{"id":31053,"date":"2022-12-27T22:05:48","date_gmt":"2024-02-26T13:44:27","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8java%e4%b8%ad%e6%89%a7%e8%a1%8c%e9%99%a4%e4%ba%86java%e4%b9%8b%e5%a4%96%e7%9a%84%e6%8c%87%e4%bb%a4%e3%80%82\/"},"modified":"2025-08-12T22:04:47","modified_gmt":"2025-08-12T14:04:47","slug":"%e5%9c%a8java%e4%b8%ad%e6%89%a7%e8%a1%8c%e9%99%a4%e4%ba%86java%e4%b9%8b%e5%a4%96%e7%9a%84%e6%8c%87%e4%bb%a4%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8java%e4%b8%ad%e6%89%a7%e8%a1%8c%e9%99%a4%e4%ba%86java%e4%b9%8b%e5%a4%96%e7%9a%84%e6%8c%87%e4%bb%a4%e3%80%82\/","title":{"rendered":"\u5728Java\u4e2d\u6267\u884c\u9664\u4e86Java\u4e4b\u5916\u7684\u6307\u4ee4"},"content":{"rendered":"

\u4f7f\u7528\u7684\u7c7b\u548c\u65b9\u6cd5java.lang.Runtime#exec\u53ef\u4ee5\u88ab\u89e3\u91ca\u4e3a\u6267\u884c\u64cd\u4f5c\u3002<\/p>\n

\u7528\u8fd4\u56de\u7684java.lang.Process\u5bf9\u8c61\u6765\u5904\u7406\u7ed3\u679c\u3002<\/p>\n

\u4ee3\u7801\u793a\u4f8b (Code example)<\/p>\n
Process proc = Runtime.getRuntime().exec( \"java --version\" );\r\n<\/code><\/pre>\n
\u8fd9\u662f\u4e00\u4e2a\u5b9e\u65bd\u7684\u4f8b\u5b50<\/p>\n
jshell> Process proc = Runtime.getRuntime().exec( \"java --version\" );\r\nproc ==> Process[pid=19916, exitValue=\"not exited\"]\r\n\r\njshell> proc.exitValue();\r\n$2 ==> 0\r\n<\/code><\/pre>\n
\u8f93\u5165\u8f93\u51fa\u6ce8\u610f\u5230\u65b9\u6cd5\u540d\u662f\u4ece\u6267\u884cProcess\uff03exec\u7684\u65b9\u9762\u6765\u770b\u7684\u3002<\/p>\n
\u4ece\u6267\u884c\u8fc7\u7a0b\u4e2d\u7684\u8f93\u51fa<\/p>\n
    \n
  • \n
      Process#getInputStream<\/ul>\n<\/li>\n<\/ul>\n
       <\/p>\n
        \n
      • \n
          \u3000\u2192\u3000Process#exec\u3067\u5b9f\u884c\u3057\u305f\u30d7\u30ed\u30bb\u30b9\u304c\u6a19\u6e96\u51fa\u529b\u306b\u51fa\u529b\u3059\u308b\u5185\u5bb9\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306eInputStream\u3092\u53d6\u5f97<\/ul>\n<\/li>\n<\/ul>\n
           <\/p>\n
            \uff1c\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u4f8b\uff1e<\/ul>\n
            import<\/span> java.io.*<\/span>;<\/span>\r\n\r\nProcess<\/span> proc<\/span> =<\/span> Runtime<\/span>.<\/span>getRuntime<\/span>().<\/span>exec<\/span>(<\/span> \"java Hello\"<\/span> );<\/span>\r\nString<\/span> line<\/span> =<\/span> null<\/span>;<\/span>\r\n\r\ntry<\/span> (<\/span> var<\/span> buf<\/span> =<\/span> new<\/span> BufferedReader<\/span>(<\/span> new<\/span> InputStreamReader<\/span>(<\/span> proc<\/span>.<\/span>getInputStream<\/span>()<\/span> )<\/span> )<\/span> )<\/span> {<\/span>\r\n  while<\/span>(<\/span> (<\/span> line<\/span> =<\/span> buf<\/span>.<\/span>readLine<\/span>()<\/span> )<\/span> !=<\/span> null<\/span> )<\/span> System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span> line<\/span> );<\/span>\r\n}<\/span>\r\n\r\n#<\/span> Hello<\/span>.<\/span>java\u306e\u5185\u5bb9<\/span>\r\npublic<\/span> class<\/span> Hello<\/span> {<\/span>\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span> String<\/span>[]<\/span> args<\/span> )<\/span> {<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span> \"Hello, world!!\"<\/span> );<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n\r\n<\/code><\/pre>\n
            \u4ee5\u4e0b\u662f\uff1c\u7d50\u679c\uff1e\u7684\u4e2d\u6587\u7ffb\u8b6f\uff1a<\/p>\n
            Hello, world!!\r\n<\/code><\/pre>\n
              \n
            • \n
                Process#getErrorStream<\/ul>\n<\/li>\n<\/ul>\n
                 <\/p>\n
                  \n
                • \n
                    \u3000\u2192\u3000Process#exec\u3067\u5b9f\u884c\u3057\u305f\u30d7\u30ed\u30bb\u30b9\u304c\u6a19\u6e96\u30a8\u30e9\u30fc\u51fa\u529b\u306b\u51fa\u529b\u3059\u308b\u5185\u5bb9\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306e<\/ul>\n<\/li>\n<\/ul>\n
                     <\/p>\n
                      \u3000\u3000InputStream\u3092\u53d6\u5f97<\/ul>\n
                      \u4ee5\u4e0b\u662f\u4e00\u4e2a\u6e90\u4ee3\u7801\u7684\u793a\u4f8b\uff1a<\/p>\n
                      \u5047\u8bbeNotExist.java\u5e76\u4e0d\u5b58\u5728\u3002<\/p>\n
                      \r\nimport<\/span> java.io.*<\/span>;<\/span>\r\n\r\nProcess<\/span> proc<\/span> =<\/span> Runtime<\/span>.<\/span>getRuntime<\/span>().<\/span>exec<\/span>(<\/span> \"javac NotExist.java\"<\/span> );<\/span>\r\nString<\/span> line<\/span> =<\/span> null<\/span>;<\/span>\r\n\r\ntry<\/span> (<\/span> var<\/span> buf<\/span> =<\/span> new<\/span> BufferedReader<\/span>(<\/span> new<\/span> InputStreamReader<\/span>(<\/span> proc<\/span>.<\/span>getErrorStream<\/span>()<\/span> )<\/span> )<\/span> )<\/span> {<\/span>\r\n  while<\/span>(<\/span> (<\/span> line<\/span> =<\/span> buf<\/span>.<\/span>readLine<\/span>()<\/span> )<\/span> !=<\/span> null<\/span> )<\/span> System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span> line<\/span> );<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                      <\u7ed3\u679c> – (The result)<\/p>\n
                      \u30a8\u30e9\u30fc: \u30d5\u30a1\u30a4\u30eb\u304c\u898b\u3064\u304b\u308a\u307e\u305b\u3093: NotExist.java\r\n\u4f7f\u7528\u65b9\u6cd5: javac <options> <source files>\r\n\u4f7f\u7528\u53ef\u80fd\u306a\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u30ea\u30b9\u30c8\u306b\u3064\u3044\u3066\u306f\u3001--help\u3092\u4f7f\u7528\u3057\u307e\u3059\r\n<\/code><\/pre>\n
                      \u5411\u6267\u884c\u8fdb\u7a0b\u7684\u8f93\u5165<\/p>\n
                        \n
                      • \n
                          Process#getOutputStream<\/ul>\n<\/li>\n<\/ul>\n
                           <\/p>\n
                            \n
                          • \n
                              \u3000\u2192\u3000Process#exec\u3067\u5b9f\u884c\u3057\u305f\u30d7\u30ed\u30bb\u30b9\u306e\u6a19\u6e96\u5165\u529b\u3078\u60c5\u5831\u3092\u6e21\u3059\u305f\u3081\u306eOutputStream\u3092\u53d6\u5f97<\/ul>\n<\/li>\n<\/ul>\n
                               <\/p>\n
                                \uff1c\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u4f8b\uff1e<\/ul>\n
                                \r\nimport<\/span> java.io.*<\/span>;<\/span>\r\n\r\nProcess<\/span> proc<\/span> =<\/span> Runtime<\/span>.<\/span>getRuntime<\/span>().<\/span>exec<\/span>(<\/span> \"java -cp . SampleCode\"<\/span> );<\/span>\r\n\r\ntry<\/span> (<\/span> var<\/span> buf<\/span> =<\/span> new<\/span> BufferedWriter<\/span>(<\/span> new<\/span> OutputStreamWriter<\/span>(<\/span> proc<\/span>.<\/span>getOutputStream<\/span>()<\/span> )<\/span> )<\/span> )<\/span> {<\/span>\r\n     buf<\/span>.<\/span>write<\/span>(<\/span> \"3\"<\/span> );<\/span>\r\n     buf<\/span>.<\/span>newLine<\/span>();<\/span>\r\n     buf<\/span>.<\/span>write<\/span>(<\/span> \"5\"<\/span> );<\/span>\r\n     buf<\/span>.<\/span>newLine<\/span>();<\/span>\r\n}<\/span>\r\n\r\n\/\/ \u53d6\u5f97\u3057\u305f\u30d7\u30ed\u30bb\u30b9\u304b\u3089\u306e\u51fa\u529b\u5185\u5bb9\u3092\u8868\u793a<\/span>\r\ntry<\/span> (<\/span> var<\/span> buf<\/span> =<\/span> new<\/span> BufferedReader<\/span>(<\/span> new<\/span> InputStreamReader<\/span>(<\/span> proc<\/span>.<\/span>getInputStream<\/span>()<\/span> )<\/span> )<\/span> )<\/span> {<\/span>\r\n   while<\/span>(<\/span> (<\/span> line<\/span> =<\/span> buf<\/span>.<\/span>readLine<\/span>()<\/span> )<\/span> !=<\/span> null<\/span> )<\/span> System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span> line<\/span> );<\/span>\r\n}<\/span>\r\n\r\n\/\/ SampleCode.java\u306e\u5185\u5bb9<\/span>\r\nimport<\/span> java.io.BufferedReader<\/span>;<\/span>\r\nimport<\/span> java.io.InputStreamReader<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> SampleCode<\/span> {<\/span>\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span> String<\/span>[]<\/span> args<\/span> )<\/span> throws<\/span> Exception<\/span>{<\/span>\r\n        try<\/span> (<\/span> var<\/span> buf<\/span> =<\/span> new<\/span> BufferedReader<\/span>(<\/span>\r\n                new<\/span> InputStreamReader<\/span>(<\/span> System<\/span>.<\/span>in<\/span> )<\/span>\r\n                )<\/span> )<\/span> {<\/span>\r\n            int<\/span> x<\/span> =<\/span> Integer<\/span>.<\/span>parseInt<\/span>(<\/span> buf<\/span>.<\/span>readLine<\/span>()<\/span> );<\/span>\r\n            int<\/span> y<\/span> =<\/span> Integer<\/span>.<\/span>parseInt<\/span>(<\/span> buf<\/span>.<\/span>readLine<\/span>()<\/span> );<\/span>\r\n\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span> x<\/span> +<\/span> \"*\"<\/span> +<\/span> y<\/span> +<\/span> \"=\"<\/span> +<\/span> x<\/span>*<\/span>y<\/span> );<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                \uff1c\u7ed3\u679c\uff1e
                                \n\u7ed3\u679c<\/p>\n
                                3*5=15\r\n<\/code><\/pre>\n
                                \u5176\u4ed6<\/p>\n
                                  \n
                                • \n
                                    \u30d7\u30ed\u30bb\u30b9\u306e\u5b8c\u4e86\u3092\u5f85\u6a5f\u3059\u308b\u5834\u5408\u306f\u3001Process#waitFor\u3092\u5b9f\u884c\u3002<\/ul>\n<\/li>\n<\/ul>\n
                                     <\/p>\n
                                      \n
                                    • \n
                                        \u30d7\u30ed\u30bb\u30b9\u306e\u7d42\u4e86\u30b3\u30fc\u30c9\u306f\u3001Process#exitValue\u3067\u53d6\u5f97\u53ef\u80fd\u3002<\/ul>\n<\/li>\n<\/ul>\n
                                         <\/p>\n
                                          \u305f\u3060\u3057\u3001\u30d7\u30ed\u30bb\u30b9\u304c\u7d42\u4e86\u3057\u3066\u3044\u306a\u3044\u72b6\u614b\u3067exitValue\u3092\u547c\u3076\u3068\u4f8b\u5916\uff08java.lang.IllegalThreadStateException\uff09\u304c\u767a\u751f\u3059\u308b\u3002\uff08\u4e0b\u8a18\u53c2\u7167\uff09<\/ul>\n
                                          Exception in thread \"main\" java.lang.IllegalThreadStateException: process has not exited\r\n  at java.base\/java.lang.ProcessImpl.exitValue(ProcessImpl.java:478)\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
                                          \u4f7f\u7528\u7684\u7c7b\u548c\u65b9\u6cd5java.lang.Runtime#exec\u53ef\u4ee5\u88ab\u89e3\u91ca\u4e3a\u6267\u884c\u64cd\u4f5c\u3002 \u7528\u8fd4\u56de\u7684java.lang. […]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-31053","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"\n\u5728Java\u4e2d\u6267\u884c\u9664\u4e86Java\u4e4b\u5916\u7684\u6307\u4ee4 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8e\u5728Java\u4e2d\u6267\u884c\u9664\u4e86Java\u4e4b\u5916\u7684\u6307\u4ee4\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5728java\u4e2d\u6267\u884c\u9664\u4e86java\u4e4b\u5916\u7684\u6307\u4ee4\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5728Java\u4e2d\u6267\u884c\u9664\u4e86Java\u4e4b\u5916\u7684\u6307\u4ee4\" \/>\n<meta property=\"og:description\" content=\"\u5173\u4e8e\u5728Java\u4e2d\u6267\u884c\u9664\u4e86Java\u4e4b\u5916\u7684\u6307\u4ee4\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5728java\u4e2d\u6267\u884c\u9664\u4e86java\u4e4b\u5916\u7684\u6307\u4ee4\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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