{"id":10020801,"date":"2025-05-23T10:46:04","date_gmt":"2025-05-23T02:46:04","guid":{"rendered":"https:\/\/itmax.cn\/?p=10020801"},"modified":"2025-05-23T10:46:04","modified_gmt":"2025-05-23T02:46:04","slug":"%e6%9e%81%e5%85%94%e5%bf%ab%e9%80%92java%e5%b2%97%ef%bc%8c%e8%96%aa%e8%b5%8418-35k%ef%bc%8c%e7%9c%8b%e7%9c%8b%e9%9a%be%e5%ba%a6","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10020801","title":{"rendered":"\u6781\u5154\u5feb\u9012Java\u5c97\uff0c\u85aa\u8d4418-35K\uff0c\u770b\u770b\u96be\u5ea6"},"content":{"rendered":"<p>\u4eca\u5929\u5206\u4eab<a href=\"https:\/\/link.segmentfault.com\/?enc=mTe7b0rwOkVsWlVstHKrKQ%3D%3D.8ZymMHPWMWgvqAl%2FlPX7BOMQuX2GGpS%2BeJLq9QHybnOC8mmRtC7XaenKLdDmFkRxECK4ynimTRkUcqtCoplHFA%3D%3D\" rel=\"nofollow noopener noreferrer\" target=\"_blank\">\u7ec4\u7ec7\u5185\u90e8<\/a>\u7684\u670b\u53cb\u5728<strong>\u6781\u5154\u5feb\u9012\u7684Java<\/strong>\u9762\u7ecf\uff0c\u53ef\u4ee5\u770b\u5230\u85aa\u8d44\u7684\u4e0a\u9650\u633a\u9ad8\u7684\uff0c\u9762\u8bd5\u4e5f\u6709\u70b9\u96be\u5ea6\uff0c\u4e00\u8d77\u6765\u770b\u770b\uff1a<\/p>\n<p><img decoding=\"async\"   referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/remote\/1460000046565983\" alt=\"\" title=\"\"><\/p>\n<h2>\u9762\u7ecf\u8be6\u89e3<\/h2>\n<h3>1.\u5355\u8282\u70b9\u6536\u5305\u6570\u636e\u4ece30\u4e07\u6761\u6bcf\u79d2\u523060\u4e07\u6761\u6bcf\u79d2,\u662f\u600e\u4e48\u505a\u5230?<\/h3>\n<ul>\n<li>\n<p><strong>\u5173\u952e\u4f18\u5316\u70b9<\/strong>\uff1a<\/p>\n<ul>\n<li><strong>\u7f51\u7edc\u534f\u8bae\u4f18\u5316<\/strong>\uff1a\u4f7f\u7528\u66f4\u9ad8\u6548\u7684\u534f\u8bae\uff08\u5982UDP\u66ff\u4ee3TCP\uff09\uff0c\u51cf\u5c11\u534f\u8bae\u6808\u5f00\u9500\uff1b\u8c03\u6574\u7f51\u5361\u914d\u7f6e\uff08\u5982RSS\u591a\u961f\u5217\u7ed1\u5b9aCPU\u6838\u5fc3\uff09\u3002<\/li>\n<li><strong>\u591a\u7ebf\u7a0b\u4e0e\u65e0\u9501\u8bbe\u8ba1<\/strong>\uff1a\u901a\u8fc7\u591a\u7ebf\u7a0b\u5e76\u884c\u5904\u7406\u6536\u5305\uff08\u5982Netty\u7684EventLoopGroup\uff09\uff0c\u7ed3\u5408\u65e0\u9501\u6570\u636e\u7ed3\u6784\uff08\u5982Disruptor\uff09\u51cf\u5c11\u7ebf\u7a0b\u7ade\u4e89\u3002<\/li>\n<li><strong>\u96f6\u62f7\u8d1d\u6280\u672f<\/strong>\uff1a\u907f\u514d\u6570\u636e\u5728\u7528\u6237\u6001\u548c\u5185\u6838\u6001\u4e4b\u95f4\u590d\u5236\uff08\u5982Linux\u7684<code>sendfile<\/code>\u6216Netty\u7684<code>FileRegion<\/code>\uff09\u3002<\/li>\n<li><strong>\u5185\u5b58\u9884\u5206\u914d<\/strong>\uff1a\u9884\u5148\u5206\u914d\u5927\u5757\u5185\u5b58\uff08\u5982\u5185\u5b58\u6c60\uff09\u51cf\u5c11\u52a8\u6001\u5206\u914d\u7684\u5f00\u9500\uff0c\u907f\u514d\u9891\u7e41GC\u3002<\/li>\n<li><strong>\u786c\u4ef6\u52a0\u901f<\/strong>\uff1a\u5229\u7528DPDK\uff08\u6570\u636e\u5e73\u9762\u5f00\u53d1\u5de5\u5177\u5305\uff09\u6216SR-IOV\uff08\u7f51\u5361\u865a\u62df\u5316\uff09\u7ed5\u8fc7\u5185\u6838\u534f\u8bae\u6808\u76f4\u63a5\u6536\u5305\u3002<\/li>\n<li><strong>\u6279\u5904\u7406\u673a\u5236<\/strong>\uff1a\u5355\u6b21\u7cfb\u7edf\u8c03\u7528\u5904\u7406\u591a\u4e2a\u6570\u636e\u5305\uff08\u5982Linux\u7684<code>recvmmsg<\/code>\u6279\u91cf\u6536\u5305\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr>\n<h3>2.Disruptor\u6536\u5305\u662f\u5982\u4f55\u5b9e\u73b0\u7684,\u6027\u80fd\u9ad8\u4f53\u73b0\u5728\u4ec0\u4e48\u5730\u65b9?<\/h3>\n<ul>\n<li>\n<p><strong>\u5b9e\u73b0\u539f\u7406<\/strong>\uff1a<\/p>\n<ul>\n<li><strong>\u73af\u5f62\u7f13\u51b2\u533a\uff08RingBuffer\uff09<\/strong>\uff1a\u56fa\u5b9a\u5927\u5c0f\u7684\u6570\u7ec4\uff0c\u901a\u8fc7\u5e8f\u53f7\uff08Sequence\uff09\u63a7\u5236\u751f\u4ea7\u8005\u548c\u6d88\u8d39\u8005\u7684\u8fdb\u5ea6\u3002<\/li>\n<li><strong>\u65e0\u9501\u8bbe\u8ba1<\/strong>\uff1a\u901a\u8fc7CAS\uff08Compare-And-Swap\uff09\u64cd\u4f5c\u66f4\u65b0\u5e8f\u53f7\uff0c\u907f\u514d\u4f20\u7edf\u961f\u5217\u7684\u9501\u7ade\u4e89\u3002<\/li>\n<li><strong>\u7f13\u5b58\u884c\u586b\u5145<\/strong>\uff1a\u901a\u8fc7\u586b\u5145\u65e0\u7528\u5b57\u6bb5\uff08\u5982<code>long<\/code>\u7c7b\u578b\u5360\u4f4d\uff09\u907f\u514d\u4f2a\u5171\u4eab\uff08False Sharing\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u6027\u80fd\u4f18\u52bf<\/strong>\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u541e\u5410<\/strong>\uff1a\u65e0\u9501+\u6279\u5904\u7406\uff0c\u5355\u7ebf\u7a0b\u53ef\u5904\u7406\u5343\u4e07\u7ea7\u4e8b\u4ef6\/\u79d2\u3002<\/li>\n<li><strong>\u4f4e\u5ef6\u8fdf<\/strong>\uff1a\u5185\u5b58\u76f4\u63a5\u64cd\u4f5c\uff0c\u65e0\u7cfb\u7edf\u8c03\u7528\u6216\u9501\u963b\u585e\u3002<\/li>\n<li><strong>\u53ef\u6269\u5c55\u6027<\/strong>\uff1a\u652f\u6301\u591a\u751f\u4ea7\u8005\u548c\u6d88\u8d39\u8005\uff0c\u4f9d\u8d56\u5e8f\u53f7\u5c4f\u969c\uff08SequenceBarrier\uff09\u534f\u8c03\u8fdb\u5ea6\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr>\n<h3>3.IP\u5c5e\u6027\u6807\u6ce8\u7cfb\u7edf\u67b6\u6784\u662f\u4ec0\u4e48\u6837\u7684?Kafka\u662f\u5982\u4f55\u4f7f\u7528\u7684?\u5b9e\u73b0\u51e0\u4e2a\u5206\u7247?\u6bcf\u4e2a\u5206\u7247\u5907\u4efd\u662f\u591a\u5c11?<\/h3>\n<ul>\n<li>\n<p><strong>\u5178\u578b\u67b6\u6784<\/strong>\uff08\u5047\u8bbe\u901a\u7528\u573a\u666f\uff09\uff1a<\/p>\n<ul>\n<li><strong>\u6570\u636e\u91c7\u96c6\u5c42<\/strong>\uff1a\u901a\u8fc7Agent\u6536\u96c6\u539f\u59cbIP\u6d41\u91cf\uff0c\u53d1\u9001\u5230Kafka\u3002<\/li>\n<li><strong>\u5b9e\u65f6\u5904\u7406\u5c42<\/strong>\uff1a\u6d88\u8d39Kafka\u6570\u636e\uff0c\u5173\u8054IP\u5e93\uff08\u5982GeoIP\uff09\u8fdb\u884c\u5c5e\u6027\u6807\u6ce8\u3002<\/li>\n<li><strong>\u5b58\u50a8\u5c42<\/strong>\uff1a\u6807\u6ce8\u7ed3\u679c\u5199\u5165ElasticSearch\u6216HBase\u4f9b\u67e5\u8be2\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Kafka\u4f7f\u7528\u7ec6\u8282<\/strong>\uff1a<\/p>\n<ul>\n<li><strong>\u5206\u533a\u6570<\/strong>\uff1a\u6839\u636e\u541e\u5410\u91cf\u8bbe\u5b9a\uff08\u4f8b\u598212\u5206\u533a\uff0c\u5355\u5206\u533a\u5904\u74065\u4e07\u6761\/\u79d2\uff09\u3002<\/li>\n<li><strong>\u526f\u672c\u6570<\/strong>\uff1a\u901a\u5e38\u4e3a3\u526f\u672c\uff081 Leader + 2 Follower\uff09\uff0c\u4fdd\u8bc1\u9ad8\u53ef\u7528\u3002<\/li>\n<li><strong>\u751f\u4ea7\u8005<\/strong>\uff1a\u6279\u91cf\u53d1\u9001\uff08<code>batch.size<\/code>\u8c03\u5927\uff09+\u538b\u7f29\uff08<code>compression.type=snappy<\/code>\uff09\u3002<\/li>\n<li><strong>\u6d88\u8d39\u8005<\/strong>\uff1a\u591a\u6d88\u8d39\u8005\u7ec4\u5e76\u884c\u6d88\u8d39\uff0c\u624b\u52a8\u63d0\u4ea4Offset\u907f\u514d\u91cd\u590d\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr>\n<h3>4.\u6d88\u606f\u961f\u5217\u4e2d\u51fa\u73b0\u8fc7\u6d88\u606f\u4e22\u5931\u5417?\u662f\u5982\u4f55\u89e3\u51b3\u7684?<\/h3>\n<ul>\n<li>\n<p><strong>\u5e38\u89c1\u573a\u666f\u4e0e\u89e3\u51b3<\/strong>\uff1a<\/p>\n<ul>\n<li>\n<p><strong>\u751f\u4ea7\u8005\u4e22\u5931<\/strong>\uff1a<\/p>\n<ul>\n<li>\u539f\u56e0\uff1a\u5f02\u6b65\u53d1\u9001\u672a\u786e\u8ba4\uff08\u5982<code>acks=0<\/code>\uff09\u3002<\/li>\n<li>\u89e3\u51b3\uff1a\u8bbe\u7f6e<code>acks=all<\/code>\uff08\u6240\u6709\u526f\u672c\u786e\u8ba4\uff09\uff0c\u542f\u7528\u91cd\u8bd5\uff08<code>retries=3<\/code>\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>Broker\u4e22\u5931<\/strong>\uff1a<\/p>\n<ul>\n<li>\u539f\u56e0\uff1a\u526f\u672c\u672a\u540c\u6b65\u4e14Leader\u5b95\u673a\u3002<\/li>\n<li>\u89e3\u51b3\uff1a\u8bbe\u7f6e<code>min.insync.replicas=2<\/code>\uff08\u81f3\u5c112\u526f\u672c\u540c\u6b65\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u6d88\u8d39\u8005\u4e22\u5931<\/strong>\uff1a<\/p>\n<ul>\n<li>\u539f\u56e0\uff1a\u81ea\u52a8\u63d0\u4ea4Offset\u540e\u5904\u7406\u5931\u8d25\u3002<\/li>\n<li>\u89e3\u51b3\uff1a\u6539\u4e3a\u624b\u52a8\u63d0\u4ea4Offset\uff08<code>enable.auto.commit=false<\/code>\uff09\uff0c\u5904\u7406\u5b8c\u6210\u518d\u63d0\u4ea4\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u8865\u5145\u63aa\u65bd<\/strong>\uff1a\u76d1\u63a7\u6d88\u606f\u5806\u79ef\uff08\u5982Kafka Lag\uff09\u3001\u5b9a\u671f\u5907\u4efdOffset\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr>\n<h3>5.\u5982\u4f55\u786e\u4fdd\u6d88\u606f\u4e00\u81f4\u6027?<\/h3>\n<ul>\n<li>\n<p><strong>\u751f\u4ea7\u8005\u7aef<\/strong>\uff1a<\/p>\n<ul>\n<li><strong>\u4e8b\u52a1\u6d88\u606f<\/strong>\uff1aKafka\u652f\u6301\u4e8b\u52a1\uff08<code>transactional.id<\/code>\uff09\uff0c\u4fdd\u8bc1\u53d1\u9001\u548c\u63d0\u4ea4\u539f\u5b50\u6027\u3002<\/li>\n<li><strong>\u5e42\u7b49\u6027<\/strong>\uff1a\u542f\u7528<code>enable.idempotence=true<\/code>\uff0c\u907f\u514d\u91cd\u590d\u53d1\u9001\uff08\u901a\u8fc7PID+Sequence\u53bb\u91cd\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u6d88\u8d39\u8005\u7aef<\/strong>\uff1a<\/p>\n<ul>\n<li><strong>Exactly-Once\u8bed\u4e49<\/strong>\uff1aKafka\u7684<code>isolation.level=read_committed<\/code>\uff08\u4ec5\u6d88\u8d39\u5df2\u63d0\u4ea4\u6d88\u606f\uff09\u3002<\/li>\n<li><strong>\u4e1a\u52a1\u53bb\u91cd<\/strong>\uff1a\u901a\u8fc7\u552f\u4e00ID\uff08\u5982\u6570\u636e\u5e93\u4e3b\u952e\uff09\u6216\u5e42\u7b49\u63a5\u53e3\u4fdd\u8bc1\u591a\u6b21\u6d88\u8d39\u7ed3\u679c\u4e00\u81f4\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>Broker\u7aef<\/strong>\uff1a\u526f\u672c\u540c\u6b65\u673a\u5236\uff08ISR\u5217\u8868\uff09\u786e\u4fdd\u6570\u636e\u6301\u4e45\u5316\u3002<\/li>\n<\/ul>\n<hr>\n<h3>6.\u53cc\u5185\u5b58\u5757\u8f6e\u6362\u673a\u5236\u662f\u5982\u4f55\u5b9e\u73b0\u7684?<\/h3>\n<ul>\n<li><strong>\u6838\u5fc3\u601d\u60f3<\/strong>\uff1a\u4e24\u5757\u5185\u5b58\u4ea4\u66ff\u8bfb\u5199\uff0c\u907f\u514d\u8bfb\u5199\u7ade\u4e89\u3002<\/li>\n<li>\n<p><strong>\u5b9e\u73b0\u6b65\u9aa4<\/strong>\uff1a<\/p>\n<ol>\n<li><strong>\u5185\u5b58\u9884\u5206\u914d<\/strong>\uff1a\u521d\u59cb\u5316\u4e24\u5757\u56fa\u5b9a\u5927\u5c0f\u7684\u5185\u5b58\uff08A\u548cB\uff09\u3002<\/li>\n<li><strong>\u5199\u64cd\u4f5c<\/strong>\uff1a\u5f53\u524d\u5199\u5165\u5757\uff08\u5982A\uff09\u5199\u6ee1\u540e\uff0c\u89e6\u53d1\u5207\u6362\u4fe1\u53f7\uff0c\u5207\u6362\u5230B\u5757\u7ee7\u7eed\u5199\u5165\u3002<\/li>\n<li><strong>\u8bfb\u64cd\u4f5c<\/strong>\uff1a\u8bfb\u53d6\u5df2\u5207\u6362\u7684\u5b8c\u6574\u5757\uff08\u5982A\uff09\uff0c\u5904\u7406\u5b8c\u6210\u540e\u91ca\u653e\u5185\u5b58\u3002<\/li>\n<li><strong>\u65e0\u9501\u540c\u6b65<\/strong>\uff1a\u901a\u8fc7\u539f\u5b50\u53d8\u91cf\uff08\u5982<code>AtomicBoolean<\/code>\uff09\u6216\u5185\u5b58\u5c4f\u969c\u63a7\u5236\u5207\u6362\u72b6\u6001\u3002<\/li>\n<\/ol>\n<\/li>\n<li><strong>\u4f18\u52bf<\/strong>\uff1a\u96f6\u62f7\u8d1d\uff08\u76f4\u63a5\u64cd\u4f5c\u5185\u5b58\uff09\u3001\u65e0\u9501\uff08\u51cf\u5c11\u7ebf\u7a0b\u963b\u585e\uff09\u3001\u9ad8\u541e\u5410\uff08\u8bfb\u5199\u5206\u79bb\uff09\u3002<\/li>\n<\/ul>\n<hr>\n<h3>7.JVM\u8c03\u4f18<\/h3>\n<ul>\n<li>\n<p><strong>\u5e38\u89c1\u8c03\u4f18\u624b\u6bb5<\/strong>\uff1a<\/p>\n<ul>\n<li><strong>\u5806\u5185\u5b58\u5206\u914d<\/strong>\uff1a<code>-Xmx<\/code>\u548c<code>-Xms<\/code>\u8bbe\u4e3a\u76f8\u540c\u503c\uff08\u59828G\uff09\uff0c\u907f\u514d\u52a8\u6001\u6269\u5bb9\u6296\u52a8\u3002<\/li>\n<li><strong>GC\u7b97\u6cd5\u9009\u62e9<\/strong>\uff1a\u9ad8\u541e\u5410\u573a\u666f\u7528Parallel GC\uff0c\u4f4e\u5ef6\u8fdf\u7528G1\u6216ZGC\u3002<\/li>\n<li><strong>\u5143\u7a7a\u95f4\u9650\u5236<\/strong>\uff1a<code>-XX:MetaspaceSize=256M<\/code>\u907f\u514d\u9891\u7e41Full GC\u3002<\/li>\n<li><strong>\u7ebf\u7a0b\u5806\u6808<\/strong>\uff1a\u51cf\u5c11<code>-Xss<\/code>\u5927\u5c0f\uff08\u59821M\u2192256K\uff09\u8282\u7701\u5185\u5b58\u3002<\/li>\n<li><strong>\u76d1\u63a7\u5de5\u5177<\/strong>\uff1a\u901a\u8fc7JVisualVM\u6216Arthas\u5206\u6790\u5806\u5185\u5b58\u3001GC\u65e5\u5fd7\u3001\u7ebf\u7a0b\u963b\u585e\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u6848\u4f8b<\/strong>\uff1a\u67d0\u670d\u52a1Full GC\u9891\u7e41\uff0c\u53d1\u73b0\u662f\u7f13\u5b58\u5bf9\u8c61\u672a\u91ca\u653e\uff0c\u8c03\u6574\u4e3aLRU\u7f13\u5b58+\u5f31\u5f15\u7528\u89e3\u51b3\u3002<\/li>\n<\/ul>\n<hr>\n<h3>8.ElasticSearch\u4f60\u4eec\u662f\u5982\u4f55\u4f7f\u7528\u7684?ElasticSearch\u6df1\u5ea6\u5206\u9875\u95ee\u9898\u6709\u9047\u5230\u8fc7\u5417?\u662f\u5982\u4f55\u89e3\u51b3\u7684?<\/h3>\n<ul>\n<li>\n<p><strong>\u4f7f\u7528\u573a\u666f<\/strong>\uff1a<\/p>\n<ul>\n<li><strong>\u65e5\u5fd7\u5b58\u50a8<\/strong>\uff1a\u7ed3\u5408Logstash\u91c7\u96c6\u65e5\u5fd7\uff0c\u6309\u5929\u5206\u7d22\u5f15\u3002<\/li>\n<li><strong>\u5b9e\u65f6\u68c0\u7d22<\/strong>\uff1a\u6839\u636eIP\u3001\u65f6\u95f4\u8303\u56f4\u5feb\u901f\u67e5\u8be2\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u6df1\u5ea6\u5206\u9875\u95ee\u9898<\/strong>\uff1a<\/p>\n<ul>\n<li><strong>\u75db\u70b9<\/strong>\uff1a<code>from+size<\/code>\u65b9\u5f0f\u5728\u7ffb\u9875\u8fc7\u6df1\u65f6\u5185\u5b58\u6d88\u8017\u5927\uff08O(n)\u590d\u6742\u5ea6\uff09\u3002<\/li>\n<li>\n<p><strong>\u89e3\u51b3\u65b9\u6848<\/strong>\uff1a<\/p>\n<ol>\n<li><strong>Scroll API<\/strong>\uff1a\u4e00\u6b21\u6027\u751f\u6210\u5feb\u7167\uff08\u9002\u5408\u5bfc\u51fa\u6570\u636e\uff09\uff0c\u4f46\u5360\u7528\u8d44\u6e90\u3002<\/li>\n<li><strong>Search After<\/strong>\uff1a\u57fa\u4e8e\u4e0a\u4e00\u9875\u6700\u540e\u4e00\u6761\u6570\u636e\u7684\u6392\u5e8f\u503c\u7ee7\u7eed\u67e5\u8be2\uff08\u6027\u80fd\u6700\u4f18\uff09\u3002<\/li>\n<li><strong>\u4e1a\u52a1\u9650\u5236<\/strong>\uff1a\u4ea7\u54c1\u5c42\u9762\u7981\u6b62\u8df3\u9875\uff08\u5982\u53ea\u5141\u8bb8\u201c\u4e0b\u4e00\u9875\u201d\uff09\u3002<\/li>\n<\/ol>\n<\/li>\n<li><strong>\u53c2\u6570\u8c03\u4f18<\/strong>\uff1a\u8c03\u6574<code>max_result_window<\/code>\uff08\u9ed8\u8ba41\u4e07\uff09\u9700\u8c28\u614e\uff0c\u53ef\u80fd\u5f15\u53d1OOM\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>\u6b22\u8fce\u5173\u6ce8 \u2764<\/h2>\n<p>\u6211\u4eec\u641e\u4e86\u4e00\u4e2a<strong>\u514d\u8d39\u7684\u9762\u8bd5\u771f\u9898\u5171\u4eab\u7fa4<\/strong>\uff0c\u4e92\u901a\u6709\u65e0\uff0c\u4e00\u8d77\u5237\u9898\u8fdb\u6b65\u3002<\/p>\n<p><strong>\u6ca1\u51c6\u80fd\u8ba9\u4f60\u80fd\u5237\u5230\u81ea\u5df1\u610f\u5411\u516c\u53f8\u7684\u6700\u65b0\u9762\u8bd5\u9898\u5462\u3002<\/strong><\/p>\n<p>\u611f\u5174\u8da3\u7684\u670b\u53cb\u4eec\u53ef\u4ee5\u52a0\u6211\u5fae\u4fe1\uff1a<strong>wangzhongyang1993<\/strong>\uff0c\u5907\u6ce8\uff1a\u9762\u8bd5\u7fa4\u3002<\/p>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000046565981\">https:\/\/segmentfault.com\/a\/1190000046565981<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4eca\u5929\u5206\u4eab\u7ec4\u7ec7\u5185\u90e8\u7684\u670b\u53cb\u5728\u6781\u5154\u5feb\u9012\u7684Java\u9762\u7ecf\uff0c\u53ef\u4ee5\u770b\u5230\u85aa\u8d44\u7684\u4e0a\u9650\u633a\u9ad8\u7684\uff0c\u9762\u8bd5\u4e5f\u6709\u70b9\u96be\u5ea6\uff0c\u4e00\u8d77\u6765\u770b\u770b\uff1a \u9762\u7ecf\u8be6 [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10020801","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10020801","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10020801"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10020801\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10020801"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10020801"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10020801"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}