{"id":936587,"date":"2024-12-26T19:31:14","date_gmt":"2024-12-26T11:31:14","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/936587.html"},"modified":"2024-12-26T19:31:16","modified_gmt":"2024-12-26T11:31:16","slug":"python%e5%a6%82%e4%bd%95%e6%9e%84%e9%80%a0java","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/936587.html","title":{"rendered":"python\u5982\u4f55\u6784\u9020java"},"content":{"rendered":"

\"python\u5982\u4f55\u6784\u9020java\"<\/p>\n

Python\u65e0\u6cd5\u76f4\u63a5\u6784\u9020Java\u3001\u4f7f\u7528Jython\u5b9e\u73b0Python\u4e0eJava\u7684\u4e92\u64cd\u4f5c\u3001\u901a\u8fc7Java Native Interface\uff08JNI\uff09\u8c03\u7528Java\u4ee3\u7801\u3001\u5229\u7528Py4J\u5b9e\u73b0Python\u4e0eJava\u7684\u901a\u4fe1<\/strong>\u3002\u5176\u4e2d\uff0c\u4f7f\u7528Jython\u662f\u6700\u76f4\u63a5\u7684\u65b9\u6cd5\uff0c\u5b83\u662f\u4e00\u79cd\u8fd0\u884c\u5728Java\u5e73\u53f0\u4e0a\u7684Python\u5b9e\u73b0\uff0c\u5141\u8bb8\u5728Java\u865a\u62df\u673a\u4e0a\u8fd0\u884cPython\u4ee3\u7801\uff0c\u5e76\u65e0\u7f1d\u8bbf\u95eeJava\u7c7b\u5e93\u3002<\/p>\n<\/p>\n

Jython\u7684\u4e00\u4e2a\u91cd\u8981\u7279\u70b9\u662f\u5b83\u5b8c\u5168\u517c\u5bb9Java\uff0c\u8fd9\u610f\u5473\u7740\u53ef\u4ee5\u5728Python\u4ee3\u7801\u4e2d\u5bfc\u5165\u548c\u4f7f\u7528Java\u7c7b\uff0c\u5c31\u50cf\u4f7f\u7528Python\u6a21\u5757\u4e00\u6837\u3002\u8fd9\u4e3a\u9700\u8981\u540c\u65f6\u4f7f\u7528Python\u548cJava\u7684\u5f00\u53d1\u8005\u63d0\u4f9b\u4e86\u4e00\u79cd\u7075\u6d3b\u7684\u89e3\u51b3\u65b9\u6848\u3002\u901a\u8fc7Jython\uff0c\u53ef\u4ee5\u5728\u4e00\u4e2a\u9879\u76ee\u4e2d\u6df7\u5408\u4f7f\u7528Python\u7684\u7b80\u5355\u6027\u548cJava\u7684\u5f3a\u5927\u529f\u80fd\uff0c\u800c\u65e0\u9700\u5728\u8bed\u8a00\u4e4b\u95f4\u8fdb\u884c\u590d\u6742\u7684\u8f6c\u6362\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528JYTHON\u5b9e\u73b0PYTHON\u4e0eJAVA\u7684\u4e92\u64cd\u4f5c<\/p>\n<\/p>\n

Jython \u662f\u4e00\u79cd\u5728 Java \u5e73\u53f0\u4e0a\u8fd0\u884c Python \u7684\u5b9e\u73b0\u3002\u5b83\u5141\u8bb8\u5f00\u53d1\u8005\u5728 Java \u865a\u62df\u673a\u4e0a\u6267\u884c Python \u4ee3\u7801\uff0c\u5e76\u4f7f\u7528 Java \u7c7b\u5e93\u3002Jython \u662f Python \u7684\u4e00\u4e2a\u5b8c\u5168\u5b9e\u73b0\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u652f\u6301\u5927\u591a\u6570 Python \u8bed\u6cd5\u548c\u6807\u51c6\u5e93\u3002\u4f7f\u7528 Jython\uff0c\u53ef\u4ee5\u5728 Java \u9879\u76ee\u4e2d\u76f4\u63a5\u5d4c\u5165 Python \u4ee3\u7801\u3002<\/p>\n<\/p>\n

    \n
  1. \n

    Jython\u7684\u5b89\u88c5\u548c\u914d\u7f6e<\/strong><\/p>\n<\/p>\n

    \u8981\u4f7f\u7528 Jython\uff0c\u9996\u5148\u9700\u8981\u4e0b\u8f7d\u5e76\u5b89\u88c5\u5b83\u3002Jython \u53ef\u4ee5\u4ece\u5176\u5b98\u65b9\u7f51\u7ad9\u4e0b\u8f7d\uff0c\u5b89\u88c5\u8fc7\u7a0b\u76f8\u5bf9\u7b80\u5355\u3002\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u9700\u8981\u5c06 Jython \u7684\u76ee\u5f55\u6dfb\u52a0\u5230\u7cfb\u7edf\u7684\u73af\u5883\u53d8\u91cf\u4e2d\uff0c\u4ee5\u4fbf\u5728\u547d\u4ee4\u884c\u4e2d\u4f7f\u7528\u3002<\/p>\n<\/p>\n

    \u914d\u7f6e\u5b8c\u6210\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7\u547d\u4ee4\u884c\u8fdb\u5165 Jython \u7684\u4ea4\u4e92\u5f0f\u73af\u5883\uff0c\u76f4\u63a5\u8f93\u5165 Python \u4ee3\u7801\u5e76\u6267\u884c\u3002\u6b64\u5916\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7\u811a\u672c\u6587\u4ef6\u6765\u8fd0\u884c Python \u4ee3\u7801\u3002Jython \u8fd8\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7f16\u8bd1\u5668\uff0c\u53ef\u4ee5\u5c06 Python \u4ee3\u7801\u7f16\u8bd1\u4e3a Java \u5b57\u8282\u7801\u3002<\/p>\n<\/p>\n<\/li>\n

  2. \n

    \u5728Jython\u4e2d\u8c03\u7528Java\u7c7b<\/strong><\/p>\n<\/p>\n

    Jython \u7684\u4e00\u4e2a\u5f3a\u5927\u529f\u80fd\u662f\u80fd\u591f\u76f4\u63a5\u8c03\u7528 Java \u7c7b\u3002\u8fd9\u4f7f\u5f97\u5728 Python \u4ee3\u7801\u4e2d\u4f7f\u7528 Java \u7c7b\u53d8\u5f97\u975e\u5e38\u7b80\u5355\u3002\u53ef\u4ee5\u901a\u8fc7 import<\/code> \u8bed\u53e5\u5bfc\u5165 Java \u7c7b\uff0c\u5c31\u50cf\u4f7f\u7528 Python \u6a21\u5757\u4e00\u6837\u3002<\/p>\n<\/p>\n

    \u4f8b\u5982\uff0c\u8981\u4f7f\u7528 Java \u7684 ArrayList<\/code> \u7c7b\uff0c\u53ef\u4ee5\u8fd9\u6837\u505a\uff1a<\/p>\n<\/p>\n

    from java.util import ArrayList<\/p>\n
    list = ArrayList()<\/p>\n
    list.add("Hello")<\/p>\n
    list.add("World")<\/p>\n
    for item in list:<\/p>\n
        print(item)<\/p>\n
    <\/code><\/pre>\n<\/p>\n
    \u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u5728 Python \u4ee3\u7801\u4e2d\u4f7f\u7528\u4efb\u4f55 Java \u7c7b\uff0c\u5e76\u5229\u7528 Java \u7c7b\u5e93\u7684\u4e30\u5bcc\u529f\u80fd\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
    \u4e8c\u3001\u901a\u8fc7JAVA NATIVE INTERFACE\uff08JNI\uff09\u8c03\u7528JAVA\u4ee3\u7801<\/p>\n<\/p>\n
    Java Native Interface\uff08JNI\uff09\u662f\u4e00\u79cd\u6846\u67b6\uff0c\u5141\u8bb8 Java \u4ee3\u7801\u4e0e\u5176\u4ed6\u7f16\u7a0b\u8bed\u8a00\uff08\u5982 C\u3001C++\uff09\u7f16\u5199\u7684\u4ee3\u7801\u8fdb\u884c\u4ea4\u4e92\u3002\u867d\u7136 JNI \u4e3b\u8981\u7528\u4e8e Java \u548c C\/C++ \u4e4b\u95f4\u7684\u4ea4\u4e92\uff0c\u4f46\u4e5f\u53ef\u4ee5\u7528\u4e8e\u8c03\u7528\u5176\u4ed6\u8bed\u8a00\u7f16\u5199\u7684\u4ee3\u7801\u3002<\/p>\n<\/p>\n
      \n
    1. \n
      JNI\u7684\u57fa\u672c\u539f\u7406<\/strong><\/p>\n<\/p>\n
      JNI \u7684\u57fa\u672c\u539f\u7406\u662f\u901a\u8fc7 Java \u865a\u62df\u673a\u63d0\u4f9b\u7684\u63a5\u53e3\uff0c\u5c06 Java \u65b9\u6cd5\u548c\u672c\u5730\u65b9\u6cd5\u8fde\u63a5\u8d77\u6765\u3002Java \u4ee3\u7801\u53ef\u4ee5\u901a\u8fc7 JNI \u8c03\u7528\u672c\u5730\u65b9\u6cd5\uff0c\u800c\u672c\u5730\u65b9\u6cd5\u53ef\u4ee5\u8c03\u7528 Java \u65b9\u6cd5\u6216\u8bbf\u95ee Java \u5bf9\u8c61\u3002\u8fd9\u79cd\u65b9\u5f0f\u5141\u8bb8\u5728 Java \u4e2d\u4f7f\u7528\u5176\u4ed6\u8bed\u8a00\u5b9e\u73b0\u7684\u529f\u80fd\u3002<\/p>\n<\/p>\n<\/li>\n
    2. \n
      \u4f7f\u7528JNI\u8c03\u7528Java\u4ee3\u7801<\/strong><\/p>\n<\/p>\n
      \u8981\u5728 Python \u4e2d\u4f7f\u7528 JNI \u8c03\u7528 Java \u4ee3\u7801\uff0c\u9996\u5148\u9700\u8981\u7f16\u5199\u4e00\u4e2a Java \u7c7b\uff0c\u5e76\u5728\u5176\u4e2d\u58f0\u660e\u4e00\u4e2a\u672c\u5730\u65b9\u6cd5\u3002\u7136\u540e\uff0c\u9700\u8981\u7f16\u5199\u4e00\u4e2a C\/C++ \u7a0b\u5e8f\uff0c\u5b9e\u73b0\u8fd9\u4e2a\u672c\u5730\u65b9\u6cd5\u3002\u6700\u540e\uff0c\u901a\u8fc7 JNI \u5c06 Java \u7c7b\u548c C\/C++ \u7a0b\u5e8f\u8fde\u63a5\u8d77\u6765\u3002<\/p>\n<\/p>\n
      \u8fd9\u79cd\u65b9\u6cd5\u867d\u7136\u590d\u6742\uff0c\u4f46\u5728\u9700\u8981\u9ad8\u6027\u80fd\u6216\u4f7f\u7528\u7279\u5b9a\u786c\u4ef6\u529f\u80fd\u65f6\u975e\u5e38\u6709\u7528\u3002\u901a\u8fc7 JNI\uff0c\u53ef\u4ee5\u5728 Python \u4e2d\u4f7f\u7528 Java \u5b9e\u73b0\u7684\u529f\u80fd\uff0c\u800c\u65e0\u9700\u5728\u4e24\u79cd\u8bed\u8a00\u4e4b\u95f4\u8fdb\u884c\u590d\u6742\u7684\u8f6c\u6362\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
      \u4e09\u3001\u5229\u7528PY4J\u5b9e\u73b0PYTHON\u4e0eJAVA\u7684\u901a\u4fe1<\/p>\n<\/p>\n
      Py4J \u662f\u4e00\u4e2a\u5f00\u6e90\u9879\u76ee\uff0c\u5141\u8bb8 Python \u7a0b\u5e8f\u4e0e Java \u7a0b\u5e8f\u8fdb\u884c\u901a\u4fe1\u3002\u5b83\u901a\u8fc7\u7f51\u7edc\u5957\u63a5\u5b57\u8fde\u63a5\uff0c\u4f7f\u5f97 Python \u53ef\u4ee5\u8c03\u7528\u8fd0\u884c\u5728 Java \u865a\u62df\u673a\u4e2d\u7684 Java \u5bf9\u8c61\u548c\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
        \n
      1. \n
        Py4J\u7684\u57fa\u672c\u4f7f\u7528<\/strong><\/p>\n<\/p>\n
        \u4f7f\u7528 Py4J \u65f6\uff0c\u9996\u5148\u9700\u8981\u5728 Java \u7a0b\u5e8f\u4e2d\u542f\u52a8\u4e00\u4e2a\u7f51\u5173\u670d\u52a1\u5668\uff0c\u5e76\u5c06\u5e0c\u671b\u66b4\u9732\u7ed9 Python \u7684\u5bf9\u8c61\u6ce8\u518c\u5230\u670d\u52a1\u5668\u4e0a\u3002\u7136\u540e\uff0c\u5728 Python \u7a0b\u5e8f\u4e2d\uff0c\u4f7f\u7528 Py4J \u63d0\u4f9b\u7684\u7f51\u5173\u5ba2\u6237\u7aef\u8fde\u63a5\u5230\u670d\u52a1\u5668\uff0c\u5e76\u8c03\u7528 Java \u5bf9\u8c61\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
        \u4f8b\u5982\uff0c\u5047\u8bbe\u6709\u4e00\u4e2a\u7b80\u5355\u7684 Java \u7c7b\uff1a<\/p>\n<\/p>\n
        public class Example {<\/p>\n
            public String getMessage() {<\/p>\n
                return "Hello from Java!";<\/p>\n
            }<\/p>\n
        }<\/p>\n
        <\/code><\/pre>\n<\/p>\n
        \u53ef\u4ee5\u5728 Python \u4e2d\u8c03\u7528\u8be5\u7c7b\u7684\u65b9\u6cd5\uff1a<\/p>\n<\/p>\n
        from py4j.java_gateway import JavaGateway<\/p>\n
        gateway = JavaGateway()<\/p>\n
        example = gateway.entry_point.getExample()<\/p>\n
        print(example.getMessage())<\/p>\n
        <\/code><\/pre>\n<\/p>\n<\/li>\n
      2. \n
        Py4J\u7684\u4f18\u70b9\u4e0e\u5c40\u9650<\/strong><\/p>\n<\/p>\n
        Py4J \u7684\u4f18\u70b9\u5728\u4e8e\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u5355\u7684\u65b9\u5f0f\uff0c\u4f7f\u5f97 Python \u53ef\u4ee5\u8c03\u7528 Java \u65b9\u6cd5\uff0c\u800c\u65e0\u9700\u5bf9 Java \u4ee3\u7801\u8fdb\u884c\u4fee\u6539\u3002\u5b83\u652f\u6301\u5927\u591a\u6570 Java \u529f\u80fd\uff0c\u5305\u62ec\u8c03\u7528\u6784\u9020\u51fd\u6570\u3001\u65b9\u6cd5\u548c\u5b57\u6bb5\u3002<\/p>\n<\/p>\n
        \u7136\u800c\uff0cPy4J \u4e5f\u6709\u4e00\u4e9b\u5c40\u9650\u6027\u3002\u7531\u4e8e\u5b83\u57fa\u4e8e\u7f51\u7edc\u901a\u4fe1\uff0c\u6027\u80fd\u53ef\u80fd\u4e0d\u5982\u76f4\u63a5\u8c03\u7528\u672c\u5730\u65b9\u6cd5\u9ad8\u3002\u6b64\u5916\uff0cPy4J \u9700\u8981\u5728 Java \u548c Python \u4e4b\u95f4\u8fdb\u884c\u6570\u636e\u8f6c\u6362\uff0c\u8fd9\u53ef\u80fd\u5bfc\u81f4\u4e00\u4e9b\u590d\u6742\u7684\u6570\u636e\u7ed3\u6784\u96be\u4ee5\u5904\u7406\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
        \u56db\u3001\u5728PYTHON\u4e2d\u4f7f\u7528JAVA\u7c7b\u7684\u5176\u4ed6\u65b9\u6cd5<\/p>\n<\/p>\n
        \u9664\u4e86\u4e0a\u8ff0\u65b9\u6cd5\uff0c\u8fd8\u6709\u4e00\u4e9b\u5176\u4ed6\u65b9\u6cd5\u53ef\u4ee5\u5728 Python \u4e2d\u4f7f\u7528 Java \u7c7b\u3002\u8fd9\u4e9b\u65b9\u6cd5\u5404\u6709\u4f18\u7f3a\u70b9\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
          \n
        1. \n
          \u4f7f\u7528JPype<\/strong><\/p>\n<\/p>\n
          JPype \u662f\u4e00\u4e2a\u9879\u76ee\uff0c\u5141\u8bb8 Python \u7a0b\u5e8f\u76f4\u63a5\u8c03\u7528 Java \u7c7b\u3002\u5b83\u901a\u8fc7\u5d4c\u5165 Java \u865a\u62df\u673a\uff0c\u4f7f\u5f97 Python \u53ef\u4ee5\u4e0e Java \u8fdb\u884c\u4ea4\u4e92\u3002JPype \u7684\u4f18\u70b9\u5728\u4e8e\u5b83\u7b80\u5355\u6613\u7528\uff0c\u5e76\u4e14\u4e0d\u9700\u8981\u5bf9 Java \u4ee3\u7801\u8fdb\u884c\u4fee\u6539\u3002<\/p>\n<\/p>\n
          \u4f7f\u7528 JPype \u65f6\uff0c\u9996\u5148\u9700\u8981\u542f\u52a8 Java \u865a\u62df\u673a\uff0c\u7136\u540e\u53ef\u4ee5\u76f4\u63a5\u5bfc\u5165 Java \u7c7b\u5e76\u8c03\u7528\u5176\u65b9\u6cd5\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
          import jpype<\/p>\n
          jpype.startJVM()<\/p>\n
          String = jpype.JClass('java.lang.String')<\/p>\n
          java_string = String("Hello from Java!")<\/p>\n
          print(java_string.toString())<\/p>\n
          jpype.shutdownJVM()<\/p>\n
          <\/code><\/pre>\n<\/p>\n<\/li>\n
        2. \n
          \u4f7f\u7528JCC<\/strong><\/p>\n<\/p>\n
          JCC \u662f\u4e00\u4e2a\u751f\u6210 C++ \u4ee3\u7801\u7684\u5de5\u5177\uff0c\u4f7f\u5f97 Java \u7c7b\u53ef\u4ee5\u5728 Python \u4e2d\u4f7f\u7528\u3002\u5b83\u901a\u8fc7 JNI \u8c03\u7528 Java \u7c7b\uff0c\u5e76\u751f\u6210 Python \u6a21\u5757\u3002JCC \u7684\u4f18\u70b9\u5728\u4e8e\u5b83\u652f\u6301\u591a\u7ebf\u7a0b\uff0c\u5e76\u4e14\u53ef\u4ee5\u5c06 Java \u7c7b\u6253\u5305\u4e3a Python \u6a21\u5757\uff0c\u65b9\u4fbf\u5206\u53d1\u3002<\/p>\n<\/p>\n
          \u4f7f\u7528 JCC \u65f6\uff0c\u9700\u8981\u7f16\u5199\u4e00\u4e2a\u63cf\u8ff0 Java \u7c7b\u7684\u914d\u7f6e\u6587\u4ef6\uff0c\u7136\u540e\u4f7f\u7528 JCC \u5de5\u5177\u751f\u6210 Python \u6a21\u5757\u3002\u751f\u6210\u7684\u6a21\u5757\u53ef\u4ee5\u50cf\u666e\u901a Python \u6a21\u5757\u4e00\u6837\u5bfc\u5165\u548c\u4f7f\u7528\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n
          \u4e94\u3001\u5728\u5b9e\u9645\u9879\u76ee\u4e2d\u7684\u5e94\u7528\u573a\u666f<\/p>\n<\/p>\n
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