{"id":1000,"date":"2018-11-22T15:02:18","date_gmt":"2018-11-22T06:02:18","guid":{"rendered":"https:\/\/vongg.com\/?p=1000"},"modified":"2018-11-22T15:04:36","modified_gmt":"2018-11-22T06:04:36","slug":"java%e3%82%b3%e3%83%a1%e3%83%b3%e3%83%88_%ef%bd%8a%ef%bd%96%ef%bd%8d%e5%86%85%e9%83%a8%e8%a9%b3%e7%b4%b0%e5%88%86%e6%9e%90","status":"publish","type":"post","link":"https:\/\/vongg.com\/?p=1000","title":{"rendered":"java\u30b3\u30e1\u30f3\u30c8_\uff2a\uff36\uff2d\u5185\u90e8\u8a73\u7d30\u5206\u6790"},"content":{"rendered":"\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
java\u547d\u4ee4<\/td>\n<\/td>\n<\/tr>\n
<\/td>\nhttp:\/\/blog.csdn.net\/huaweitman\/article\/details\/78122723<\/a><\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/tr>\n
Java\u547d\u4ee4\u5b66\u4e60\u7cfb\u5217<\/td>\n<\/tr>\n
<\/td>\nhttp:\/\/www.hollischuang.com\/archives\/tag\/java%E5%91%BD%E4%BB%A4%E5%AD%A6%E4%B9%A0%E7%B3%BB%E5%88%97<\/a><\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/tr>\n
<\/td>\njhat<\/strong><\/td>\n<\/tr>\n
<\/td>\n\u529f\u80fd<\/strong><\/td>\n<\/tr>\n
<\/td>\n\u4e00\u822c\u4e0ejmap\u642d\u914d\u4f7f\u7528\uff0c\u7528\u6765\u5206\u6790jmap\u751f\u6210\u7684\u5806\u8f6c\u50a8\u6587\u4ef6\u3002<\/td>\n<\/tr>\n
<\/td>\n\u7531\u4e8e\u6709\u5f88\u591a\u53ef\u89c6\u5316\u5de5\u5177\uff08Eclipse Memory Analyzer \u3001IBM HeapAnalyzer\uff09\u53ef\u4ee5\u66ff\u4ee3\uff0c\u6240\u4ee5\u5f88\u5c11\u7528\u3002\u4e0d\u8fc7\u5728\u6ca1\u6709\u53ef\u89c6\u5316\u5de5\u5177\u7684\u673a\u5668\u4e0a\u4e5f\u662f\u53ef\u7528\u7684\u3002<\/td>\n<\/tr>\n
<\/td>\n\u5e38\u7528\u6307\u4ee4<\/strong><\/td>\n<\/tr>\n
<\/td>\njmap -dump:format=b,file=heapDump 3331\u00a0+\u00a0jhat heapDump\uff1a\u89e3\u6790Java\u5806\u8f6c\u50a8\u6587\u4ef6,\u5e76\u542f\u52a8\u4e00\u4e2a web server<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/tr>\n
\u30d2\u30fc\u30d7\u30c0\u30f3\u30d7\u3092Eclipse Memory Analyzer\u3067\u89e3\u6790\u3057\u3088\u3046\uff01<\/td>\n<\/tr>\n
<\/td>\nhttp:\/\/tech.furyu.jp\/blog\/?p=3554<\/a><\/td>\n<\/tr>\n
<\/td>\nhttps:\/\/www.eclipse.org\/mat\/<\/a><\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/tr>\n
jcnsole<\/strong><\/td>\n<\/td>\n<\/tr>\n
jvisualvm<\/strong><\/td>\n<\/tr>\n
<\/td>\nhttps:\/\/visualvm.github.io\/index.html<\/a><\/td>\n<\/tr>\n
Eclipse Memory Analyzer<\/strong><\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/tr>\n
IBM HeapAnalyzer \u4f7f\u7528\u65b9\u6cd5<\/strong><\/td>\n<\/tr>\n
<\/td>\nhttps:\/\/www.ibm.com\/developerworks\/community\/wikis\/home?lang=en#!\/wiki\/W3b463571efc8_4f02_99af_3cbc0da42ddc\/page\/IBM%20HeapAnalyzer%20Information<\/a><\/td>\n<\/tr>\n
<\/td>\nhttp:\/\/jinwooh.wixsite.com\/java<\/a><\/td>\n<\/tr>\n
<\/td>\njava -Xmx1000m -jar D:\\00_tool\\IBM_HeapAnalyzer.jar<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/tr>\n
\u5982\u4f55\u7cbe\u786e\u5730\u6d4b\u91cfjava\u5bf9\u8c61\u7684\u5927\u5c0f<\/td>\n<\/tr>\n
<\/td>\nhttp:\/\/blog.csdn.net\/xorxos\/article\/details\/51707746<\/a><\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/tr>\n
java\u865a\u62df\u673a\u89c4\u8303(java se 7\u7248) pdf<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n
\u7ebf\u7a0bDump\u7684\u5206\u6790<\/td>\n<\/tr>\n
<\/td>\nhttp:\/\/www.hollischuang.com\/archives\/110<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

\uff23\uff4c\uff41\uff53\uff53\u30d5\u30a1\u30a4\u30eb\u306e\u4e2d\u8eab\u3067\uff2a\uff41\uff56\uff41\u306e\u3044\u308d\u3044\u308d\u306a\u6982\u5ff5\u3092\u7406\u89e3\u3059\u308b\u3002<\/p>\n

Java\u5b57\u8282\u7801\u751f\u6210\u5f00\u6e90\u6846\u67b6\u4ecb\u7ecd–Javassist\uff1a
\nclass\u6587\u4ef6\u7528jd-gui\u3067\u898b\u308c\u308b\u3002<\/p>\n

\u8fd9\u4e2a\u8fd0\u884c\u65f6\u751f\u6210\u7684\u52a8\u6001\u4ee3\u7406\u5bf9\u8c61\u662f\u53ef\u4ee5\u5bfc\u51fa\u5230\u6587\u4ef6\u7684\uff0c\u65b9\u6cd5\u6709\u4e24\u79cd<\/p>\n

1. \u5728\u4ee3\u7801\u4e2d\u52a0\u5165System.setProperty(“sun.misc.ProxyGenerator.saveGeneratedFiles”, “true”);
\n2. \u5728\u8fd0\u884c\u65f6\u52a0\u5165jvm \u53c2\u6570 -Dsun.misc.ProxyGenerator.saveGeneratedFiles=true<\/p>\n

java \u30b3\u30de\u30f3\u30c9\u306e\u5f8c\u308d\u306b\u3000-verbose:class \u3067\uff23\uff4c\uff41\uff53\uff53\u306e\uff2c\uff4f\uff41\uff44\u60c5\u5831\u304c\u8868\u793a\u3067\u304d\u308b\u3002<\/p>\n

\u88c5\u8f7d\u65f6\u673a\u4e0e\u65b9\u5f0f
\n\u8bfb\u8005\u53ef\u4ed4\u7ec6\u67e5\u770b\u4e24\u8005\u7684\u533a\u522b\uff0c\u53ef\u4ee5\u53d1\u73b0\u53ea\u6709\u5f53 \u7c7bA \u88ab\u4f7f\u7528\u65f6\uff0c\u8be5\u7c7b\u5bf9\u5e94\u7684 A.class \u624d\u4f1a\u88ab\u88c5\u8f7d\u3002\u603b\u7ed3\u8d77\u6765\uff0c\u4e00\u4e2a\u7c7b\u7684\u52a0\u8f7d\u6761\u4ef6\u662f\uff1a
\n1. \u5f53\u4f7f\u7528 new \u64cd\u4f5c\u7b26\u6267\u884c\u67d0\u7c7b\u65f6\u3002\u6bd4\u5982 SomeClass some = new SomeClass()\u3002
\n2. \u5f53\u5df2\u52a0\u8f7d\u7c7b\u4e2d\u6709\u4e00\u4e2a\u9759\u6001\u5f15\u7528\u6307\u5411\u67d0\u7c7b\u65f6\u3002 \u6bd4\u5982 System.out \u3002
\n\u521d\u59cb\u5316\u65f6\u673a\u4e0e\u65b9\u5f0f
\n\u5728Java\u4e2d\uff0c\u4e00\u4e2a\u7c7b\u88ab\u52a0\u8f7d\u5b8c\u6bd5\u540e\uff0c\u4e0d\u4f1a\u7acb\u5373\u6267\u884c\u7c7b\u7684\u521d\u59cb\u5316\u5de5\u4f5c\u3002\u5f53\u7c7b\u4e2d\u7684\u7b26\u53f7\u88ab\u7b2c\u4e00\u6b21\u4f7f\u7528\u65f6\uff0c\u8be5\u7c7b\u624d\u5f00\u59cb\u88ab\u521d\u59cb\u5316\u3002
\n\u5728\u521d\u59cb\u5316\u987a\u5e8f\u65b9\u9762\uff1aJVM\u4f1a\u9996\u5148\u5b8c\u6210\u7236\u7c7b\u7684\u521d\u59cb\u5316\uff0c\u518d\u6267\u884c\u5b50\u7c7b\u7684\u521d\u59cb\u5316\uff1b\u5bf9\u4e8e\u7c7b\u4e2d\u9759\u6001\u7684\u5e38\u91cf\uff0c\u4f1a\u6309\u7167\u5b9a\u4e49\u7684\u5148\u540e\u987a\u5e8f\u5b8c\u6210\u521d\u59cb\u5316\uff1b\u6700\u540e\u4f1a\u4fdd\u8bc1\u5728\u521d\u59cb\u5316\u4e4b\u524d\uff0c\u6bcf\u4e2a\u5c5e\u6027\u90fd\u4f1a\u6709\u4e00\u4e2a\u9ed8\u8ba4\u503c<\/p>\n

JVM \u5982\u4f55\u88c5\u8f7d\u548c\u521d\u59cb\u5316\u4e00\u4e2aJava class(\u7c7b)\u00a0\u00a0\u00a0\u00a0http:\/\/www.tiantianbianma.com\/jvm-load-class.html\/
\n\u6df1\u5165\u5206\u6790Java\u7684HelloWorld\u7a0b\u5e8f\u00a0\u00a0\u00a0\u00a0http:\/\/www.tiantianbianma.com\/java-helloworld.html\/
\n\u6df1\u5165\u5206\u6790Java\u89c4\u8303\u4e2dJVM\u7684\u5185\u5b58\u5e03\u5c40\u6a21\u578b\u00a0\u00a0\u00a0\u00a0http:\/\/www.tiantianbianma.com\/jvm-memory.html\/
\nJava\u7a0b\u5e8f\u5458\u7684\u6280\u672f\u8fdb\u9636\u6210\u957f\u8def\u7ebf\u00a0\u00a0\u00a0\u00a0http:\/\/www.tiantianbianma.com\/java-study-guide.html\/<\/p>\n

\u6df1\u5165\u7406\u89e3Java\u4e2d\u4e3a\u4ec0\u4e48\u5185\u90e8\u7c7b\u53ef\u4ee5\u8bbf\u95ee\u5916\u90e8\u7c7b\u7684\u6210\u5458 \u00a0\u00a0\u00a0\u00a0\u00a0http:\/\/blog.csdn.net\/zhangjg_blog\/article\/details\/20000769<\/p>\n

Java\u77e5\u8bc6\u70b9\u603b\u7ed3\u7bc7\uff1aJava\u7684\u5185\u5b58\u6a21\u578b\u3001\u7ebf\u7a0b\u5b89\u5168\u3001\u8fdb\u7a0b\u548c\u7ebf\u7a0b\u7684\u533a\u522b
\nhttp:\/\/blog.csdn.net\/zhongwen7710\/article\/details\/25008183<\/p>\n

\u300a\u6210\u795e\u4e4b\u8def-\u57fa\u7840\u7bc7\u300bJVM\u2014\u2014Java\u5185\u5b58\u76f8\u5173(\u5df2\u5b8c\u7ed3)<\/p>\n

\u300a\u6210\u795e\u4e4b\u8def-\u57fa\u7840\u7bc7\u300bJVM\u2014\u2014Java\u5185\u5b58\u6a21\u578b(\u5df2\u5b8c\u7ed3)<\/a><\/p><\/blockquote>\n