{"id":19402,"date":"2025-08-20T13:26:18","date_gmt":"2025-08-20T05:26:18","guid":{"rendered":"https:\/\/92it.top\/?p=19402"},"modified":"2025-08-20T13:26:18","modified_gmt":"2025-08-20T05:26:18","slug":"java%e7%ba%bf%e7%a8%8b%e5%a0%86%e6%a0%88%e5%88%86%e6%9e%90%f0%9f%8c%80","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=19402","title":{"rendered":"Java\u7ebf\u7a0b\u5806\u6808\u5206\u6790\ud83c\udf00"},"content":{"rendered":"\n<p>\u3000<\/p>\n\n\n\n<p><strong>\u4ec0\u4e48\u662f Java \u7ebf\u7a0b\u5806\u6808\uff1f<\/strong>\ud83d\udd16<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u7b80\u5355\u8bf4\uff0c<strong>\u7ebf\u7a0b\u5806\u6808\uff08Thread Stack\uff09<\/strong>\u00a0\u5c31\u662f Java \u7a0b\u5e8f\u4e2d\u6bcf\u4e2a\u7ebf\u7a0b \u201c\u6b63\u5728\u505a\u4ec0\u4e48\u201d \u7684 \u201c\u5b9e\u65f6\u5feb\u7167\u201d\u3002\u5b83\u8bb0\u5f55\u4e86\u7ebf\u7a0b\u5f53\u524d\u7684\u72b6\u6001\uff08\u5982\u8fd0\u884c\u4e2d\u3001\u963b\u585e\u3001\u7b49\u5f85\u7b49\uff09\u3001\u8c03\u7528\u7684\u65b9\u6cd5\u94fe\u6761\uff08\u4ece\u5f53\u524d\u6267\u884c\u7684\u65b9\u6cd5\u4e00\u76f4\u5230\u6700\u5f00\u59cb\u7684\u5165\u53e3\u65b9\u6cd5\uff09\uff0c\u4ee5\u53ca\u6bcf\u4e2a\u65b9\u6cd5\u5728\u4ee3\u7801\u4e2d\u7684\u4f4d\u7f6e\uff08\u884c\u53f7\uff09\u3002<\/p>\n\n\n\n<p>\u6253\u4e2a\u6bd4\u65b9\uff1a\u5c31\u50cf\u4f60\u770b\u7535\u5f71\u65f6\u6309\u4e0b\u6682\u505c\u952e\uff0c\u5c4f\u5e55\u4e0a\u4f1a\u663e\u793a\u6bcf\u4e2a\u89d2\u8272\u6b63\u5728\u505a\u7684\u52a8\u4f5c\u548c\u6240\u5904\u7684\u573a\u666f \u2014\u2014 \u7ebf\u7a0b\u5806\u6808\u5c31\u662f Java \u7a0b\u5e8f\u7684 \u201c\u6682\u505c\u5feb\u7167\u201d\uff0c\u80fd\u5e2e\u4f60\u5206\u6790\u7ebf\u7a0b\u5361\u4f4f\u3001\u6b7b\u9501\u3001\u6027\u80fd\u95ee\u9898\u7b49\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u7528\u4e00\u4e2a\u751f\u6d3b\u573a\u666f\u7c7b\u6bd4\uff0c\u518d\u7ed3\u5408\u5b9e\u9645\u4ee3\u7801\u548c\u7ebf\u7a0b\u5806\u6808\u8f93\u51fa\uff0c\u6765\u8be6\u7ec6\u7406\u89e3\u7ebf\u7a0b\u5806\u6808\u3002<\/p>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong>\u4e3a\u4ec0\u4e48\u9700\u8981\u7ebf\u7a0b\u5806\u6808\uff1f<\/strong>\ud83d\udd16<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u5f53\u7a0b\u5e8f\u51fa\u73b0\u95ee\u9898\uff08\u6bd4\u5982\u5361\u7740\u4e0d\u52a8\u3001\u54cd\u5e94\u6162\uff09\u65f6\uff0c\u5149\u770b\u4ee3\u7801\u5f88\u96be\u5b9a\u4f4d\u539f\u56e0\u3002\u7ebf\u7a0b\u5806\u6808\u80fd\u544a\u8bc9\u4f60\uff1a<\/p>\n\n\n\n<ul>\n<li>\u54ea\u4e2a\u7ebf\u7a0b\u5728 \u201c\u5e72\u6d3b\u201d\uff0c\u54ea\u4e2a\u7ebf\u7a0b\u5728 \u201c\u5077\u61d2\u201d\uff08\u963b\u585e \/ \u7b49\u5f85\uff09\uff1b<\/li>\n\n\n\n<li>\u7ebf\u7a0b\u5361\u4f4f\u65f6\u6b63\u5728\u8c03\u7528\u54ea\u4e2a\u65b9\u6cd5\uff0c\u662f\u4e0d\u662f\u5361\u5728\u4e86\u67d0\u4e2a\u9501\u4e0a\uff1b<\/li>\n\n\n\n<li>\u6709\u6ca1\u6709\u6b7b\u9501\uff08\u4e24\u4e2a\u7ebf\u7a0b\u4e92\u76f8\u7b49\u5bf9\u65b9\u7684\u9501\uff09\u3002<\/li>\n\n\n\n<li>\u7cfb\u7edf\u65e0\u7f18\u65e0\u6545CPU\u8fc7\u9ad8<\/li>\n\n\n\n<li>\u7cfb\u7edf\u6302\u8d77\uff0c\u65e0\u54cd\u5e94<\/li>\n\n\n\n<li>\u7cfb\u7edf\u8fd0\u884c\u8d8a\u6765\u8d8a\u6162<\/li>\n\n\n\n<li>\u6027\u80fd\u74f6\u9888\uff0c\u5982\u65e0\u6cd5\u5145\u5206\u5229\u7528CPU\u7b49<\/li>\n\n\n\n<li>\u7ebf\u7a0b\u6b7b\u9501\u3001\u6b7b\u5faa\u73af\uff0c\u997f\u6b7b\u7b49<\/li>\n\n\n\n<li>\u7ebf\u7a0b\u6570\u91cf\u592a\u591a\u5bfc\u81f4\u7cfb\u7edf\u5931\u8d25\uff0c\u5982\u65e0\u6cd5\u521b\u5efa\u7ebf\u7a0b\u7b49<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>Java dump \u7ebf\u7a0b\u5806\u6808\u4fe1\u606f\u7684\u65b9\u6cd5\uff1f<\/strong>\ud83d\udd16<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u5728 Java \u4e2d\uff0c\u83b7\u53d6\u7ebf\u7a0b\u5806\u6808\u5806\u6808\u4fe1\u606f\uff08Thread Dump\uff09\u662f\u6392\u67e5\u7ebf\u7a0b\u6b7b\u9501\u3001\u963b\u585e\u3001CPU \u8fc7\u9ad8\u3001\u54cd\u5e94\u7f13\u6162\u7b49\u95ee\u9898\u7684\u91cd\u8981\u624b\u6bb5\u3002\u4ee5\u4e0b\u662f\u51e0\u79cd\u5e38\u7528\u7684\u7ebf\u7a0b\u5806\u6808\u4fe1\u606f\u5bfc\u51fa\u65b9\u6cd5\uff0c\u9002\u7528\u4e8e\u4e0d\u540c\u573a\u666f\uff1a<\/p>\n\n\n\n<p><strong>\u4f7f\u7528 JDK \u81ea\u5e26\u547d\u4ee4\uff08\u6700\u5e38\u7528\uff09<\/strong>\uff1aJDK \u63d0\u4f9b\u4e86\u591a\u4e2a\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u53ef\u76f4\u63a5\u5bfc\u51fa\u7ebf\u7a0b\u5806\u6808\uff0c\u65e0\u9700\u989d\u5916\u4f9d\u8d56\u3002<\/p>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong><strong>\ud83d\udd39<\/strong>jstack\u00a0\u547d\u4ee4\uff08\u63a8\u8350\uff09<\/strong><\/p>\n\n\n\n<p>jstack\u00a0\u662f\u4e13\u95e8\u7528\u4e8e\u6253\u5370 Java \u7ebf\u7a0b\u5806\u6808\u7684\u5de5\u5177\uff0c\u652f\u6301 Windows\u3001Linux\u3001macOS \u7b49\u7cfb\u7edf\uff0c\u7528\u6cd5\u7b80\u5355\u76f4\u63a5\u3002<\/p>\n\n\n\n<ul>\n<li>\u83b7\u53d6 Java \u8fdb\u7a0b PID<\/li>\n<\/ul>\n\n\n\n<p>\u5148\u901a\u8fc7\u00a0jps\u00a0\u6216\u00a0ps\u00a0\u547d\u4ee4\u627e\u5230\u76ee\u6807 Java \u8fdb\u7a0b\u7684 PID\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u65b9\u6cd51\uff1aJDK\u81ea\u5e26jps\uff08\u76f4\u63a5\u663e\u793aJava\u8fdb\u7a0bPID\u548c\u4e3b\u7c7b\u540d\uff09\njps\n# \u8f93\u51fa\u793a\u4f8b\uff1a12345 MyApplication  \uff0812345\u5373\u4e3aPID\uff09\n\n# \u65b9\u6cd52\uff1a\u901a\u7528ps\u547d\u4ee4\uff08\u9002\u7528\u4e8e\u6240\u6709\u7cfb\u7edf\uff09\nps -ef | grep java  # Linux\/macOS\ntasklist | findstr java  # Windows<\/pre>\n\n\n\n<ul>\n<li>\u5bfc\u51fa\u7ebf\u7a0b\u5806\u6808<\/li>\n<\/ul>\n\n\n\n<p>\u4f7f\u7528\u00a0jstack -l &lt;PID>\u00a0\u5bfc\u51fa\u5806\u6808\uff08-l\u00a0\u8868\u793a\u663e\u793a\u9501\u4fe1\u606f\uff0c\u6709\u52a9\u4e8e\u6392\u67e5\u6b7b\u9501\uff09\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u76f4\u63a5\u8f93\u51fa\u5230\u63a7\u5236\u53f0\njstack -l 12345<\/pre>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong><strong>\ud83d\udd39<\/strong>jcmd\u00a0\u547d\u4ee4\uff08JDK 7+\uff09<\/strong><\/p>\n\n\n\n<p>jcmd\u00a0\u662f JDK 7 \u65b0\u589e\u7684\u591a\u529f\u80fd\u547d\u4ee4\u5de5\u5177\uff0c\u53ef\u66ff\u4ee3\u00a0jstack\u3001jmap\u00a0\u7b49\u591a\u4e2a\u547d\u4ee4\uff0c\u7528\u6cd5\u66f4\u7edf\u4e00\u3002<\/p>\n\n\n\n<ul>\n<li>\u540c\u6837\u5148\u901a\u8fc7\u00a0jps\u00a0\u83b7\u53d6 PID\u3002<\/li>\n\n\n\n<li>\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u5bfc\u51fa\u7ebf\u7a0b\u5806\u6808\uff1a<\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u8f93\u51fa\u5230\u63a7\u5236\u53f0\njcmd 12345 Thread.print\n\n# \u8f93\u51fa\u5230\u6587\u4ef6\njcmd 12345 Thread.print > thread_dump.txt<\/pre>\n\n\n\n<p>\u529f\u80fd\u66f4\u5168\u9762\uff0c\u9664\u4e86\u7ebf\u7a0b\u5806\u6808\uff0c\u8fd8\u80fd\u6267\u884c\u5176\u4ed6 JVM \u8bca\u65ad\u547d\u4ee4\uff08\u5982 GC\u3001\u7c7b\u4fe1\u606f\u7b49\uff09\u3002<\/p>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong>\ud83d\udd39JConsole\uff08JDK \u81ea\u5e26\uff09<\/strong><\/p>\n\n\n\n<p>\u5bf9\u4e8e\u4e0d\u719f\u6089\u547d\u4ee4\u884c\u7684\u5f00\u53d1\u8005\uff0c\u53ef\u4f7f\u7528\u56fe\u5f62\u5316\u5de5\u5177\u76f4\u89c2\u83b7\u53d6\u7ebf\u7a0b\u5806\u6808\u3002<\/p>\n\n\n\n<p>JConsole \u662f JDK \u5185\u7f6e\u7684\u76d1\u63a7\u5de5\u5177\uff0c\u652f\u6301\u7ebf\u7a0b\u5806\u6808\u5bfc\u51fa\uff1a<\/p>\n\n\n\n<ul>\n<li>\u542f\u52a8 JConsole\uff1a\u547d\u4ee4\u884c\u8f93\u5165 jconsole\uff0c\u9009\u62e9\u76ee\u6807 Java \u8fdb\u7a0b\u8fde\u63a5\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong>\ud83d\udd39VisualVM\uff08JDK 6-8 \u81ea\u5e26\uff0c\u9ad8\u7248\u672c\u9700\u5355\u72ec\u4e0b\u8f7d\uff09<\/strong><\/p>\n\n\n\n<p>VisualVM \u662f\u66f4\u5f3a\u5927\u7684\u53ef\u89c6\u5316\u5de5\u5177\uff0c\u652f\u6301\u7ebf\u7a0b\u5806\u6808\u3001\u5185\u5b58\u5206\u6790\u7b49\uff1a<\/p>\n\n\n\n<ul>\n<li>\u542f\u52a8 VisualVM\uff1a\u547d\u4ee4\u884c\u8f93\u5165\u00a0jvisualvm\uff08JDK 9 + \u9700\u4ece\u5b98\u7f51\u4e0b\u8f7d\uff09\u3002<\/li>\n\n\n\n<li>\u9009\u62e9\u76ee\u6807\u8fdb\u7a0b\uff0c\u5207\u6362\u5230\u300c\u7ebf\u7a0b\u300d\u6807\u7b7e\uff0c\u70b9\u51fb\u300c\u7ebf\u7a0b dump\u300d\u6309\u94ae\u5bfc\u51fa\u5806\u6808\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>dump \u672c\u5730\u7ebf\u7a0b\u5806\u6808\u4fe1\u606f\u7684\u65b9\u6cd5\uff1f<\/strong>\ud83d\udd16<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u5728 Java \u4e2d\uff0c\u201c\u672c\u5730\u7ebf\u7a0b\u201d \u901a\u5e38\u6307\u6267\u884c\u672c\u5730\u65b9\u6cd5\uff08Native Method\uff09\u7684\u7ebf\u7a0b\uff0c\u5176\u5806\u6808\u4fe1\u606f\u5305\u542b Java \u5c42\u8c03\u7528\u548c\u672c\u5730\u4ee3\u7801\uff08\u5982 C\/C++\uff09\u7684\u6267\u884c\u8f68\u8ff9\u3002\u5bfc\u51fa\u672c\u5730\u7ebf\u7a0b\u5806\u6808\u7684\u65b9\u6cd5\u4e0e\u666e\u901a Java \u7ebf\u7a0b\u5806\u6808\u7c7b\u4f3c\uff0c\u4f46\u9700\u8981\u7279\u522b\u5173\u6ce8\u672c\u5730\u65b9\u6cd5\u7684\u8c03\u7528\u94fe\u3002\u4ee5\u4e0b\u662f\u5177\u4f53\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<p>Java \u7ebf\u7a0b\u5806\u6808\u9ed8\u8ba4\u4f1a\u5305\u542b\u672c\u5730\u65b9\u6cd5\u7684\u8c03\u7528\u4fe1\u606f\uff08\u5982native\u65b9\u6cd5\u7684\u5165\u53e3\uff09\uff0c\u4f7f\u7528jstack\u6216jcmd\u5373\u53ef\u5bfc\u51fa\uff0c\u65e0\u9700\u989d\u5916\u914d\u7f6e\u3002<\/p>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\ud83d\udd39\u4f7f\u7528jstack\u5bfc\u51fa\uff08\u63a8\u8350\uff09<\/strong><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># 1. \u83b7\u53d6Java\u8fdb\u7a0bPID\uff08\u540c\u666e\u901a\u7ebf\u7a0b\uff09\njps  # \u6216 ps -ef | grep java\n\n# 2. \u5bfc\u51fa\u5305\u542b\u672c\u5730\u65b9\u6cd5\u4fe1\u606f\u7684\u5806\u6808\uff08-l\u53c2\u6570\u4f1a\u663e\u793a\u66f4\u591a\u9501\u548c\u672c\u5730\u65b9\u6cd5\u7ec6\u8282\uff09\njstack -l &lt;PID> > native_thread_dump.txt<\/pre>\n\n\n\n<p>\u5806\u6808\u4e2d\u672c\u5730\u7ebf\u7a0b\u7684\u7279\u5f81\uff1a<\/p>\n\n\n\n<p>\u5728\u5bfc\u51fa\u7684\u5806\u6808\u4e2d\uff0c\u6267\u884c\u672c\u5730\u65b9\u6cd5\u7684\u7ebf\u7a0b\u4f1a\u663e\u793anative method\u6807\u8bb0\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\"Thread-0\" #10 prio=5 os_prio=31 tid=0x00007fd2a30c000 nid=0x5703 runnable [0x000070000f9f3000]\n   java.lang.Thread.State: RUNNABLE\n        at java.net.SocketInputStream.socketRead0(Native Method)  # \u672c\u5730\u65b9\u6cd5\n        at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)\n        at java.net.SocketInputStream.read(SocketInputStream.java:171)\n        ...<\/pre>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>java.net.SocketInputStream.socketRead0(Native Method)<\/code>\u00a0\u8868\u793a\u8be5\u7ebf\u7a0b\u6b63\u5728\u6267\u884c\u672c\u5730\u65b9\u6cd5<code>socketRead0<\/code>\u3002<\/pre>\n\n\n\n<p> \u3000<\/p>\n\n\n\n<p><strong>\ud83d\udd39\u4f7f\u7528jcmd\u5bfc\u51fa<\/strong><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">jcmd &lt;PID> Thread.print > native_thread_dump.txt\n<\/pre>\n\n\n\n<p>\u6548\u679c\u4e0ejstack\u4e00\u81f4\uff0c\u4f1a\u5305\u542b\u672c\u5730\u65b9\u6cd5\u7684\u8c03\u7528\u4fe1\u606f\u3002<\/p>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong>\u8fdb\u9636\uff1a\u83b7\u53d6\u672c\u5730\u4ee3\u7801\uff08C\/C++\uff09\u7684\u8be6\u7ec6\u5806\u6808<\/strong><\/p>\n\n\n\n<p>\u5982\u679c\u9700\u8981\u5206\u6790\u672c\u5730\u65b9\u6cd5\u5185\u90e8\u7684 C\/C++ \u4ee3\u7801\u8c03\u7528\u94fe\uff08\u5982 JDK \u6e90\u7801\u4e2d\u7684\u672c\u5730\u5b9e\u73b0\u6216\u81ea\u5b9a\u4e49 JNI \u4ee3\u7801\uff09\uff0c\u9700\u8981\u989d\u5916\u5de5\u5177\u914d\u5408\uff0c\u56e0\u4e3a JDK \u81ea\u5e26\u5de5\u5177\u53ea\u80fd\u663e\u793a Java \u5c42\u5230\u672c\u5730\u65b9\u6cd5\u7684\u5165\u53e3\uff0c\u65e0\u6cd5\u6df1\u5165\u672c\u5730\u4ee3\u7801\u5185\u90e8\u3002<\/p>\n\n\n\n<p>\u4f7f\u7528\u64cd\u4f5c\u7cfb\u7edf\u7ea7\u5de5\u5177\uff08\u9488\u5bf9\u672c\u5730\u4ee3\u7801\uff09\uff1a\u4e0d\u540c\u64cd\u4f5c\u7cfb\u7edf\u6709\u5185\u7f6e\u5de5\u5177\u53ef\u6355\u83b7\u8fdb\u7a0b\u7684\u6240\u6709\u7ebf\u7a0b\uff08\u5305\u62ec Java \u7ebf\u7a0b\u548c\u672c\u5730\u7ebf\u7a0b\uff09\u7684\u8be6\u7ec6\u5806\u6808<\/p>\n\n\n\n<p><strong>\ud83d\udd39Linux\/macOS\uff1apstack \u6216 gdb<\/strong><\/p>\n\n\n\n<ul>\n<li>pstack\uff08\u7b80\u5355\u76f4\u63a5\uff09\uff1a<\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u5b89\u88c5pstack\uff08Linux\u53ef\u80fd\u9700\u8981yum install pstack\uff09\npstack &lt;PID> > native_code_dump.txt<\/pre>\n\n\n\n<p>\u8f93\u51fa\u4f1a\u5305\u542b\u672c\u5730\u7ebf\u7a0b\u7684 C \u51fd\u6570\u8c03\u7528\u94fe\uff0c\u4f8b\u5982 JVM \u5185\u90e8\u7684\u672c\u5730\u65b9\u6cd5\u5b9e\u73b0\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#0  0x00007f8a8a5f4100 in read () from \/lib64\/libc.so.6\n#1  0x00007f8a8b0e6a3d in Java_java_net_SocketInputStream_socketRead0 () from \/usr\/lib\/jvm\/jdk1.8.0_361\/jre\/lib\/amd64\/libnet.so\n#2  0x00007f8a85f1a9c8 in ?? ()\n...<\/pre>\n\n\n\n<ul>\n<li>gdb\uff08\u66f4\u5f3a\u5927\uff0c\u9002\u5408\u8c03\u8bd5\uff09\uff1a<\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"># \u542f\u52a8gdb\u9644\u52a0\u5230\u8fdb\u7a0b\ngdb -p &lt;PID>\n# \u5728gdb\u4e2d\u83b7\u53d6\u6240\u6709\u7ebf\u7a0b\u5806\u6808\n(gdb) thread apply all bt\n# \u4fdd\u5b58\u5230\u6587\u4ef6\n(gdb) set logging file native_gdb_dump.txt\n(gdb) set logging on\n(gdb) thread apply all bt\n(gdb) set logging off<\/pre>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong>\ud83d\udd39Windows\uff1awindbg\u00a0\u6216\u00a0Visual Studio<\/strong><\/p>\n\n\n\n<ul>\n<li>\u4f7f\u7528windbg\uff08\u5fae\u8f6f\u8c03\u8bd5\u5de5\u5177\uff09<\/li>\n<\/ul>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong>\ud83d\udd39\u603b\u7ed3<\/strong><\/p>\n\n\n\n<p>\u4ec5\u9700 Java \u5c42\u5230\u672c\u5730\u65b9\u6cd5\u7684\u5165\u53e3\uff1a\u7528jstack\u6216jcmd\u5373\u53ef\uff0c\u7b80\u5355\u9ad8\u6548\u3002<\/p>\n\n\n\n<p>\u9700\u8981\u672c\u5730\u4ee3\u7801\uff08C\/C++\uff09\u7684\u8be6\u7ec6\u8c03\u7528\u94fe\uff1a\u4f7f\u7528\u64cd\u4f5c\u7cfb\u7edf\u5de5\u5177\uff08pstack\u3001gdb\u3001windbg\uff09\uff0c\u6216\u5728\u81ea\u5b9a\u4e49 JNI \u4ee3\u7801\u4e2d\u6dfb\u52a0\u5806\u6808\u6253\u5370\u903b\u8f91\u3002<\/p>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\u89e3\u8bfb\u7ebf\u7a0b\u5806\u6808<\/strong> \ud83d\udd16<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class MyTest {\n    Object obj1 = new Object();\n    Object obj2 = new Object();\n\n    public void fun1() {\n        synchronized (obj1) {\n            fun2();\n        }\n    }\n\n    public void fun2() {\n        synchronized (obj2) {\n            while (true) {\n                System.out.println(\"\");\n            }\n        }\n    }\n\n    public static void main(String[] args) {\n        MyTest aa = new MyTest();\n        aa.fun1();\n    }\n}<\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"794\" height=\"750\" src=\"https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-236.png\" alt=\"\" class=\"wp-image-19483\" style=\"width:424px;height:auto\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-236.png 794w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-236-300x283.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-236-768x725.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-236-230x217.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-236-350x331.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-236-480x453.png 480w\" sizes=\"(max-width: 794px) 100vw, 794px\" \/><\/figure><\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"261\" src=\"https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-238-1024x261.png\" alt=\"\" class=\"wp-image-19485\" style=\"width:528px;height:auto\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-238-1024x261.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-238-300x77.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-238-768x196.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-238-1536x392.png 1536w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-238-830x212.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-238-230x59.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-238-350x89.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-238-480x122.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-238.png 1552w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"343\" src=\"https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-239-1024x343.png\" alt=\"\" class=\"wp-image-19486\" style=\"width:532px;height:auto\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-239-1024x343.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-239-300x100.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-239-768x257.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-239-830x278.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-239-230x77.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-239-350x117.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-239-480x161.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-239.png 1118w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\ud83d\udd39\u672c\u5730\u7ebf\u7a0b\u548cJava\u7ebf\u7a0b\u7684\u6620\u5c04<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"533\" src=\"https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-240-1024x533.png\" alt=\"\" class=\"wp-image-19487\" style=\"width:524px;height:auto\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-240-1024x533.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-240-300x156.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-240-768x399.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-240-830x432.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-240-230x120.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-240-350x182.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-240-480x250.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-240.png 1342w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\u4e00\u4e2a\u7ebf\u7a0b\u5806\u6808\u7684\u4f8b\u5b50<\/strong> \ud83d\udd16<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u60f3\u8c61\u4f60\u5728\u89c2\u5bdf\u4e00\u4e2a\u53a8\u5e08\uff08\u7ebf\u7a0b\uff09\u5de5\u4f5c\uff1a<\/p>\n\n\n\n<ul>\n<li>\u4ed6\u6b63\u5728\u505a\u4e00\u9053 \u201c\u756a\u8304\u7092\u86cb\u201d\uff0c\u6b65\u9aa4\u662f\uff1a\u6d17\u756a\u8304\u2192\u5207\u756a\u8304\u2192\u6253\u9e21\u86cb\u2192\u7ffb\u7092\u2192\u88c5\u76d8\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u4f60\u7a81\u7136\u62cd\u4e0b\u4e00\u5f20\u7167\u7247\uff08\u5806\u6808\u5feb\u7167\uff09\uff0c\u7167\u7247\u4e0a\u4f1a\u663e\u793a\uff1a\n<ul>\n<li>\u53a8\u5e08\u5f53\u524d\u72b6\u6001\uff1a\u6b63\u5728 \u201c\u5207\u756a\u8304\u201d\uff08\u5bf9\u5e94\u7ebf\u7a0b\u72b6\u6001\uff09\uff1b<\/li>\n\n\n\n<li>\u505a\u8fd9\u9053\u83dc\u7684\u5b8c\u6574\u6b65\u9aa4\u94fe\u6761\uff1a\u4ece \u201c\u5f00\u59cb\u505a\u83dc\u201d \u5230 \u201c\u6d17\u756a\u8304\u201d \u518d\u5230 \u201c\u5207\u756a\u8304\u201d\uff08\u5bf9\u5e94\u65b9\u6cd5\u8c03\u7528\u94fe\uff09\uff1b<\/li>\n\n\n\n<li>\u73b0\u5728\u5177\u4f53\u505a\u5230\u54ea\u4e00\u6b65\uff08\u5bf9\u5e94\u4ee3\u7801\u884c\u53f7\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>\u6211\u4eec\u7528\u4e00\u4e2a\u7b80\u5355\u7684 Java \u7a0b\u5e8f\u6a21\u62df\u7ebf\u7a0b\u5de5\u4f5c\uff0c\u7136\u540e\u901a\u8fc7jstack\u83b7\u53d6\u5b83\u7684\u5806\u6808\u4fe1\u606f\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class CookingThread extends Thread {\n    \/\/ \u6a21\u62df\u505a\u83dc\u7684\u4e00\u7cfb\u5217\u65b9\u6cd5\uff08\u51fd\u6570\uff09\n    public void startCooking() {\n        washTomato();  \/\/ \u7b2c\u4e00\u6b65\uff1a\u6d17\u756a\u8304\n    }\n    \n    public void washTomato() {\n        System.out.println(\"\u6d17\u756a\u8304\");\n        cutTomato();   \/\/ \u7b2c\u4e8c\u6b65\uff1a\u5207\u756a\u8304\n    }\n    \n    public void cutTomato() {\n        System.out.println(\"\u5207\u756a\u8304\");\n        try {\n            Thread.sleep(5000);  \/\/ \u5207\u756a\u8304\u65f6\u505c\u987f5\u79d2\uff08\u65b9\u4fbf\u6211\u4eec\u6293\u53d6\u5806\u6808\uff09\n        } catch (InterruptedException e) {\n            e.printStackTrace();\n        }\n        cook();  \/\/ \u7b2c\u4e09\u6b65\uff1a\u70f9\u996a\n    }\n    \n    public void cook() {\n        System.out.println(\"\u7ffb\u7092\u4e2d...\");\n    }\n    \n    @Override\n    public void run() {\n        startCooking();  \/\/ \u7ebf\u7a0b\u5165\u53e3\uff1a\u5f00\u59cb\u505a\u83dc\n    }\n    \n    public static void main(String[] args) {\n        new CookingThread().start();  \/\/ \u542f\u52a8\u7ebf\u7a0b\n    }\n}<\/pre>\n\n\n\n<p>\u7ebf\u7a0b\u5806\u6808\u4fe1\u606f\uff08\u7528jstack\u83b7\u53d6\uff09: \u5f53\u7a0b\u5e8f\u8fd0\u884c\u5230cutTomato()\u65b9\u6cd5\u7684sleep\u65f6\uff08\u6b63\u5728 \u201c\u5207\u756a\u8304\u201d\uff09\uff0c\u6267\u884cjstack &lt;\u8fdb\u7a0bID>\uff0c\u4f1a\u5f97\u5230\u7c7b\u4f3c\u4ee5\u4e0b\u7684\u5806\u6808\u4fe1\u606f\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\"CookingThread\" #10 prio=5 os_prio=31 tid=0x00007f8a1b008000 nid=0x5a03 waiting on condition [0x000070000f28d000]\n   java.lang.Thread.State: TIMED_WAITING (sleeping)\n        at java.lang.Thread.sleep(Native Method)  \/\/ \u6b63\u5728\u6267\u884csleep\uff08\u5bf9\u5e94\u201c\u5207\u756a\u8304\u65f6\u505c\u987f\u201d\uff09\n        at CookingThread.cutTomato(CookingThread.java:18)  \/\/ \u5728cutTomato\u65b9\u6cd5\uff0c\u7b2c18\u884c\n        at CookingThread.washTomato(CookingThread.java:10)  \/\/ \u88abwashTomato\u8c03\u7528\n        at CookingThread.startCooking(CookingThread.java:6)  \/\/ \u88abstartCooking\u8c03\u7528\n        at CookingThread.run(CookingThread.java:28)  \/\/ \u7ebf\u7a0b\u5165\u53e3run\u65b9\u6cd5\u8c03\u7528\n        at java.lang.Thread.run(Thread.java:748)  \/\/ \u5e95\u5c42Thread\u7c7b\u7684run\u65b9\u6cd5<\/pre>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p>\ud83d\udd39 <strong>\u5806\u6808\u4fe1\u606f\u8be6\u89e3\uff08\u5bf9\u5e94\u573a\u666f\uff09<\/strong><\/p>\n\n\n\n<ul>\n<li>\u7ebf\u7a0b\u57fa\u672c\u4fe1\u606f\uff1a<\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\"CookingThread\"\uff1a\u7ebf\u7a0b\u540d\uff08\u6211\u4eec\u521b\u5efa\u7684\u53a8\u5e08\u540d\u5b57\uff09\uff1b\n\nTIMED_WAITING (sleeping)\uff1a\u7ebf\u7a0b\u5f53\u524d\u72b6\u6001\uff08\u6b63\u5728 \u201c\u5207\u756a\u8304\u65f6\u505c\u987f\u201d\uff0c\u5b9a\u65f6\u7b49\u5f85\uff09\u3002<\/pre>\n\n\n\n<ol><\/ol>\n\n\n\n<ul>\n<li>\u65b9\u6cd5\u8c03\u7528\u94fe\uff08\u6838\u5fc3\uff09\uff1a<\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\u6700\u4e0a\u5c42at java.lang.Thread.sleep(...)\uff1a\u5f53\u524d\u6b63\u5728\u6267\u884c\u7684\u64cd\u4f5c\uff08\u6b63\u5728\u505c\u987f\uff09\uff1b\n\n\u4e0b\u4e00\u884cat CookingThread.cutTomato(...)\uff1a\u5f53\u524d\u5728cutTomato\u65b9\u6cd5\uff08\u6b63\u5728 \u201c\u5207\u756a\u8304\u201d\uff09\uff1b\n\n\u518d\u4e0b\u4e00\u884cat CookingThread.washTomato(...)\uff1acutTomato\u662f\u88abwashTomato\u8c03\u7528\u7684\uff08\u5148 \u201c\u6d17\u756a\u8304\u201d \u518d \u201c\u5207\u756a\u8304\u201d\uff09\uff1b\n\n\u4ee5\u6b64\u7c7b\u63a8\uff0c\u76f4\u5230\u6700\u5e95\u5c42\u7684Thread.run()\uff1a\u7ebf\u7a0b\u7684\u6267\u884c\u8d77\u70b9\u3002<\/pre>\n\n\n\n<ul>\n<li>\u4ee3\u7801\u4f4d\u7f6e\uff1a<\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">CookingThread.java:18\uff1a\u660e\u786e\u6307\u51fa\u5f53\u524d\u64cd\u4f5c\u5728\u4ee3\u7801\u7684\u7b2c 18 \u884c\uff08\u5373sleep\u90a3\u4e00\u884c\uff09\uff0c\u76f4\u63a5\u5b9a\u4f4d\u5230\u5177\u4f53\u4ee3\u7801\u3002<\/pre>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong>\u7ebf\u7a0b\u6b7b\u9501\u7684\u4f8b\u5b50 <\/strong>\ud83d\udd16<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u5f53\u7a0b\u5e8f\u51fa\u73b0\u95ee\u9898\uff08\u6bd4\u5982\u5361\u7740\u4e0d\u52a8\u3001\u54cd\u5e94\u6162\uff09\u65f6\uff0c\u5149\u770b\u4ee3\u7801\u5f88\u96be\u5b9a\u4f4d\u539f\u56e0\u3002\u7ebf\u7a0b\u5806\u6808\u80fd\u544a\u8bc9\u4f60\uff1a<\/p>\n\n\n\n<p>\u4e3e\u4e2a\u901a\u4fd7\u7684\u4f8b\u5b50\uff1a\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u7b80\u5355\u7684 Java \u7a0b\u5e8f\uff0c\u6a21\u62df\u4e24\u4e2a\u7ebf\u7a0b\u62a2\u9501\u7684\u573a\u666f\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class ThreadStackDemo {\n    \/\/ \u5b9a\u4e49\u4e24\u4e2a\u9501\u5bf9\u8c61\n    static Object lockA = new Object();\n    static Object lockB = new Object();\n\n    public static void main(String[] args) {\n        \/\/ \u7ebf\u7a0b1\uff1a\u5148\u62a2lockA\uff0c\u518d\u62a2lockB\n        new Thread(() -> {\n            synchronized (lockA) {\n                System.out.println(\"\u7ebf\u7a0b1\u62ff\u5230\u4e86lockA\uff0c\u51c6\u5907\u62fflockB\");\n                try { Thread.sleep(1000); } catch (InterruptedException e) {} \/\/ \u6545\u610f\u7b49\u4e00\u4e0b\uff0c\u8ba9\u7ebf\u7a0b2\u6709\u673a\u4f1a\u62a2\u9501\n                synchronized (lockB) {\n                    System.out.println(\"\u7ebf\u7a0b1\u62ff\u5230\u4e86lockB\");\n                }\n            }\n        }, \"\u7ebf\u7a0b1\").start();\n\n        \/\/ \u7ebf\u7a0b2\uff1a\u5148\u62a2lockB\uff0c\u518d\u62a2lockA\n        new Thread(() -> {\n            synchronized (lockB) {\n                System.out.println(\"\u7ebf\u7a0b2\u62ff\u5230\u4e86lockB\uff0c\u51c6\u5907\u62fflockA\");\n                try { Thread.sleep(1000); } catch (InterruptedException e) {}\n                synchronized (lockA) {\n                    System.out.println(\"\u7ebf\u7a0b2\u62ff\u5230\u4e86lockA\");\n                }\n            }\n        }, \"\u7ebf\u7a0b2\").start();\n    }\n}<\/pre>\n\n\n\n<p>\u5728\u7ec8\u7aef\u6267\u884c\u547d\u4ee4\uff0c\u7f16\u8bd1\u8fd0\u884cjava\u7c7b\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">javac ThreadStackDemo.java\njava ThreadStackDemo<\/pre>\n\n\n\n<p>\u8fd0\u884c\u540e\uff0c\u53ef\u4ee5\u770b\u5230\u4e0b\u9762\u63a7\u5236\u53f0\u8f93\u51fa\uff0c\u7a0b\u5e8f\u4f1a<strong>\u5361\u4f4f\u4e0d\u52a8<\/strong>\uff08\u56e0\u4e3a\u53d1\u751f\u4e86\u6b7b\u9501\uff1a\u7ebf\u7a0b 1 \u62ff\u7740 lockA \u7b49 lockB\uff0c\u7ebf\u7a0b 2 \u62ff\u7740 lockB \u7b49 lockA\uff09\u3002\u8fd9\u65f6\u7528&nbsp;<code>jstack<\/code>&nbsp;\u547d\u4ee4\u6253\u5370\u7ebf\u7a0b\u5806\u6808\uff0c\u5c31\u80fd\u770b\u5230\u95ee\u9898\u6240\u5728\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\u7ebf\u7a0b1\u62ff\u5230\u4e86lockA\uff0c\u51c6\u5907\u62fflockB\n\u7ebf\u7a0b2\u62ff\u5230\u4e86lockB\uff0c\u51c6\u5907\u62fflockA\n<\/pre>\n\n\n\n<p>\u5728\u7ec8\u7aef\u6267\u884c\u4e0b\u9762\u547d\u4ee4\u62ff\u5230 Java \u7684pid<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">ps -ef | grep java<\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"75\" src=\"https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-228-1024x75.png\" alt=\"\" class=\"wp-image-19411\" style=\"width:481px;height:auto\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-228-1024x75.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-228-300x22.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-228-768x56.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-228-830x61.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-228-230x17.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-228-350x26.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-228-480x35.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-228.png 1040w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<p>\u7528jstack \u5bfc\u51fajava \u5806\u6808\u4fe1\u606f<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">jstack 47206<\/pre>\n\n\n\n<p>\u901a\u8fc7jstack dump\u7684\u6587\u4ef6\uff0c\u53ef\u4ee5\u770b\u5230\u6709\u4e24\u4e2a\u7ebf\u7a0bblock\u4e86<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">Virtual machine: 47206 JVM information:\nJRE 17 Mac OS X aarch64-64-Bit 20221018_182 (JIT enabled, AOT enabled)\nOpenJ9   - e04a7f6c1\nOMR      - 85a21674f\nJCL      - 32d2c409a33 based on jdk-17.0.5+8\n\n\"JIT Compilation Thread-000\" prio=10 Id=3 RUNNABLE\n\n\"JIT Compilation Thread-001 Suspended\" prio=10 Id=4 RUNNABLE\n\n\"JIT Compilation Thread-002 Suspended\" prio=10 Id=5 RUNNABLE\n\n\"JIT Compilation Thread-003 Suspended\" prio=10 Id=6 RUNNABLE\n\n\"JIT Compilation Thread-004 Suspended\" prio=10 Id=7 RUNNABLE\n\n\"JIT Compilation Thread-005 Suspended\" prio=10 Id=8 RUNNABLE\n\n\"JIT Compilation Thread-006 Suspended\" prio=10 Id=9 RUNNABLE\n\n\"JIT Diagnostic Compilation Thread-007 Suspended\" prio=10 Id=10 RUNNABLE\n\n\"JIT-SamplerThread\" prio=10 Id=11 TIMED_WAITING\n\n\"IProfiler\" prio=5 Id=12 RUNNABLE\n\n\"Common-Cleaner\" prio=8 Id=2 TIMED_WAITING\n\tat java.base@17.0.5\/java.lang.Object.wait(Native Method)\n\tat java.base@17.0.5\/java.lang.Object.wait(Object.java:219)\n\tat java.base@17.0.5\/java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:137)\n\tat java.base@17.0.5\/jdk.internal.ref.CleanerImpl.run(CleanerImpl.java:140)\n\tat java.base@17.0.5\/java.lang.Thread.run(Thread.java:857)\n\tat java.base@17.0.5\/jdk.internal.misc.InnocuousThread.run(InnocuousThread.java:162)\n\n\"Concurrent Mark Helper\" prio=1 Id=13 RUNNABLE\n\n\"GC Worker\" prio=5 Id=14 RUNNABLE\n\n\"GC Worker\" prio=5 Id=15 RUNNABLE\n\n\"GC Worker\" prio=5 Id=16 RUNNABLE\n\n\"GC Worker\" prio=5 Id=17 RUNNABLE\n\n\"GC Worker\" prio=5 Id=18 RUNNABLE\n\n\"GC Worker\" prio=5 Id=19 RUNNABLE\n\n\"GC Worker\" prio=5 Id=20 RUNNABLE\n\n\"Attach API wait loop\" prio=10 Id=23 TIMED_WAITING\n\tat java.base@17.0.5\/java.lang.Thread.sleepImpl(Native Method)\n\tat java.base@17.0.5\/java.lang.Thread.sleep(Thread.java:1009)\n\tat java.base@17.0.5\/java.lang.Thread.sleep(Thread.java:992)\n\tat java.base@17.0.5\/openj9.internal.tools.attach.target.WaitLoop.checkReplyAndCreateAttachment(WaitLoop.java:142)\n\tat java.base@17.0.5\/openj9.internal.tools.attach.target.WaitLoop.waitForNotification(WaitLoop.java:117)\n\tat java.base@17.0.5\/openj9.internal.tools.attach.target.WaitLoop.run(WaitLoop.java:157)\n\n\"Finalizer thread\" prio=5 Id=24 RUNNABLE\n\n\"\u7ebf\u7a0b1\" prio=5 Id=25 BLOCKED on java.lang.Object@979c7710 owned by \"\u7ebf\u7a0b2\" Id=26\n\tat app\/\/ThreadStackDemo.lambda$main$0(ThreadStackDemo.java:12)\n\t- locked java.lang.Object@db75ba2\n\tat java.base@17.0.5\/java.lang.Thread.run(Thread.java:857)\n\n\"\u7ebf\u7a0b2\" prio=5 Id=26 BLOCKED on java.lang.Object@db75ba2 owned by \"\u7ebf\u7a0b1\" Id=25\n\tat app\/\/ThreadStackDemo.lambda$main$1(ThreadStackDemo.java:23)\n\t- locked java.lang.Object@979c7710\n\tat java.base@17.0.5\/java.lang.Thread.run(Thread.java:857)\n\n\"DestroyJavaVM helper thread\" prio=5 Id=27 RUNNABLE\n\n\"Attachment portNumber: 63972\" prio=10 Id=28 RUNNABLE\n\tat java.base@17.0.5\/openj9.internal.tools.attach.target.DiagnosticUtils.dumpAllThreadsImpl(Native Method)\n\tat java.base@17.0.5\/openj9.internal.tools.attach.target.DiagnosticUtils.getThreadInfo(DiagnosticUtils.java:245)\n\tat java.base@17.0.5\/openj9.internal.tools.attach.target.DiagnosticUtils.executeDiagnosticCommand(DiagnosticUtils.java:181)\n\tat java.base@17.0.5\/openj9.internal.tools.attach.target.Attachment.doCommand(Attachment.java:248)\n\tat java.base@17.0.5\/openj9.internal.tools.attach.target.Attachment.run(Attachment.java:159)\n\n\"file lock watchdog\" prio=10 Id=29 TIMED_WAITING\n\tat java.base@17.0.5\/java.lang.Object.wait(Native Method)\n\tat java.base@17.0.5\/java.lang.Object.wait(Object.java:219)\n\tat java.base@17.0.5\/java.util.TimerThread.mainLoop(Timer.java:569)\n\tat java.base@17.0.5\/java.util.TimerThread.run(Timer.java:522)\n\n\n<\/pre>\n\n\n\n<p><strong>\ud83d\udd39\u865a\u62df\u673a\u57fa\u672c\u4fe1\u606f<\/strong><\/p>\n\n\n\n<ul>\n<li>JVM \u7248\u672c\uff1aOpenJ9 \u865a\u62df\u673a\uff08\u800c\u975e HotSpot\uff09\uff0cJRE 17\uff0c\u8fd0\u884c\u5728 Mac OS X aarch64\uff08\u82f9\u679c M \u7cfb\u5217\u82af\u7247\uff09\u67b6\u6784\u4e0a\u3002<\/li>\n\n\n\n<li>\u7279\u6027\uff1a\u542f\u7528\u4e86 JIT\uff08\u5373\u65f6\u7f16\u8bd1\uff09\u548c AOT\uff08\u63d0\u524d\u7f16\u8bd1\uff09\uff0c\u8fd9\u662f OpenJ9 \u7684\u5178\u578b\u914d\u7f6e\uff0c\u4fa7\u91cd\u6027\u80fd\u4f18\u5316\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\ud83d\udd39\u7ebf\u7a0b\u5206\u7c7b\u4e0e\u72b6\u6001\u89e3\u8bfb<\/strong><\/p>\n\n\n\n<p><strong>\u25fe<\/strong>JIT \u7f16\u8bd1\u76f8\u5173\u7ebf\u7a0b\uff08OpenJ9 \u6838\u5fc3\u7ebf\u7a0b\uff09<\/p>\n\n\n\n<ul>\n<li>JIT Compilation Thread-000\u81f3006\uff08Id=3~9\uff0c\u4f18\u5148\u7ea7 10\uff09\uff1a<br>\u8d1f\u8d23 JIT \u7f16\u8bd1\uff08\u5c06\u5b57\u8282\u7801\u52a8\u6001\u7f16\u8bd1\u4e3a\u673a\u5668\u7801\uff09\u7684\u5de5\u4f5c\u7ebf\u7a0b\u3002\u90e8\u5206\u6807\u8bb0\u4e3aSuspended\uff08\u6682\u505c\uff09\uff0c\u662f\u6b63\u5e38\u73b0\u8c61 \u2014\u2014JIT \u7ebf\u7a0b\u4f1a\u6839\u636e\u4ee3\u7801\u70ed\u70b9\u52a8\u6001\u6fc0\u6d3b \/ \u6682\u505c\uff0c\u5e76\u975e\u5f02\u5e38\u3002<\/li>\n\n\n\n<li>JIT Diagnostic Compilation Thread-007\uff08Id=10\uff0c\u4f18\u5148\u7ea7 10\uff09\uff1a<br>\u7528\u4e8e JIT \u7f16\u8bd1\u7684\u8bca\u65ad\u7ebf\u7a0b\uff0c\u53ef\u80fd\u7528\u4e8e\u8bb0\u5f55\u7f16\u8bd1\u65e5\u5fd7\u6216\u8c03\u8bd5\u4fe1\u606f\uff0c\u72b6\u6001Suspended\u8868\u793a\u5f53\u524d\u65e0\u8bca\u65ad\u4efb\u52a1\u3002<\/li>\n\n\n\n<li>JIT-SamplerThread\uff08Id=11\uff0c\u4f18\u5148\u7ea7 10\uff0c\u72b6\u6001TIMED_WAITING\uff09\uff1a<br>JIT \u91c7\u6837\u7ebf\u7a0b\uff0c\u5b9a\u671f\u91c7\u6837\u4ee3\u7801\u6267\u884c\u70ed\u70b9\uff0c\u8f85\u52a9 JIT \u51b3\u5b9a\u54ea\u4e9b\u4ee3\u7801\u9700\u8981\u7f16\u8bd1\u4f18\u5316\uff0c\u901a\u8fc7\u5b9a\u65f6\u7b49\u5f85\uff08TIMED_WAITING\uff09\u51cf\u5c11\u8d44\u6e90\u6d88\u8017\u3002<\/li>\n\n\n\n<li>\u603b\u7ed3\uff1aJIT \u76f8\u5173\u7ebf\u7a0b\u72b6\u6001\u6b63\u5e38\uff0c\u4f53\u73b0\u4e86 OpenJ9 \u5bf9\u5373\u65f6\u7f16\u8bd1\u7684\u52a8\u6001\u7ba1\u7406\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u25fe<\/strong>\u5783\u573e\u56de\u6536\uff08GC\uff09\u76f8\u5173\u7ebf\u7a0b<\/p>\n\n\n\n<ul>\n<li>Concurrent Mark Helper\uff08Id=13\uff0c\u4f18\u5148\u7ea7 1\uff09\uff1a<br>GC \u5e76\u53d1\u6807\u8bb0\u9636\u6bb5\u7684\u8f85\u52a9\u7ebf\u7a0b\uff0c\u72b6\u6001RUNNABLE\u8868\u793a\u5f53\u524d\u53ef\u80fd\u5728\u8fdb\u884c\u5e76\u53d1\u6807\u8bb0\uff08GC \u7684\u4e00\u4e2a\u9636\u6bb5\uff0c\u4e0d\u963b\u585e\u7528\u6237\u7ebf\u7a0b\uff09\u3002<\/li>\n\n\n\n<li>GC Worker\uff08Id=14~20\uff0c\u4f18\u5148\u7ea7 5\uff0c\u72b6\u6001RUNNABLE\uff09\uff1a<br>\u5171 8 \u4e2a GC \u5de5\u4f5c\u7ebf\u7a0b\uff0c\u7528\u4e8e\u6267\u884c\u5783\u573e\u56de\u6536\u7684\u5177\u4f53\u64cd\u4f5c\uff08\u5982\u5bf9\u8c61\u6807\u8bb0\u3001\u6e05\u7406\uff09\u3002\u591a\u7ebf\u7a0b\u5e76\u884c\u5de5\u4f5c\u8bf4\u660e\u5f53\u524d\u4f7f\u7528\u7684\u662f\u5e76\u884c GC \u6536\u96c6\u5668\uff08\u7b26\u5408 OpenJ9 \u7684\u9ed8\u8ba4\u914d\u7f6e\uff09\uff0cRUNNABLE\u72b6\u6001\u8868\u793a GC \u6b63\u5728\u8fdb\u884c\u6216\u51c6\u5907\u4e2d\uff0c\u5c5e\u4e8e\u6b63\u5e38\u7684\u5185\u5b58\u7ba1\u7406\u884c\u4e3a\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong><strong>\u25fe<\/strong><\/strong>\u7528\u6237\u81ea\u5b9a\u4e49\u7ebf\u7a0b\uff08\u6838\u5fc3\u95ee\u9898\uff09<\/p>\n\n\n\n<ul>\n<li>\u7ebf\u7a0b1\uff08Id=25\uff0c\u4f18\u5148\u7ea7 5\uff0c\u72b6\u6001BLOCKED\uff09\uff1a\n<ul>\n<li>\u963b\u585e\u539f\u56e0\uff1a\u7b49\u5f85\u9501java.lang.Object@979c7710\uff0c\u4f46\u8be5\u9501\u88ab\u7ebf\u7a0b2\uff08Id=26\uff09\u6301\u6709\u3002<\/li>\n\n\n\n<li>\u5df2\u6301\u6709\u9501\uff1ajava.lang.Object@db75ba2\uff08\u901a\u8fc7- locked\u6807\u8bb0\uff09\u3002<\/li>\n\n\n\n<li>\u4ee3\u7801\u4f4d\u7f6e\uff1a\u5361\u5728ThreadStackDemo.java:12\u884c\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u7ebf\u7a0b2\uff08Id=26\uff0c\u4f18\u5148\u7ea7 5\uff0c\u72b6\u6001BLOCKED\uff09\uff1a<ul><li>\u963b\u585e\u539f\u56e0\uff1a\u7b49\u5f85\u9501java.lang.Object@db75ba2\uff0c\u4f46\u8be5\u9501\u88ab\u7ebf\u7a0b1\uff08Id=25\uff09\u6301\u6709\u3002\u5df2\u6301\u6709\u9501\uff1ajava.lang.Object@979c7710\u3002\u4ee3\u7801\u4f4d\u7f6e\uff1a\u5361\u5728ThreadStackDemo.java:23\u884c\u3002<\/li><\/ul>\u5173\u952e\u7ed3\u8bba\uff1a\u4e24\u4e2a\u7528\u6237\u7ebf\u7a0b\u53d1\u751f<strong>\u6b7b\u9501<\/strong>\u2014\u2014 \u4e92\u76f8\u6301\u6709\u5bf9\u65b9\u9700\u8981\u7684\u9501\uff0c\u5f62\u6210\u5faa\u73af\u7b49\u5f85\uff0c\u5bfc\u81f4\u4e1a\u52a1\u903b\u8f91\u5b8c\u5168\u963b\u585e\u3002<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"862\" src=\"https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-230-1024x862.png\" alt=\"\" class=\"wp-image-19420\" style=\"width:258px;height:auto\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-230-1024x862.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-230-300x252.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-230-768x646.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-230-830x698.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-230-230x194.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-230-350x295.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-230-480x404.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-230.png 1388w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<p>\u3000\u3000\u3000<\/p>\n\n\n\n<p><strong>\ud83d\udd39\u542f\u52a8 jconsole\uff0c\u9009\u62e9\u76ee\u6807 Java \u8fdb\u7a0b\u8fde\u63a5<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"840\" src=\"https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-241-1024x840.png\" alt=\"\" class=\"wp-image-19489\" style=\"width:500px;height:auto\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-241-1024x840.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-241-300x246.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-241-768x630.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-241-1536x1260.png 1536w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-241-830x681.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-241-230x189.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-241-350x287.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-241-480x394.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-241.png 1794w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"852\" src=\"https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-242-1024x852.png\" alt=\"\" class=\"wp-image-19490\" style=\"width:506px;height:auto\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-242-1024x852.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-242-300x250.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-242-768x639.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-242-1536x1278.png 1536w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-242-830x691.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-242-230x191.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-242-350x291.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-242-480x399.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2025\/08\/\u56fe\u7247-242.png 1800w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong>\ud83d\udd39 \u603b\u7ed3<\/strong><\/p>\n\n\n\n<p>\u4e00\u4e2a Java 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[&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"_links":{"self":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/19402"}],"collection":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=19402"}],"version-history":[{"count":45,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/19402\/revisions"}],"predecessor-version":[{"id":19491,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/19402\/revisions\/19491"}],"wp:attachment":[{"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=19402"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=19402"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=19402"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}