{"id":31704,"date":"2023-01-05T23:32:45","date_gmt":"2023-07-08T20:17:52","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8java%e4%b8%ad%e4%b8%8d%e8%83%bd%e4%bd%bf%e7%94%a8%e6%b3%a2%e6%b5%aa%e5%8f%b7%ef%bc%81\/"},"modified":"2024-04-29T08:40:20","modified_gmt":"2024-04-29T00:40:20","slug":"%e5%9c%a8java%e4%b8%ad%e4%b8%8d%e8%83%bd%e4%bd%bf%e7%94%a8%e6%b3%a2%e6%b5%aa%e5%8f%b7%ef%bc%81","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8java%e4%b8%ad%e4%b8%8d%e8%83%bd%e4%bd%bf%e7%94%a8%e6%b3%a2%e6%b5%aa%e5%8f%b7%ef%bc%81\/","title":{"rendered":"\u5728Java\u4e2d\u4e0d\u80fd\u4f7f\u7528~(\u6ce2\u6d6a\u53f7)\uff01"},"content":{"rendered":"<p>\u6211\u4e3a\u6b64\u611f\u5230\u5f88\u56f0\u60d1\u3002<br \/>\n\u56e0\u4e3a\u6211\u89c9\u5f97\u641c\u7d22\u67e5\u8be2\u53ef\u80fd\u4e0d\u592a\u5bb9\u6613\u627e\u5230\u76f8\u5173\u7ed3\u679c\uff0c\u6240\u4ee5\u5728\u67e5\u8be2\u91cc\u52a0\u4e0a\u4e86\u6ce2\u6d6a\u7b26\u53f7\u3002<br \/>\n\u8bf7\u4e0d\u8981\u8bef\u4ee5\u4e3a\u8fd9\u662f\u610f\u601d\u52a0\u8bfb\u97f3\u7684\u610f\u601d\uff0c\u8bf7\u89c1\u8c05\u3002<\/p>\n<h2>\u6267\u884c\u73af\u5883<\/h2>\n<p>Mac 10.11.1 \u548c Java 7<\/p>\n<h2>\u4e0d\u884c\u7684\u4eba<\/h2>\n<p>\u5982\u679c\u8981\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a&#8221;dir&#8221;\u7684\u76ee\u5f55\u3002<\/p>\n<pre class=\"post-pre\"><code>    <span class=\"nc\">File<\/span> <span class=\"n\">file<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">File<\/span><span class=\"o\">(<\/span><span class=\"s\">\"~\/dir\"<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"k\">if<\/span><span class=\"o\">(<\/span><span class=\"n\">file<\/span><span class=\"o\">.<\/span><span class=\"na\">exists<\/span><span class=\"o\">()){<\/span>\r\n        <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"dir\u3042\u308b\u3067\"<\/span><span class=\"o\">)<\/span>\r\n    <span class=\"o\">}<\/span>\r\n    <span class=\"k\">else<\/span><span class=\"o\">{<\/span>\r\n        <span class=\"n\">file<\/span><span class=\"o\">.<\/span><span class=\"na\">mkdir<\/span><span class=\"o\">();<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u8fd9\u6837\u505a\u4e0d\u884c\u3002<br \/>\n\u542c\u8bf4Java\u65e0\u6cd5\u4f7f\u7528~<br \/>\n\u6362\u53e5\u8bdd\u8bf4\uff0c~\u8fd9\u79cd\u4e1c\u897f\u6839\u672c\u5c31\u4e0d\u5b58\u5728\uff0c\u6240\u4ee5\u5728\u5224\u65adfile(~\/dir)\u662f\u5426\u5b58\u5728\u4e4b\u524d\uff0c~\u5c31\u4e0d\u5b58\u5728\u3002<\/p>\n<h2>\u597d\u4eba<\/h2>\n<p>\u5047\u8bbe\u8981\u521b\u5efa\u4e00\u4e2a\u540d\u4e3adir\u7684\u76ee\u5f55\u3002<\/p>\n<pre class=\"post-pre\"><code>    <span class=\"nc\">String<\/span> <span class=\"n\">homeDir<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">getenv<\/span><span class=\"o\">(<\/span><span class=\"s\">\"HOME\"<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"nc\">File<\/span> <span class=\"n\">file<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">File<\/span><span class=\"o\">(<\/span><span class=\"n\">homeDir<\/span> <span class=\"o\">+<\/span> <span class=\"s\">\"\/dir\"<\/span><span class=\"o\">);<\/span>\r\n    <span class=\"k\">if<\/span><span class=\"o\">(<\/span><span class=\"n\">file<\/span><span class=\"o\">.<\/span><span class=\"na\">exists<\/span><span class=\"o\">()){<\/span>\r\n        <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"s\">\"dir\u3042\u308b\u3067\"<\/span><span class=\"o\">)<\/span>\r\n    <span class=\"o\">}<\/span>\r\n    <span class=\"k\">else<\/span><span class=\"o\">{<\/span>\r\n        <span class=\"n\">file<\/span><span class=\"o\">.<\/span><span class=\"na\">mkdir<\/span><span class=\"o\">();<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u8fd9\u6837\u505a\u5c31\u53ef\u4ee5\u6210\u529f\u521b\u5efa\/home\/shu920921\/dir\uff01<\/p>\n<p>System.getenv(&#8220;HOME&#8221;) \u8fd4\u56de \/home\/shu920921\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u4e3a\u6b64\u611f\u5230\u5f88\u56f0\u60d1\u3002 \u56e0\u4e3a\u6211\u89c9\u5f97\u641c\u7d22\u67e5\u8be2\u53ef\u80fd\u4e0d\u592a\u5bb9\u6613\u627e\u5230\u76f8\u5173\u7ed3\u679c\uff0c\u6240\u4ee5\u5728\u67e5\u8be2\u91cc\u52a0\u4e0a\u4e86\u6ce2\u6d6a\u7b26\u53f7\u3002 \u8bf7\u4e0d\u8981\u8bef\u4ee5\u4e3a\u8fd9\u662f [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-31704","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>\u5728Java\u4e2d\u4e0d\u80fd\u4f7f\u7528~(\u6ce2\u6d6a\u53f7)\uff01 - 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\/zh\/blog\/\u5728java\u4e2d\u4e0d\u80fd\u4f7f\u7528\u6ce2\u6d6a\u53f7\uff01\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" 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