{"id":1276,"date":"2019-08-30T00:11:50","date_gmt":"2019-08-29T16:11:50","guid":{"rendered":"https:\/\/199604.com\/?p=1276"},"modified":"2019-09-01T22:43:08","modified_gmt":"2019-09-01T14:43:08","slug":"%e8%ae%b0%e5%bf%86%e7%b3%bb%e5%88%97-java-io%e7%9a%84%e5%ad%97%e8%8a%82%e8%be%93%e5%85%a5%e8%be%93%e5%87%ba%e6%b5%81","status":"publish","type":"post","link":"https:\/\/199604.com\/1276","title":{"rendered":"\u8bb0\u5fc6\u7cfb\u5217-Java IO\u7684\u5b57\u8282\u8f93\u5165\u8f93\u51fa\u6d41"},"content":{"rendered":"

\u4e0a\u4e00\u7bc7\u6211\u81ea\u5df1\u5199\u8fc7java io \u6d41\u7684\u57fa\u7840–\u5206\u7c7b\uff1a\u5b57\u8282\u6d41\u548c\u5b57\u7b26\u6d41\u3002<\/p>\n

\u90a3\u4e48\u8fd9\u7bc7\u5c31\u5148\u5199\u5b57\u8282\u6d41\u5427~\uff08\u4e3a\u4e86\u6c34\u591a\u70b9\u6587\u7ae0\u6ca1\u529e\u6cd5~\uff09<\/p>\n

\n

\u5b57\u8282\u8f93\u5165\u8f93\u51fa\u57fa\u7840\u6d41\uff1aInputStream\u3001OutputSteam<\/p>\n

<\/div><\/p>\n

\u4f46\u662f\u5462\uff0c\u6bd4\u8f83\u5e38\u7528\u7684\u4e24\u4e2a\u5b57\u8282\u6d41FileInputStream\u548cFileOutputStream<\/p>\n

FileInputStream<\/h3>\n

\u8be5\u6d41\u7528\u4e8e\u4ece\u6587\u4ef6\u8bfb\u53d6\u6570\u636e\uff0c\u5b83\u7684\u5bf9\u8c61\u53ef\u4ee5\u7528\u5173\u952e\u5b57new\u6765\u521b\u5efa\u3002<\/p>\n

\u6709\u591a\u79cd\u6784\u9020\u65b9\u6cd5\u53ef\u7528\u6765\u521b\u5efa\u5bf9\u8c61\u3002<\/p>\n

\u53ef\u4ee5\u4f7f\u7528\u5b57\u7b26\u4e32\u7c7b\u578b\u7684\u6587\u4ef6\u540d\u6765\u521b\u5efa\u4e00\u4e2a\u8f93\u5165\u6d41\u5bf9\u8c61\u6765\u8bfb\u53d6\u6587\u4ef6\uff1a<\/p>\n

InputStream f = new FileInputStream(“D:\/io\/glj”);<\/p>\n

\u4e5f\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e2a\u6587\u4ef6\u5bf9\u8c61\u6765\u521b\u5efa\u4e00\u4e2a\u8f93\u5165\u6d41\u5bf9\u8c61\u6765\u8bfb\u53d6\u6587\u4ef6\u3002\u6211\u4eec\u9996\u5148\u5f97\u4f7f\u7528File()\u65b9\u6cd5\u6765\u521b\u5efa\u4e00\u4e2a\u6587\u4ef6\u5bf9\u8c61\uff1a
\nFile f = new File(“D:\/io\/glj”);
\nInputStream ips= new FileInputStream(f);<\/p>\n

\u521b\u5efa\u4e86InputStream\u5bf9\u8c61\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u7684\u65b9\u6cd5:<\/p>\n

\"\"<\/div><\/p>\n

FileOutputStream<\/h3>\n

\u8be5\u7c7b\u7528\u6765\u521b\u5efa\u4e00\u4e2a\u6587\u4ef6\u5e76\u5411\u6587\u4ef6\u4e2d\u5199\u6570\u636e\u3002<\/p>\n

\u5982\u679c\u8be5\u6d41\u5728\u6253\u5f00\u6587\u4ef6\u8fdb\u884c\u8f93\u51fa\u524d\uff0c\u76ee\u6807\u6587\u4ef6\u4e0d\u5b58\u5728\uff0c\u90a3\u4e48\u8be5\u6d41\u4f1a\u521b\u5efa\u8be5\u6587\u4ef6\u3002<\/p>\n

\u6709\u4e24\u4e2a\u6784\u9020\u65b9\u6cd5\u53ef\u4ee5\u7528\u6765\u521b\u5efaFileOutputStream \u5bf9\u8c61\u3002<\/p>\n

\u4f7f\u7528\u5b57\u7b26\u4e32\u7c7b\u578b\u7684\u6587\u4ef6\u540d\u6765\u521b\u5efa\u4e00\u4e2a\u8f93\u51fa\u6d41\u5bf9\u8c61\uff1a<\/p>\n

OutputStream f = new FileOutputStream(“C:\/io\/glj”);<\/p>\n

\u4e5f\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e2a\u6587\u4ef6\u5bf9\u8c61\u6765\u521b\u5efa\u4e00\u4e2a\u8f93\u51fa\u6d41\u6765\u5199\u6587\u4ef6\u3002\u6211\u4eec\u9996\u5148\u5f97\u4f7f\u7528File()\u65b9\u6cd5\u6765\u521b\u5efa\u4e00\u4e2a\u6587\u4ef6\u5bf9\u8c61\uff1a<\/p>\n

File f = new File(“C:\/io\/glj”);
\nOutputStream ops = new FileOutputStream(f);<\/p>\n

\u540c\u7406\uff1a\u521b\u5efa\u4e86OutputStream\u5bf9\u8c61\uff0c\u4e5f\u5c31\u53ef\u4ee5\u4f7f\u7528\u4e0b\u9762\u7684\u65b9\u6cd5\uff1a<\/p>\n

\"\"<\/div><\/p>\n

FileOutputStream\u4f8b\u5b50\u5427~<\/h3>\n
String destFile = \"D:\"+File.separator+\"destfile.txt\";\r\n        String lineSeparator = System.getProperty(\"line.separator\");\r\n        String line = \"g\";\r\n        String line2 = \"l\";\r\n        String line3 = \"j\";\r\n        try(FileOutputStream fos = new FileOutputStream(destFile)){\r\n            fos.write(line.getBytes());\r\n            fos.write(lineSeparator.getBytes());\r\n\r\n            fos.write(line2.getBytes());\r\n            fos.write(lineSeparator.getBytes());\r\n\r\n            fos.write(line3.getBytes());\r\n            \/\/\u5237\u65b0\u8f93\u51fa\u6d41\r\n            fos.flush();\r\n            System.out.println(\"\u6587\u4ef6\u5df2\u7ecf\u5199\u5165\u5b8c\u6210\u3002\u5730\u5740\uff1a\"+new File(destFile).getAbsolutePath());\r\n        }catch (Exception e){\r\n            e.printStackTrace();\r\n        }<\/pre>\n
FileInputStream\u4f8b\u5b50\u5427~<\/h3>\n
String destFile = \"D:\"+File.separator+\"destfile.txt\";\r\n        try(FileInputStream fis = new FileInputStream(destFile)){\r\n            int size =  fis.available() ;\r\n            \/\/\u6839\u636e\u8f93\u5165\u6d41\u4e2d\u7684\u5b57\u8282\u6570\u521b\u5efabyte\u6570\u7ec4\r\n            byte[] array = new byte[size];\r\n            \/\/\u628a\u6570\u636e\u8bfb\u53d6\u5230\u6570\u7ec4\u4e2d\r\n            fis.read( array ) ;\r\n            String result = new String(array);\r\n            System.out.println(result);\r\n        }catch (Exception e) {\r\n            e.printStackTrace();\r\n        }<\/pre>\n
\n
<\/div>
<\/div><\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e0a\u4e00\u7bc7\u6211\u81ea\u5df1\u5199\u8fc7java io \u6d41\u7684\u57fa\u7840–\u5206\u7c7b\uff1a\u5b57\u8282\u6d41\u548c\u5b57\u7b26\u6d41\u3002 \u90a3\u4e48\u8fd9\u7bc7\u5c31\u5148\u5199\u5b57\u8282\u6d41\u5427~\uff08\u4e3a\u4e86\u6c34 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[217,129],"class_list":["post-1276","post","type-post","status-publish","format-standard","hentry","category-2","tag-io","tag-java"],"_links":{"self":[{"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/posts\/1276","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/comments?post=1276"}],"version-history":[{"count":4,"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/posts\/1276\/revisions"}],"predecessor-version":[{"id":1286,"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/posts\/1276\/revisions\/1286"}],"wp:attachment":[{"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/media?parent=1276"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/categories?post=1276"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/199604.com\/wp-json\/wp\/v2\/tags?post=1276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}