{"id":933324,"date":"2024-12-26T18:13:47","date_gmt":"2024-12-26T10:13:47","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/933324.html"},"modified":"2024-12-26T18:13:49","modified_gmt":"2024-12-26T10:13:49","slug":"python%e5%a6%82%e4%bd%95%e8%ae%be%e7%bd%aejava","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/933324.html","title":{"rendered":"python\u5982\u4f55\u8bbe\u7f6ejava"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25070756\/f882c6ca-a600-4062-ad33-5a625d0b9916.webp\" alt=\"python\u5982\u4f55\u8bbe\u7f6ejava\" \/><\/p>\n<p><p> <strong>Python\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u4e0eJava\u8fdb\u884c\u4ea4\u4e92\u3001\u5b9e\u73b0\u8bed\u8a00\u95f4\u7684\u4e92\u64cd\u4f5c\u3001\u8c03\u7528Java\u4ee3\u7801\u3002<\/strong> \u5176\u4e2d\u4e00\u79cd\u5e38\u89c1\u7684\u65b9\u6cd5\u662f\u4f7f\u7528<code>JPype<\/code>\u5e93\u3002<code>JPype<\/code>\u5141\u8bb8Python\u7a0b\u5e8f\u8c03\u7528Java\u5e93\u548c\u7c7b\uff0c\u4ece\u800c\u5728Python\u4e2d\u6267\u884cJava\u4ee3\u7801\u5e76\u8bbf\u95eeJava\u5bf9\u8c61\u3002\u8981\u8bbe\u7f6e\u8fd9\u79cd\u73af\u5883\uff0c\u9996\u5148\u9700\u8981\u5b89\u88c5Java\u5f00\u53d1\u5de5\u5177\u5305\uff08JDK\uff09\u548c<code>JPype<\/code>\u5e93\u3002\u63a5\u4e0b\u6765\uff0c\u9700\u8981\u901a\u8fc7<code>startJVM()<\/code>\u51fd\u6570\u542f\u52a8Java\u865a\u62df\u673a\uff08JVM\uff09\uff0c\u7136\u540e\u901a\u8fc7Python\u4ee3\u7801\u8c03\u7528Java\u7c7b\u548c\u65b9\u6cd5\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u8bbe\u7f6e\u548c\u4f7f\u7528<code>JPype<\/code>\u6765\u5b9e\u73b0Python\u4e0eJava\u7684\u4ea4\u4e92\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001\u5b89\u88c5\u548c\u51c6\u5907\u5de5\u4f5c<\/p>\n<\/p>\n<p><p>\u5728\u4f7f\u7528<code>JPype<\/code>\u4e4b\u524d\uff0c\u9700\u8981\u786e\u4fdd\u5df2\u5b89\u88c5Java\u5f00\u53d1\u5de5\u5177\u5305\uff08JDK\uff09\u548cPython\u3002\u60a8\u53ef\u4ee5\u4eceOracle\u5b98\u65b9\u7f51\u7ad9\u4e0b\u8f7d\u5e76\u5b89\u88c5JDK\u3002\u786e\u4fdd\u5728\u7cfb\u7edf\u73af\u5883\u53d8\u91cf\u4e2d\u8bbe\u7f6e\u4e86<code>JAVA_HOME<\/code>\u548c<code>PATH<\/code>\uff0c\u4ee5\u4fbf\u80fd\u591f\u4ece\u547d\u4ee4\u884c\u8bbf\u95ee<code>javac<\/code>\u548c<code>java<\/code>\u547d\u4ee4\u3002<\/p>\n<\/p>\n<p><p>\u63a5\u4e0b\u6765\uff0c\u4f7f\u7528<code>pip<\/code>\u547d\u4ee4\u5b89\u88c5<code>JPype<\/code>\u5e93\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">pip install JPype1<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u786e\u4fdd<code>JPype<\/code>\u5e93\u6b63\u5e38\u5b89\u88c5\uff0c\u53ef\u4ee5\u5728Python\u4e2d\u5bfc\u5165\u5b83\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import jpype<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4e8c\u3001\u542f\u52a8Java\u865a\u62df\u673a\uff08JVM\uff09<\/p>\n<\/p>\n<p><p>\u8981\u5728Python\u4e2d\u4f7f\u7528Java\u7c7b\uff0c\u9996\u5148\u9700\u8981\u542f\u52a8Java\u865a\u62df\u673a\u3002<code>JPype<\/code>\u63d0\u4f9b\u4e86<code>startJVM()<\/code>\u51fd\u6570\u6765\u5b8c\u6210\u8fd9\u4e00\u64cd\u4f5c\u3002\u901a\u5e38\u9700\u8981\u6307\u5b9aJVM\u7684\u8def\u5f84\u548c\u4e00\u4e9b\u542f\u52a8\u9009\u9879\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import jpype<\/p>\n<p>import jpype.imports<\/p>\n<p>from jpype.types import *<\/p>\n<h2><strong>\u542f\u52a8JVM<\/strong><\/h2>\n<p>jpype.startJVM(classpath=[&#39;\/path\/to\/your\/java\/classes&#39;])<\/p>\n<h2><strong>\u68c0\u67e5JVM\u662f\u5426\u542f\u52a8<\/strong><\/h2>\n<p>if not jpype.isJVMStarted():<\/p>\n<p>    print(&quot;JVM\u542f\u52a8\u5931\u8d25&quot;)<\/p>\n<p>else:<\/p>\n<p>    print(&quot;JVM\u542f\u52a8\u6210\u529f&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>classpath<\/code>\u53c2\u6570\u6307\u5b9a\u4e86Java\u7c7b\u6587\u4ef6\u7684\u8def\u5f84\u3002\u786e\u4fdd\u8def\u5f84\u6b63\u786e\uff0c\u4ee5\u4fbfPython\u80fd\u591f\u627e\u5230\u5e76\u52a0\u8f7dJava\u7c7b\u3002<\/p>\n<\/p>\n<p><p>\u4e09\u3001\u8c03\u7528Java\u7c7b\u548c\u65b9\u6cd5<\/p>\n<\/p>\n<p><p>\u542f\u52a8JVM\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7Python\u4ee3\u7801\u8c03\u7528Java\u7c7b\u548c\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u5728Python\u4e2d\u4f7f\u7528Java\u7c7b\uff1a<\/p>\n<\/p>\n<p><p>\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u7b80\u5355\u7684Java\u7c7b<code>HelloWorld<\/code>\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-java\">public class HelloWorld {<\/p>\n<p>    public String getMessage() {<\/p>\n<p>        return &quot;Hello from Java!&quot;;<\/p>\n<p>    }<\/p>\n<p>}<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u53ef\u4ee5\u5728Python\u4e2d\u901a\u8fc7<code>JPype<\/code>\u8c03\u7528\u8fd9\u4e2a\u7c7b\u7684\u65b9\u6cd5\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u5bfc\u5165Java\u7c7b<\/p>\n<p>HelloWorld = jpype.JClass(&#39;HelloWorld&#39;)<\/p>\n<h2><strong>\u521b\u5efaJava\u5bf9\u8c61<\/strong><\/h2>\n<p>hello_world_instance = HelloWorld()<\/p>\n<h2><strong>\u8c03\u7528Java\u65b9\u6cd5<\/strong><\/h2>\n<p>message = hello_world_instance.getMessage()<\/p>\n<p>print(message)  # \u8f93\u51fa: Hello from Java!<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u56db\u3001\u5904\u7406Java\u5f02\u5e38\u548c\u6570\u636e\u7c7b\u578b<\/p>\n<\/p>\n<p><p>\u5728\u4f7f\u7528<code>JPype<\/code>\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230Java\u5f02\u5e38\u3002\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u6355\u83b7\u8fd9\u4e9b\u5f02\u5e38\u5e76\u8fdb\u884c\u5904\u7406\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">try:<\/p>\n<p>    # \u8c03\u7528\u53ef\u80fd\u5f15\u53d1\u5f02\u5e38\u7684Java\u4ee3\u7801<\/p>\n<p>    result = hello_world_instance.someMethod()<\/p>\n<p>except jpype.JException as ex:<\/p>\n<p>    print(f&quot;Caught a Java exception: {ex}&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><code>JPype<\/code>\u8fd8\u63d0\u4f9b\u4e86\u4e00\u4e9b\u5de5\u5177\u6765\u5904\u7406Java\u548cPython\u4e4b\u95f4\u7684\u6570\u636e\u7c7b\u578b\u8f6c\u6362\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528<code>JInt<\/code>\u3001<code>JDouble<\/code>\u7b49\u7c7b\u578b\u5728Python\u4e2d\u521b\u5efaJava\u57fa\u672c\u7c7b\u578b\u7684\u5b9e\u4f8b\u3002<\/p>\n<\/p>\n<p><p>\u4e94\u3001\u7ed3\u675fJVM<\/p>\n<\/p>\n<p><p>\u5728\u5b8c\u6210Java\u64cd\u4f5c\u540e\uff0c\u8bb0\u5f97\u5173\u95edJVM\u4ee5\u91ca\u653e\u8d44\u6e90\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">jpype.shutdownJVM()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u516d\u3001JPype\u7684\u9ad8\u7ea7\u529f\u80fd<\/p>\n<\/p>\n<p><p>\u9664\u4e86\u57fa\u672c\u7684Java\u7c7b\u8c03\u7528\uff0c<code>JPype<\/code>\u8fd8\u63d0\u4f9b\u4e86\u4e00\u4e9b\u9ad8\u7ea7\u529f\u80fd\uff0c\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<ul>\n<li><strong>\u4f7f\u7528Java\u63a5\u53e3<\/strong>\uff1a\u53ef\u4ee5\u5728Python\u4e2d\u5b9e\u73b0Java\u63a5\u53e3\uff0c\u4ece\u800c\u5728Java\u4ee3\u7801\u4e2d\u8c03\u7528Python\u65b9\u6cd5\u3002<\/li>\n<li><strong>\u591a\u7ebf\u7a0b\u652f\u6301<\/strong>\uff1a<code>JPype<\/code>\u652f\u6301\u5728Python\u7684\u591a\u7ebf\u7a0b\u73af\u5883\u4e2d\u8c03\u7528Java\u4ee3\u7801\u3002<\/li>\n<li><strong>Java\u96c6\u5408\u548c\u6570\u7ec4<\/strong>\uff1a\u53ef\u4ee5\u5728Python\u4e2d\u64cd\u4f5cJava\u96c6\u5408\u548c\u6570\u7ec4\uff0c\u5e76\u8fdb\u884c\u6570\u636e\u7c7b\u578b\u8f6c\u6362\u3002<\/li>\n<\/ul>\n<p><p>\u901a\u8fc7<code>JPype<\/code>\u5e93\uff0cPython\u7a0b\u5e8f\u53ef\u4ee5\u8f7b\u677e\u8c03\u7528Java\u4ee3\u7801\uff0c\u5b9e\u73b0\u8de8\u8bed\u8a00\u7684\u529f\u80fd\u534f\u4f5c\u3002\u8fd9\u4e3a\u5f00\u53d1\u4eba\u5458\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u7075\u6d3b\u6027\u548c\u53ef\u80fd\u6027\uff0c\u4f7f\u5f97Python\u548cJava\u53ef\u4ee5\u5728\u540c\u4e00\u4e2a\u9879\u76ee\u4e2d\u65e0\u7f1d\u534f\u4f5c\u3002\u65e0\u8bba\u662f\u8c03\u7528\u73b0\u6709\u7684Java\u5e93\uff0c\u8fd8\u662f\u5728Python\u4e2d\u5b9e\u73b0Java\u63a5\u53e3\uff0c<code>JPype<\/code>\u90fd\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u652f\u6301\u3002\u5e0c\u671b\u8fd9\u7bc7\u6587\u7ae0\u80fd\u5e2e\u52a9\u60a8\u6210\u529f\u8bbe\u7f6e\u548c\u4f7f\u7528Python\u4e0eJava\u7684\u4ea4\u4e92\u73af\u5883\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u8c03\u7528Java\u4ee3\u7801\uff1f<\/strong><br \/>\u5728Python\u4e2d\u8c03\u7528Java\u4ee3\u7801\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u5b9e\u73b0\u3002\u5e38\u89c1\u7684\u65b9\u6cd5\u5305\u62ec\u4f7f\u7528JPype\u3001Jython\u6216Py4J\u7b49\u5e93\u3002JPype\u5141\u8bb8Python\u4ee3\u7801\u76f4\u63a5\u8c03\u7528Java\u7c7b\u548c\u65b9\u6cd5\uff0c\u800cJython\u662f\u4e00\u4e2aPython\u5b9e\u73b0\uff0c\u53ef\u4ee5\u76f4\u63a5\u8fd0\u884cJava\u5b57\u8282\u7801\u3002Py4J\u5219\u662f\u4e00\u4e2a\u5141\u8bb8Python\u7a0b\u5e8f\u4e0eJava\u865a\u62df\u673a\uff08JVM\uff09\u8fdb\u884c\u901a\u4fe1\u7684\u5e93\u3002\u9009\u62e9\u5408\u9002\u7684\u5de5\u5177\u53d6\u51b3\u4e8e\u9879\u76ee\u7684\u9700\u6c42\u548c\u590d\u6742\u6027\u3002<\/p>\n<p><strong>\u5728Python\u4e2d\u8fd0\u884cJava\u7a0b\u5e8f\u9700\u8981\u54ea\u4e9b\u73af\u5883\u914d\u7f6e\uff1f<\/strong><br \/>\u4e3a\u4e86\u5728Python\u4e2d\u6210\u529f\u8fd0\u884cJava\u7a0b\u5e8f\uff0c\u9700\u8981\u786e\u4fdd\u5df2\u5b89\u88c5Java Development Kit (JDK) \u548c Python \u73af\u5883\u3002\u6b64\u5916\uff0c\u5fc5\u987b\u914d\u7f6eJava\u7684\u73af\u5883\u53d8\u91cf\uff0c\u4f7f\u5f97Python\u80fd\u591f\u627e\u5230Java\u53ef\u6267\u884c\u6587\u4ef6\u3002\u5728\u4f7f\u7528\u7279\u5b9a\u7684\u5e93\u5982JPype\u6216Py4J\u65f6\uff0c\u786e\u4fdd\u5b89\u88c5\u76f8\u5173\u7684Python\u5305\uff0c\u5e76\u6309\u7167\u5e93\u7684\u6587\u6863\u8fdb\u884c\u914d\u7f6e\u3002<\/p>\n<p><strong>\u5982\u4f55\u89e3\u51b3Python\u4e0eJava\u4ea4\u4e92\u65f6\u7684\u6027\u80fd\u95ee\u9898\uff1f<\/strong><br \/>Python\u4e0eJava\u7684\u4ea4\u4e92\u53ef\u80fd\u4f1a\u5f15\u5165\u4e00\u5b9a\u7684\u6027\u80fd\u5f00\u9500\u3002\u4e3a\u4e86\u4f18\u5316\u6027\u80fd\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528\u591a\u7ebf\u7a0b\u6216\u5f02\u6b65\u7f16\u7a0b\u6765\u5e76\u884c\u5904\u7406\u4efb\u52a1\u3002\u6b64\u5916\uff0c\u51cf\u5c11Python\u4e0eJava\u4e4b\u95f4\u7684\u8c03\u7528\u9891\u7387\u4e5f\u80fd\u663e\u8457\u63d0\u9ad8\u6027\u80fd\u3002\u5728\u4f7f\u7528\u5e93\u65f6\uff0c\u786e\u4fdd\u4f7f\u7528\u6700\u65b0\u7248\u672c\uff0c\u8bb8\u591a\u5e93\u5728\u65b0\u7248\u672c\u4e2d\u4f1a\u5bf9\u6027\u80fd\u8fdb\u884c\u4f18\u5316\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Python\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\u4e0eJava\u8fdb\u884c\u4ea4\u4e92\u3001\u5b9e\u73b0\u8bed\u8a00\u95f4\u7684\u4e92\u64cd\u4f5c\u3001\u8c03\u7528Java\u4ee3\u7801\u3002 \u5176\u4e2d\u4e00\u79cd\u5e38\u89c1\u7684\u65b9\u6cd5\u662f\u4f7f [&hellip;]","protected":false},"author":3,"featured_media":933331,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/933324"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=933324"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/933324\/revisions"}],"predecessor-version":[{"id":933333,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/933324\/revisions\/933333"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/933331"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=933324"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=933324"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=933324"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}