{"id":30984,"date":"2023-11-08T21:52:35","date_gmt":"2023-10-15T15:32:34","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8java8%e4%b8%8a%e8%bf%90%e8%a1%8cjavascript\/"},"modified":"2025-08-12T21:43:33","modified_gmt":"2025-08-12T13:43:33","slug":"%e5%9c%a8java8%e4%b8%8a%e8%bf%90%e8%a1%8cjavascript","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8java8%e4%b8%8a%e8%bf%90%e8%a1%8cjavascript\/","title":{"rendered":"\u5728Java8\u4e0a\u8fd0\u884cJavaScript"},"content":{"rendered":"<h1>\u76ee\u6807<\/p>\n<ul class=\"post-ul\">\u3010\u8ffd\u8a18\u3011Java 8 \u3067\u8ffd\u52a0\u3055\u308c\u305f\u4ee5\u4e0b\u306e\u6a5f\u80fd\u3067\u3059\u304c\u3001Java 11 \u3067\u5ec3\u6b62\u3055\u308c\u307e\u3057\u305f\u3002<\/ul>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Java6 \u3042\u305f\u308a\u304b\u3089\u3001Java\u5185\u306bJavaScript\u30a8\u30f3\u30b8\u30f3(Rhino)\u304c\u8ffd\u52a0\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Java8 \u3067\u306fJavaScript\u30a8\u30f3\u30b8\u30f3(Nashorn)\u306e\u6027\u80fd\u304c\u5411\u4e0a\u3057\u305f\u3068\u3044\u3046\u8a71\u306a\u306e\u3067\u3001\u3044\u307e\u3055\u3089\u306a\u304c\u3089\u5c11\u3057\u52d5\u304b\u3057\u3066\u307f\u307e\u3057\u305f<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u3067\u3082\u6027\u80fd\u6e2c\u5b9a\u3068\u304b\u306f\u3057\u307e\u305b\u3093<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30e1\u30bd\u30c3\u30c9\u306e\u8a73\u7d30\u306a\u8aac\u660e\u3082\u3057\u306a\u3044\u3067\u3059<\/ul>\n<h1>\u7b80\u8981\u4ecb\u7ecd\u5728Java\u4e2d\u652f\u6301JavaScript\u6709\u4e24\u79cd\u65b9\u5f0f\uff1a\u4e00\u79cd\u662f\u901a\u8fc7javax.script\u5305\u6765\u5904\u7406\u7684\u5e93\uff0c\u53e6\u4e00\u79cd\u662f\u547d\u4ee4\u884c\u7248\u672c\u3002<\/p>\n<p>\u76ee\u524d\u770b\u6765\uff0c\u867d\u7136\u4f3c\u4e4e\u6709\u8ba1\u5212\u652f\u6301\u9664\u4e86 JavaScript \u4e4b\u5916\u7684\u811a\u672c\u8bed\u8a00\uff0c\u4f46\u5b9e\u9645\u4e0a\u76ee\u524d\u53ea\u652f\u6301 JavaScript\u3002<\/p>\n<h2>\u547d\u4ee4\u884c\u7248\u672c\u547d\u4ee4\u884c\u7248\u672c\u5728Java6\u548cJava7\u4e2d\uff0cJDK\u7684bin\u76ee\u5f55\u4e0b\u6709\u4e00\u4e2a\u540d\u4e3ajrunscript\u7684\u547d\u4ee4\u3002\u770b\u8d77\u6765\u5728Java8\u4e2d\u8fd9\u4e2a\u547d\u4ee4\u4ecd\u7136\u5b58\u5728\u3002<\/p>\n<p>\u4eceJava8\u5f00\u59cb\uff0cJRE\u7684bin\u76ee\u5f55\u4e2d\u6dfb\u52a0\u4e86\u4e00\u4e2a\u540d\u4e3ajjs\u7684\u547d\u4ee4\u3002<br \/>\n\u5b83\u662f\u5426\u53ef\u4ee5\u5728\u4f7f\u7528\u73af\u5883\uff08JRE\uff09\u800c\u4e0d\u662f\u5f00\u53d1\u73af\u5883\uff08JDK\uff09\u4e2d\u4f7f\u7528\u5462\uff1f<\/p>\n<p>\u6211\u8fd9\u6b21\u6ca1\u6709\u89e6\u78b0\u8fc7\u3002<\/p>\n<h2>\u8bf7\u5c06\u4ee5\u4e0b\u5185\u5bb9\u7528\u4e2d\u6587\u8fdb\u884c\u91ca\u4e49\uff1ajavax.script \u5305<\/p>\n<p>\u53ef\u4ee5\u4ece JavaScript \u6e90\u4ee3\u7801\u7684\u5b57\u7b26\u4e32\u4e2d\u6267\u884c\uff08\u4e5f\u53ef\u4ee5\u4ece\u6587\u4ef6\u4e2d\u8bfb\u53d6\u5e76\u6267\u884c\uff09\u3002<\/p>\n<p>\u53e6\u5916\uff0c\u60a8\u8fd8\u53ef\u4ee5\u4f7f\u7528Java\u548cJavaScript\u8fdb\u884c\u6570\u636e\u4ea4\u6362\u548c\u65b9\u6cd5\u8c03\u7528\u7b49\u64cd\u4f5c\u3002<\/p>\n<h1>\u793a\u4f8b\u6e90\u4ee3\u7801\u66ab\u6642\u5148\u8a66\u8457\u904b\u884c\u4e86\u4e00\u4e0b\uff0c\u4f8b\u5916\u8655\u7406\u88ab\u5ffd\u7565\u4e86\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">package<\/span> <span class=\"nn\">test.javascript<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">java.util.Date<\/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=\"kn\">import<\/span> <span class=\"nn\">javax.script.Invocable<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">javax.script.ScriptEngine<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">javax.script.ScriptEngineFactory<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">javax.script.ScriptEngineManager<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"cm\">\/** Java \u3068 JavaScript \u306e\u9023\u643a *\/<\/span>\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">JavaScriptTest<\/span> <span class=\"o\">{<\/span>\r\n\r\n\t<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\">Exception<\/span> <span class=\"o\">{<\/span>\r\n\t\t<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\">\"java.version: \"<\/span> <span class=\"o\">+<\/span> <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">getProperty<\/span><span class=\"o\">(<\/span><span class=\"s\">\"java.version\"<\/span><span class=\"o\">));<\/span>\r\n\r\n        <span class=\"c1\">\/\/ \u5bfe\u5fdc\u3057\u3066\u3044\u308b ScriptEngine \u306e\u60c5\u5831\u3092\u51fa\u529b<\/span>\r\n\t\t<span class=\"nc\">ScriptEngineManager<\/span> <span class=\"n\">manager<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">ScriptEngineManager<\/span><span class=\"o\">();<\/span>\r\n\t\t<span class=\"nc\">List<\/span><span class=\"o\">&lt;<\/span><span class=\"nc\">ScriptEngineFactory<\/span><span class=\"o\">&gt;<\/span> <span class=\"n\">engineFactories<\/span> <span class=\"o\">=<\/span> <span class=\"n\">manager<\/span><span class=\"o\">.<\/span><span class=\"na\">getEngineFactories<\/span><span class=\"o\">();<\/span>\r\n\t\t<span class=\"k\">for<\/span> <span class=\"o\">(<\/span><span class=\"nc\">ScriptEngineFactory<\/span> <span class=\"n\">factory<\/span> <span class=\"o\">:<\/span> <span class=\"n\">engineFactories<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n\t\t\t<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\">\"Engine: \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">factory<\/span><span class=\"o\">.<\/span><span class=\"na\">getEngineName<\/span><span class=\"o\">()<\/span>\r\n\t\t\t\t\t<span class=\"o\">+<\/span> <span class=\"s\">\", Version: \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">factory<\/span><span class=\"o\">.<\/span><span class=\"na\">getEngineVersion<\/span><span class=\"o\">());<\/span>\r\n\t\t\t<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\">\"Language: \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">factory<\/span><span class=\"o\">.<\/span><span class=\"na\">getLanguageName<\/span><span class=\"o\">()<\/span>\r\n\t\t\t\t\t<span class=\"o\">+<\/span> <span class=\"s\">\", Version: \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">factory<\/span><span class=\"o\">.<\/span><span class=\"na\">getLanguageVersion<\/span><span class=\"o\">());<\/span>\r\n\t\t\t<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\">\"Extensions: \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">factory<\/span><span class=\"o\">.<\/span><span class=\"na\">getExtensions<\/span><span class=\"o\">());<\/span>\r\n\t\t\t<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\">\"MimeTypes: \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">factory<\/span><span class=\"o\">.<\/span><span class=\"na\">getMimeTypes<\/span><span class=\"o\">());<\/span>\r\n\t\t\t<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\">\"Names: \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">factory<\/span><span class=\"o\">.<\/span><span class=\"na\">getNames<\/span><span class=\"o\">());<\/span>\r\n\t\t\t<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>\r\n\t\t<span class=\"o\">}<\/span>\r\n\t\t<span class=\"nc\">ScriptEngine<\/span> <span class=\"n\">engine<\/span> <span class=\"o\">=<\/span> <span class=\"n\">manager<\/span><span class=\"o\">.<\/span><span class=\"na\">getEngineByName<\/span><span class=\"o\">(<\/span><span class=\"s\">\"JavaScript\"<\/span><span class=\"o\">);<\/span>\r\n\r\n\t\t<span class=\"c1\">\/\/ JavaScript \u306e\u5b9f\u884c<\/span>\r\n\t\t<span class=\"n\">engine<\/span><span class=\"o\">.<\/span><span class=\"na\">eval<\/span><span class=\"o\">(<\/span><span class=\"s\">\"var message = 'Hello, I am JavaScript.'\"<\/span><span class=\"o\">);<\/span>\r\n\t\t<span class=\"n\">engine<\/span><span class=\"o\">.<\/span><span class=\"na\">eval<\/span><span class=\"o\">(<\/span><span class=\"s\">\"print('#1: ' + message)\"<\/span><span class=\"o\">);<\/span>\r\n\r\n\t\t<span class=\"c1\">\/\/ Java \u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092 JavaScript \u306b\u6e21\u3057\u3066\u307f\u308b<\/span>\r\n\t\t<span class=\"n\">engine<\/span><span class=\"o\">.<\/span><span class=\"na\">put<\/span><span class=\"o\">(<\/span><span class=\"s\">\"message2\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"Hello, I am Java8.\"<\/span><span class=\"o\">);<\/span>\r\n\t\t<span class=\"n\">engine<\/span><span class=\"o\">.<\/span><span class=\"na\">put<\/span><span class=\"o\">(<\/span><span class=\"s\">\"today\"<\/span><span class=\"o\">,<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">Date<\/span><span class=\"o\">());<\/span>\r\n\t\t<span class=\"n\">engine<\/span><span class=\"o\">.<\/span><span class=\"na\">eval<\/span><span class=\"o\">(<\/span><span class=\"s\">\"print('#2: ' + message2 + ' now : ' + today.toString())\"<\/span><span class=\"o\">);<\/span>\r\n\r\n\t\t<span class=\"c1\">\/\/ JavaScript \u304b\u3089 Java \u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528<\/span>\r\n\t\t<span class=\"n\">engine<\/span><span class=\"o\">.<\/span><span class=\"na\">eval<\/span><span class=\"o\">(<\/span><span class=\"s\">\"var obj = Java.type('test.javascript.JavaScriptTest');\"<\/span>\r\n\t\t\t\t<span class=\"o\">+<\/span> <span class=\"s\">\"print('#3: ' + obj.getMessage());\"<\/span><span class=\"o\">);<\/span>\r\n\t\t<span class=\"n\">engine<\/span><span class=\"o\">.<\/span><span class=\"na\">eval<\/span><span class=\"o\">(<\/span><span class=\"s\">\"obj.printMessage('Good afternoon.');\"<\/span><span class=\"o\">);<\/span>\r\n\r\n\t\t<span class=\"c1\">\/\/ Java \u304b\u3089 JavaScript \u306e\u5024\u3092\u53d6\u5f97<\/span>\r\n\t\t<span class=\"n\">engine<\/span><span class=\"o\">.<\/span><span class=\"na\">eval<\/span><span class=\"o\">(<\/span><span class=\"s\">\"var message3 = 'Good evening.';\"<\/span><span class=\"o\">);<\/span>\r\n\t\t<span class=\"nc\">Object<\/span> <span class=\"n\">message3<\/span> <span class=\"o\">=<\/span> <span class=\"n\">engine<\/span><span class=\"o\">.<\/span><span class=\"na\">get<\/span><span class=\"o\">(<\/span><span class=\"s\">\"message3\"<\/span><span class=\"o\">);<\/span>\r\n\t\t<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\">\"#5: \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">message3<\/span><span class=\"o\">);<\/span>\r\n\r\n\t\t<span class=\"c1\">\/\/ Java \u304b\u3089 JavaScript \u306e\u95a2\u6570\u3092\u547c\u3073\u51fa\u3057<\/span>\r\n\t\t<span class=\"k\">if<\/span> <span class=\"o\">(<\/span><span class=\"n\">engine<\/span> <span class=\"k\">instanceof<\/span> <span class=\"nc\">Invocable<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n\t\t\t<span class=\"nc\">Invocable<\/span> <span class=\"n\">invocable<\/span> <span class=\"o\">=<\/span> <span class=\"o\">(<\/span><span class=\"nc\">Invocable<\/span><span class=\"o\">)<\/span> <span class=\"n\">engine<\/span><span class=\"o\">;<\/span>\r\n\t\t\t<span class=\"n\">engine<\/span><span class=\"o\">.<\/span><span class=\"na\">eval<\/span><span class=\"o\">(<\/span><span class=\"s\">\"var func = function(arg) { print('#6: ' + arg);}\"<\/span><span class=\"o\">);<\/span>\r\n\t\t\t<span class=\"n\">invocable<\/span><span class=\"o\">.<\/span><span class=\"na\">invokeFunction<\/span><span class=\"o\">(<\/span><span class=\"s\">\"func\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"Good night.\"<\/span><span class=\"o\">);<\/span>\r\n\t\t<span class=\"o\">}<\/span>\r\n\t<span class=\"o\">}<\/span>\r\n\r\n\t<span class=\"cm\">\/** \u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8fd4\u3059 *\/<\/span>\r\n\t<span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"nc\">String<\/span> <span class=\"nf\">getMessage<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n\t\t<span class=\"k\">return<\/span> <span class=\"s\">\"Good morning.\"<\/span><span class=\"o\">;<\/span>\r\n\t<span class=\"o\">}<\/span>\r\n\r\n\t<span class=\"cm\">\/** \u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u51fa\u529b *\/<\/span>\r\n\t<span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">printMessage<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">message<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n\t\t<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\">\"#4: \"<\/span> <span class=\"o\">+<\/span> <span class=\"n\">message<\/span><span class=\"o\">);<\/span>\r\n\t<span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<p>\u52a8\u4f5c\u7684\u7ed3\u679c\u5c31\u662f\u8fd9\u6837\u7684\u611f\u89c9\u3002<\/p>\n<pre class=\"post-pre\"><code>java.version: 1.8.0_65\r\nEngine: Oracle Nashorn, Version: 1.8.0_65\r\nLanguage: ECMAScript, Version: ECMA - 262 Edition 5.1\r\nExtensions: [js]\r\nMimeTypes: [application\/javascript, application\/ecmascript, text\/javascript, text\/ecmascript]\r\nNames: [nashorn, Nashorn, js, JS, JavaScript, javascript, ECMAScript, ecmascript]\r\n\r\n#1: Hello, I am JavaScript.\r\n#2: Hello, I am Java8. now : Thu Nov 05 22:51:09 JST 2015\r\n#3: Good morning.\r\n#4: Good afternoon.\r\n#5: Good evening.\r\n#6: Good night.\r\n<\/code><\/pre>\n<h1>\u6d82\u9e26 (Tu2 ya1)<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Rhino \u306e\u8aad\u307f\u306f\u300c\u30e9\u30a4\u30ce\u30fc\u300d\u3067\u3001\u82f1\u8a9e\u3067\u7280\u306e\u3053\u3068<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Nashorn \u306e\u3088\u307f\u306f\u300c\u30ca\u30fc\u30b9\u30db\u30eb\u30f3\u300d\u3067\u30c9\u30a4\u30c4\u8a9e\u3067\u7280\u306e\u3053\u3068<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30cd\u30bf\u5143\u306f\u30aa\u30e9\u30a4\u30ea\u30fc\u306eJavaScript\u672c\u306a\u3093\u3067\u3057\u3087\u3046\u306d<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u76ee\u6807 \u3010\u8ffd\u8a18\u3011Java 8 \u3067\u8ffd\u52a0\u3055\u308c\u305f\u4ee5\u4e0b\u306e\u6a5f\u80fd\u3067\u3059\u304c\u3001Java 11 \u3067\u5ec3\u6b62\u3055\u308c\u307e\u3057\u305f\u3002 Java6 \u3042\u305f [&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-30984","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium 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