{"id":253474,"date":"2024-05-15T10:21:13","date_gmt":"2024-05-15T02:21:13","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/253474.html"},"modified":"2024-05-15T10:21:17","modified_gmt":"2024-05-15T02:21:17","slug":"java%e4%bb%a3%e7%a0%81%e6%98%af%e5%a6%82%e4%bd%95%e6%89%a7%e8%a1%8c%e7%9a%84","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/253474.html","title":{"rendered":"java\u4ee3\u7801\u662f\u5982\u4f55\u6267\u884c\u7684"},"content":{"rendered":"

\"java\u4ee3\u7801\u662f\u5982\u4f55\u6267\u884c\u7684\"<\/p>\n

Java\u4ee3\u7801\u7684\u6267\u884c\u8fc7\u7a0b\u4e3b\u8981\u5305\u62ec\u5982\u4e0b\u51e0\u4e2a\u6b65\u9aa4\uff1a\u6e90\u4ee3\u7801\u7f16\u5199\u3001\u7f16\u8bd1\u3001\u7c7b\u52a0\u8f7d\u3001\u6267\u884c<\/strong>\u3002\u9996\u5148\uff0c\u5f00\u53d1\u4eba\u5458\u4f7f\u7528\u6587\u672c\u7f16\u8f91\u5668\u7f16\u5199Java\u6e90\u4ee3\u7801\uff0c\u5e76\u5c06\u5176\u4fdd\u5b58\u4e3a.java<\/code>\u6587\u4ef6\u3002\u968f\u540e\uff0cJava\u7f16\u8bd1\u5668\u5c06\u6e90\u6587\u4ef6\u7f16\u8bd1\u6210.class<\/code>\u6587\u4ef6\uff0c\u5176\u4e2d\u5305\u542bJava\u865a\u62df\u673a\u53ef\u4ee5\u7406\u89e3\u7684\u5b57\u8282\u7801\u3002\u7d27\u63a5\u7740\uff0c\u5f53\u8fd0\u884c\u7a0b\u5e8f\u65f6\uff0c\u7c7b\u52a0\u8f7d\u5668\u5c06\u8fd9\u4e9b.class<\/code>\u6587\u4ef6\u52a0\u8f7d\u5230Java\u865a\u62df\u673a\uff08JVM\uff09\u4e2d\u3002\u6700\u540e\uff0cJVM\u6267\u884c\u5b57\u8282\u7801\uff0c\u8868\u73b0\u4e3a\u7a0b\u5e8f\u8fd0\u884c\u7684\u8fc7\u7a0b\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u6e90\u4ee3\u7801\u7f16\u5199<\/h3>\n<\/p>\n

Java\u7a0b\u5e8f\u7684\u6267\u884c\u59cb\u4e8e\u6e90\u4ee3\u7801\u7684\u7f16\u5199\u3002\u7a0b\u5e8f\u5458\u4f7f\u7528Java\u8bed\u8a00\u6839\u636e\u9700\u6c42\u903b\u8f91\u7f16\u5199\u51fa\u5177\u6709\u826f\u597d\u7ed3\u6784\u7684\u4ee3\u7801\u3002\u6e90\u4ee3\u7801\u662f\u7528Java\u7684\u8bed\u6cd5\u89c4\u5219\u7f16\u5199\u7684\u6587\u672c\u6587\u4ef6\uff0c\u901a\u5e38\u4ee5 .java<\/code> \u4e3a\u540e\u7f00\u3002\u4e3a\u4e86\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u6e90\u4ee3\u7801\u9700\u8981\u9075\u5faa\u4e00\u5b9a\u7684\u7f16\u7801\u89c4\u8303\uff0c\u5982\u547d\u540d\u89c4\u8303\u3001\u6ce8\u91ca\u89c4\u5219\u7b49\u3002<\/p>\n<\/p>\n

\u4e8c\u3001\u7f16\u8bd1\u8fc7\u7a0b<\/h3>\n<\/p>\n

\u4e00\u65e6\u6e90\u4ee3\u7801\u7f16\u5199\u5b8c\u6210\uff0c\u63a5\u4e0b\u6765\u5c31\u9700\u8981\u7f16\u8bd1\u3002\u901a\u8fc7Java\u7f16\u8bd1\u5668\uff08javac\uff09\uff0c\u6e90\u4ee3\u7801\u88ab\u8f6c\u6362\u6210Java\u5b57\u8282\u7801\uff0c\u5b58\u50a8\u4e8e.class<\/code>\u6587\u4ef6\u4e2d\u3002\u5b57\u8282\u7801\u662f\u4e00\u79cd\u4e2d\u95f4\u4ee3\u7801\uff0c\u5b83\u4e0e\u5e73\u53f0\u65e0\u5173\uff0c\u53ef\u4ee5\u5728\u4efb\u4f55\u5b89\u88c5\u4e86Java\u865a\u62df\u673a\u7684\u8bbe\u5907\u4e0a\u8fd0\u884c\u3002<\/p>\n<\/p>\n

\u7f16\u8bd1\u8fc7\u7a0b\u7684\u5173\u952e\u662f\u5c06\u4eba\u7c7b\u53ef\u8bfb\u7684\u4ee3\u7801\u8f6c\u6362\u4e3a\u8ba1\u7b97\u673a\u53ef\u6267\u884c\u7684\u6307\u4ee4\u3002\u6b64\u8fc7\u7a0b\u4e2d\u7f16\u8bd1\u5668\u4e5f\u4f1a\u6267\u884c\u4e00\u7cfb\u5217\u68c0\u67e5\uff0c\u5305\u62ec\u8bed\u6cd5\u9519\u8bef\u68c0\u67e5\u3001\u7c7b\u578b\u68c0\u67e5\u7b49\uff0c\u4ee5\u786e\u4fdd\u4ee3\u7801\u7684\u6b63\u786e\u6027\u3002<\/p>\n<\/p>\n

\u4e09\u3001\u7c7b\u52a0\u8f7d<\/h3>\n<\/p>\n

\u7f16\u8bd1\u8fc7\u7a0b\u4e4b\u540e\uff0c\u7c7b\u52a0\u8f7d\u5668\u8d1f\u8d23\u5c06.class<\/code>\u6587\u4ef6\u52a0\u8f7d\u5230JVM\u4e2d\u3002\u7c7b\u52a0\u8f7d\u8fc7\u7a0b\u6d89\u53ca\u4e09\u4e2a\u4e3b\u8981\u6b65\u9aa4\uff1a\u52a0\u8f7d\u3001\u94fe\u63a5\u548c\u521d\u59cb\u5316<\/strong>\u3002\u5728\u52a0\u8f7d\u9636\u6bb5\uff0c\u7c7b\u52a0\u8f7d\u5668\u8bfb\u53d6.class<\/code>\u6587\u4ef6\uff0c\u5e76\u5c06\u5176\u8f6c\u6362\u4e3a\u4e00\u4e2a\u5728\u5185\u5b58\u4e2d\u7684\u7c7b\u3002\u94fe\u63a5\u9636\u6bb5\u5bf9\u7c7b\u8fdb\u884c\u9a8c\u8bc1\u3001\u51c6\u5907\u3001\u89e3\u6790\uff0c\u786e\u4fdd\u7c7b\u7684\u6b63\u786e\u6027\u53ca\u5f15\u7528\u7684\u5b9e\u6548\u6027\u3002\u521d\u59cb\u5316\u9636\u6bb5\u5219\u6267\u884c\u7c7b\u6784\u9020\u5668 <clinit>()<\/code> \u65b9\u6cd5\uff0c\u8fdb\u884c\u9759\u6001\u53d8\u91cf\u7684\u8d4b\u503c\u548c\u9759\u6001\u4ee3\u7801\u5757\u7684\u6267\u884c\u3002<\/p>\n<\/p>\n

\u56db\u3001\u6267\u884c<\/h3>\n<\/p>\n

\u6700\u540e\u9636\u6bb5\u4e3a\u6267\u884c\uff0c\u8fd9\u662f\u6574\u4e2aJava\u4ee3\u7801\u6267\u884c\u8fc7\u7a0b\u7684\u7ec8\u70b9\u3002JVM\u901a\u8fc7\u89e3\u91ca\u5668\u8bfb\u53d6\u7c7b\u7684\u5b57\u8282\u7801\uff0c\u5728\u9700\u8981\u65f6\u7f16\u8bd1\u6210\u672c\u5730\u673a\u5668\u4ee3\u7801\u5e76\u8fd0\u884c\u3002\u5728\u8fd9\u4e2a\u9636\u6bb5\uff0cJava\u7684\u5783\u573e\u56de\u6536\u673a\u5236\u4e5f\u4f1a\u4ecb\u5165\u7ba1\u7406\u5185\u5b58\uff0c\u786e\u4fdd\u5185\u5b58\u7684\u9ad8\u6548\u4f7f\u7528\u548c\u5e94\u7528\u7684\u6027\u80fd\u3002<\/p>\n<\/p>\n

JVM\u6267\u884c\u4ee3\u7801\u65f6\u4f1a\u901a\u8fc7\u4e00\u4e2a\u79f0\u4e3a\u201c\u5373\u65f6\u7f16\u8bd1\u5668\u201d\uff08Just-In-Time, JIT\uff09\u7684\u7ec4\u4ef6\u63d0\u9ad8\u6027\u80fd\u3002JIT\u7f16\u8bd1\u5668\u53ef\u4ee5\u5c06\u70ed\u70b9\u4ee3\u7801\uff08\u9891\u7e41\u6267\u884c\u7684\u4ee3\u7801\uff09\u7f16\u8bd1\u6210\u5bf9\u5e94\u5e73\u53f0\u7684\u672c\u673a\u4ee3\u7801\uff0c\u4ee5\u63d0\u5347\u8fd0\u884c\u901f\u5ea6<\/strong>\u3002<\/p>\n<\/p>\n

\u901a\u8fc7\u4ee5\u4e0a\u4ecb\u7ecd\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230Java\u4ee3\u7801\u7684\u6267\u884c\u662f\u4e00\u4e2a\u7531\u7f16\u5199\u3001\u7f16\u8bd1\u3001\u52a0\u8f7d\u81f3\u8fd0\u884c\u7684\u5b8c\u6574\u8fc7\u7a0b\uff0c\u8fd9\u4e00\u5207\u90fd\u662f\u5728JVM\u7684\u7ba1\u7406\u548c\u63a7\u5236\u4e0b\u8fdb\u884c\u7684\uff0c\u4fdd\u8bc1\u4e86Java\u7a0b\u5e8f\u80fd\u591f\u5b9e\u73b0\u201c\u4e00\u6b21\u7f16\u5199\uff0c\u5230\u5904\u8fd0\u884c\u201d\u7684\u7279\u70b9\u3002<\/p>\n<\/p>\n

\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
    \n
  1. \n

    Java\u4ee3\u7801\u662f\u5982\u4f55\u6267\u884c\u7684\uff1f<\/strong> Java\u4ee3\u7801\u7684\u6267\u884c\u662f\u901a\u8fc7Java\u865a\u62df\u673a (JVM) \u6765\u5b8c\u6210\u7684\u3002JVM\u662fJava\u7684\u8fd0\u884c\u65f6\u73af\u5883\uff0c\u5728\u6267\u884cJava\u4ee3\u7801\u4e4b\u524d\uff0cJVM\u4f1a\u5bf9Java\u6e90\u4ee3\u7801\u8fdb\u884c\u7f16\u8bd1\uff0c\u5c06\u5176\u8f6c\u6362\u4e3a\u5b57\u8282\u7801\u6587\u4ef6\u3002\u7136\u540e\uff0cJVM\u52a0\u8f7d\u5b57\u8282\u7801\u6587\u4ef6\u5e76\u6267\u884c\u5b83\u3002<\/p>\n<\/li>\n

  2. \n

    Java\u4ee3\u7801\u6267\u884c\u7684\u6b65\u9aa4\u662f\u4ec0\u4e48\uff1f<\/strong> Java\u4ee3\u7801\u7684\u6267\u884c\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u6b65\u9aa4\uff1a\u9996\u5148\uff0cJVM\u4f1a\u52a0\u8f7d\u548c\u9a8c\u8bc1\u5b57\u8282\u7801\u6587\u4ef6\u7684\u6709\u6548\u6027\uff0c\u786e\u4fdd\u5b83\u662f\u5408\u6cd5\u4e14\u5b89\u5168\u7684\u3002\u7136\u540e\uff0cJVM\u4f1a\u5c06\u5b57\u8282\u7801\u6587\u4ef6\u8f6c\u6362\u6210\u673a\u5668\u7801\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u79f0\u4e3a\u5373\u65f6\u7f16\u8bd1\u3002\u63a5\u7740\uff0cJVM\u4f1a\u5728\u5185\u5b58\u4e2d\u521b\u5efa\u76f8\u5e94\u7684\u7c7b\u548c\u5bf9\u8c61\uff0c\u5e76\u6839\u636e\u4ee3\u7801\u7684\u903b\u8f91\u4f9d\u6b21\u6267\u884c\u64cd\u4f5c\u3002\u6700\u540e\uff0cJVM\u4f1a\u5728\u7a0b\u5e8f\u6267\u884c\u5b8c\u6bd5\u540e\u8fdb\u884c\u5783\u573e\u56de\u6536\u548c\u8d44\u6e90\u91ca\u653e\u3002<\/p>\n<\/li>\n

  3. \n

    Java\u4ee3\u7801\u7684\u6267\u884c\u8fc7\u7a0b\u4e2d\u6709\u54ea\u4e9b\u91cd\u8981\u7684\u7ec4\u6210\u90e8\u5206\uff1f<\/strong> \u5728Java\u4ee3\u7801\u7684\u6267\u884c\u8fc7\u7a0b\u4e2d\uff0c\u6709\u4ee5\u4e0b\u51e0\u4e2a\u91cd\u8981\u7684\u7ec4\u6210\u90e8\u5206\uff1a\u9996\u5148\uff0c\u7c7b\u52a0\u8f7d\u5668\u8d1f\u8d23\u52a0\u8f7d\u5b57\u8282\u7801\u6587\u4ef6\uff0c\u5e76\u5c06\u5176\u8f6c\u6362\u6210\u5185\u5b58\u4e2d\u7684\u7c7b\u548c\u5bf9\u8c61\u3002\u63a5\u4e0b\u6765\uff0c\u89e3\u91ca\u5668\u8d1f\u8d23\u9010\u6761\u89e3\u91ca\u5e76\u6267\u884c\u5b57\u8282\u7801\u6307\u4ee4\u3002\u800c\u5373\u65f6\u7f16\u8bd1\u5668\u5219\u53ef\u4ee5\u5c06\u70ed\u70b9\u4ee3\u7801\uff08\u88ab\u9891\u7e41\u6267\u884c\u7684\u4ee3\u7801\uff09\u8f6c\u6362\u6210\u9ad8\u6548\u7684\u672c\u5730\u673a\u5668\u7801\uff0c\u63d0\u5347\u7a0b\u5e8f\u7684\u6267\u884c\u6548\u7387\u3002\u6b64\u5916\uff0c\u5783\u573e\u56de\u6536\u5668\u4e5f\u662f\u6267\u884c\u8fc7\u7a0b\u4e2d\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\uff0c\u5b83\u8d1f\u8d23\u56de\u6536\u4e0d\u518d\u4f7f\u7528\u7684\u5185\u5b58\u5e76\u91ca\u653e\u8d44\u6e90\u3002\u7efc\u5408\u4ee5\u4e0a\u7ec4\u6210\u90e8\u5206\uff0cJava\u4ee3\u7801\u53ef\u4ee5\u88ab\u9ad8\u6548\u5730\u6267\u884c\u3002<\/p>\n<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"Java\u4ee3\u7801\u7684\u6267\u884c\u8fc7\u7a0b\u4e3b\u8981\u5305\u62ec\u5982\u4e0b\u51e0\u4e2a\u6b65\u9aa4\uff1a\u6e90\u4ee3\u7801\u7f16\u5199\u3001\u7f16\u8bd1\u3001\u7c7b\u52a0\u8f7d\u3001\u6267\u884c\u3002\u9996\u5148\uff0c\u5f00\u53d1\u4eba\u5458\u4f7f\u7528\u6587\u672c\u7f16\u8f91\u5668\u7f16\u5199J […]","protected":false},"author":3,"featured_media":253478,"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\/253474"}],"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=253474"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/253474\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/253478"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=253474"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=253474"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=253474"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}