{"id":64765,"date":"2026-01-24T02:16:23","date_gmt":"2026-01-23T18:16:23","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/64765.html"},"modified":"2026-01-24T02:16:23","modified_gmt":"2026-01-23T18:16:23","slug":"javaio%e6%b5%81%ef%bc%9a%e5%ad%97%e8%8a%82%e6%b5%81%e4%b8%8e%e5%ad%97%e7%ac%a6%e6%b5%81%e8%bd%ac%e6%8d%a2%e5%85%a8%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/64765.html","title":{"rendered":"JavaIO\u6d41\uff1a\u5b57\u8282\u6d41\u4e0e\u5b57\u7b26\u6d41\u8f6c\u6362\u5168\u89e3\u6790"},"content":{"rendered":"<p>\u5b57\u8282\u6d41\u4e0e\u5b57\u7b26\u6d41\u7684\u672c\u8d28\u533a\u522b<\/p>\n<li>\n<p>\u5904\u7406\u5355\u4f4d\u4e0d\u540c&#xff1a;<\/p>\n<ul>\n<li>\u5b57\u8282\u6d41 (InputStream\/OutputStream \u53ca\u5176\u5b50\u7c7b)&#xff1a;\u4ee5\u5b57\u8282(byte)\u4e3a\u5355\u4f4d\u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\u3002\u9002\u7528\u4e8e\u5904\u7406\u6240\u6709\u7c7b\u578b\u7684\u6570\u636e&#xff0c;\u5982\u56fe\u7247\u3001\u97f3\u9891\u3001\u89c6\u9891\u3001\u4e8c\u8fdb\u5236\u6587\u4ef6\u7b49\u3002<\/li>\n<li>\u5b57\u7b26\u6d41 (Reader\/Writer \u53ca\u5176\u5b50\u7c7b)&#xff1a;\u4ee5\u5b57\u7b26(char)\u4e3a\u5355\u4f4d\u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\u3002\u5b57\u7b26\u5728 Java \u4e2d\u5360\u4e24\u4e2a\u5b57\u8282\u3002\u5b57\u7b26\u6d41\u4e13\u95e8\u4e3a\u5904\u7406\u6587\u672c\u6570\u636e\u8bbe\u8ba1&#xff0c;\u5b83\u4f1a\u81ea\u52a8\u5904\u7406\u5b57\u7b26\u7f16\u7801(\u5982 UTF-8, GBK \u7b49)\u7684\u89e3\u7801\u548c\u7f16\u7801\u5de5\u4f5c\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u9002\u7528\u573a\u666f\u4e0d\u540c&#xff1a;<\/p>\n<ul>\n<li>\u5b57\u8282\u6d41&#xff1a;\u9002\u7528\u4e8e\u4efb\u4f55\u6570\u636e\u7684\u8f93\u5165\/\u8f93\u51fa&#xff0c;\u7279\u522b\u662f\u975e\u6587\u672c\u6570\u636e\u3002<\/li>\n<li>\u5b57\u7b26\u6d41&#xff1a;\u9002\u7528\u4e8e\u6587\u672c\u6570\u636e\u7684\u8f93\u5165\/\u8f93\u51fa\u3002<\/li>\n<\/ul>\n<\/li>\n<h4>\u4e3a\u4ec0\u4e48\u9700\u8981\u4ece\u5b57\u8282\u6d41\u8f6c\u6362\u5230\u5b57\u7b26\u6d41&#xff1f;<\/h4>\n<p>\u5f53\u6211\u4eec\u5904\u7406\u6587\u672c\u6587\u4ef6\u6216\u7f51\u7edc\u4f20\u8f93\u7684\u6587\u672c\u4fe1\u606f\u65f6&#xff0c;\u76f4\u63a5\u4f7f\u7528\u5b57\u8282\u6d41\u8bfb\u53d6\u5230\u7684\u662f\u4e00\u5806\u5b57\u8282\u3002\u8981\u6b63\u786e\u5730\u5c06\u5176\u8f6c\u6362\u4e3a\u53ef\u8bfb\u7684\u6587\u672c&#xff0c;\u6211\u4eec\u9700\u8981\u77e5\u9053\u8fd9\u4e9b\u5b57\u8282\u4f7f\u7528\u4e86\u54ea\u79cd\u5b57\u7b26\u7f16\u7801\u89c4\u5219&#xff08;\u5982 UTF-8, GBK, ISO-8859-1 \u7b49&#xff09;\u3002<\/p>\n<p>\u5b57\u7b26\u6d41 (Reader\/Writer) \u5c01\u88c5\u4e86\u8fd9\u79cd\u7f16\u7801\u8f6c\u6362\u7684\u7ec6\u8282\u3002\u5b83\u4eec\u5185\u90e8\u901a\u5e38\u4f1a\u4f7f\u7528\u4e00\u4e2a\u5b57\u8282\u6d41\u4f5c\u4e3a\u6570\u636e\u6765\u6e90&#xff0c;\u5e76\u5728\u6b64\u57fa\u7840\u4e0a\u8fdb\u884c\u5b57\u7b26\u89e3\u7801\u6216\u7f16\u7801\u3002<\/p>\n<h4>\u5173\u952e\u7684\u6865\u6881&#xff1a;InputStreamReader \u548c OutputStreamWriter<\/h4>\n<p>Java \u63d0\u4f9b\u4e86\u4e24\u4e2a\u6838\u5fc3\u7c7b\u6765\u5b9e\u73b0\u5b57\u8282\u6d41\u5230\u5b57\u7b26\u6d41\u7684\u8f6c\u6362&#xff1a;<\/p>\n<li>\n<p>InputStreamReader&#xff1a;<\/p>\n<ul>\n<li>\u8fd9\u662f\u4e00\u4e2a\u5b57\u7b26\u8f93\u5165\u6d41 (Reader)\u3002<\/li>\n<li>\u5b83\u5185\u90e8\u5305\u88c5\u4e86\u4e00\u4e2a\u5b57\u8282\u8f93\u5165\u6d41 (InputStream)&#xff0c;\u5982 FileInputStream \u6216 Socket.getInputStream()\u3002<\/li>\n<li>\u5b83\u7684\u4f5c\u7528\u662f\u5c06\u5b57\u8282\u6d41\u6309\u7167\u6307\u5b9a\u7684\u5b57\u7b26\u7f16\u7801\u89e3\u7801\u6210\u5b57\u7b26\u6d41\u3002<\/li>\n<li>\u6784\u9020\u65b9\u6cd5&#xff1a;\n<ul>\n<li>InputStreamReader(InputStream in): \u4f7f\u7528\u5e73\u53f0\u9ed8\u8ba4\u7684\u5b57\u7b26\u7f16\u7801\u3002<\/li>\n<li>InputStreamReader(InputStream in, String charsetName): \u663e\u5f0f\u6307\u5b9a\u5b57\u7b26\u7f16\u7801\u540d\u79f0&#xff08;\u5982 &#034;UTF-8&#034;&#xff09;\u3002<\/li>\n<li>InputStreamReader(InputStream in, Charset charset): \u663e\u5f0f\u6307\u5b9a Charset \u5bf9\u8c61\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u793a\u4f8b&#xff1a;\n<p>\/\/ \u4f7f\u7528\u9ed8\u8ba4\u7f16\u7801\u8bfb\u53d6\u6587\u4ef6<br \/>\ntry (Reader reader &#061; new InputStreamReader(new FileInputStream(&#034;textfile.txt&#034;))) {<br \/>\n    int data;<br \/>\n    while ((data &#061; reader.read()) !&#061; -1) {<br \/>\n        System.out.print((char) data); \/\/ \u76f4\u63a5\u8bfb\u53d6\u5b57\u7b26<br \/>\n    }<br \/>\n} catch (IOException e) {<br \/>\n    e.printStackTrace();<br \/>\n}<\/p>\n<p>\/\/ \u663e\u5f0f\u6307\u5b9a UTF-8 \u7f16\u7801\u8bfb\u53d6\u6587\u4ef6<br \/>\ntry (Reader reader &#061; new InputStreamReader(new FileInputStream(&#034;textfile.txt&#034;), &#034;UTF-8&#034;)) {<br \/>\n    \/\/ &#8230; \u8bfb\u53d6\u64cd\u4f5c\u540c\u4e0a<br \/>\n} catch (IOException e) {<br \/>\n    e.printStackTrace();<br \/>\n}<\/p>\n<p>https:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTI0MC5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTQzMS5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTYyMC5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTE0NC5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTQ0Mi5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTYzNy5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTY1NC5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTQ4Mi5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTE5My5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTE5OS5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTcwMy5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTkwMy5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTgxNC5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTgxNi5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTgyNi5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTcyNC5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTczMC5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTcwMC5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTgzMS5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNjAwNy5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTk0MC5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTk0MS5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTc0My5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNjAxNC5zaHRtbA&#061;&#061;.html<br \/>\nhttps:\/\/tv.sohu.com\/v\/dXMvNDQyMDkzMDExLzY5NjExNTg1MS5zaHRtbA&#061;&#061;.html<br \/>\n\u00a0<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>OutputStreamWriter&#xff1a;<\/p>\n<ul>\n<li>\u8fd9\u662f\u4e00\u4e2a\u5b57\u7b26\u8f93\u51fa\u6d41 (Writer)\u3002<\/li>\n<li>\u5b83\u5185\u90e8\u5305\u88c5\u4e86\u4e00\u4e2a\u5b57\u8282\u8f93\u51fa\u6d41 (OutputStream)&#xff0c;\u5982 FileOutputStream \u6216 Socket.getOutputStream()\u3002<\/li>\n<li>\u5b83\u7684\u4f5c\u7528\u662f\u5c06\u5b57\u7b26\u6d41\u6309\u7167\u6307\u5b9a\u7684\u5b57\u7b26\u7f16\u7801\u7f16\u7801\u6210\u5b57\u8282\u6d41\u5199\u5165\u5230\u5e95\u5c42\u5b57\u8282\u6d41\u4e2d\u3002<\/li>\n<li>\u6784\u9020\u65b9\u6cd5&#xff1a;\n<ul>\n<li>OutputStreamWriter(OutputStream out): \u4f7f\u7528\u5e73\u53f0\u9ed8\u8ba4\u7684\u5b57\u7b26\u7f16\u7801\u3002<\/li>\n<li>OutputStreamWriter(OutputStream out, String charsetName): \u663e\u5f0f\u6307\u5b9a\u5b57\u7b26\u7f16\u7801\u540d\u79f0\u3002<\/li>\n<li>OutputStreamWriter(OutputStream out, Charset charset): \u663e\u5f0f\u6307\u5b9a Charset \u5bf9\u8c61\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u793a\u4f8b&#xff1a;\n<p>\/\/ \u4f7f\u7528\u9ed8\u8ba4\u7f16\u7801\u5199\u5165\u6587\u4ef6<br \/>\ntry (Writer writer &#061; new OutputStreamWriter(new FileOutputStream(&#034;output.txt&#034;))) {<br \/>\n    writer.write(&#034;\u8fd9\u662f\u4e00\u6bb5\u6587\u672c\u5185\u5bb9\u3002&#034;);<br \/>\n} catch (IOException e) {<br \/>\n    e.printStackTrace();<br \/>\n}<\/p>\n<p>\/\/ \u663e\u5f0f\u6307\u5b9a GBK \u7f16\u7801\u5199\u5165\u6587\u4ef6<br \/>\ntry (Writer writer &#061; new OutputStreamWriter(new FileOutputStream(&#034;output.txt&#034;), &#034;GBK&#034;)) {<br \/>\n    writer.write(&#034;\u8fd9\u662f\u4e00\u6bb5\u6587\u672c\u5185\u5bb9\u3002&#034;);<br \/>\n} catch (IOException e) {<br \/>\n    e.printStackTrace();<br \/>\n}<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<h4>\u5176\u4ed6\u5b57\u7b26\u6d41<\/h4>\n<p>InputStreamReader \u548c OutputStreamWriter \u662f\u6700\u57fa\u7840\u7684\u8f6c\u6362\u6865\u6881\u3002Java \u8fd8\u63d0\u4f9b\u4e86\u8bb8\u591a\u57fa\u4e8e Reader \u548c Writer \u7684\u4fbf\u6377\u5b57\u7b26\u6d41&#xff0c;\u5b83\u4eec\u5185\u90e8\u901a\u5e38\u5df2\u7ecf\u4f7f\u7528\u4e86\u5b57\u8282\u6d41\u5e76\u5904\u7406\u4e86\u7f16\u7801\u8f6c\u6362&#xff1a;<\/p>\n<ul>\n<li>FileReader \/ FileWriter&#xff1a;\n<ul>\n<li>\u7528\u4e8e\u8bfb\u5199\u6587\u672c\u6587\u4ef6\u3002<\/li>\n<li>FileReader \u5185\u90e8\u4f7f\u7528 FileInputStream \u548c\u9ed8\u8ba4\u7f16\u7801&#xff08;\u6216 JVM \u542f\u52a8\u53c2\u6570\u6307\u5b9a\u7684\u7f16\u7801&#xff09;\u3002<\/li>\n<li>FileWriter \u5185\u90e8\u4f7f\u7528 FileOutputStream \u548c\u9ed8\u8ba4\u7f16\u7801\u3002<\/li>\n<li>\u6ce8\u610f&#xff1a;\u5b83\u4eec\u65e0\u6cd5\u6307\u5b9a\u5b57\u7b26\u7f16\u7801&#xff01;\u5982\u679c\u9700\u8981\u6307\u5b9a\u7f16\u7801&#xff0c;\u5fc5\u987b\u4f7f\u7528 InputStreamReader(new FileInputStream(&#8230;), &#034;\u7f16\u7801&#034;) \u6216 OutputStreamWriter(new FileOutputStream(&#8230;), &#034;\u7f16\u7801&#034;)\u3002<\/li>\n<li>\u793a\u4f8b&#xff1a;\n<p>try (FileReader reader &#061; new FileReader(&#034;textfile.txt&#034;)) {<br \/>\n    \/\/ &#8230; \u8bfb\u53d6\u5b57\u7b26<br \/>\n}<br \/>\ntry (FileWriter writer &#061; new FileWriter(&#034;output.txt&#034;)) {<br \/>\n    writer.write(&#034;\u6587\u672c\u5185\u5bb9&#034;);<br \/>\n}<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>BufferedReader \/ BufferedWriter&#xff1a;\n<ul>\n<li>\u63d0\u4f9b\u7f13\u51b2\u529f\u80fd&#xff0c;\u63d0\u9ad8\u8bfb\u5199\u6548\u7387\u3002<\/li>\n<li>\u901a\u5e38\u5305\u88c5\u5728 FileReader\u3001FileWriter\u3001InputStreamReader\u3001OutputStreamWriter \u6216\u5176\u4ed6 Reader\/Writer \u5916\u9762\u4f7f\u7528\u3002<\/li>\n<li>\u793a\u4f8b&#xff1a;\n<p>try (BufferedReader br &#061; new BufferedReader(new FileReader(&#034;largefile.txt&#034;))) {<br \/>\n    String line;<br \/>\n    while ((line &#061; br.readLine()) !&#061; null) { \/\/ \u6309\u884c\u8bfb\u53d6<br \/>\n        System.out.println(line);<br \/>\n    }<br \/>\n}<br \/>\ntry (BufferedWriter bw &#061; new BufferedWriter(new 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