0\" class=\"mume-header\">\u6839\u636e\u6587\u4ef6\u9b54\u6570<\/h2>\n<p>\u9b54\u6570\u6982\u5ff5\u5c31\u4e0d\u5728\u6b64\u8d58\u8ff0\uff0c\u6b64\u79cd\u65b9\u5f0f\u4f1a\u901a\u8fc7\u8bfb\u53d6\u6587\u4ef6\u4e8c\u8fdb\u5236\u5b57\u8282\u6d41\u7684\u65b9\u5f0f\uff0c\u83b7\u53d6\u6587\u4ef6\u5f00\u5934\u7684\u51e0\u4e2a\u5b57\u8282\uff0c\u7528\u4e8e\u5224\u65ad\u6587\u4ef6\u7c7b\u578b\u3002<\/p>\n<p>JDK\u4e2d\u63d0\u4f9b\u7684\u63a5\u53e3\uff1a<\/p>\n<pre class=\"language-\" data-role=\"codeBlock\" data-info=\"\"><code>URLConnection.guessContentTypeFromStream(inputStream)\r\n<\/code><\/pre>\n<p>\u8be5\u65b9\u6cd5\u9700\u8981\u4f20\u5165\u6587\u4ef6\u8f93\u5165\u6d41\u3002<\/p>\n<p>\u5f53\u7136\uff0c\u4e5f\u6709\u7b2c\u4e09\u65b9\u5de5\u5177\u5e93\u4e5f\u53ef\u4ee5\u505a\u5230\u8fd9\u4e00\u70b9\uff0c\u6bd4\u5982<a href=\"https:\/\/blog.csdn.net\/wangpeng047\/article\/details\/38302395\/\">Java\u5982\u4f55\u83b7\u53d6Content-Type\u7684\u6587\u4ef6\u7c7b\u578bMime Type<\/a>\u8fd9\u7bc7\u6587\u7ae0\u4e2d\u63d0\u5230\u7684jMimeMagic\u5e93\uff0c\u53ef\u4ee5\u901a\u8fc7\u5982\u4e0b\u65b9\u5f0f\u83b7\u53d6\u7c7b\u578b\uff1a<\/p>\n<pre class=\"language-\" data-role=\"codeBlock\" data-info=\"\"><code>File file = new File(\"e:\\\\test\\\\123.gif\")\r\nMagicMatch match = Magic.getMagicMatch(file, false, true);\r\nString contentType = match.getMimeType();\r\nSystem.out.println(contentType);\r\n<\/code><\/pre>\n<h3 id=\"%E5%8F%82%E8%80%83%E8%B5%84%E6%96%99\" class=\"mume-header\">\u53c2\u8003\u8d44\u6599<\/h3>\n<ul>\n<li><a href=\"https:\/\/blog.csdn.net\/wangpeng047\/article\/details\/38302395\/\">Java\u5982\u4f55\u83b7\u53d6Content-Type\u7684\u6587\u4ef6\u7c7b\u578bMime Type<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u76ee\u524d\u770b\u5230\u7684\u6709\u4e24\u79cd\u65b9\u5f0f\uff1a \u6839\u636e\u6587\u4ef6\u540e\u7f00 \u6839\u636e\u6587\u4ef6\u9b54\u6570 \u6839\u636e\u6587\u4ef6\u540e\u7f00 \u6ee1\u8db3\u4e00\u822c\u9700\u8981\uff0c\u4f46\u5982\u679c\u6587\u4ef6\u540e\u7f00\u88ab\u624b\u5de5\u4fee\u6539\uff0c\u5219\u53ef <a href='http:\/\/prayerlaputa.com\/?p=727' class='excerpt-more'>[&#8230;]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"categories":[6],"tags":[31,33],"_links":{"self":[{"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=\/wp\/v2\/posts\/727"}],"collection":[{"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=727"}],"version-history":[{"count":1,"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=\/wp\/v2\/posts\/727\/revisions"}],"predecessor-version":[{"id":728,"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=\/wp\/v2\/posts\/727\/revisions\/728"}],"wp:attachment":[{"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=727"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=727"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/prayerlaputa.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=727"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}