{"id":492,"date":"2022-12-20T01:42:08","date_gmt":"2024-02-22T21:52:04","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/java-%e8%bf%bd%e5%8a%a0%e6%96%87%e4%bb%b6%e5%86%85%e5%ae%b9\/"},"modified":"2025-08-02T13:46:03","modified_gmt":"2025-08-02T05:46:03","slug":"java-%e8%bf%bd%e5%8a%a0%e6%96%87%e4%bb%b6%e5%86%85%e5%ae%b9","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/java-%e8%bf%bd%e5%8a%a0%e6%96%87%e4%bb%b6%e5%86%85%e5%ae%b9\/","title":{"rendered":"Java\u6587\u4ef6\u8ffd\u52a0\u5185\u5bb9\u5b8c\u5168\u6307\u5357\uff1a\u65b9\u6cd5\u4e0e\u4ee3\u7801\u793a\u4f8b"},"content":{"rendered":"<p>\u4eca\u5929\u6211\u4eec\u5c06\u63a2\u8ba8\u5982\u4f55\u5728Java\u4e2d\u5411\u6587\u4ef6\u8ffd\u52a0\u5185\u5bb9\u3002\u5728Java\u4e2d\uff0c\u6587\u4ef6\u8ffd\u52a0\u662f\u4e00\u79cd\u5e38\u89c1\u7684IO\u64cd\u4f5c\u3002\u4f8b\u5982\uff0c\u6bcf\u5f53\u6211\u4eec\u5411\u670d\u52a1\u5668\u65e5\u5fd7\u4e2d\u6253\u5370\u5185\u5bb9\u65f6\uff0c\u5b83\u4f1a\u88ab\u8ffd\u52a0\u5230\u73b0\u6709\u6587\u4ef6\u4e2d\u3002<\/p>\n<h2>\u4f7f\u7528Java\u5c06\u5185\u5bb9\u8ffd\u52a0\u5230\u6587\u4ef6\u4e2d<\/h2>\n<p>\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u7c7b\u6765\u5728Java\u4e2d\u8ffd\u52a0\u5230\u6587\u4ef6\uff1a<\/p>\n<ol>\n<li>\u4f7f\u7528Java\u7684FileWriter\u5411\u6587\u4ef6\u8ffd\u52a0\u5185\u5bb9<\/li>\n<li>\u4f7f\u7528Java\u7684BufferedWriter\u5411\u73b0\u6709\u6587\u4ef6\u8ffd\u52a0\u5185\u5bb9<\/li>\n<li>\u4f7f\u7528PrintWriter\u5411\u6587\u4ef6\u8ffd\u52a0\u6587\u672c<\/li>\n<li>\u4f7f\u7528FileOutputStream\u5411\u6587\u4ef6\u8ffd\u52a0\u5185\u5bb9\u7684Java\u65b9\u6cd5<\/li>\n<\/ol>\n<div><img decoding=\"async\" class=\"post-images\" title=\"Java\u6587\u4ef6\u8ffd\u52a0\u64cd\u4f5c\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/6564891ba4b2f92e6c732371\/4-0.jpg\" alt=\"java append to file\" \/><\/div>\n<h3>\u4f7f\u7528FileWriter\u5c06\u5185\u5bb9\u8ffd\u52a0\u5230Java\u6587\u4ef6\u4e2d<\/h3>\n<p>\u8fd9\u662f\u4f7f\u7528FileWriter\u5728Java\u4e2d\u8fdb\u884c\u6587\u4ef6\u8ffd\u52a0\u7684\u7b80\u77ed\u7a0b\u5e8f\u3002\u7a0d\u540e\u6211\u4eec\u5c06\u4f1a\u6f14\u793a\u4e00\u4e2a\u5b8c\u6574\u7684Java\u6587\u4ef6\u8ffd\u52a0\u793a\u4f8b\u7a0b\u5e8f\u3002<\/p>\n<pre class=\"post-pre\"><code>File file = new File(\"append.txt\");\r\nFileWriter fr = new FileWriter(file, true);\r\nfr.write(\"data\");\r\nfr.close();\r\n<\/code><\/pre>\n<h3>\u4f7f\u7528BufferedWriter\u5c06\u5185\u5bb9\u8ffd\u52a0\u5230\u73b0\u6709\u6587\u4ef6\u4e2d\u7684Java\u5b9e\u73b0<\/h3>\n<pre class=\"post-pre\"><code>File file = new File(\"append.txt\");\r\nFileWriter fr = new FileWriter(file, true);\r\nBufferedWriter br = new BufferedWriter(fr);\r\nbr.write(\"data\");\r\n\r\nbr.close();\r\nfr.close();\r\n<\/code><\/pre>\n<h3>\u5728Java\u4e2d\u4f7f\u7528PrintWriter\u5c06\u6587\u672c\u8ffd\u52a0\u5230\u6587\u4ef6\u4e2d<\/h3>\n<p>\u5728Java\u4e2d\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u4f7f\u7528PrintWriter\u6765\u8fdb\u884c\u6587\u4ef6\u7684\u8ffd\u52a0\u3002<\/p>\n<pre class=\"post-pre\"><code>File file = new File(\"append.txt\");\r\nFileWriter fr = new FileWriter(file, true);\r\nBufferedWriter br = new BufferedWriter(fr);\r\nPrintWriter pr = new PrintWriter(br);\r\npr.println(\"data\");\r\npr.close();\r\nbr.close();\r\nfr.close();\r\n<\/code><\/pre>\n<h3>\u4f7f\u7528FileOutputStream\u5728Java\u4e2d\u9644\u52a0\u5230\u6587\u4ef6<\/h3>\n<p>\u5f53\u6570\u636e\u662f\u539f\u59cb\u6570\u636e\u3001\u4e8c\u8fdb\u5236\u6570\u636e\u3001\u56fe\u50cf\u3001\u89c6\u9891\u7b49\u65f6\uff0c\u4f60\u5e94\u8be5\u4f7f\u7528FileOutputStream\u6765\u8ffd\u52a0\u6570\u636e\u5230\u6587\u4ef6\u4e2d\u3002<\/p>\n<pre class=\"post-pre\"><code>OutputStream os = new FileOutputStream(new File(\"append.txt\"), true);\r\nos.write(\"data\".getBytes(), 0, \"data\".length());\r\nos.close();\r\n<\/code><\/pre>\n<h3>Java\u5199\u6587\u4ef6\u9644\u52a0\u4f8b\u5b50<\/h3>\n<p>\u8fd9\u662f\u6700\u7ec8\u7684Java\u8ffd\u52a0\u5230\u6587\u4ef6\u7a0b\u5e8f\uff0c\u5c55\u793a\u4e86\u6211\u4eec\u4e0a\u8ff0\u8ba8\u8bba\u7684\u6240\u6709\u4e0d\u540c\u9009\u9879\u3002<\/p>\n<pre class=\"post-pre\"><code>package com.Olivia.files;\r\n\r\nimport java.io.BufferedWriter;\r\nimport java.io.File;\r\nimport java.io.FileOutputStream;\r\nimport java.io.FileWriter;\r\nimport java.io.IOException;\r\nimport java.io.OutputStream;\r\nimport java.io.PrintWriter;\r\n\r\npublic class JavaAppendToFile {\r\n\r\n\t\/**\r\n\t * Java\u8ffd\u52a0\u5230\u6587\u4ef6\u793a\u4f8b\r\n\t * \r\n\t * @param args\r\n\t *\/\r\n\tpublic static void main(String[] args) {\r\n\t\tString filePath = \"\/Users\/scdev\/Downloads\/append.txt\";\r\n\r\n\t\tString appendText = \"\u8fd9\u4e2a\u5b57\u7b26\u4e32\u5c06\u88ab\u8ffd\u52a0\u5230\u6587\u4ef6\u4e2d\uff0c\u5b57\u8282=0x0A 0xFF\";\r\n\r\n\t\tappendUsingFileWriter(filePath, appendText);\r\n\r\n\t\tappendUsingBufferedWriter(filePath, appendText, 2);\r\n\r\n\t\tappendUsingPrintWriter(filePath, appendText);\r\n\r\n\t\tappendUsingFileOutputStream(filePath, appendText);\r\n\t}\r\n\r\n\tprivate static void appendUsingPrintWriter(String filePath, String text) {\r\n\t\tFile file = new File(filePath);\r\n\t\tFileWriter fr = null;\r\n\t\tBufferedWriter br = null;\r\n\t\tPrintWriter pr = null;\r\n\t\ttry {\r\n\t\t\t\/\/ \u8981\u8ffd\u52a0\u5230\u6587\u4ef6\uff0c\u4f60\u9700\u8981\u4f7f\u7528\u4e0b\u9762\u7684\u6784\u9020\u51fd\u6570\u521d\u59cb\u5316FileWriter\r\n\t\t\tfr = new FileWriter(file, true);\r\n\t\t\tbr = new BufferedWriter(fr);\r\n\t\t\tpr = new PrintWriter(br);\r\n\t\t\tpr.println(text);\r\n\t\t} catch (IOException e) {\r\n\t\t\te.printStackTrace();\r\n\t\t} finally {\r\n\t\t\ttry {\r\n\t\t\t\tpr.close();\r\n\t\t\t\tbr.close();\r\n\t\t\t\tfr.close();\r\n\t\t\t} catch (IOException e) {\r\n\t\t\t\te.printStackTrace();\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n\r\n\t\/**\r\n\t * \u5f53\u5904\u7406\u539f\u59cb\u6570\u636e\u3001\u4e8c\u8fdb\u5236\u6570\u636e\u65f6\uff0c\u4f7f\u7528\u6d41\u8fdb\u884cJava\u6587\u4ef6\u8ffd\u52a0\r\n\t * \r\n\t * @param data\r\n\t *\/\r\n\tprivate static void appendUsingFileOutputStream(String fileName, String data) {\r\n\t\tOutputStream os = null;\r\n\t\ttry {\r\n\t\t\t\/\/ \u4e0b\u9762\u7684true\u6807\u5fd7\u544a\u8bc9\u8f93\u51fa\u6d41\u8fdb\u884c\u8ffd\u52a0\r\n\t\t\tos = new FileOutputStream(new File(fileName), true);\r\n\t\t\tos.write(data.getBytes(), 0, data.length());\r\n\t\t} catch (IOException e) {\r\n\t\t\te.printStackTrace();\r\n\t\t} finally {\r\n\t\t\ttry {\r\n\t\t\t\tos.close();\r\n\t\t\t} catch (IOException e) {\r\n\t\t\t\te.printStackTrace();\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n\r\n\t\/**\r\n\t * \u5f53\u5199\u5165\u64cd\u4f5c\u8f83\u591a\u65f6\u4f7f\u7528BufferedWriter\r\n\t * \r\n\t * @param filePath\r\n\t * @param text\r\n\t * @param noOfLines\r\n\t *\/\r\n\tprivate static void appendUsingBufferedWriter(String filePath, String text, int noOfLines) {\r\n\t\tFile file = new File(filePath);\r\n\t\tFileWriter fr = null;\r\n\t\tBufferedWriter br = null;\r\n\t\ttry {\r\n\t\t\t\/\/ \u8981\u8ffd\u52a0\u5230\u6587\u4ef6\uff0c\u4f60\u9700\u8981\u4f7f\u7528\u4e0b\u9762\u7684\u6784\u9020\u51fd\u6570\u521d\u59cb\u5316FileWriter\r\n\t\t\tfr = new FileWriter(file, true);\r\n\t\t\tbr = new BufferedWriter(fr);\r\n\t\t\tfor (int i = 0; i < noOfLines; i++) {\r\n\t\t\t\tbr.newLine();\r\n\t\t\t\t\/\/ \u4f60\u53ef\u4ee5\u4f7f\u7528write\u6216append\u65b9\u6cd5\r\n\t\t\t\tbr.write(text);\r\n\t\t\t}\r\n\r\n\t\t} catch (IOException e) {\r\n\t\t\te.printStackTrace();\r\n\t\t} finally {\r\n\t\t\ttry {\r\n\t\t\t\tbr.close();\r\n\t\t\t\tfr.close();\r\n\t\t\t} catch (IOException e) {\r\n\t\t\t\te.printStackTrace();\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n\r\n\t\/**\r\n\t * \u5f53\u5199\u5165\u64cd\u4f5c\u8f83\u5c11\u65f6\u4f7f\u7528FileWriter\r\n\t * \r\n\t * @param filePath\r\n\t * @param text\r\n\t * @param noOfLines\r\n\t *\/\r\n\tprivate static void appendUsingFileWriter(String filePath, String text) {\r\n\t\tFile file = new File(filePath);\r\n\t\tFileWriter fr = null;\r\n\t\ttry {\r\n\t\t\t\/\/ \u4e0b\u9762\u7684\u6784\u9020\u51fd\u6570\u53c2\u6570\u51b3\u5b9a\u662f\u8ffd\u52a0\u8fd8\u662f\u8986\u76d6\r\n\t\t\tfr = new FileWriter(file, true);\r\n\t\t\tfr.write(text);\r\n\r\n\t\t} catch (IOException e) {\r\n\t\t\te.printStackTrace();\r\n\t\t} finally {\r\n\t\t\ttry {\r\n\t\t\t\tfr.close();\r\n\t\t\t} catch (IOException e) {\r\n\t\t\t\te.printStackTrace();\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n<p>\u8fd9\u5c31\u662f\u5173\u4e8eJava\u7a0b\u5e8f\u8ffd\u52a0\u6587\u4ef6\u7684\u5185\u5bb9\u4e86\u3002<\/p>\n<p>\u4f60\u53ef\u4ee5\u5728\u6211\u4eec\u7684GitHub\u4ee3\u7801\u5e93\u4e2d\u627e\u5230\u66f4\u591a\u7684Java IO\u793a\u4f8b\u3002<\/p>\n<p>\u53c2\u8003\u6587\u732e\uff1a<\/p>\n<ul class=\"post-ul\">\n<li>PrintWriter API\u6587\u6863<\/li>\n<li>FileWriter API\u6587\u6863<\/li>\n<li>BufferedWriter API\u6587\u6863<\/li>\n<li>FileOutputStream API\u6587\u6863<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u4eca\u5929\u6211\u4eec\u5c06\u63a2\u8ba8\u5982\u4f55\u5728Java\u4e2d\u5411\u6587\u4ef6\u8ffd\u52a0\u5185\u5bb9\u3002\u5728Java\u4e2d\uff0c\u6587\u4ef6\u8ffd\u52a0\u662f\u4e00\u79cd\u5e38\u89c1\u7684IO\u64cd\u4f5c\u3002\u4f8b\u5982\uff0c\u6bcf\u5f53\u6211\u4eec\u5411\u670d\u52a1 [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[189,1241,960,1484,307],"class_list":["post-492","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-java","tag-java-io","tag-960","tag-1484","tag-307"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ 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