{"id":855,"date":"2018-07-20T08:53:10","date_gmt":"2018-07-20T00:53:10","guid":{"rendered":"https:\/\/blog.jsjs.org\/?p=855"},"modified":"2018-07-20T08:53:10","modified_gmt":"2018-07-20T00:53:10","slug":"%e3%80%90jvm%e3%80%91jvm%e7%b3%bb%e5%88%97%e4%b9%8bjvm%e4%bd%93%e7%b3%bb%ef%bc%88%e4%b8%80%ef%bc%89","status":"publish","type":"post","link":"https:\/\/blog.jsjs.org\/?p=855","title":{"rendered":"\u3010JVM\u3011JVM\u7cfb\u5217\u4e4bJVM\u4f53\u7cfb\uff08\u4e00\uff09"},"content":{"rendered":"<p><strong>\u4e00\u3001\u524d\u8a00<\/strong><\/p>\n<p><strong>\u3000\u3000<\/strong>\u4e3a\u4ec0\u4e48\u8981\u5b66\u4e60\u4e86\u89e3Java\u865a\u62df\u673a<\/p>\n<p>1.\u6211\u4eec\u9700\u8981\u66f4\u52a0\u6e05\u695a\u7684\u4e86\u89e3Java\u5e95\u5c42\u662f\u5982\u4f55\u8fd0\u4f5c\u7684\uff0c\u6709\u5229\u4e8e\u6211\u4eec\u66f4\u6df1\u523b\u7684\u5b66\u4e60\u597dJava\u3002<\/p>\n<p>2.\u5bf9\u6211\u4eec\u8c03\u8bd5\u9519\u8bef\u63d0\u4f9b\u5f88\u5b9d\u8d35\u7684\u7ecf\u9a8c\u3002<\/p>\n<p>3.\u8fd9\u662f\u5408\u683c\u7684Java\u7a0b\u5e8f\u5fc5\u987b\u8981\u4e86\u89e3\u7684\u5185\u5bb9\u3002<\/p>\n<p>\u57fa\u4e8e\u6b64\uff0c\u7b14\u8005\u6253\u7b97\u51fa\u4e00\u4e2aJava\u865a\u62df\u673a\u7684\u7cfb\u5217\uff0c\u52a0\u6df1\u81ea\u5df1\u5bf9\u77e5\u8bc6\u70b9\u7684\u7406\u89e3\uff0c\u540c\u65f6\u4e5f\u65b9\u4fbf\u5404\u4f4d\u6709\u9700\u8981\u7684\u56ed\u53cb\u3002<\/p>\n<p><strong>\u4e8c\u3001Java\u865a\u62df\u673a\u7684\u5b9a\u4e49<\/strong><\/p>\n<p>Java\u865a\u62df\u673a\uff08Java Virtual Machine\uff09\uff0c\u7b80\u79f0JVM\u3002\u5f53\u6211\u4eec\u8bf4\u8d77Java\u865a\u62df\u673a\u65f6\uff0c\u53ef\u80fd\u6307\u7684\u662f\u5982\u4e0b\u4e09\u79cd\u4e0d\u540c\u7684\u4e1c\u897f\uff1a<\/p>\n<p>1.\u62bd\u8c61\u89c4\u8303\u3002<\/p>\n<p>2.\u4e00\u4e2a\u5177\u4f53\u7684\u5b9e\u73b0\u3002<\/p>\n<p>3.\u4e00\u4e2a\u8fd0\u884c\u4e2d\u7684\u865a\u62df\u673a\u5b9e\u4f8b\u3002<\/p>\n<p>Java\u865a\u62df\u673a\u62bd\u8c61\u89c4\u8303\u4ec5\u4ec5\u662f\u4e00\u4e2a\u6982\u5ff5\uff0c\u5728\u300aThe Java Virtual Machine Specification\u300b\u4e2d\u6709\u8be6\u7ec6\u7684\u63cf\u8ff0\u3002\u8be5\u89c4\u8303\u7684\u5b9e\u73b0\uff0c\u53ef\u80fd\u6765\u81ea\u591a\u4e2a\u63d0\u4f9b\u5546\uff0c\u5e76\u5b58\u5728\u4e8e\u591a\u4e2a\u5e73\u53f0\u4e0a\uff0c\u5b83\u6216\u8005\u662f\u5168\u90e8\u7531\u8f6f\u4ef6\u5b9e\u73b0\uff0c\u6216\u8005\u662f\u4ee5\u786c\u4ef6\u548c\u8f6f\u4ef6\u76f8\u7ed3\u5408\u7684\u65b9\u5f0f\u6765\u5b9e\u73b0\u3002\u5f53\u8fd0\u884c\u4e00\u4e2aJava\u7a0b\u5e8f\u7684\u65f6\u5019\uff0c\u4e5f\u5c31\u5728\u8fd0\u884c\u4e00\u4e2aJava\u865a\u62df\u673a\u5b9e\u4f8b\u3002\u6ce8\u610f\uff0c\u6211\u4eec\u6240\u8bf4\u7684Java\u5e73\u53f0\u65e0\u5173\u6027\u662f\u6307class\u6587\u4ef6\u7684\u5e73\u53f0\u65e0\u5173\u6027\uff0cJVM\u662f\u548c\u5e73\u53f0\u76f8\u5173\u7684\uff0c\u4e0d\u540c\u64cd\u4f5c\u7cfb\u7edf\u5bf9\u5e94\u4e0d\u540c\u7684JVM\u3002<\/p>\n<p><strong>\u4e09\u3001Java\u865a\u62df\u673a\u7684\u603b\u4f53\u6846\u67b6\u56fe<\/strong><\/p>\n<p>\u4e0b\u56fe\u662f\u6574\u4e2aJava\u865a\u62df\u673a\u7684\u603b\u4f53\u6846\u67b6\u56fe\uff0c\u4e4b\u540e\u6211\u4eec\u4f1a\u7ecf\u5e38\u6d89\u53ca\u5230\u3002<img decoding=\"async\" src=\"https:\/\/images2015.cnblogs.com\/blog\/616953\/201602\/616953-20160227093822802-1529068009.png\" alt=\"\" \/><\/p>\n<p><strong>\u56db\u3001Java\u865a\u62df\u673a\u7684\u4f53\u7cfb\u7ed3\u6784<\/strong><\/p>\n<p>\u4e0b\u56fe\u8868\u793a\u4e86Java\u865a\u62df\u673a\u7684\u7ed3\u6784\u6846\u56fe\uff0c\u4e3b\u8981\u63cf\u8ff0\u4e86JVM\u5b50\u7cfb\u7edf\u548c\u5185\u5b58\u533a\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/images2015.cnblogs.com\/blog\/616953\/201602\/616953-20160221214401030-1375432400.png\" alt=\"\" \/><\/p>\n<p><strong>\u4e94\u3001Java\u865a\u62df\u673a\u5404\u7ec4\u6210\u90e8\u5206<\/strong><\/p>\n<p>5.1 \u7c7b\u88c5\u8f7d\u5b50\u7cfb\u7edf<\/p>\n<p>\u7c7b\u88c5\u8f7d\u5b50\u7cfb\u7edf\u8d1f\u8d23\u67e5\u627e\u5e76\u88c5\u8f7d\u7c7b\u578b\uff0cJava\u865a\u62df\u673a\u7531\u4e24\u79cd\u7c7b\u88c5\u8f7d\u5668\uff1a\u542f\u52a8\u7c7b\u88c5\u8f7d\u5668\uff08Java\u865a\u62df\u673a\u5b9e\u73b0\u7684\u4e00\u90e8\u5206\uff09\u548c\u7528\u6237\u81ea\u5b9a\u4e49\u7c7b\u88c5\u8f7d\u5668\uff08Java\u7a0b\u5e8f\u7684\u4e00\u90e8\u5206\uff09\u3002\u7c7b\u88c5\u8f7d\u5b50\u7cfb\u7edf\u8d1f\u8d23\u5b9a\u4f4d\u548c\u5bfc\u5165\u4e8c\u8fdb\u5236class\u6587\u4ef6\uff0c\u5e76\u4e14\u4fdd\u8bc1\u5bfc\u5165\u7c7b\u7684\u6b63\u786e\u6027\uff0c\u4e3a\u7c7b\u53d8\u91cf\u5206\u914d\u5e76\u521d\u59cb\u5316\u5185\u5b58\uff0c\u4ee5\u53ca\u5e2e\u52a9\u89e3\u6790\u7b26\u53f7\u5f15\u7528\u3002\u7c7b\u88c5\u8f7d\u5668\u5fc5\u987b\u4e25\u683c\u6309\u7167\u5982\u4e0b\u987a\u5e8f\u8fdb\u884c\u7c7b\u7684\u88c5\u8f7d\u3002<\/p>\n<p>1\uff09 \u88c5\u8f7d &#8212; \u67e5\u627e\u5e76\u88c5\u8f7d\u7c7b\u578b\u7684\u4e8c\u8fdb\u5236\u6570\u636e<\/p>\n<p>2\uff09 \u8fde\u63a5 &#8212; \u6267\u884c\u9a8c\u8bc1\uff0c\u51c6\u5907\uff0c\u4ee5\u53ca\u89e3\u6790\uff08\u53ef\u9009\uff09\uff0c\u8fde\u63a5\u5206\u4e3a\u5982\u4e0b\u4e09\u4e2a\u6b65\u9aa4<\/p>\n<p>\u9a8c\u8bc1 &#8212; \u786e\u4fdd\u88ab\u5bfc\u5165\u7c7b\u578b\u7684\u6b63\u786e\u6027<\/p>\n<p>\u51c6\u5907 &#8212; \u4e3a\u7c7b\u53d8\u91cf\u5206\u914d\u5185\u5b58\uff0c\u5e76\u5c06\u5176\u521d\u59cb\u5316\u4e3a\u9ed8\u8ba4\u503c<\/p>\n<p>\u89e3\u6790 &#8212; \u628a\u7c7b\u578b\u4e2d\u7684\u7b26\u53f7\u5f15\u7528\u8f6c\u6362\u4e3a\u76f4\u63a5\u5f15\u7528<\/p>\n<p>3\uff09 \u521d\u59cb\u5316 &#8212; \u628a\u7c7b\u53d8\u91cf\u521d\u59cb\u5316\u4e3a\u6b63\u786e\u521d\u59cb\u503c<\/p>\n<p>\u542f\u52a8\u7c7b\u88c5\u8f7d\u5668 &#8212; Java\u865a\u62df\u673a\u5fc5\u987b\u6709\u4e00\u4e2a\u542f\u52a8\u7c7b\u88c5\u8f7d\u5668\uff0c\u7528\u4e8e\u88c5\u8f7d\u53d7\u4fe1\u4efb\u7684\u7c7b\uff0c\u5982Java API\u7684class\u6587\u4ef6\u3002<\/p>\n<p>\u7528\u6237\u81ea\u5b9a\u4e49\u7c7b\u88c5\u8f7d\u5668 &#8212; \u7ee7\u627f\u81eaClassLoader\u7c7b\uff0cClassLoader\u7684\u5982\u4e0b\u56db\u4e2a\u65b9\u6cd5\uff0c\u662f\u901a\u5f80Java\u865a\u62df\u673a\u7684\u901a\u9053\u3002<\/p>\n<p>1. protected final Class defineClass(String name, byte data[], int offset, int length);<\/p>\n<p>2. protected final Class defineClass(String name, byte data[], int offset, int length, ProtectionDomain protectionDomain);<\/p>\n<p>3. protected final Class findSystemClass(String name);<\/p>\n<p>4. protected final void resolveClass(Class c);<\/p>\n<p>\u8fd9\u56db\u4e2a\u65b9\u6cd5\u6d89\u53ca\u5230\u4e86\u88c5\u8f7d\u548c\u8fde\u63a5\u4e24\u4e2a\u9636\u6bb5\uff0cdefineClass\u65b9\u6cd5data\u53c2\u6570\u4e3a\u4e8c\u8fdb\u5236Java Class\u6587\u4ef6\u683c\u5f0f\uff0c\u8868\u793a\u4e00\u4e2a\u65b0\u7684\u53ef\u7528\u7c7b\u578b\uff0c\u4e4b\u540e\u628a\u8fd9\u4e2a\u7c7b\u578b\u5bfc\u5165\u5230\u65b9\u6cd5\u533a\u4e2d\u3002findSystemClass\u7684\u53c2\u6570\u4e3a\u5168\u9650\u5b9a\u540d\uff0c\u901a\u8fc7\u7c7b\u88c5\u8f7d\u5668\u8fdb\u884c\u88c5\u8f7d\u3002resolveClass\u53c2\u6570\u4e3aClass\u5b9e\u4f8b\uff0c\u5b8c\u6210\u8fde\u63a5\u521d\u59cb\u5316\u64cd\u4f5c\u3002<\/p>\n<p>5.2 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&#8212; \u865a\u62df\u673a\u5fc5\u987b\u8981\u4e3a\u6bcf\u4e2a\u88ab\u88c5\u8f7d\u7684\u7c7b\u578b\u7ef4\u62a4\u4e00\u4e2a\u5e38\u91cf\u6c60\u3002\u5e38\u91cf\u6c60\u5c31\u662f\u8be5\u7c7b\u578b\u6240\u7528\u5e38\u91cf\u7684\u4e00\u4e2a\u6709\u5e8f\u96c6\u5408\uff0c\u5305\u62ec\u76f4\u63a5\u5e38\u91cf\u548c\u5bf9\u5176\u4ed6\u7c7b\u578b\u3001\u5b57\u6bb5\u548c\u65b9\u6cd5\u7684\u7b26\u53f7\u5f15\u7528\u3002\u5b83\u5728Java\u7a0b\u5e8f\u7684\u52a8\u6001\u8fde\u63a5\u4e2d\u8d77\u7740\u6838\u5fc3\u4f5c\u7528\u3002<\/p>\n<p>5.3 \u5806<\/p>\n<p>\u4e00\u4e2a\u865a\u62df\u673a\u5b9e\u4f8b\u53ea\u5bf9\u5e94\u4e00\u4e2a\u5806\u7a7a\u95f4\uff0c\u5806\u662f\u7ebf\u7a0b\u5171\u4eab\u7684\u3002\u5806\u7a7a\u95f4\u662f\u5b58\u653e\u5bf9\u8c61\u5b9e\u4f8b\u7684\u5730\u65b9\uff0c\u51e0\u4e4e\u6240\u6709\u5bf9\u8c61\u5b9e\u4f8b\u90fd\u5728\u8fd9\u91cc\u5206\u914d\u3002\u5806\u4e5f\u662f\u5783\u573e\u6536\u96c6\u5668\u7ba1\u7406\u7684\u4e3b\u8981\u533a\u57df\u3002\u5806\u53ef\u4ee5\u5904\u4e8e\u7269\u7406\u4e0a\u4e0d\u8fde\u7eed\u7684\u5185\u5b58\u7a7a\u95f4\u4e2d\uff0c\u53ea\u8981\u903b\u8f91\u4e0a\u76f8\u8fde\u5c31\u884c,\u5f53\u5806\u4e2d\u6ca1\u6709\u8db3\u591f\u7684\u5185\u5b58\u8fdb\u884c\u5bf9\u8c61\u5b9e\u4f8b\u5206\u914d\u65f6\uff0c\u5e76\u4e14\u5806\u4e5f\u65e0\u6cd5\u6269\u5c55\u65f6\uff0c\u4f1a\u629b\u51faOutOfMemoryError\u5f02\u5e38\u3002<\/p>\n<p>5.4 \u7a0b\u5e8f\u8ba1\u6570\u5668<\/p>\n<p>\u6bcf\u4e2a\u7ebf\u7a0b\u62e5\u6709\u81ea\u5df1\u7684\u7a0b\u5e8f\u8ba1\u6570\u5668\uff0c\u7ebf\u7a0b\u4e4b\u95f4\u7684\u7a0b\u5e8f\u8ba1\u6570\u5668\u4e92\u4e0d\u5f71\u54cd\u3002PC\u5bc4\u5b58\u5668\u7684\u5185\u5bb9\u603b\u662f\u4e0b\u4e00\u6761\u5c06\u88ab\u6267\u884c\u6307\u4ee4\u7684&#8221;\u5730\u5740&#8221;\uff0c\u8fd9\u91cc\u7684&#8221;\u5730\u5740&#8221;\u53ef\u4ee5\u662f\u4e00\u4e2a\u672c\u5730\u6307\u9488\uff0c\u4e5f\u53ef\u4ee5\u662f\u5728\u65b9\u6cd5\u5b57\u8282\u7801\u4e2d\u76f8\u5bf9\u4e8e\u8be5\u65b9\u6cd5\u8d77\u59cb\u6307\u4ee4\u7684\u504f\u79fb\u91cf\u3002\u5982\u679c\u8be5\u7ebf\u7a0b\u6b63\u5728\u6267\u884c\u4e00\u4e2a\u672c\u5730\u65b9\u6cd5\uff0c\u5219\u7a0b\u5e8f\u8ba1\u6570\u5668\u5185\u5bb9\u4e3aundefined\uff0c\u6b64\u533a\u57df\u5728Java\u865a\u62df\u673a\u89c4\u8303\u4e2d\u6ca1\u6709\u89c4\u5b9a\u4efb\u4f55OutOfMemoryError\u60c5\u51b5\u7684\u533a\u57df\u3002<\/p>\n<p>5.5 Java\u6808<\/p>\n<p>Java\u6808\u4e5f\u662f\u7ebf\u7a0b\u79c1\u6709\u7684\uff0c\u865a\u62df\u673a\u53ea\u4f1a\u5bf9\u6808\u8fdb\u884c\u4e24\u79cd\u64cd\u4f5c\uff0c\u4ee5\u5e27\u4e3a\u5355\u4f4d\u7684\u5165\u6808\u548c\u51fa\u6808\u3002\u6bcf\u4e2a\u65b9\u6cd5\u5728\u6267\u884c\u65f6\u90fd\u4f1a\u521b\u5efa\u4e00\u4e2a\u5e27\uff0c\u5e76\u5165\u6808\uff0c\u6210\u4e3a\u5f53\u524d\u5e27\u3002\u6808\u5e27\u7531\u4e09\u90e8\u5206\u7ec4\u6210\uff1a\u5c40\u90e8\u53d8\u91cf\u533a\u3001\u64cd\u4f5c\u6570\u6808\u3001\u5e27\u6570\u636e\u533a\u3002<\/p>\n<p>\u5c40\u90e8\u53d8\u91cf\u533a\u88ab\u7ec4\u7ec7\u4e3a\u4e00\u4e2a\u4ee5\u5b57\u957f\u4e3a\u5355\u4f4d\u3001\u4ece0\u5f00\u59cb\u8ba1\u6570\u7684\u6570\u7ec4\u3002\u5b57\u8282\u7801\u6307\u4ee4\u901a\u8fc7\u4ece0\u5f00\u59cb\u7684\u7d22\u5f15\u6765\u4f7f\u7528\u5176\u4e2d\u7684\u6570\u636e\u3002\u7c7b\u578b\u4e3aint\u3001float\u3001reference\u548creturn Address\u7684\u503c\u5728\u6570\u7ec4\u4e2d\u53ea\u5360\u636e\u4e00\u9879\uff0c\u800c\u7c7b\u578b\u4e3abyte\u3001short\u548cchar\u7684\u503c\u5b58\u5165\u65f6\u90fd\u4f1a\u8f6c\u5316\u4e3aint\u7c7b\u578b\uff0c\u4e5f\u5360\u4e00\u9879\uff0c\u800clong\u3001double\u5219\u8fde\u7eed\u5360\u636e\u4e24\u9879\u3002<\/p>\n<p>\u5173\u4e8e\u5c40\u90e8\u53d8\u91cf\u533a\u7ed9\u51fa\u5982\u4e0b\u4e00\u4e2a\u4f8b\u5b50\u3002<\/p>\n<div class=\"cnblogs_code\"><img decoding=\"async\" id=\"code_img_opened_142b20be-f615-40d1-ad36-9d6521a35fbc\" class=\"code_img_opened\" src=\"https:\/\/images.cnblogs.com\/OutliningIndicators\/ExpandedBlockStart.gif\" alt=\"\" \/><\/p>\n<div id=\"cnblogs_code_open_142b20be-f615-40d1-ad36-9d6521a35fbc\" class=\"cnblogs_code_hide\">\n<div class=\"cnblogs_code_toolbar\"><span class=\"cnblogs_code_copy\"><a title=\"\u590d\u5236\u4ee3\u7801\"><img decoding=\"async\" src=\"http:\/\/common.cnblogs.com\/images\/copycode.gif\" alt=\"\u590d\u5236\u4ee3\u7801\" \/><\/a><\/span><\/div>\n<pre>public class Example {\n    public static int classMethod(int i, long l, float f, double d, Object o, byte b) {\n        return 0;\n    }\n\n    public int instanceMethod(char c, double d, short s, boolean b) {\n        return 0;\n    }\n}<\/pre>\n<div class=\"cnblogs_code_toolbar\"><span class=\"cnblogs_code_copy\"><a title=\"\u590d\u5236\u4ee3\u7801\"><img decoding=\"async\" src=\"http:\/\/common.cnblogs.com\/images\/copycode.gif\" alt=\"\u590d\u5236\u4ee3\u7801\" \/><\/a><\/span><\/div>\n<\/div>\n<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/images2015.cnblogs.com\/blog\/616953\/201602\/616953-20160221210455436-1738098020.png\" alt=\"\" \/><\/p>\n<p>\u53ef\u4ee5\u770b\u5230\u7c7b\u65b9\u6cd5\u7684\u9996\u9879\u4e2d\u6ca1\u6709\u9690\u542b\u7684this\u6307\u9488\uff0c\u800c\u5bf9\u8c61\u65b9\u6cd5\u5219\u4f1a\u9690\u542bthis\u6307\u9488\u3002\u5e76\u4e14byte,char,short,boolean\u7c7b\u578b\u5b58\u5165\u5c40\u90e8\u53d8\u91cf\u533a\u7684\u65f6\u5019\u90fd\u4f1a\u88ab\u8f6c\u5316\u6210int\u7c7b\u578b\u503c\uff0c\u5f53\u88ab\u5b58\u56de\u5806\u6216\u8005\u65b9\u6cd5\u533a\u65f6\uff0c\u624d\u4f1a\u8f6c\u5316\u56de\u539f\u6765\u7684\u7c7b\u578b\u3002<\/p>\n<p>\u64cd\u4f5c\u6570\u6808\u88ab\u7ec4\u7ec7\u6210\u4e00\u4e2a\u4ee5\u5b57\u957f\u4e3a\u5355\u4f4d\u7684\u6570\u7ec4\uff0c\u5b83\u662f\u901a\u8fc7\u6807\u51c6\u7684\u6808\u64cd\u4f5c-\u5165\u6808\u548c\u51fa\u6808\u6765\u8fdb\u884c\u8bbf\u95ee\uff0c\u800c\u4e0d\u662f\u901a\u8fc7\u7d22\u5f15\u8bbf\u95ee\u3002\u5165\u6808\u548c\u51fa\u6808\u4e5f\u4f1a\u5b58\u5728\u7c7b\u578b\u7684\u8f6c\u5316\u3002<\/p>\n<p>\u6808\u6570\u636e\u533a\u5b58\u653e\u4e00\u4e9b\u7528\u4e8e\u652f\u6301\u5e38\u91cf\u6c60\u89e3\u6790\u3001\u6b63\u5e38\u65b9\u6cd5\u8fd4\u56de\u4ee5\u53ca\u5f02\u5e38\u6d3e\u53d1\u673a\u5236\u7684\u4fe1\u606f\u3002\u5373\u5c06\u5e38\u91cf\u6c60\u7684\u7b26\u53f7\u5f15\u7528\u8f6c\u5316\u4e3a\u76f4\u63a5\u5730\u5740\u5f15\u7528\u3001\u6062\u590d\u53d1\u8d77\u8c03\u7528\u7684\u65b9\u6cd5\u7684\u5e27\u8fdb\u884c\u6b63\u5e38\u8fd4\u56de\uff0c\u53d1\u751f\u5f02\u5e38\u65f6\u8f6c\u4ea4\u5f02\u5e38\u8868\u8fdb\u884c\u5904\u7406\u3002<\/p>\n<p>5.6 \u672c\u5730\u65b9\u6cd5\u6808<\/p>\n<p>\u8bbf\u95ee\u672c\u5730\u65b9\u5f0f\u65f6\u4f7f\u7528\u5230\u7684\u6808\uff0c\u4e3a\u672c\u5730\u65b9\u6cd5\u670d\u52a1\uff0c\u672c\u5730\u65b9\u6cd5\u533a\u57df\u4e5f\u4f1a\u629b\u51faStackOverflowError\u548cOutOfMemoryError\u5f02\u5e38\u3002<\/p>\n<p>5.7 \u6267\u884c\u5f15\u64ce<\/p>\n<p>\u7528\u6237\u6240\u7f16\u5199\u7684\u7a0b\u5e8f\u5982\u4f55\u8868\u73b0\u6b63\u786e\u7684\u884c\u4e3a\u9700\u8981\u6267\u884c\u5f15\u64ce\u7684\u652f\u6301\uff0c\u6267\u884c\u5f15\u64ce\u6267\u884c\u5b57\u8282\u7801\u6307\u4ee4\uff0c\u5b8c\u6210\u7a0b\u5e8f\u7684\u529f\u80fd\u3002\u540e\u9762\u4f1a\u8be6\u7ec6\u4ecb\u7ecd\u3002<\/p>\n<p>5.8 \u672c\u5730\u65b9\u6cd5\u63a5\u53e3<\/p>\n<p>\u672c\u5730\u65b9\u6cd5\u63a5\u53e3\u79f0\u4e3aJNI\uff0c\u662f\u4e3a\u53ef\u79fb\u690d\u6027\u51c6\u5907\u7684\u3002<\/p>\n<p><strong>\u516d\u3001\u603b\u7ed3<\/strong><\/p>\n<p>\u81f3\u6b64\uff0c\u865a\u62df\u673a\u7684\u7ed3\u6784\u5c31\u5df2\u7ecf\u5927\u4f53\u4ecb\u7ecd\u5b8c\u4e86\uff0c\u73b0\u5728\u6211\u4eec\u53ea\u9700\u8981\u6709\u4e00\u4e2a\u521d\u6b65\u7684\u4e86\u89e3\uff0c\u540e\u9762\u5bf9\u5404\u4e2a\u90e8\u5206\u4f1a\u6709\u66f4\u52a0\u8be6\u7ec6\u7684\u4ecb\u7ecd\u3002\u8c22\u8c22\u5404\u4f4d\u56ed\u53cb\u89c2\u770b~<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001\u524d\u8a00 \u3000\u3000\u4e3a\u4ec0\u4e48\u8981\u5b66\u4e60\u4e86\u89e3Java\u865a\u62df\u673a 1.\u6211\u4eec\u9700\u8981\u66f4\u52a0\u6e05\u695a\u7684\u4e86\u89e3Java\u5e95\u5c42\u662f\u5982\u4f55\u8fd0\u4f5c\u7684\uff0c\u6709\u5229\u4e8e\u6211\u4eec\u66f4\u6df1\u523b\u7684\u5b66\u4e60\u597dJava\u3002 2.\u5bf9\u6211\u4eec\u8c03\u8bd5\u9519\u8bef\u63d0\u4f9b\u5f88\u5b9d\u8d35\u7684\u7ecf\u9a8c\u3002 3.\u8fd9\u662f\u5408\u683c\u7684Java\u7a0b\u5e8f\u5fc5\u987b\u8981\u4e86\u89e3\u7684\u5185\u5bb9\u3002 \u57fa\u4e8e\u6b64\uff0c\u7b14\u8005\u6253\u7b97\u51fa\u4e00\u4e2aJava\u865a\u62df\u673a\u7684\u7cfb\u5217\uff0c\u52a0\u6df1\u81ea\u5df1\u5bf9\u77e5\u8bc6\u70b9\u7684\u7406\u89e3\uff0c\u540c\u65f6\u4e5f\u65b9\u4fbf\u5404\u4f4d\u6709\u9700\u8981\u7684\u56ed\u53cb\u3002 \u4e8c\u3001Java\u865a\u62df\u673a\u7684\u5b9a\u4e49 Java\u865a\u62df\u673a\uff08Java Virtual Machine\uff09\uff0c\u7b80\u79f0JVM\u3002\u5f53\u6211\u4eec\u8bf4\u8d77Java\u865a\u62df\u673a\u65f6\uff0c\u53ef\u80fd\u6307\u7684\u662f\u5982\u4e0b\u4e09\u79cd\u4e0d\u540c\u7684\u4e1c\u897f\uff1a 1.\u62bd\u8c61\u89c4\u8303\u3002 2.\u4e00\u4e2a\u5177\u4f53\u7684\u5b9e\u73b0\u3002 3.\u4e00\u4e2a\u8fd0\u884c\u4e2d\u7684\u865a\u62df\u673a\u5b9e\u4f8b\u3002 Java\u865a\u62df\u673a\u62bd\u8c61\u89c4\u8303\u4ec5\u4ec5\u662f\u4e00\u4e2a\u6982\u5ff5\uff0c\u5728\u300aThe Java Virtual Machine Specification\u300b\u4e2d\u6709\u8be6\u7ec6\u7684\u63cf\u8ff0\u3002\u8be5\u89c4\u8303\u7684\u5b9e\u73b0\uff0c\u53ef\u80fd\u6765\u81ea\u591a\u4e2a\u63d0\u4f9b\u5546\uff0c\u5e76\u5b58\u5728\u4e8e\u591a\u4e2a\u5e73\u53f0\u4e0a\uff0c\u5b83\u6216\u8005\u662f\u5168\u90e8\u7531\u8f6f\u4ef6\u5b9e\u73b0\uff0c\u6216\u8005\u662f\u4ee5\u786c\u4ef6\u548c\u8f6f\u4ef6\u76f8\u7ed3\u5408\u7684\u65b9\u5f0f\u6765\u5b9e\u73b0\u3002\u5f53\u8fd0\u884c\u4e00\u4e2aJava\u7a0b\u5e8f\u7684\u65f6\u5019\uff0c\u4e5f\u5c31\u5728\u8fd0\u884c\u4e00\u4e2aJava\u865a\u62df\u673a\u5b9e\u4f8b\u3002\u6ce8\u610f\uff0c\u6211\u4eec\u6240\u8bf4\u7684Java\u5e73\u53f0\u65e0\u5173\u6027\u662f\u6307class\u6587\u4ef6\u7684\u5e73\u53f0\u65e0\u5173\u6027\uff0cJVM\u662f\u548c\u5e73\u53f0\u76f8\u5173\u7684\uff0c\u4e0d\u540c\u64cd\u4f5c\u7cfb\u7edf\u5bf9\u5e94\u4e0d\u540c\u7684JVM\u3002 \u4e09\u3001Java\u865a\u62df\u673a\u7684\u603b\u4f53\u6846\u67b6\u56fe \u4e0b\u56fe\u662f\u6574\u4e2aJava\u865a\u62df\u673a\u7684\u603b\u4f53\u6846\u67b6\u56fe\uff0c\u4e4b\u540e\u6211\u4eec\u4f1a\u7ecf\u5e38\u6d89\u53ca\u5230\u3002 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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