{"id":4092,"date":"2019-04-07T16:49:25","date_gmt":"2019-04-07T08:49:25","guid":{"rendered":"http:\/\/www.xttblog.com\/?p=4092"},"modified":"2019-05-07T15:06:07","modified_gmt":"2019-05-07T07:06:07","slug":"%e6%9c%80%e6%96%b0%e6%9c%80%e5%85%a8%e6%96%b0%e9%b2%9c%e7%83%ad%e4%b9%8e%e7%9a%84%e6%9f%90%e8%af%be%e7%bd%91java%e5%b0%b1%e4%b8%9a%e6%8c%87%e5%af%bc-%e5%89%91%e6%8c%87java%e9%9d%a2%e8%af%95-offer","status":"publish","type":"post","link":"https:\/\/www.xttblog.com\/?p=4092","title":{"rendered":"\u6700\u65b0\u6700\u5168\u65b0\u9c9c\u70ed\u4e4e\u7684\u67d0\u8bfe\u7f51[Java\u5c31\u4e1a\u6307\u5bfc] \u5251\u6307Java\u9762\u8bd5-Offer\u76f4\u901a\u8f66\u514d\u8d39\u9001"},"content":{"rendered":"\n

\u6700\u65b0\u6700\u5168\u65b0\u9c9c\u70ed\u4e4e\u7684\u67d0\u8bfe\u7f51[Java\u5c31\u4e1a\u6307\u5bfc] \u5251\u6307Java\u9762\u8bd5-Offer\u76f4\u901a\u8f66\u514d\u8d39\u9001\u3002<\/p>\n\n\n\n

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\"\"
\u5251\u6307Java\u9762\u8bd5-Offer\u76f4\u901a\u8f66<\/figcaption><\/figure><\/div>\n\n\n\n

\u8fd9\u5957\u8bfe\u7a0b\uff0c\u4ef7\u503c 249 \u5230 299 \u5143\u3002<\/p>\n\n\n\n

\"\"
Java\u9762\u8bd5\u9898500\u9053\u89c6\u9891\u6559\u7a0b<\/figcaption><\/figure>\n\n\n\n

\u8fd9\u5957\u8bfe\u7a0b\u6709\u975e\u5e38\u591a\u7684\u4f18\u70b9\u548c\u4eae\u70b9\u3002\u4e0b\u9762\u662f\u5177\u4f53\u7684\u7ae0\u8282\u5185\u5bb9\u3002<\/p>\n\n\n\n

[Java\u5c31\u4e1a\u6307\u5bfc] \u5251\u6307Java\u9762\u8bd5-Offer\u76f4\u901a\u8f66\u3002 <\/p>\n\n\n\n

\u8bfe\u7a0b\u76ee\u5f55\uff1a \u7b2c1\u7ae0 \u8bfe\u7a0b\u5bfc\u5b66 \u4e92\u8054\u7f51\u62db\u8058\u5bd2\u51ac\u4e0b\uff0c\u5f53\u524d\u4e00\u7ebf\u4e92\u8054\u7f51\u5927\u5382Java\u5de5\u7a0b\u5e08\u5c97\u4f4d\u7684\u9762\u8bd5\u66f4\u6ce8\u91cd\u8003\u5bdf\u5019\u9009\u4eba\u7684Java\u7684\u6838\u5fc3\u7c7b\u5e93\u7528\u6cd5\u548c\u6e90\u7801\u3001JVM\u5e95\u5c42\u3001GC\uff0c\u6570\u636e\u5e93\u3001redis\u7b49\u6280\u672f\u3002\u672c\u7ae0\u8282\u8be6\u7ec6\u4ecb\u7ecd\u8bfe\u7a0b\u7684\u5b66\u4e60\u76ee\u6807\uff0c\u8bfe\u7a0b\u5b89\u6392\uff0c\u8bfe\u7a0b\u6536\u83b7\u3002
\n1-1 \u5bfc\u5b66\u5fc5\u770b<\/p>\n\n\n\n

\u7b2c2\u7ae0 \u8ba1\u7b97\u673a\u7f51\u7edc\u9762\u8bd5\u6838\u5fc3 \u672c\u7ae0\u8282\u4ece\u4e00\u7ebf\u4e92\u8054\u7f51\u5927\u5382\u6536\u96c6\u4e86\u5927\u91cf\u7684\u7b14\u8bd5\u9762\u8bd5\u9898\uff0c\u4ee5\u6b64\u4e3a\u57fa\u7840\uff0c\u7edf\u8ba1\u4e86\u5e38\u8003\u7684\u77e5\u8bc6\u70b9\uff1a\u7f51\u7edc\u4e03\u5c42\u67b6\u6784\uff0cTCP\/IP\u534f\u8bae\uff0cTCP\u8fde\u63a5\uff0ctcp\/udp\u533a\u522b\uff0chttp\u4e0ehttps\uff0csocket\u539f\u7406\uff0c\u8bb2\u89e3\u4e0a\u91c7\u7528\u5c42\u5c42\u9012\u8fdb\u65b9\u5f0f\uff0c\u6709\u539f\u7406\u6709\u5b9e\u64cd\u6f14\u793a\uff0c\u8ba9\u5927\u5bb6\u66f4\u6df1\u523b\u7684\u7406\u89e3\u5e76\u638c\u63e1\u7f51\u7edc\u5c42\u76f8\u5173\u7684\u6838\u5fc3\u8003\u70b9\u3002 \u2026
\n2-1 \u7f51\u7edc\u57fa\u7840\u77e5\u8bc6\u8bb2\u89e3
\n2-2 TCP\u7684 \u4e09\u6b21\u63e1\u624b_1
\n2-3 TCP\u7684\u4e09\u6b21\u63e1\u624b_2
\n2-4 TC P\u7684\u56db\u6b21\u6325\u624b
\n2-5 TCP\u548cUDP\u7684\u533a\u522b
\n2-6 TCP\u7684\u6ed1\u7a97
\n2-7 HTTP\u76f8\u5173
\n2-8 HTTP\u76f8\u5173_2
\n2-9 HTTP\u548cHTTPS\u7684\u533a\u522b
\n2-10 socket\u76f8\u5173
\n2-11 \u7f51\u7edc\u77e5\u8bc6\u603b\u7ed3 <\/p>\n\n\n\n

\u7b2c3\u7ae0 \u6570\u636e\u5e93 \u672c\u7ae0\u8282\u8bb2\u89e3\u5173\u7cfb\u578b\u6570\u636e\u5e93\uff0c\u4ee5\u4e3b\u6d41\u7684Mysql\u4e3a\u4f8b\uff0c\u7279\u522b\u7684\u4ee5LeeCode\u9898\u5e93\u4e3a\u57fa\u51c6\uff0c\u9996\u5148\u4ece\u6570\u636e\u5e93\u7684\u67b6\u6784\u51fa\u53d1\uff0c\u6e10\u8fdb\u5f0f\u6df1\u5165\u5256\u6790\u4e86\u7d22\u5f15\u7684\u4f18\u5316\uff0c\u7136\u540e\u901a\u8fc7\u4ee3\u7801\u6f14\u793aSql\u7684\u4f18\u5316\uff0c\u6700\u540e\u6df1\u5165\u53bb\u8bb2\u89e3\u6570\u636e\u5e93\u7684\u9501\u8fd9\u4e2a\u9ad8\u7ea7\u9762\u8bd5\u4e2d\u7684\u52a0\u5206\u548c\u52a0\u85aa\u70b9\uff0c\u7d27\u63a5\u7740\u5728\u901a\u8fc7\u9501\u53bb\u8fdb\u4e00\u6b65\u5f15\u7533\u5230\u6570\u636e\u5e93\u7684ACID\u7279\u6027\uff0c\u5e76\u901a\u8fc7\u573a\u666f\u6f14\u793a\u5e76\u53d1\u60c5\u51b5\u4e0b\u5b58\u5728\u95ee\u9898\u53ca\u5176\u89e3\u51b3\u65b9\u6848\u3002\u2026
\n3-1 \u6570\u636e\u5e93\u67b6\u6784
\n3-2 \u4f18\u5316\u4f60\u7684\u7d22\u5f15-\u8fd0\u7528\u4e8c\u53c9\u67e5\u627e\u6811
\n3-3 \u4f18\u5316\u4f60\u7684\u7d22\u5f15-\u8fd0\u7528B\u6811
\n3-4 \u4f18\u5316\u4f60\u7684\u7d22\u5f15-\u8fd0\u7528B+\u6811
\n3-5 \u4f18\u5316\u4f60\u7684\u7d22\u5f15-\u8fd0\u7528Hash\u4ee5\u53caBitMap
\n3-6 \u5bc6\u96c6\u7d22\u5f15\u548c\u7a00\u758f\u7d22\u5f15\u7684\u533a\u522b
\n3-7 \u7d22\u5f15\u989d\u5916\u7684\u95ee\u9898\u4e4b\u5982\u4f55\u8c03\u4f18Sql
\n3-8 \u7d22\u5f15\u989d\u5916\u95ee\u9898\u4e4b\u6700\u5de6\u5339\u914d\u539f\u5219\u7684\u6210\u56e0
\n3-9 \u7d22\u5f15\u989d\u5916\u95ee\u9898\u4e4b\u7d22\u5f15\u662f\u5efa\u7acb\u8d8a\u591a\u8d8a\u597d\u5417
\n3-10 \u9501\u6a21\u5757\u4e4bMyISAM\u4e0eInooDB\u5173\u4e8e\u9501\u65b9\u9762\u7684\u533a\u522b
\n3-11 \u9501\u6a21\u5757\u4e4bMyISAM\u4e0eInooDB\u5173\u4e8e\u9501\u65b9\u9762\u7684\u533a\u522b_2
\n3-12 \u9501\u6a21\u5757\u4e4b\u6570\u636e\u5e93\u4e8b\u52a1\u7684\u56db\u5927\u7279\u6027
\n3-13 \u9501\u6a21\u5757\u4e4b\u4e8b\u52a1\u5e76\u53d1\u8bbf\u95ee\u4ea7\u751f\u7684\u95ee\u9898\u4ee5\u53ca\u4e8b\u52a1\u9694\u79bb\u673a\u5236
\n3-14 \u9501\u6a21\u5757\u4e4b\u4e8b\u52a1\u5e76\u53d1\u8bbf\u95ee\u4ea7\u751f\u7684\u95ee\u9898\u4ee5\u53ca\u4e8b\u52a1\u9694\u79bb\u673a\u5236_2
\n3-15 \u9501\u6a21\u5757\u4e4b\u5f53\u524d\u8bfb\u548c\u5feb\u7167\u8bfb
\n3-16 \u9501\u6a21\u5757\u4e4bRR\u5982\u4f55\u907f\u514d\u5e7b\u8bfb
\n3-17 \u9501\u6a21\u5757\u5c0f\u7ed3
\n3-18 \u5173\u952e\u8bed\u6cd5\u8bb2\u89e3
\n3-19 \u672c\u7ae0\u603b\u7ed3
\n3-20 \u5f69\u86cb\u4e4b\u9762\u8bd5\u7684\u4e09\u5c42\u67b6\u6784<\/p>\n\n\n\n

\u7b2c4\u7ae0 Redis \u672c\u7ae0\u8282\u4ee5\u975e\u5173\u7cfb\u578b\u6570\u636e\u5e93\/\u7f13\u5b58\u6570\u636e\u5e93Redis\u4e3a\u6838\u5fc3\uff0c\u9996\u5148\u4ecb\u7ecdredis\u7684\u5e38\u7528\u6570\u636e\u7c7b\u578b\u53ca\u5176\u4f7f\u7528\uff0c\u7136\u540e\u901a\u8fc7\u5178\u578b\u7684\u9762\u8bd5\u573a\u666f\uff0c\u8fdb\u4e00\u6b65\u53bb\u8bb2\u5206\u5e03\u5f0f\u9501\u3001\u5f02\u6b65\u961f\u5217\uff0c\u5e76\u8fdb\u884c\u4ee3\u7801\u7684\u6f14\u793a\uff0c\u6700\u540e\u8c08\u53caredis\u7684\u6301\u4e45\u5316\u6280\u672f\uff0c\u63d0\u5347\u540c\u5b66\u7684\u5185\u529f\u4fee\u4e3a\u3002
\n4-1 Redis\u7b80\u4ecb
\n4-2 Redis\u5e38\u7528\u6570\u636e\u7c7b\u578b
\n4-3 \u4ece\u6d77\u91cf\u6570\u636e\u91cc\u67e5\u8be2\u67d0\u4e00\u56fa\u5b9a\u524d\u7f00\u7684key
\n4-4 \u5982\u4f55\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501
\n4-5 \u5982\u4f55\u5b9e\u73b0\u5f02\u6b65\u961f\u5217
\n4-6 \u6301\u4e45\u5316\u65b9\u5f0f\u4e4bRDB
\n4-7 \u6301\u4e45\u5316\u65b9\u5f0f\u4e4bAOF\u4ee5\u53ca\u6df7\u5408\u6a21\u5f0f
\n4-8 Pipeline\u53ca\u4e3b\u4ece\u540c\u6b65
\n4-9 Redis\u96c6\u7fa4
\n4-10 \u672c\u7ae0\u603b\u7ed3<\/p>\n\n\n\n

\u7b2c5\u7ae0 Linux Linux\u5de5\u4f5c\u4e2d\u7528\u5f97\u6700\u591a\u7684\u6307\u4ee4\u4ecb\u7ecd\uff0c\u5982find,grep,awk,sed\u7b49
\n5-1 Linux\u7684\u4f53\u7cfb\u7ed3\u6784
\n5-2 \u67e5\u627e\u7279\u5b9a\u6587\u4ef6
\n5-3 \u68c0\u7d22\u6587\u4ef6\u5185\u5bb9
\n5-4 \u5bf9\u65e5\u5fd7\u5185\u5bb9\u505a\u7edf\u8ba1
\n5-5 \u6279\u91cf\u66ff\u6362\u6587\u4ef6\u5185\u5bb9\u53ca\u672c\u7ae0\u5c0f\u7ed3
\n5-6 \u5f69\u86cb\u4e4b\u5bb9\u6613\u5ffd\u7565\u7684\u7ec6\u8282<\/p>\n\n\n\n

\u7b2c6\u7ae0 Java\u5e95\u5c42\u77e5\u8bc6\uff1aJVM \u672c\u7ae0\u8282\u9996\u5148\u4eceJava\u7684\u5e73\u53f0\u65e0\u5173\u6027\u51fa\u53d1\uff0c\u5f15\u51faJVM\u8fd9\u4e2a\u9762\u8bd5\u9ad8\u85aa\u5fc5\u8003\u70b9\uff0c\u7136\u540e\u5256\u6790JVM\u7684\u7c7b\u52a0\u8f7d\u6d41\u7a0b\uff0c\u4ee5\u53ca\u7c7b\u52a0\u8f7d\u5668\uff0c\u5e76\u6df1\u5165\u5230\u7c7b\u52a0\u8f7d\u7684\u5e95\u5c42\u673a\u5236-\u53cc\u4eb2\u59d4\u6d3e\uff0c\u6700\u540e\u8fdb\u9636\u5230JVM\u4f53\u7cfb\u7ed3\u6784\u4e4b\u5185\u5b58\u6a21\u578b\uff0c\u6df1\u5ea6\u89e3\u6790\u5185\u5b58\u6a21\u578b\u76f8\u5173\u7684\u8003\u70b9\u3002\u4e3a\u540c\u5b66\u7684\u9ad8\u85aaOffer\u63d0\u4f9b\u5f3a\u6709\u529b\u4fdd\u969c\u3002 \u2026
\n6-1 \u8c08\u8c08\u4f60\u5bf9Java\u7684\u7406\u89e3
\n6-2 \u5e73\u53f0\u65e0\u5173\u6027\u5982\u4f55\u5b9e\u73b0
\n6-3 JVM\u5982\u4f55\u52a0\u8f7dclass\u6587\u4ef6
\n6-4 \u4ec0\u4e48\u662f\u53cd\u5c04
\n6-5 \u8c08\u8c08ClassLoader
\n6-6 ClassLoader\u7684\u53cc\u4eb2\u59d4\u6d3e\u673a\u5236
\n6-7 loadClass\u548cforName\u7684\u533a\u522b
\n6-8 Java\u5185\u5b58\u6a21\u578b\u4e4b\u7ebf\u7a0b\u72ec\u5360\u90e8\u5206-1
\n6-9 Java\u5185\u5b58\u6a21\u578b\u4e4b\u7ebf\u7a0b\u72ec\u5360\u90e8\u5206-2
\n6-10 Java\u5185\u5b58\u6a21\u578b\u4e4b\u7ebf\u7a0b\u5171\u4eab\u90e8\u5206
\n6-11 Java\u5185\u5b58\u6a21\u578b\u4e4b \u5e38\u8003\u9898\u89e3\u6790-1
\n6-12 Java\u5185\u5b58\u6a21\u578b\u4e4b\u5e38\u8003\u9898\u89e3\u6790-2
\n6-13 \u5f69\u86cb\u4e4b\u627e\u5de5\u4f5c\u7684\u6700\u4f73\u65f6\u671f<\/p>\n\n\n\n

\u7b2c7\u7ae0 Java\u5e95\u5c42\u77e5\u8bc6\uff1aGC\u76f8\u5173 \u672c\u7ae0\u8282\u4e13\u6ce8\u4e8eJava\u7684\u5783\u573e\u56de\u6536\uff0c\u5e72\u8d27\u6ee1\u6ee1\u3002\u8eab\u4e3aJava\u7a0b\u5e8f\u5458\uff0c\u90fd\u77e5\u9053Java\u8bed\u8a00\u7684\u9ad8\u6027\u80fd\u5176\u5b9e\u6709\u8d56\u4e8e\u53ef\u9760\u7684GC\u673a\u5236\u3002\u90a3\u4e48\u672c\u7ae0\u5c06\u4ece\u56f4\u7ed5GC\u76f8\u5173\u7684\u7b97\u6cd5\u5c55\u5f00\uff0c\u8ba9\u540c\u5b66\u4eec\u61c2\u5f97GC\u5404\u7c7b\u7b97\u6cd5\u7684\u539f\u7406\uff0c\u4ee5\u53ca\u5982\u4f55\u8fdb\u884c\u76f8\u5173\u7684\u914d\u7f6e\u3002
\n7-1 \u5783\u573e\u56de\u6536\u4e4b\u6807\u8bb0\u7b97\u6cd5
\n7-2 Java\u5783\u573e\u56de\u6536\u4e4b\u56de\u6536\u7b97\u6cd5
\n7-3 Java\u5783\u573e\u56de\u6536\u4e4b\u65b0\u751f\u4ee3\u5783\u573e\u6536\u96c6\u5668
\n7-4 Java\u5783\u573e\u56de\u6536\u4e4b\u8001\u5e74\u5783\u573e\u6536\u96c6\u5668
\n7-5 Java\u5783\u573e\u56de\u6536\u4e4b\u5e38\u89c1\u9762\u8bd5\u9898
\n7-6 Java\u5783\u573e\u56de\u6536\u4e4b\u5e38\u89c1\u9762\u8bd5\u9898_2
\n7-7 Java\u5783\u573e\u56de\u6536\u4e4b\u603b\u7ed3
\n7-8 \u5f69\u86cb\u4e4b\u627e\u5de5\u4f5c\u7684\u6e20\u9053\u5206\u6790<\/p>\n\n\n\n

\u7b2c8\u7ae0 Java\u591a\u7ebf\u7a0b\u4e0e\u5e76\u53d1 \u672c\u7ae0\u8282\u56f4\u7ed5\u5de5\u4f5c\u4e2d\u5e38\u7528\uff0c\u9762\u8bd5\u4e2d\u5fc5\u8003\u7684\u7ebf\u7a0b\u548c\u5e76\u53d1\u77e5\u8bc6\uff0c\u539f\u7406\u548c\u5b9e\u64cd\u76f8\u8f85\u76f8\u6210\u3002\u9996\u5148\u4ecb\u7ecd\u8fdb\u7a0b\u548c\u7ebf\u7a0b\uff0c\u7136\u540e\u8bb2\u89e3\u7ebf\u7a0b\u7684\u72b6\u6001\uff0c\u4e4b\u540e\u5207\u5165\u8bb2\u8bb2hapens-before\u4e4b\u7c7b\u7684\u9501\uff0c\u6700\u540e\u8bb2\u8bb2\u7ebf\u7a0b\u7c7b\u3001\u7ebf\u7a0b\u6c60\u53ca\u5176\u8fd0\u884c\u673a\u5236\u3002\u8ba9\u4f60\u5728\u591a\u7ebf\u7a0b\u548c\u5e76\u53d1\u9762\u8bd5\u4e2d\u6709\u7684\u653e\u77e2\uff0c\u5982\u864e\u6dfb\u7ffc\u3002\u2026
\n8-1 \u8fdb\u7a0b\u548c\u7ebf\u7a0b\u7684\u533a\u522b
\n8-2 \u7ebf\u7a0b\u7684start\u548crun\u65b9\u6cd5\u7684\u533a\u522b
\n8-3 Thread\u548cRunnable\u7684\u5173\u7cfb
\n8-4 \u5982\u4f55\u5b9e\u73b0\u5904\u7406\u7ebf\u7a0b\u7684\u8fd4\u56de\u503c
\n8-5 \u7ebf\u7a0b\u7684\u72b6\u6001
\n8-6 sleep\u548cwait\u7684\u533a\u522b
\n8-7 notify\u548cnotifyall\u7684\u533a\u522b
\n8-8 yield\u51fd\u6570
\n8-9 interrupt\u51fd\u6570
\n8-10 \u524d\u8ff0\u65b9\u6cd5\u53ca\u7ebf\u7a0b\u72b6\u6001\u603b\u7ed3<\/p>\n\n\n\n

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\u7b2c11\u7ae0 Java\u6846\u67b6-Spring \u672c\u7ae0\u8282\u805a\u7126\u6846\u67b6\u9762\u8bd5\uff0c\u4ee5\u4e3b\u6d41\u6846\u67b6spring\u4e3a\u4f8b\uff0c\u8bb2\u89e3IOC\u601d\u60f3\uff0c\u89e3\u8026\u3001AOP\u7528\u9014\uff0c\u4e8b\u72695\u4e2a\u4e8b\u52a1\u9694\u79bb\u7ea7\u522b \u3001 \u4e03\u4e2a\u4e8b\u52a1\u4f20\u64ad\u884c\u4e3a\uff0c\u6700\u540e\u901a\u8fc7\u4ee3\u7801\u4f1a\u624b\u628a\u624b\u5b9e\u73b0\u4e00\u4e2a\u7b80\u6613\u7684spring\u3002\u5c06\u539f\u7406\u548c\u5b9e\u73b0\u7ed3\u5408\uff0c\u5bf9\u7b14\u8bd5\u548c\u9762\u8bd5\u8fdb\u884c\u52a0\u6301\uff0c\u63d0\u5347\u7f16\u7a0b\u80fd\u529b\u3002 <\/p>\n\n\n\n

\u7b2c12\u7ae0 \u8bfe\u7a0b\u603b\u7ed3\u4e0e\u5c55\u671b \u56de\u987e\u8bfe\u7a0b\u6838\u5fc3\u5185\u5bb9\u3002 <\/p>\n\n\n\n

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\"\"
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\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/<\/p>

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\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a\u4e1a\u4f59\u8349<\/a>\uff1a » \u6700\u65b0\u6700\u5168\u65b0\u9c9c\u70ed\u4e4e\u7684\u67d0\u8bfe\u7f51[Java\u5c31\u4e1a\u6307\u5bfc] \u5251\u6307Java\u9762\u8bd5-Offer\u76f4\u901a\u8f66\u514d\u8d39\u9001<\/a><\/p>","protected":false},"excerpt":{"rendered":"

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