{"id":289,"date":"2024-01-03T03:09:07","date_gmt":"2023-01-16T06:27:22","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/%e5%91%bd%e4%bb%a4%e8%ae%be%e8%ae%a1%e6%a8%a1%e5%bc%8f\/"},"modified":"2025-08-01T03:21:04","modified_gmt":"2025-07-31T19:21:04","slug":"%e5%91%bd%e4%bb%a4%e8%ae%be%e8%ae%a1%e6%a8%a1%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%91%bd%e4%bb%a4%e8%ae%be%e8%ae%a1%e6%a8%a1%e5%bc%8f\/","title":{"rendered":"\u547d\u4ee4\u6a21\u5f0f\u8be6\u89e3\uff1a\u8bbe\u8ba1\u539f\u5219\u3001\u5e94\u7528\u573a\u666f\u4e0e\u6700\u4f73\u5b9e\u8df5"},"content":{"rendered":"<p>\u8fd9\u662f\u6587\u7ae0\u300a\u547d\u4ee4\u8bbe\u8ba1\u6a21\u5f0f\u300b\u7684\u7b2c1\u90e8\u5206\uff08\u51711\u90e8\u5206\uff09\u3002<\/p>\n<p><strong>\u547d\u4ee4\u6a21\u5f0f<\/strong>\u662f\u884c\u4e3a\u8bbe\u8ba1\u6a21\u5f0f\u4e4b\u4e00\u3002\u5b83\u4e3b\u8981\u7528\u4e8e\u5728\u8bf7\u6c42-\u54cd\u5e94\u6a21\u578b\u4e2d\u5b9e\u73b0\u677e\u8026\u5408\u3002<\/p>\n<h2>\u547d\u4ee4\u6a21\u5f0f\u8be6\u89e3<\/h2>\n<p>\u5728\u547d\u4ee4\u6a21\u5f0f\u4e2d\uff0c\u8bf7\u6c42\u88ab\u53d1\u9001\u7ed9\u8c03\u7528\u8005\uff08Invoker\uff09\uff0c\u8c03\u7528\u8005\u5c06\u5176\u4f20\u9012\u7ed9\u5c01\u88c5\u597d\u7684\u547d\u4ee4\u5bf9\u8c61\uff08Command\uff09\u3002\u547d\u4ee4\u5bf9\u8c61\u968f\u540e\u5c06\u8bf7\u6c42\u8f6c\u53d1\u7ed9\u63a5\u6536\u8005\uff08Receiver\uff09\u7684\u9002\u5f53\u65b9\u6cd5\uff0c\u4ee5\u6267\u884c\u7279\u5b9a\u7684\u64cd\u4f5c\u3002\u5ba2\u6237\u7aef\u7a0b\u5e8f\uff08Client\uff09\u9996\u5148\u521b\u5efa\u63a5\u6536\u8005\u5bf9\u8c61\uff0c\u5e76\u5c06\u5176\u7ed1\u5b9a\u5230\u547d\u4ee4\u5bf9\u8c61\u4e0a\u3002\u63a5\u7740\uff0c\u521b\u5efa\u8c03\u7528\u8005\u5bf9\u8c61\uff0c\u5e76\u5c06\u547d\u4ee4\u5bf9\u8c61\u9644\u52a0\u5230\u8c03\u7528\u8005\u4e0a\u4ee5\u6267\u884c\u64cd\u4f5c\u3002\u73b0\u5728\uff0c\u5f53\u5ba2\u6237\u7aef\u7a0b\u5e8f\u6267\u884c\u64cd\u4f5c\u65f6\uff0c\u5b83\u4f1a\u6839\u636e\u547d\u4ee4\u548c\u63a5\u6536\u8005\u5bf9\u8c61\u8fdb\u884c\u5904\u7406\u3002<\/p>\n<h3>\u547d\u4ee4\u8bbe\u8ba1\u6a21\u5f0f\u5b9e\u4f8b\u5206\u6790<\/h3>\n<p>\u6211\u4eec\u5c06\u901a\u8fc7\u4e00\u4e2a\u5b9e\u9645\u573a\u666f\u6765\u6f14\u793a\u547d\u4ee4\u6a21\u5f0f\u7684\u5b9e\u73b0\u3002\u5047\u8bbe\u6211\u4eec\u9700\u8981\u5f00\u53d1\u4e00\u4e2a\u6587\u4ef6\u7cfb\u7edf\u5de5\u5177\uff0c\u8be5\u5de5\u5177\u80fd\u591f\u6267\u884c\u6253\u5f00\u3001\u5199\u5165\u548c\u5173\u95ed\u6587\u4ef6\u7b49\u64cd\u4f5c\uff0c\u5e76\u4e14\u9700\u8981\u652f\u6301\u591a\u79cd\u64cd\u4f5c\u7cfb\u7edf\uff0c\u4f8b\u5982Windows\u548cUnix\u3002\u4e3a\u4e86\u5b9e\u73b0\u8fd9\u4e2a\u6587\u4ef6\u7cfb\u7edf\u5de5\u5177\uff0c\u6211\u4eec\u9996\u5148\u9700\u8981\u521b\u5efa\u63a5\u6536\u8005\u7c7b\uff0c\u5b83\u5c06\u5b9e\u9645\u6267\u884c\u6240\u6709\u6587\u4ef6\u64cd\u4f5c\u3002\u7531\u4e8e\u6211\u4eec\u5728Java\u4e2d\u4e60\u60ef\u4f7f\u7528\u63a5\u53e3\u8fdb\u884c\u7f16\u7a0b\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9a\u4e49\u4e00\u4e2a<code>FileSystemReceiver<\/code>\u63a5\u53e3\uff0c\u5e76\u4e3a\u5176\u5728Windows\u3001Unix\u3001Solaris\u7b49\u4e0d\u540c\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u63d0\u4f9b\u5177\u4f53\u7684\u5b9e\u73b0\u7c7b\u3002<\/p>\n<h3>\u547d\u4ee4\u6a21\u5f0f\u63a5\u6536\u8005\u7c7b\u5b9e\u73b0<\/h3>\n<pre class=\"post-pre\"><code>package com.Olivia.design.command;\r\n\r\npublic interface FileSystemReceiver {\r\n\tvoid openFile();\r\n\tvoid writeFile();\r\n\tvoid closeFile();\r\n}\r\n<\/code><\/pre>\n<p><code>FileSystemReceiver<\/code>\u63a5\u53e3\u5b9a\u4e49\u4e86\u5b9e\u73b0\u7c7b\u7684\u5951\u7ea6\u3002\u4e3a\u7b80\u5316\u793a\u4f8b\uff0c\u6211\u521b\u5efa\u4e86\u4e24\u4e2a\u63a5\u6536\u8005\u7c7b\uff0c\u5206\u522b\u7528\u4e8eUnix\u548cWindows\u7cfb\u7edf\u3002<\/p>\n<pre class=\"post-pre\"><code>package com.Olivia.design.command;\r\n\r\npublic class UnixFileSystemReceiver implements FileSystemReceiver {\r\n\r\n\t@Override\r\n\tpublic void openFile() {\r\n\t\tSystem.out.println(\"\u5728Unix\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u6253\u5f00\u6587\u4ef6\");\r\n\t}\r\n\r\n\t@Override\r\n\tpublic void writeFile() {\r\n\t\tSystem.out.println(\"\u5728Unix\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u5199\u5165\u6587\u4ef6\");\r\n\t}\r\n\r\n\t@Override\r\n\tpublic void closeFile() {\r\n\t\tSystem.out.println(\"\u5728Unix\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u5173\u95ed\u6587\u4ef6\");\r\n\t}\r\n}\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code>package com.Olivia.design.command;\r\n\r\npublic class WindowsFileSystemReceiver implements FileSystemReceiver {\r\n\r\n\t@Override\r\n\tpublic void openFile() {\r\n\t\tSystem.out.println(\"\u5728Windows\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u6253\u5f00\u6587\u4ef6\");\r\n\t}\r\n\r\n\t@Override\r\n\tpublic void writeFile() {\r\n\t\tSystem.out.println(\"\u5728Windows\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u5199\u5165\u6587\u4ef6\");\r\n\t}\r\n\r\n\t@Override\r\n\tpublic void closeFile() {\r\n\t\tSystem.out.println(\"\u5728Windows\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u5173\u95ed\u6587\u4ef6\");\r\n\t}\r\n}\r\n<\/code><\/pre>\n<p>\u4f60\u662f\u5426\u6ce8\u610f\u5230\u4e86<code>@Override<\/code>\u6ce8\u89e3\uff1f\u5982\u679c\u4f60\u60f3\u4e86\u89e3\u5b83\u7684\u7528\u9014\uff0c\u53ef\u4ee5\u67e5\u9605\u6709\u5173Java\u6ce8\u89e3\u53ca\u5176\u597d\u5904\u7684\u8d44\u6599\u3002\u73b0\u5728\uff0c\u6211\u4eec\u7684\u63a5\u6536\u8005\u7c7b\u5df2\u7ecf\u51c6\u5907\u5c31\u7eea\uff0c\u53ef\u4ee5\u5f00\u59cb\u5b9e\u73b0\u547d\u4ee4\u7c7b\u4e86\u3002<\/p>\n<h3>\u547d\u4ee4\u6a21\u5f0f\u63a5\u53e3\u4e0e\u5b9e\u73b0\u65b9\u6cd5<\/h3>\n<p>\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u63a5\u53e3\u6216\u62bd\u8c61\u7c7b\u6765\u521b\u5efa\u57fa\u7840\u547d\u4ee4\uff0c\u8fd9\u662f\u4e00\u4e2a\u8bbe\u8ba1\u51b3\u7b56\uff0c\u53d6\u51b3\u4e8e\u4f60\u7684\u5177\u4f53\u9700\u6c42\u3002\u6211\u4eec\u9009\u62e9\u4f7f\u7528\u63a5\u53e3\uff0c\u56e0\u4e3a\u6211\u4eec\u6ca1\u6709\u4efb\u4f55\u9ed8\u8ba4\u5b9e\u73b0\u3002<\/p>\n<pre class=\"post-pre\"><code>package com.Olivia.design.command;\r\n\r\npublic interface Command {\r\n\tvoid execute();\r\n}\r\n<\/code><\/pre>\n<p>\u73b0\u5728\uff0c\u6211\u4eec\u9700\u8981\u4e3a\u63a5\u6536\u8005\u6267\u884c\u7684\u6240\u6709\u4e0d\u540c\u7c7b\u578b\u7684\u64cd\u4f5c\u521b\u5efa\u5b9e\u73b0\u3002\u7531\u4e8e\u6211\u4eec\u6709\u4e09\u4e2a\u64cd\u4f5c\uff0c\u6211\u4eec\u5c06\u521b\u5efa\u4e09\u4e2a\u547d\u4ee4\u5b9e\u73b0\u3002\u6bcf\u4e2a\u547d\u4ee4\u5b9e\u73b0\u5c06\u8bf7\u6c42\u8f6c\u53d1\u7ed9\u63a5\u6536\u8005\u7684\u76f8\u5e94\u65b9\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code>package com.Olivia.design.command;\r\n\r\npublic class OpenFileCommand implements Command {\r\n\r\n\tprivate FileSystemReceiver fileSystem;\r\n\t\r\n\tpublic OpenFileCommand(FileSystemReceiver fs){\r\n\t\tthis.fileSystem = fs;\r\n\t}\r\n\t@Override\r\n\tpublic void execute() {\r\n\t\t\/\/ open\u547d\u4ee4\u5c06\u8bf7\u6c42\u8f6c\u53d1\u7ed9openFile\u65b9\u6cd5\r\n\t\tthis.fileSystem.openFile();\r\n\t}\r\n}\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code>package com.Olivia.design.command;\r\n\r\npublic class CloseFileCommand implements Command {\r\n\r\n\tprivate FileSystemReceiver fileSystem;\r\n\t\r\n\tpublic CloseFileCommand(FileSystemReceiver fs){\r\n\t\tthis.fileSystem = fs;\r\n\t}\r\n\t@Override\r\n\tpublic void execute() {\r\n\t\tthis.fileSystem.closeFile();\r\n\t}\r\n}\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code>package com.Olivia.design.command;\r\n\r\npublic class WriteFileCommand implements Command {\r\n\r\n\tprivate FileSystemReceiver fileSystem;\r\n\t\r\n\tpublic WriteFileCommand(FileSystemReceiver fs){\r\n\t\tthis.fileSystem = fs;\r\n\t}\r\n\t@Override\r\n\tpublic void execute() {\r\n\t\tthis.fileSystem.writeFile();\r\n\t}\r\n}\r\n<\/code><\/pre>\n<p>\u73b0\u5728\u6211\u4eec\u5df2\u7ecf\u51c6\u5907\u597d\u4e86\u63a5\u6536\u8005\u548c\u547d\u4ee4\u7684\u5b9e\u73b0\uff0c\u56e0\u6b64\u53ef\u4ee5\u5f00\u59cb\u5b9e\u73b0\u8c03\u7528\u8005\u7c7b\u3002<\/p>\n<h3>\u547d\u4ee4\u6a21\u5f0f\u8c03\u7528\u8005\u7c7b<\/h3>\n<p>\u8c03\u7528\u8005\uff08Invoker\uff09\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u7c7b\uff0c\u5b83\u5c01\u88c5\u4e86\u547d\u4ee4\u5e76\u5c06\u8bf7\u6c42\u4f20\u9012\u7ed9\u547d\u4ee4\u5bf9\u8c61\u6765\u5904\u7406\u3002<\/p>\n<pre class=\"post-pre\"><code>package com.Olivia.design.command;\r\n\r\npublic class FileInvoker {\r\n\r\n\tpublic Command command;\r\n\t\r\n\tpublic FileInvoker(Command c){\r\n\t\tthis.command = c;\r\n\t}\r\n\t\r\n\tpublic void execute(){\r\n\t\tthis.command.execute();\r\n\t}\r\n}\r\n<\/code><\/pre>\n<p>\u6211\u4eec\u7684\u6587\u4ef6\u7cfb\u7edf\u5de5\u5177\u5b9e\u73b0\u5df2\u7ecf\u51c6\u5907\u5c31\u7eea\uff0c\u6211\u4eec\u53ef\u4ee5\u5f00\u59cb\u7f16\u5199\u4e00\u4e2a\u7b80\u5355\u7684\u547d\u4ee4\u6a21\u5f0f\u5ba2\u6237\u7aef\u7a0b\u5e8f\u3002\u4f46\u5728\u6b64\u4e4b\u524d\uff0c\u6211\u5c06\u63d0\u4f9b\u4e00\u4e2a\u5b9e\u7528\u65b9\u6cd5\u6765\u521b\u5efa\u9002\u5f53\u7684<code>FileSystemReceiver<\/code>\u5bf9\u8c61\u3002\u7531\u4e8e\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528<code>System<\/code>\u7c7b\u6765\u83b7\u53d6\u64cd\u4f5c\u7cfb\u7edf\u4fe1\u606f\uff0c\u6211\u4eec\u5c06\u5229\u7528\u5b83\uff1b\u5426\u5219\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5de5\u5382\u6a21\u5f0f\u6839\u636e\u8f93\u5165\u8fd4\u56de\u9002\u5f53\u7684\u7c7b\u578b\u3002<\/p>\n<pre class=\"post-pre\"><code>package com.Olivia.design.command;\r\n\r\npublic class FileSystemReceiverUtil {\r\n\t\r\n\tpublic static FileSystemReceiver getUnderlyingFileSystem(){\r\n\t\t String osName = System.getProperty(\"os.name\");\r\n\t\t System.out.println(\"\u5e95\u5c42\u64cd\u4f5c\u7cfb\u7edf\u662f:\" + osName);\r\n\t\t if(osName.contains(\"Windows\")){\r\n\t\t\t return new WindowsFileSystemReceiver();\r\n\t\t }else{\r\n\t\t\t return new UnixFileSystemReceiver();\r\n\t\t }\r\n\t}\r\n}\r\n<\/code><\/pre>\n<p>\u73b0\u5728\u8ba9\u6211\u4eec\u8f6c\u5411\u521b\u5efa\u4e00\u4e2a\u4f7f\u7528\u6211\u4eec\u6587\u4ef6\u7cfb\u7edf\u5de5\u5177\u7684\u547d\u4ee4\u6a21\u5f0f\u793a\u4f8b\u5ba2\u6237\u7aef\u7a0b\u5e8f\u3002<\/p>\n<pre class=\"post-pre\"><code>package com.Olivia.design.command;\r\n\r\npublic class FileSystemClient {\r\n\r\n\tpublic static void main(String[] args) {\r\n\t\t\/\/ \u521b\u5efa\u63a5\u6536\u8005\u5bf9\u8c61\r\n\t\tFileSystemReceiver fs = FileSystemReceiverUtil.getUnderlyingFileSystem();\r\n\t\t\r\n\t\t\/\/ \u521b\u5efa\u547d\u4ee4\u5e76\u4e0e\u63a5\u6536\u8005\u5173\u8054\r\n\t\tOpenFileCommand openFileCommand = new OpenFileCommand(fs);\r\n\t\t\r\n\t\t\/\/ \u521b\u5efa\u8c03\u7528\u8005\u5e76\u4e0e\u547d\u4ee4\u5173\u8054\r\n\t\tFileInvoker file = new FileInvoker(openFileCommand);\r\n\t\t\r\n\t\t\/\/ \u5728\u8c03\u7528\u8005\u5bf9\u8c61\u4e0a\u6267\u884c\u64cd\u4f5c\r\n\t\tfile.execute();\r\n\t\t\r\n\t\tWriteFileCommand writeFileCommand = new WriteFileCommand(fs);\r\n\t\tfile = new FileInvoker(writeFileCommand);\r\n\t\tfile.execute();\r\n\t\t\r\n\t\tCloseFileCommand closeFileCommand = new CloseFileCommand(fs);\r\n\t\tfile = new FileInvoker(closeFileCommand);\r\n\t\tfile.execute();\r\n\t}\r\n}\r\n<\/code><\/pre>\n<p>\u8bf7\u6ce8\u610f\uff0c\u5ba2\u6237\u7aef\u8d1f\u8d23\u521b\u5efa\u9002\u5f53\u7c7b\u578b\u7684\u547d\u4ee4\u5bf9\u8c61\u3002\u4f8b\u5982\uff0c\u5982\u679c\u60a8\u60f3\u8981\u5199\u5165\u6587\u4ef6\uff0c\u5219\u4e0d\u5e94\u8be5\u521b\u5efa<code>CloseFileCommand<\/code>\u5bf9\u8c61\u3002\u5ba2\u6237\u7aef\u7a0b\u5e8f\u8fd8\u8d1f\u8d23\u5c06\u63a5\u6536\u8005\u9644\u52a0\u5230\u547d\u4ee4\uff0c\u7136\u540e\u5c06\u547d\u4ee4\u9644\u52a0\u5230\u8c03\u7528\u8005\u7c7b\u3002\u4e0a\u8ff0\u547d\u4ee4\u6a21\u5f0f\u793a\u4f8b\u7a0b\u5e8f\u7684\u8f93\u51fa\u4e3a\uff1a<\/p>\n<pre class=\"post-pre\"><code>\u5e95\u5c42\u64cd\u4f5c\u7cfb\u7edf\u662f:Mac OS X\r\n\u5728Unix\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u6253\u5f00\u6587\u4ef6\r\n\u5728Unix\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u5199\u5165\u6587\u4ef6\r\n\u5728Unix\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u5173\u95ed\u6587\u4ef6\r\n<\/code><\/pre>\n<h3>\u547d\u4ee4\u6a21\u5f0f\u7c7b\u56fe<\/h3>\n<p>\u4ee5\u4e0b\u662f\u6211\u4eec\u6587\u4ef6\u7cfb\u7edf\u5de5\u5177\u5b9e\u73b0\u7684\u7c7b\u56fe\u3002<\/p>\n<p><img decoding=\"async\" src=\"your_image_path_here\" alt=\"\u547d\u4ee4\u6a21\u5f0f\u7c7b\u56fe\"\/><\/p>\n<h3>\u547d\u4ee4\u6a21\u5f0f\u7684\u91cd\u8981\u8981\u70b9<\/h3>\n<ul 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