{"id":2765,"date":"2018-05-06T13:37:00","date_gmt":"2018-05-06T05:37:00","guid":{"rendered":"http:\/\/www.xttblog.com\/?p=2765"},"modified":"2018-05-06T13:37:00","modified_gmt":"2018-05-06T05:37:00","slug":"java-%e7%b1%bb%e7%9a%84%e7%94%9f%e5%91%bd%e5%91%a8%e6%9c%9f","status":"publish","type":"post","link":"https:\/\/www.xttblog.com\/?p=2765","title":{"rendered":"Java \u7c7b\u7684\u751f\u547d\u5468\u671f"},"content":{"rendered":"<p>\n\tJava \u4e4b\u6240\u4ee5\u6d41\u884c\u662f\u56e0\u4e3a Java \u603b\u6709\u4ece\u51fa\u4e0d\u7a77\u7684\u65b0\u6846\u67b6\u63a8\u51fa\u3002Java \u4e4b\u6240\u4ee5\u88ab\u4f17\u591a\u7684\u5f00\u53d1\u8005\u652f\u6301\u662f\u56e0\u4e3a\u5b83\u5728\u4f17\u591a\u7684\u5546\u4e1a\u9886\u57df\u53d8\u73b0\u51fa\u51fa\u8272\u7684\u7a33\u5b9a\u6027\u3002\u8fd9\u4e00\u5207\u90fd\u548c Java \u7684\u8bbe\u8ba1\u6709\u5173\uff0c\u4e3a\u4e86\u5b66\u4e60\u5e76\u7acb\u5373 Java \uff0c\u6211\u4eec\u5e94\u8be5\u4ece\u5b83\u7684\u7c7b\u52a0\u8f7d\u673a\u5236\u548c\u7c7b\u7684\u751f\u547d\u5468\u671f\u5b66\u8d77\u3002\u672c\u6587\u7ed3\u5408\u7f51\u4e0a\u7684\u4e00\u4e9b\u76f8\u5173\u6848\u4f8b\u548c\u4e2a\u4eba\u5fc3\u5f97\u603b\u7ed3\u51fa\u4e86 Java \u7c7b\u7684\u751f\u547d\u5468\u671f\u4e00\u6587\uff0c\u5e0c\u671b\u5927\u5bb6\u559c\u6b22\u3002\u5982\u6709\u9519\u8bef\uff0c\u8bf7\u5927\u5bb6\u6307\u6b63\uff01\n<\/p>\n<p>\n\t\u7c7b\u7684\u52a0\u8f7d\u6307\u7684\u662f\u5c06\u7c7b\u7684 .class \u6587\u4ef6\u4e2d\u7684\u5b57\u8282\u7801\u6570\u636e\u8bfb\u5165\u5230\u5185\u5b58\u4e2d\uff0c\u5c06\u5176\u653e\u5728\u8fd0\u884c\u65f6\u6570\u636e\u533a\u7684\u65b9\u6cd5\u533a\u5185\uff0c\u7136\u540e\u5728\u5806\u533a\u521b\u5efa\u4e00\u4e2a java.lang.Class \u5bf9\u8c61\uff0c\u7528\u6765\u5c01\u88c5\u7c7b\u5728\u65b9\u6cd5\u533a\u5185\u7684\u6570\u636e\u7ed3\u6784\u3002\u7c7b\u7684\u52a0\u8f7d\u7684\u6700\u7ec8\u4ea7\u54c1\u662f\u4f4d\u4e8e\u5806\u533a\u4e2d\u7684 Class \u5bf9\u8c61\uff0cClass \u5bf9\u8c61\u5c01\u88c5\u4e86\u7c7b\u5728\u65b9\u6cd5\u533a\u5185\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5e76\u4e14\u5411 Java \u7a0b\u5e8f\u5458\u63d0\u4f9b\u4e86\u8bbf\u95ee\u65b9\u6cd5\u533a\u5185\u7684\u6570\u636e\u7ed3\u6784\u7684\u63a5\u53e3\u3002\n<\/p>\n<p>\n\t<img decoding=\"async\" alt=\"Java \u7c7b\u7684\u52a0\u8f7d\u673a\u5236\" src=\"http:\/\/www.ityouknow.com\/assets\/images\/2017\/jvm\/jvm-1.png\" style=\"width: 419px;height: 183px\" \/>\n<\/p>\n<p>\n\t\u7c7b\u52a0\u8f7d\u5668\u5e76\u4e0d\u9700\u8981\u7b49\u5230\u67d0\u4e2a\u7c7b\u88ab&ldquo;\u9996\u6b21\u4e3b\u52a8\u4f7f\u7528&rdquo;\u65f6\u518d\u52a0\u8f7d\u5b83\uff0cJVM \u89c4\u8303\u5141\u8bb8\u7c7b\u52a0\u8f7d\u5668\u5728\u9884\u6599\u67d0\u4e2a\u7c7b\u5c06\u8981\u88ab\u4f7f\u7528\u65f6\u5c31\u9884\u5148\u52a0\u8f7d\u5b83\uff0c\u5982\u679c\u5728\u9884\u5148\u52a0\u8f7d\u7684\u8fc7\u7a0b\u4e2d\u9047\u5230\u4e86 .class \u6587\u4ef6\u7f3a\u5931\u6216\u5b58\u5728\u9519\u8bef\uff0c\u7c7b\u52a0\u8f7d\u5668\u5fc5\u987b\u5728\u7a0b\u5e8f\u9996\u6b21\u4e3b\u52a8\u4f7f\u7528\u8be5\u7c7b\u65f6\u624d\u62a5\u544a\u9519\u8bef\uff08LinkageError \u9519\u8bef\uff09\u5982\u679c\u8fd9\u4e2a\u7c7b\u4e00\u76f4\u6ca1\u6709\u88ab\u7a0b\u5e8f\u4e3b\u52a8\u4f7f\u7528\uff0c\u90a3\u4e48\u7c7b\u52a0\u8f7d\u5668\u5c31\u4e0d\u4f1a\u62a5\u544a\u9519\u8bef\u3002\n<\/p>\n<p>\n\t<strong>\u52a0\u8f7d.class\u6587\u4ef6\u7684\u65b9\u5f0f<\/strong>\n<\/p>\n<ul>\n<li>\n\t\t\u4ece\u672c\u5730\u7cfb\u7edf\u4e2d\u76f4\u63a5\u52a0\u8f7d\n\t<\/li>\n<li>\n\t\t\u901a\u8fc7\u7f51\u7edc\u4e0b\u8f7d .class \u6587\u4ef6\n\t<\/li>\n<li>\n\t\t\u4ece zip\uff0cjar \u7b49\u5f52\u6863\u6587\u4ef6\u4e2d\u52a0\u8f7d .class \u6587\u4ef6\n\t<\/li>\n<li>\n\t\t\u4ece\u4e13\u6709\u6570\u636e\u5e93\u4e2d\u63d0\u53d6 .class \u6587\u4ef6\n\t<\/li>\n<li>\n\t\t\u5c06 Java \u6e90\u6587\u4ef6\u52a8\u6001\u7f16\u8bd1\u4e3a .class \u6587\u4ef6\n\t<\/li>\n<\/ul>\n<h2>\n\tJava&nbsp;\u7c7b\u7684\u751f\u547d\u5468\u671f<br \/>\n<\/h2>\n<p>\n\t<img decoding=\"async\" alt=\"Java \u7c7b\u7684\u52a0\u8f7d\u8fc7\u7a0b\" src=\"http:\/\/www.ityouknow.com\/assets\/images\/2017\/jvm\/class.png\" style=\"width: 694px;height: 225px\" \/><br \/>\n\t\u5176\u4e2d\u7c7b\u52a0\u8f7d\u7684\u8fc7\u7a0b\u5305\u62ec\u4e86\u52a0\u8f7d\u3001\u9a8c\u8bc1\u3001\u51c6\u5907\u3001\u89e3\u6790\u3001\u521d\u59cb\u5316\u4e94\u4e2a\u9636\u6bb5\u3002\u5728\u8fd9\u4e94\u4e2a\u9636\u6bb5\u4e2d\uff0c\u52a0\u8f7d\u3001\u9a8c\u8bc1\u3001\u51c6\u5907\u548c\u521d\u59cb\u5316\u8fd9\u56db\u4e2a\u9636\u6bb5\u53d1\u751f\u7684\u987a\u5e8f\u662f\u786e\u5b9a\u7684\uff0c\u800c\u89e3\u6790\u9636\u6bb5\u5219\u4e0d\u4e00\u5b9a\uff0c\u5b83\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u4ee5\u5728\u521d\u59cb\u5316\u9636\u6bb5\u4e4b\u540e\u5f00\u59cb\uff0c\u8fd9\u662f\u4e3a\u4e86\u652f\u6301 Java \u8bed\u8a00\u7684\u8fd0\u884c\u65f6\u7ed1\u5b9a\uff08\u4e5f\u6210\u4e3a\u52a8\u6001\u7ed1\u5b9a\u6216\u665a\u671f\u7ed1\u5b9a\uff09\u3002\u53e6\u5916\u6ce8\u610f\u8fd9\u91cc\u7684\u51e0\u4e2a\u9636\u6bb5\u662f\u6309\u987a\u5e8f\u5f00\u59cb\uff0c\u800c\u4e0d\u662f\u6309\u987a\u5e8f\u8fdb\u884c\u6216\u5b8c\u6210\uff0c\u56e0\u4e3a\u8fd9\u4e9b\u9636\u6bb5\u901a\u5e38\u90fd\u662f\u4e92\u76f8\u4ea4\u53c9\u5730\u6df7\u5408\u8fdb\u884c\u7684\uff0c\u901a\u5e38\u5728\u4e00\u4e2a\u9636\u6bb5\u6267\u884c\u7684\u8fc7\u7a0b\u4e2d\u8c03\u7528\u6216\u6fc0\u6d3b\u53e6\u4e00\u4e2a\u9636\u6bb5\u3002\n<\/p>\n<h2>\n\t\u7c7b\u7684\u52a0\u8f7d<br \/>\n<\/h2>\n<p>\n\t\u67e5\u627e\u5e76\u52a0\u8f7d\u7c7b\u7684\u5b57\u8282\u7801\u6570\u636e\u52a0\u8f7d\u65f6\u7c7b\u52a0\u8f7d\u8fc7\u7a0b\u7684\u7b2c\u4e00\u4e2a\u9636\u6bb5\uff0c\u5728\u52a0\u8f7d\u9636\u6bb5\uff0c\u865a\u62df\u673a\u9700\u8981\u5b8c\u6210\u4ee5\u4e0b\u4e09\u4ef6\u4e8b\u60c5\uff1a\n<\/p>\n<ul>\n<li>\n\t\t\u901a\u8fc7\u4e00\u4e2a\u7c7b\u7684\u5168\u9650\u5b9a\u540d\u6765\u83b7\u53d6\u5176\u5b9a\u4e49\u7684\u4e8c\u8fdb\u5236\u5b57\u8282\u6d41\u3002\n\t<\/li>\n<li>\n\t\t\u5c06\u8fd9\u4e2a\u5b57\u8282\u6d41\u6240\u4ee3\u8868\u7684\u9759\u6001\u5b58\u50a8\u7ed3\u6784\u8f6c\u5316\u4e3a\u65b9\u6cd5\u533a\u7684\u8fd0\u884c\u65f6\u6570\u636e\u7ed3\u6784\u3002\n\t<\/li>\n<li>\n\t\t\u5728 Java \u5806\u4e2d\u751f\u6210\u4e00\u4e2a\u4ee3\u8868\u8fd9\u4e2a\u7c7b\u7684 java.lang.Class \u5bf9\u8c61\uff0c\u4f5c\u4e3a\u5bf9\u65b9\u6cd5\u533a\u4e2d\u8fd9\u4e9b\u6570\u636e\u7684\u8bbf\u95ee\u5165\u53e3\u3002\n\t<\/li>\n<\/ul>\n<p>\n\t\u76f8\u5bf9\u4e8e\u7c7b\u52a0\u8f7d\u7684\u5176\u4ed6\u9636\u6bb5\u800c\u8a00\uff0c\u52a0\u8f7d\u9636\u6bb5\uff08\u51c6\u786e\u5730\u8bf4\uff0c\u662f\u52a0\u8f7d\u9636\u6bb5\u83b7\u53d6\u7c7b\u7684\u4e8c\u8fdb\u5236\u5b57\u8282\u6d41\u7684\u52a8\u4f5c\uff09\u662f\u53ef\u63a7\u6027\u6700\u5f3a\u7684\u9636\u6bb5\uff0c\u56e0\u4e3a\u5f00\u53d1\u4eba\u5458\u65e2\u53ef\u4ee5\u4f7f\u7528\u7cfb\u7edf\u63d0\u4f9b\u7684\u7c7b\u52a0\u8f7d\u5668\u6765\u5b8c\u6210\u52a0\u8f7d\uff0c\u4e5f\u53ef\u4ee5\u81ea\u5b9a\u4e49\u81ea\u5df1\u7684\u7c7b\u52a0\u8f7d\u5668\u6765\u5b8c\u6210\u52a0\u8f7d\u3002\n<\/p>\n<p>\n\t\u52a0\u8f7d\u9636\u6bb5\u5b8c\u6210\u540e\uff0c\u865a\u62df\u673a\u5916\u90e8\u7684\u4e8c\u8fdb\u5236\u5b57\u8282\u6d41\u5c31\u6309\u7167\u865a\u62df\u673a\u6240\u9700\u7684\u683c\u5f0f\u5b58\u50a8\u5728\u65b9\u6cd5\u533a\u4e4b\u4e2d\uff0c\u800c\u4e14\u5728Java\u5806\u4e2d\u4e5f\u521b\u5efa\u4e00\u4e2a java.lang.Class \u7c7b\u7684\u5bf9\u8c61\uff0c\u8fd9\u6837\u4fbf\u53ef\u4ee5\u901a\u8fc7\u8be5\u5bf9\u8c61\u8bbf\u95ee\u65b9\u6cd5\u533a\u4e2d\u7684\u8fd9\u4e9b\u6570\u636e\u3002\n<\/p>\n<p>\n\t<strong>\u9a8c\u8bc1\uff1a\u786e\u4fdd\u88ab\u52a0\u8f7d\u7684\u7c7b\u7684\u6b63\u786e\u6027<\/strong>\n<\/p>\n<p>\n\t\u9a8c\u8bc1\u662f\u8fde\u63a5\u9636\u6bb5\u7684\u7b2c\u4e00\u6b65\uff0c\u8fd9\u4e00\u9636\u6bb5\u7684\u76ee\u7684\u662f\u4e3a\u4e86\u786e\u4fddClass\u6587\u4ef6\u7684\u5b57\u8282\u6d41\u4e2d\u5305\u542b\u7684\u4fe1\u606f\u7b26\u5408\u5f53\u524d\u865a\u62df\u673a\u7684\u8981\u6c42\uff0c\u5e76\u4e14\u4e0d\u4f1a\u5371\u5bb3\u865a\u62df\u673a\u81ea\u8eab\u7684\u5b89\u5168\u3002\u9a8c\u8bc1\u9636\u6bb5\u5927\u81f4\u4f1a\u5b8c\u62104\u4e2a\u9636\u6bb5\u7684\u68c0\u9a8c\u52a8\u4f5c\uff1a\n<\/p>\n<ul>\n<li>\n\t\t<strong>\u6587\u4ef6\u683c\u5f0f\u9a8c\u8bc1<\/strong>\uff1a\u9a8c\u8bc1\u5b57\u8282\u6d41\u662f\u5426\u7b26\u5408Class\u6587\u4ef6\u683c\u5f0f\u7684\u89c4\u8303\uff1b\u4f8b\u5982\uff1a\u662f\u5426\u4ee5<code>0xCAFEBABE<\/code>\u5f00\u5934\u3001\u4e3b\u6b21\u7248\u672c\u53f7\u662f\u5426\u5728\u5f53\u524d\u865a\u62df\u673a\u7684\u5904\u7406\u8303\u56f4\u4e4b\u5185\u3001\u5e38\u91cf\u6c60\u4e2d\u7684\u5e38\u91cf\u662f\u5426\u6709\u4e0d\u88ab\u652f\u6301\u7684\u7c7b\u578b\u3002\n\t<\/li>\n<li>\n\t\t<strong>\u5143\u6570\u636e\u9a8c\u8bc1<\/strong>\uff1a\u5bf9\u5b57\u8282\u7801\u63cf\u8ff0\u7684\u4fe1\u606f\u8fdb\u884c\u8bed\u4e49\u5206\u6790\uff08\u6ce8\u610f\uff1a\u5bf9\u6bd4javac\u7f16\u8bd1\u9636\u6bb5\u7684\u8bed\u4e49\u5206\u6790\uff09\uff0c\u4ee5\u4fdd\u8bc1\u5176\u63cf\u8ff0\u7684\u4fe1\u606f\u7b26\u5408Java\u8bed\u8a00\u89c4\u8303\u7684\u8981\u6c42\uff1b\u4f8b\u5982\uff1a\u8fd9\u4e2a\u7c7b\u662f\u5426\u6709\u7236\u7c7b\uff0c\u9664\u4e86<code>java.lang.Object<\/code>\u4e4b\u5916\u3002\n\t<\/li>\n<li>\n\t\t<strong>\u5b57\u8282\u7801\u9a8c\u8bc1<\/strong>\uff1a\u901a\u8fc7\u6570\u636e\u6d41\u548c\u63a7\u5236\u6d41\u5206\u6790\uff0c\u786e\u5b9a\u7a0b\u5e8f\u8bed\u4e49\u662f\u5408\u6cd5\u7684\u3001\u7b26\u5408\u903b\u8f91\u7684\u3002\n\t<\/li>\n<li>\n\t\t<strong>\u7b26\u53f7\u5f15\u7528\u9a8c\u8bc1<\/strong>\uff1a\u786e\u4fdd\u89e3\u6790\u52a8\u4f5c\u80fd\u6b63\u786e\u6267\u884c\u3002\n\t<\/li>\n<\/ul>\n<p>\n\t\u9a8c\u8bc1\u9636\u6bb5\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u4f46\u4e0d\u662f\u5fc5\u987b\u7684\uff0c\u5b83\u5bf9\u7a0b\u5e8f\u8fd0\u884c\u671f\u6ca1\u6709\u5f71\u54cd\uff0c\u5982\u679c\u6240\u5f15\u7528\u7684\u7c7b\u7ecf\u8fc7\u53cd\u590d\u9a8c\u8bc1\uff0c\u90a3\u4e48\u53ef\u4ee5\u8003\u8651\u91c7\u7528<code>-Xverifynone<\/code>\u53c2\u6570\u6765\u5173\u95ed\u5927\u90e8\u5206\u7684\u7c7b\u9a8c\u8bc1\u63aa\u65bd\uff0c\u4ee5\u7f29\u77ed\u865a\u62df\u673a\u7c7b\u52a0\u8f7d\u7684\u65f6\u95f4\u3002\n<\/p>\n<p>\n\t<strong>\u51c6\u5907\uff1a\u4e3a\u7c7b\u7684<code>\u9759\u6001\u53d8\u91cf\u5206<\/code>\u914d\u5185\u5b58\uff0c\u5e76\u5c06\u5176\u521d\u59cb\u5316\u4e3a\u9ed8\u8ba4\u503c<\/strong>\n<\/p>\n<p>\n\t\u51c6\u5907\u9636\u6bb5\u662f\u6b63\u5f0f\u4e3a\u7c7b\u53d8\u91cf\u5206\u914d\u5185\u5b58\u5e76\u8bbe\u7f6e\u7c7b\u53d8\u91cf\u521d\u59cb\u503c\u7684\u9636\u6bb5\uff0c\u8fd9\u4e9b\u5185\u5b58\u90fd\u5c06\u5728\u65b9\u6cd5\u533a\u4e2d\u5206\u914d\u3002\u5bf9\u4e8e\u8be5\u9636\u6bb5\u6709\u4ee5\u4e0b\u51e0\u70b9\u9700\u8981\u6ce8\u610f\uff1a\n<\/p>\n<ul>\n<li>\n\t\t1\u3001\u8fd9\u65f6\u5019\u8fdb\u884c\u5185\u5b58\u5206\u914d\u7684\u4ec5\u5305\u62ec\u7c7b\u53d8\u91cf\uff08static\uff09\uff0c\u800c\u4e0d\u5305\u62ec\u5b9e\u4f8b\u53d8\u91cf\uff0c\u5b9e\u4f8b\u53d8\u91cf\u4f1a\u5728\u5bf9\u8c61\u5b9e\u4f8b\u5316\u65f6\u968f\u7740\u5bf9\u8c61\u4e00\u5757\u5206\u914d\u5728Java\u5806\u4e2d\u3002\n\t<\/li>\n<li>\n\t\t2\u3001\u8fd9\u91cc\u6240\u8bbe\u7f6e\u7684\u521d\u59cb\u503c\u901a\u5e38\u60c5\u51b5\u4e0b\u662f\u6570\u636e\u7c7b\u578b\u9ed8\u8ba4\u7684\u96f6\u503c\uff08\u59820\u30010L\u3001null\u3001false\u7b49\uff09\uff0c\u800c\u4e0d\u662f\u88ab\u5728Java\u4ee3\u7801\u4e2d\u88ab\u663e\u5f0f\u5730\u8d4b\u4e88\u7684\u503c\u3002\n\t<\/li>\n<\/ul>\n<p>\n\t\u5047\u8bbe\u4e00\u4e2a\u7c7b\u53d8\u91cf\u7684\u5b9a\u4e49\u4e3a\uff1a<code>public static int value = 3<\/code>\uff1b\n<\/p>\n<p>\n\t\u90a3\u4e48\u53d8\u91cfvalue\u5728\u51c6\u5907\u9636\u6bb5\u8fc7\u540e\u7684\u521d\u59cb\u503c\u4e3a0\uff0c\u800c\u4e0d\u662f3\uff0c\u56e0\u4e3a\u8fd9\u65f6\u5019\u5c1a\u672a\u5f00\u59cb\u6267\u884c\u4efb\u4f55Java\u65b9\u6cd5\uff0c\u800c\u628avalue\u8d4b\u503c\u4e3a3\u7684<code>public static<\/code>\u6307\u4ee4\u662f\u5728\u7a0b\u5e8f\u7f16\u8bd1\u540e\uff0c\u5b58\u653e\u4e8e\u7c7b\u6784\u9020\u5668<code>&lt;clinit&gt;\uff08\uff09<\/code>\u65b9\u6cd5\u4e4b\u4e2d\u7684\uff0c\u6240\u4ee5\u628avalue\u8d4b\u503c\u4e3a3\u7684\u52a8\u4f5c\u5c06\u5728\u521d\u59cb\u5316\u9636\u6bb5\u624d\u4f1a\u6267\u884c\u3002\n<\/p>\n<blockquote>\n<p>\n\t\t\u8fd9\u91cc\u8fd8\u9700\u8981\u6ce8\u610f\u5982\u4e0b\u51e0\u70b9\uff1a\n\t<\/p>\n<ul>\n<li>\n\t\t\t\u5bf9\u57fa\u672c\u6570\u636e\u7c7b\u578b\u6765\u8bf4\uff0c\u5bf9\u4e8e\u7c7b\u53d8\u91cf\uff08static\uff09\u548c\u5168\u5c40\u53d8\u91cf\uff0c\u5982\u679c\u4e0d\u663e\u5f0f\u5730\u5bf9\u5176\u8d4b\u503c\u800c\u76f4\u63a5\u4f7f\u7528\uff0c\u5219\u7cfb\u7edf\u4f1a\u4e3a\u5176\u8d4b\u4e88\u9ed8\u8ba4\u7684\u96f6\u503c\uff0c\u800c\u5bf9\u4e8e\u5c40\u90e8\u53d8\u91cf\u6765\u8bf4\uff0c\u5728\u4f7f\u7528\u524d\u5fc5\u987b\u663e\u5f0f\u5730\u4e3a\u5176\u8d4b\u503c\uff0c\u5426\u5219\u7f16\u8bd1\u65f6\u4e0d\u901a\u8fc7\u3002\n\t\t<\/li>\n<li>\n\t\t\t\u5bf9\u4e8e\u540c\u65f6\u88abstatic\u548cfinal\u4fee\u9970\u7684\u5e38\u91cf\uff0c\u5fc5\u987b\u5728\u58f0\u660e\u7684\u65f6\u5019\u5c31\u4e3a\u5176\u663e\u5f0f\u5730\u8d4b\u503c\uff0c\u5426\u5219\u7f16\u8bd1\u65f6\u4e0d\u901a\u8fc7\uff1b\u800c\u53ea\u88abfinal\u4fee\u9970\u7684\u5e38\u91cf\u5219\u65e2\u53ef\u4ee5\u5728\u58f0\u660e\u65f6\u663e\u5f0f\u5730\u4e3a\u5176\u8d4b\u503c\uff0c\u4e5f\u53ef\u4ee5\u5728\u7c7b\u521d\u59cb\u5316\u65f6\u663e\u5f0f\u5730\u4e3a\u5176\u8d4b\u503c\uff0c\u603b\u4e4b\uff0c\u5728\u4f7f\u7528\u524d\u5fc5\u987b\u4e3a\u5176\u663e\u5f0f\u5730\u8d4b\u503c\uff0c\u7cfb\u7edf\u4e0d\u4f1a\u4e3a\u5176\u8d4b\u4e88\u9ed8\u8ba4\u96f6\u503c\u3002\n\t\t<\/li>\n<li>\n\t\t\t\u5bf9\u4e8e\u5f15\u7528\u6570\u636e\u7c7b\u578breference\u6765\u8bf4\uff0c\u5982\u6570\u7ec4\u5f15\u7528\u3001\u5bf9\u8c61\u5f15\u7528\u7b49\uff0c\u5982\u679c\u6ca1\u6709\u5bf9\u5176\u8fdb\u884c\u663e\u5f0f\u5730\u8d4b\u503c\u800c\u76f4\u63a5\u4f7f\u7528\uff0c\u7cfb\u7edf\u90fd\u4f1a\u4e3a\u5176\u8d4b\u4e88\u9ed8\u8ba4\u7684\u96f6\u503c\uff0c\u5373null\u3002\n\t\t<\/li>\n<li>\n\t\t\t\u5982\u679c\u5728\u6570\u7ec4\u521d\u59cb\u5316\u65f6\u6ca1\u6709\u5bf9\u6570\u7ec4\u4e2d\u7684\u5404\u5143\u7d20\u8d4b\u503c\uff0c\u90a3\u4e48\u5176\u4e2d\u7684\u5143\u7d20\u5c06\u6839\u636e\u5bf9\u5e94\u7684\u6570\u636e\u7c7b\u578b\u800c\u88ab\u8d4b\u4e88\u9ed8\u8ba4\u7684\u96f6\u503c\u3002\n\t\t<\/li>\n<\/ul>\n<\/blockquote>\n<ul>\n<li>\n\t\t3\u3001\u5982\u679c\u7c7b\u5b57\u6bb5\u7684\u5b57\u6bb5\u5c5e\u6027\u8868\u4e2d\u5b58\u5728<code>ConstantValue<\/code>\u5c5e\u6027\uff0c\u5373\u540c\u65f6\u88abfinal\u548cstatic\u4fee\u9970\uff0c\u90a3\u4e48\u5728\u51c6\u5907\u9636\u6bb5\u53d8\u91cfvalue\u5c31\u4f1a\u88ab\u521d\u59cb\u5316\u4e3aConstValue\u5c5e\u6027\u6240\u6307\u5b9a\u7684\u503c\u3002\n\t<\/li>\n<\/ul>\n<p>\n\t\u5047\u8bbe\u4e0a\u9762\u7684\u7c7b\u53d8\u91cfvalue\u88ab\u5b9a\u4e49\u4e3a\uff1a&nbsp;<code>public static final int value = 3<\/code>\uff1b\n<\/p>\n<p>\n\t\u7f16\u8bd1\u65f6Javac\u5c06\u4f1a\u4e3avalue\u751f\u6210ConstantValue\u5c5e\u6027\uff0c\u5728\u51c6\u5907\u9636\u6bb5\u865a\u62df\u673a\u5c31\u4f1a\u6839\u636e<code>ConstantValue<\/code>\u7684\u8bbe\u7f6e\u5c06value\u8d4b\u503c\u4e3a3\u3002\u6211\u4eec\u53ef\u4ee5\u7406\u89e3\u4e3astatic final\u5e38\u91cf\u5728\u7f16\u8bd1\u671f\u5c31\u5c06\u5176\u7ed3\u679c\u653e\u5165\u4e86\u8c03\u7528\u5b83\u7684\u7c7b\u7684\u5e38\u91cf\u6c60\u4e2d\n<\/p>\n<p>\n\t<strong>\u89e3\u6790\uff1a\u628a\u7c7b\u4e2d\u7684\u7b26\u53f7\u5f15\u7528\u8f6c\u6362\u4e3a\u76f4\u63a5\u5f15\u7528<\/strong>\n<\/p>\n<p>\n\t\u89e3\u6790\u9636\u6bb5\u662f\u865a\u62df\u673a\u5c06\u5e38\u91cf\u6c60\u5185\u7684\u7b26\u53f7\u5f15\u7528\u66ff\u6362\u4e3a\u76f4\u63a5\u5f15\u7528\u7684\u8fc7\u7a0b\uff0c\u89e3\u6790\u52a8\u4f5c\u4e3b\u8981\u9488\u5bf9\u7c7b\u6216\u63a5\u53e3\u3001\u5b57\u6bb5\u3001\u7c7b\u65b9\u6cd5\u3001\u63a5\u53e3\u65b9\u6cd5\u3001\u65b9\u6cd5\u7c7b\u578b\u3001\u65b9\u6cd5\u53e5\u67c4\u548c\u8c03\u7528\u70b9\u9650\u5b9a\u7b267\u7c7b\u7b26\u53f7\u5f15\u7528\u8fdb\u884c\u3002<em>\u7b26\u53f7\u5f15\u7528<\/em>\u5c31\u662f\u4e00\u7ec4\u7b26\u53f7\u6765\u63cf\u8ff0\u76ee\u6807\uff0c\u53ef\u4ee5\u662f\u4efb\u4f55\u5b57\u9762\u91cf\u3002\n<\/p>\n<p>\n\t<em>\u76f4\u63a5\u5f15\u7528<\/em>\u5c31\u662f\u76f4\u63a5\u6307\u5411\u76ee\u6807\u7684\u6307\u9488\u3001\u76f8\u5bf9\u504f\u79fb\u91cf\u6216\u4e00\u4e2a\u95f4\u63a5\u5b9a\u4f4d\u5230\u76ee\u6807\u7684\u53e5\u67c4\u3002\n<\/p>\n<p>\n\t<strong>\u521d\u59cb\u5316<\/strong>\n<\/p>\n<p>\n\t\u521d\u59cb\u5316\uff0c\u4e3a\u7c7b\u7684\u9759\u6001\u53d8\u91cf\u8d4b\u4e88\u6b63\u786e\u7684\u521d\u59cb\u503c\uff0cJVM\u8d1f\u8d23\u5bf9\u7c7b\u8fdb\u884c\u521d\u59cb\u5316\uff0c\u4e3b\u8981\u5bf9\u7c7b\u53d8\u91cf\u8fdb\u884c\u521d\u59cb\u5316\u3002\u5728Java\u4e2d\u5bf9\u7c7b\u53d8\u91cf\u8fdb\u884c\u521d\u59cb\u503c\u8bbe\u5b9a\u6709\u4e24\u79cd\u65b9\u5f0f\uff1a\n<\/p>\n<ul>\n<li>\n\t\t\u2460\u58f0\u660e\u7c7b\u53d8\u91cf\u662f\u6307\u5b9a\u521d\u59cb\u503c\n\t<\/li>\n<li>\n\t\t\u2461\u4f7f\u7528\u9759\u6001\u4ee3\u7801\u5757\u4e3a\u7c7b\u53d8\u91cf\u6307\u5b9a\u521d\u59cb\u503c\n\t<\/li>\n<\/ul>\n<p>\n\tJVM\u521d\u59cb\u5316\u6b65\u9aa4\n<\/p>\n<ul>\n<li>\n\t\t1\u3001\u5047\u5982\u8fd9\u4e2a\u7c7b\u8fd8\u6ca1\u6709\u88ab\u52a0\u8f7d\u548c\u8fde\u63a5\uff0c\u5219\u7a0b\u5e8f\u5148\u52a0\u8f7d\u5e76\u8fde\u63a5\u8be5\u7c7b\n\t<\/li>\n<li>\n\t\t2\u3001\u5047\u5982\u8be5\u7c7b\u7684\u76f4\u63a5\u7236\u7c7b\u8fd8\u6ca1\u6709\u88ab\u521d\u59cb\u5316\uff0c\u5219\u5148\u521d\u59cb\u5316\u5176\u76f4\u63a5\u7236\u7c7b\n\t<\/li>\n<li>\n\t\t3\u3001\u5047\u5982\u7c7b\u4e2d\u6709\u521d\u59cb\u5316\u8bed\u53e5\uff0c\u5219\u7cfb\u7edf\u4f9d\u6b21\u6267\u884c\u8fd9\u4e9b\u521d\u59cb\u5316\u8bed\u53e5\n\t<\/li>\n<\/ul>\n<p>\n\t\u7c7b\u521d\u59cb\u5316\u65f6\u673a\uff1a\u53ea\u6709\u5f53\u5bf9\u7c7b\u7684\u4e3b\u52a8\u4f7f\u7528\u7684\u65f6\u5019\u624d\u4f1a\u5bfc\u81f4\u7c7b\u7684\u521d\u59cb\u5316\uff0c\u7c7b\u7684\u4e3b\u52a8\u4f7f\u7528\u5305\u62ec\u4ee5\u4e0b\u516d\u79cd\uff1a\n<\/p>\n<ul>\n<li>\n\t\t\u521b\u5efa\u7c7b\u7684\u5b9e\u4f8b\uff0c\u4e5f\u5c31\u662fnew\u7684\u65b9\u5f0f\n\t<\/li>\n<li>\n\t\t\u8bbf\u95ee\u67d0\u4e2a\u7c7b\u6216\u63a5\u53e3\u7684\u9759\u6001\u53d8\u91cf\uff0c\u6216\u8005\u5bf9\u8be5\u9759\u6001\u53d8\u91cf\u8d4b\u503c\n\t<\/li>\n<li>\n\t\t\u8c03\u7528\u7c7b\u7684\u9759\u6001\u65b9\u6cd5\n\t<\/li>\n<li>\n\t\t\u53cd\u5c04\uff08\u5982<code>Class.forName(&ldquo;com.shengsiyuan.Test&rdquo;)<\/code>\uff09\n\t<\/li>\n<li>\n\t\t\u521d\u59cb\u5316\u67d0\u4e2a\u7c7b\u7684\u5b50\u7c7b\uff0c\u5219\u5176\u7236\u7c7b\u4e5f\u4f1a\u88ab\u521d\u59cb\u5316\n\t<\/li>\n<li>\n\t\tJava\u865a\u62df\u673a\u542f\u52a8\u65f6\u88ab\u6807\u660e\u4e3a\u542f\u52a8\u7c7b\u7684\u7c7b\uff08<code>Java Test<\/code>\uff09\uff0c\u76f4\u63a5\u4f7f\u7528<code>java.exe<\/code>\u547d\u4ee4\u6765\u8fd0\u884c\u67d0\u4e2a\u4e3b\u7c7b\n\t<\/li>\n<\/ul>\n<p>\n\t<strong>\u7ed3\u675f\u751f\u547d\u5468\u671f<\/strong>\n<\/p>\n<p>\n\t\u5728\u5982\u4e0b\u51e0\u79cd\u60c5\u51b5\u4e0b\uff0cJava\u865a\u62df\u673a\u5c06\u7ed3\u675f\u751f\u547d\u5468\u671f\n<\/p>\n<ul>\n<li>\n\t\t\u6267\u884c\u4e86<code>System.exit()<\/code>\u65b9\u6cd5\n\t<\/li>\n<li>\n\t\t\u7a0b\u5e8f\u6b63\u5e38\u6267\u884c\u7ed3\u675f\n\t<\/li>\n<li>\n\t\t\u7a0b\u5e8f\u5728\u6267\u884c\u8fc7\u7a0b\u4e2d\u9047\u5230\u4e86\u5f02\u5e38\u6216\u9519\u8bef\u800c\u5f02\u5e38\u7ec8\u6b62\n\t<\/li>\n<li>\n\t\t\u7531\u4e8e\u64cd\u4f5c\u7cfb\u7edf\u51fa\u73b0\u9519\u8bef\u800c\u5bfc\u81f4Java\u865a\u62df\u673a\u8fdb\u7a0b\u7ec8\u6b62\n\t<\/li>\n<\/ul>\n<p>\n\t\u6700\u540e\u5982\u679c\u5927\u5bb6\u89c9\u5f97\u5199\u7684\u53ef\u4ee5\uff0c\u6216\u8005\u6709\u4ec0\u4e48\u7591\u95ee\uff0c\u53ef\u4ee5\u5173\u6ce8\u6211\u7684\u5fae\u4fe1\u516c\u4f17\u53f7\u8fdb\u7fa4\u8fdb\u884c\u4ea4\u6d41\u3002\u4e5f\u53ef\u52a0QQ1\u7fa4\uff1a135430763\uff0cQQ2\u7fa4\uff1a454796847\uff0cQQ3\u7fa4\uff1a187424846\u3002QQ\u7fa4\u8fdb\u7fa4\u5bc6\u7801\uff1axttblog\uff0c\u60f3\u52a0\u5fae\u4fe1\u7fa4\u7684\u670b\u53cb\uff0c\u53ef\u4ee5\u5fae\u4fe1\u641c\u7d22\uff1axmtxtt\uff0c\u5907\u6ce8\uff1a&ldquo;xttblog&rdquo;\uff0c\u6dfb\u52a0\u52a9\u7406\u5fae\u4fe1\u62c9\u4f60\u8fdb\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u53ef\u6dfb\u52a0\u52a9\u7406\u5fae\u4fe1\u8fdb\u884c\u6c9f\u901a\uff01<\/p>\n<!-- <audio autoplay=\"autoplay\" height=\"100\" width=\"100\" hidden=\"true\"><source src=\"https:\/\/c.coka.la\/orAvPR.mp3\" type=\"audio\/mp3\"\/><\/audio><img decoding=\"async\" src=\"https:\/\/images.weserv.nl\/?url=https:\/\/ws3.sinaimg.cn\/large\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/> --><p><!-- <img decoding=\"async\" src=\"https:\/\/raw.githubusercontent.com\/xmt1139057136\/xttblog\/master\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/>--><img decoding=\"async\" src=\"https:\/\/saas.51autoparts.cn\/api\/admin\/sys-file\/oss\/file?fileName=84db51f8561e448f9a4fda2eff0811f9.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/><\/p><p>\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01<b>\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1a<font color=\"red\">xttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p><p>\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a<a href=\"https:\/\/www.xttblog.com\">\u4e1a\u4f59\u8349<\/a>\uff1a &raquo; <a href=\"https:\/\/www.xttblog.com\/?p=2765\">Java \u7c7b\u7684\u751f\u547d\u5468\u671f<\/a><\/p><!-- <div class=\"bd-reward-stl\"><button id=\"bdRewardBtn\"><span><\/span><\/button><\/div> -->","protected":false},"excerpt":{"rendered":"<p>Java \u4e4b\u6240\u4ee5\u6d41\u884c\u662f\u56e0\u4e3a Java \u603b\u6709\u4ece\u51fa\u4e0d\u7a77\u7684\u65b0\u6846\u67b6\u63a8\u51fa\u3002Java \u4e4b\u6240\u4ee5\u88ab\u4f17\u591a\u7684\u5f00\u53d1\u8005\u652f\u6301\u662f\u56e0\u4e3a\u5b83\u5728\u4f17 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[69,731,1613,314,946],"class_list":["post-2765","post","type-post","status-publish","format-standard","hentry","category-java","tag-java","tag-jvm","tag-jvm-sandbox","tag-taobaojvm","tag-946"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/2765","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2765"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/2765\/revisions"}],"predecessor-version":[{"id":2766,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/2765\/revisions\/2766"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2765"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2765"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2765"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}