{"id":30965,"date":"2024-03-09T06:07:26","date_gmt":"2023-09-15T12:33:11","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8java-11%e5%92%8cjava-7%e5%8f%af%e4%bb%a5%e8%bd%bb%e6%9d%be%e5%9c%b0%e8%af%bb%e5%8f%96%e6%96%87%e6%9c%ac%e6%96%87%e4%bb%b6%e3%80%82\/"},"modified":"2025-08-12T21:37:16","modified_gmt":"2025-08-12T13:37:16","slug":"%e4%bd%bf%e7%94%a8java-11%e5%92%8cjava-7%e5%8f%af%e4%bb%a5%e8%bd%bb%e6%9d%be%e5%9c%b0%e8%af%bb%e5%8f%96%e6%96%87%e6%9c%ac%e6%96%87%e4%bb%b6%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8java-11%e5%92%8cjava-7%e5%8f%af%e4%bb%a5%e8%bd%bb%e6%9d%be%e5%9c%b0%e8%af%bb%e5%8f%96%e6%96%87%e6%9c%ac%e6%96%87%e4%bb%b6%e3%80%82\/","title":{"rendered":"\u4f7f\u7528Java 11\u548cJava 7\u53ef\u4ee5\u8f7b\u677e\u5730\u8bfb\u53d6\u6587\u672c\u6587\u4ef6"},"content":{"rendered":"<h2>\u603b\u7ed3<\/h2>\n<ul class=\"post-ul\">\nJava 11 \u74b0\u5883\u3067\u306f Files.readString \u3068 Path.of \u3092\u4f7f\u7528<br \/>\nJava 7 \u74b0\u5883\u3067\u306f Files.readAllLines \u3084 Files.readAllBytes \u3068 Paths.get \u3092\u4f7f\u7528\n<\/ul>\n<h2>\u6837\u4f8b\u4ee3\u7801 Cat.java<\/h2>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"nn\">java.io.IOException<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">java.nio.charset.Charset<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">java.nio.file.Files<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">java.nio.file.Path<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">java.nio.file.Paths<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">java.util.List<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">Cat<\/span> <span class=\"o\">{<\/span>\r\n\r\n    <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">main<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span><span class=\"o\">[]<\/span> <span class=\"n\">args<\/span><span class=\"o\">)<\/span> <span class=\"kd\">throws<\/span> <span class=\"nc\">IOException<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"nc\">String<\/span> <span class=\"n\">path<\/span> <span class=\"o\">=<\/span> <span class=\"n\">args<\/span><span class=\"o\">[<\/span><span class=\"mi\">0<\/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\">print<\/span><span class=\"o\">(<\/span><span class=\"n\">readString11<\/span><span class=\"o\">(<\/span><span class=\"n\">path<\/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\">print<\/span><span class=\"o\">(<\/span><span class=\"n\">readString7<\/span><span class=\"o\">(<\/span><span class=\"n\">path<\/span><span class=\"o\">));<\/span>\r\n        <span class=\"c1\">\/\/ String.join \u306f Java 8 \u4ee5\u964d<\/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=\"nc\">String<\/span><span class=\"o\">.<\/span><span class=\"na\">join<\/span><span class=\"o\">(<\/span><span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">lineSeparator<\/span><span class=\"o\">(),<\/span> <span class=\"n\">readLines7<\/span><span class=\"o\">(<\/span><span class=\"n\">path<\/span><span class=\"o\">)));<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"cm\">\/**\r\n     * \u30c6\u30ad\u30b9\u30c8\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u8fbc\u307f\u307e\u3059\u3002Java 11 \u304b\u3089\u4f7f\u3048\u308b\u30e1\u30bd\u30c3\u30c9\u3002\r\n     * @param path \u8aad\u307f\u8fbc\u3080\u30d5\u30a1\u30a4\u30eb\u306e\u30d1\u30b9\r\n     * @return \u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9\r\n     * @throws IOException\r\n     * @throws OutOfMemoryError\r\n     * @throws RuntimeException\r\n     *\/<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"nc\">String<\/span> <span class=\"nf\">readString11<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">path<\/span><span class=\"o\">)<\/span> <span class=\"kd\">throws<\/span> <span class=\"nc\">IOException<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"nc\">Files<\/span><span class=\"o\">.<\/span><span class=\"na\">readString<\/span><span class=\"o\">(<\/span><span class=\"nc\">Path<\/span><span class=\"o\">.<\/span><span class=\"na\">of<\/span><span class=\"o\">(<\/span><span class=\"n\">path<\/span><span class=\"o\">),<\/span> <span class=\"nc\">Charset<\/span><span class=\"o\">.<\/span><span class=\"na\">forName<\/span><span class=\"o\">(<\/span><span class=\"s\">\"UTF-8\"<\/span><span class=\"o\">));<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"cm\">\/**\r\n     * \u30c6\u30ad\u30b9\u30c8\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u8fbc\u307f\u307e\u3059\u3002Java 7 \u304b\u3089\u4f7f\u3048\u308b\u30e1\u30bd\u30c3\u30c9\u3002\r\n     * @param path \u8aad\u307f\u8fbc\u3080\u30d5\u30a1\u30a4\u30eb\u306e\u30d1\u30b9\r\n     * @return \u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9\r\n     * @throws IOException\r\n     * @throws RuntimeException\r\n     *\/<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"nc\">String<\/span> <span class=\"nf\">readString7<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">path<\/span><span class=\"o\">)<\/span> <span class=\"kd\">throws<\/span> <span class=\"nc\">IOException<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"k\">new<\/span> <span class=\"nf\">String<\/span><span class=\"o\">(<\/span><span class=\"nc\">Files<\/span><span class=\"o\">.<\/span><span class=\"na\">readAllBytes<\/span><span class=\"o\">(<\/span><span class=\"nc\">Paths<\/span><span class=\"o\">.<\/span><span class=\"na\">get<\/span><span class=\"o\">(<\/span><span class=\"n\">path<\/span><span class=\"o\">)),<\/span> <span class=\"nc\">Charset<\/span><span class=\"o\">.<\/span><span class=\"na\">forName<\/span><span class=\"o\">(<\/span><span class=\"s\">\"UTF-8\"<\/span><span class=\"o\">));<\/span>\r\n    <span class=\"o\">}<\/span>\r\n\r\n    <span class=\"cm\">\/**\r\n     * \u30c6\u30ad\u30b9\u30c8\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u8fbc\u307f\u307e\u3059\u3002Java 7 \u304b\u3089\u4f7f\u3048\u308b\u30e1\u30bd\u30c3\u30c9\u3002\r\n     * @param path \u8aad\u307f\u8fbc\u3080\u30d5\u30a1\u30a4\u30eb\u306e\u30d1\u30b9\r\n     * @return \u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9\r\n     * @throws IOException\r\n     * @throws RuntimeException\r\n     *\/<\/span>\r\n    <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"nc\">List<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">String<\/span><span class=\"o\">&gt;<\/span> <span class=\"nf\">readLines7<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">path<\/span><span class=\"o\">)<\/span> <span class=\"kd\">throws<\/span> <span class=\"nc\">IOException<\/span> <span class=\"o\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"nc\">Files<\/span><span class=\"o\">.<\/span><span class=\"na\">readAllLines<\/span><span class=\"o\">(<\/span><span class=\"nc\">Paths<\/span><span class=\"o\">.<\/span><span class=\"na\">get<\/span><span class=\"o\">(<\/span><span class=\"n\">path<\/span><span class=\"o\">),<\/span> <span class=\"nc\">Charset<\/span><span class=\"o\">.<\/span><span class=\"na\">forName<\/span><span class=\"o\">(<\/span><span class=\"s\">\"UTF-8\"<\/span><span class=\"o\">));<\/span>\r\n    <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u6837\u672c\u6267\u884c\u7ed3\u679c<\/h2>\n<p>\u7f16\u8bd1\u3002<\/p>\n<pre class=\"post-pre\"><code>$ javac Cat.java\r\n<\/code><\/pre>\n<p>\u51c6\u5907\u4e00\u4e2a\u6587\u672c\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code>$ cat sample.txt \r\n\u3055\u3093\u3077\u308b\r\n\u30b5\u30f3\u30d7\u30eb\r\nSANNPURU\r\n<\/code><\/pre>\n<p>\u6267\u884c\u793a\u4f8b\u4ee3\u7801\u3002<\/p>\n<pre class=\"post-pre\"><code>$ java Cat sample.txt \r\n\u3055\u3093\u3077\u308b\r\n\u30b5\u30f3\u30d7\u30eb\r\nSANNPURU\r\n\u3055\u3093\u3077\u308b\r\n\u30b5\u30f3\u30d7\u30eb\r\nSANNPURU\r\n\u3055\u3093\u3077\u308b\r\n\u30b5\u30f3\u30d7\u30eb\r\nSANNPURU\r\n<\/code><\/pre>\n<h2>\u786e\u8ba4\u64cd\u4f5c\u73af\u5883<\/h2>\n<pre class=\"post-pre\"><code>$ java -version\r\njava version \"11.0.1\" 2018-10-16 LTS\r\nJava(TM) SE Runtime Environment 18.9 (build 11.0.1+13-LTS)\r\nJava HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.1+13-LTS, mixed mode)\r\n\r\n$ uname -mrsv\r\nDarwin 18.2.0 Darwin Kernel Version 18.2.0: Fri Oct  5 19:41:49 PDT 2018; root:xnu-4903.221.2~2\/RELEASE_X86_64 x86_64\r\n\r\n$ sw_vers\r\nProductName:    Mac OS X\r\nProductVersion: 10.14.1\r\nBuildVersion:   18B75\r\n<\/code><\/pre>\n<h2>\u8bf7\u67e5\u9605\u76f8\u5173\u8d44\u6599<\/h2>\n<ul class=\"post-ul\">\n<p>\u82f1\u8a9e\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9<\/p>\n<p>Files (Java SE 11 &#038; JDK 11 )<br \/>\nPath (Java SE 11 &#038; JDK 11 )<\/p>\n<p>\u65e5\u672c\u8a9e\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9<\/p>\n<p>Files (Java Platform SE 8 )<br \/>\nPaths (Java Platform SE 8 )<\/p>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u603b\u7ed3 Java 11 \u74b0\u5883\u3067\u306f Files.readString \u3068 Path.of \u3092\u4f7f\u7528 Java 7 \u74b0 [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-30965","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"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>\u4f7f\u7528Java 11\u548cJava 7\u53ef\u4ee5\u8f7b\u677e\u5730\u8bfb\u53d6\u6587\u672c\u6587\u4ef6 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" 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