{"id":10008134,"date":"2023-08-22T15:52:58","date_gmt":"2023-08-22T07:52:58","guid":{"rendered":"https:\/\/blog.itmax.cn\/?p=10008134"},"modified":"2023-08-22T15:52:58","modified_gmt":"2023-08-22T07:52:58","slug":"%e4%bb%8e%e4%b8%80%e4%ba%9b%e5%b8%b8%e8%a7%81%e7%9a%84%e9%94%99%e8%af%af%e8%81%8a%e8%81%8amysql%e6%9c%8d%e5%8a%a1%e7%ab%af%e7%9a%84%e5%85%b3%e9%94%ae%e9%85%8d%e7%bd%ae-%e4%ba%ac%e4%b8%9c%e4%ba%91","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10008134","title":{"rendered":"\u4ece\u4e00\u4e9b\u5e38\u89c1\u7684\u9519\u8bef\u804a\u804amysql\u670d\u52a1\u7aef\u7684\u5173\u952e\u914d\u7f6e | \u4eac\u4e1c\u4e91\u6280\u672f\u56e2\u961f"},"content":{"rendered":"

\u80cc\u666f<\/h2>\n

\u6bcf\u4e00\u5e74\u90fd\u8fdb\u884c\u5927\u4fc3\u524d\u538b\u6d4b\uff0c\u6bcf\u4e00\u6b21\u90fd\u9700\u8981\u518d\u6b21\u5173\u6ce8\u5230\u4e00\u4e9b\u57fa\u7840\u8d44\u6e90\u7684\u4f7f\u7528\u95ee\u9898\uff0c\u8ba2\u5355\u4e2d\u5fc3\u8fd9\u8fb9\u6570\u636e\u5e93\u6bd4\u8f83\u591a\uff0c\u6700\u8fd1\u9891\u7e41\u62a5\u6570\u636e\u5e93\u5f02\u5e38\uff0c\u6240\u4ee5\u5bf9\u6570\u636e\u5e93\u4e00\u4e9b\u914d\u7f6e\u95ee\u9898\u4e5f\u8fdb\u884c\u4e86\u7814\u7a76\uff0c\u672c\u6587\u7ed9\u51fa\u4e00\u4e9b\u5e38\u89c1\u7684\u6570\u636e\u5e93\u914d\u7f6e\uff0c\u8bf4\u660e\u8fd9\u4e9b\u914d\u7f6e\u5bf9\u6211\u4eec\u6570\u636e\u5e93\u4f7f\u7528\u7684\u5f71\u54cd\u3002\u76ee\u524d\uff0cMySQL\u670d\u52a1\u7aef\u914d\u7f6e\u5bf9\u4f7f\u7528\u65b9\u6765\u8bf4\u662f\u4e0d\u53ef\u66f4\u6539\u7684\uff0c\u9700\u8981\u8054\u7cfbDBA\u8fdb\u884c\u64cd\u4f5c\u3002\u8fd9\u4e9b\u914d\u7f6e\u64cd\u4f5c\u5bf9\u6211\u4eec\u6765\u8bf4\u662f\u4e00\u4e2a\u9ed1\u76d2\uff0c\u4f46\u662f\u4e86\u89e3\u6838\u5fc3\u914d\u7f6e\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5feb\u901f\u5b9a\u4f4d\u6570\u636e\u5e93\u95ee\u9898\u539f\u56e0\u3002<\/p>\n

\u95ee\u9898\u6c47\u603b<\/h2>\n

\u95ee\u9898\u4e00\u3001too many connections<\/h4>\n

\u6570\u636e\u5e93\u670d\u52a1\u7aef\u914d\u7f6e\uff1amax_connections
\u8fd9\u4e2a\u95ee\u9898\u6211\u4eec\u8fd9\u8fb9\u7ebf\u4e0a\u9047\u5230\u8fc7\uff0c\u5bf9\u4e8e\u540c\u4e00\u4e2a\u6570\u636e\u5e93\uff0c\u6709\u591a\u4e2a\u7cfb\u7edf\u90fd\u8fde\u63a5\u4e86\u6570\u636e\u5e93\uff0c\u5bfc\u81f4\u8fde\u63a5\u6570\u636e\u5e93\u7684\u673a\u5668\u6bd4\u8f83\u591a\uff0c\u5728\u6570\u636e\u5e93qps\u6bd4\u8f83\u5927\u65f6\uff0c\u521b\u5efa\u7684\u8fde\u63a5\u6570\u6bd4\u8f83\u5927\uff0c\u5bfc\u81f4\u8fde\u63a5\u7684\u603b\u6570\u8d85\u8fc7\u4e86\u6570\u636e\u5e93\u670d\u52a1\u7aef\u8fde\u63a5\u7684\u9650\u5236\u9608\u503c\uff0c\u4ece\u800c\u62a5\u4e86\u8fd9\u4e2a\u9519\u8bef\u3002<\/p>\n

\u4e3e\u4e2a\u6817\u5b50\uff1a\u5982\u679cmax_connections\u8bbe\u7f6e\u4e3a1000\uff0c\u6211\u4eec\u8fd9\u8fb9\u6709200\u53f0\u673a\u5668\uff0c\u6bcf\u53f0\u673a\u5668\u6700\u5927\u8fde\u63a5\u6570\u4e3a20\uff0c\u5728\u8fde\u63a5\u6bd4\u8f83\u5927\u65f6\uff0c\u53ef\u80fd\u5927\u81f4\u8fde\u63a5\u7684\u603b\u6570\u4e3a200 * 20 = 4000 > 1000\uff0c\u8d85\u8fc7\u6570\u636e\u5e93\u7684\u9650\u5236\u3002<\/p>\n

\u4e0b\u9762\u8ba9\u6211\u4eec\u5728\u672c\u5730\u6f14\u793a\u4e00\u4e0b\u8fd9\u79cd\u9519\u8bef\uff1a<\/p>\n

\u9996\u5148\u67e5\u8be2\u5f53\u524d\u670d\u52a1\u7aef\u6700\u5927\u8fde\u63a5\u6570\uff1a
\"\"<\/p>\n

\u5982\u679c\u8fd9\u4e2a\u53c2\u6570\u592a\u5927\uff0c\u4e0d\u597d\u6f14\u793a\u7684\u8bdd\uff0c\u53ef\u4ee5\u901a\u8fc7\u5982\u4e0b\u53c2\u6570\uff0c\u5c06\u8fd9\u4e2a\u6570\u503c\u6539\u5c0f\u4e9b
\"\"<\/p>\n

\u4e0b\u9762\u901a\u8fc7\u5ba2\u6237\u7aef\u5c1d\u8bd5\u8fde\u63a5\u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u770b\u5230\uff0c\u76f4\u63a5\u62a5\u9519\u4e86
\"\"<\/p>\n

\u5bf9\u4e8e\u8fd9\u79cd\u95ee\u9898\u6709\u4e24\u79cd\u89e3\u51b3\u529e\u6cd5\uff1a
\u7b2c\u4e00\u79cd\uff1a\u8054\u7cfbDBA\u5c06max\/_connections\u8bbe\u7f6e\u7684\u5927\u4e00\u4e9b\uff0cDBA\u4e4b\u524d\u53cd\u9988max\/_connections\u8fd9\u4e2a\u53c2\u6570\u6709\u81ea\u52a8\u589e\u957f\u7684\u903b\u8f91;
\u7b2c\u4e8c\u79cd\u65b9\u6cd5\uff1a\u5982\u679c\u6570\u636e\u5e93\u64cd\u4f5cqps\u5e76\u4e0d\u662f\u5f88\u5927\uff0c\u53ef\u4ee5\u5c06\u6bcf\u53f0\u673a\u5668\u7684\u6570\u636e\u5e93\u8fde\u63a5\u6700\u5927\u503c\u8bbe\u7f6e\u5c0f\u4e00\u4e9b\uff0c\u5982\u679c\u8bbe\u7f6e\u4e86\u521d\u59cb\u5316\u8fde\u63a5\u5927\u5c0f\uff0c\u8981\u8003\u8651\u673a\u5668\u6570\u7684\u589e\u957f\uff0c\u968f\u7740\u673a\u5668\u6570\u7684\u589e\u957f\uff0c\u8fde\u63a5\u7684\u603b\u6570\u80af\u5b9a\u4f1a\u9012\u589e\u7684\u3002<\/p>\n

\u95ee\u9898\u4e8c\u3001\u6162\u65e5\u5fd7\u957f\u65f6\u95f4\u6267\u884c\u5bfc\u81f4\u670d\u52a1\u4e0d\u53ef\u7528<\/h4>\n

\u6570\u636e\u5e93\u5e93\u670d\u52a1\u7aef\u914d\u7f6e\uff1amax\/_execution\/_time
\u4e4b\u524d\u5199\u4e86\u4e00\u7bc7\u6587\u7ae0\u804a\u4e86\u4e00\u4e0b\u5982\u4f55\u5728\u5ba2\u6237\u7aef\u914d\u7f6e\u53c2\u6570\u89e3\u51b3\u6162\u65e5\u5fd7\u957f\u65f6\u95f4\u6267\u884c\u95ee\u9898\uff0c\u8fd9\u4e2a\u5728\u672c\u5730\u9a8c\u8bc1\u662f\u6ca1\u6709\u95ee\u9898\u7684\uff0c\u4f46\u662f\u7531\u4e8e\u6211\u4eec\u7ebf\u4e0a\u73af\u5883\u4f7f\u7528\u7684\u662fJED\uff0cJED\u7684\u67b6\u6784\u591a\u4e86\u4e2d\u95f4\u4ee3\u7406\u5c42\uff0c\u5728\u5ba2\u6237\u7aef\u6267\u884cKILL QUERY CONNECTION_ID\u4f1a\u63d0\u793a\u5931\u8d25\uff0c\u5bfc\u81f4\u6ca1\u6cd5\u505c\u6b62\u6162sql\uff08\u8fd9\u4e2a\u597d\u5751\uff0c\u636e\u8bf4JED\u540e\u671f\u4f1a\u4f18\u5316\u8fd9\u4e2a\u95ee\u9898\uff09\u3002<\/p>\n

\u65e2\u7136\u76ee\u524d\u5ba2\u6237\u7aef\u6ca1\u6cd5\u63a7\u5236\u6162sql\u505c\u6b62\uff0c\u4ece\u5b98\u7f51\u4e0a\u770b\u4e86\u4e00\u4e0bmysql\u670d\u52a1\u7aef\u7684\u914d\u7f6e\u53c2\u6570\uff0c\u53d1\u73b0\u6709\u4e00\u4e2a\u53c2\u6570\u80fd\u591f\u63a7\u5236\u670d\u52a1\u7aef\u4e3b\u52a8\u8d85\u65f6\u505c\u6b62sql\uff0c\u53c2\u6570\u53d8\u91cf\uff1amax\/_execution\/_time\uff0c\u672c\u5730\u73af\u5883\u9a8c\u8bc1\u5982\u4e0b\uff1a<\/p>\n

\u9996\u5148\u5c06sql\u6267\u884c\u8d85\u65f6\u65f6\u95f4\u8bbe\u7f6e\u4e3a2s\uff1a
\"\"<\/p>\n

\u7136\u540e\u6267\u884c\u4e00\u4e2asleep\u51fd\u6570\uff0c\u8ba9\u6267\u884c\u65f6\u95f4\u8fbe\u523010s\uff0c\u53ef\u4ee5\u770b\u51fa\u6765\u6267\u884c\u76f4\u63a5\u4e2d\u65ad\u4e86\uff0c\u56e0\u4e3a\u8d85\u8fc7\u4e862s\u7684\u6700\u5927\u8d85\u65f6\u65f6\u95f4\uff1a
\"\"<\/p>\n

\u95ee\u9898\u4e09\u3001\u670d\u52a1\u7aef\u8fde\u63a5\u90fd\u65ad\u5f00\u4e86\uff0c\u4f46\u662f\u5ba2\u6237\u7aef\u8fd8\u7528\u65e0\u6548\u8fde\u63a5\u53d1\u9001\u8bf7\u6c42<\/h4>\n

\u6570\u636e\u5e93\u5e93\u670d\u52a1\u7aef\u914d\u7f6e\uff1await_timeout
\u4e4b\u524d\u7ebf\u4e0a\u7528\u7684\u662fmysql\uff0c\u901a\u8fc7mysql\u9a71\u52a8\u5305\u76f4\u8fde\u6570\u636e\u5e93\uff0c\u6570\u636e\u5e93\u670d\u52a1\u7aef\u9ed8\u8ba4\u8fde\u63a5\u7a7a\u95f2\u65f6\u95f4\u662f8\u5c0f\u65f6\uff0c\u540e\u6765\u54cd\u5e94\u516c\u53f8\u53f7\u53ec\uff0c\u5c06\u4f20\u7edf\u7684mysql\u5207\u5230\u4e86jed\uff08\u5e95\u5c42\u4e5f\u662fmysql\uff09, jed\u7531\u4e8e\u7f51\u5173\u5c42\u7684\u5b58\u5728\uff0c\u5ba2\u6237\u7aef\u662f\u901a\u8fc7mysql\u9a71\u52a8\u5305\u8ddf\u7f51\u5173\u5c42\u8fdb\u884c\u76f4\u8fde\uff0c\u7f51\u5173\u8fd9\u4e00\u5c42\u6570\u636e\u5e93\u7a7a\u95f2\u8fde\u63a5\u8d85\u65f6\u65f6\u95f4\u4ec5\u4ec510\u5206\u949f\uff0c\u5f53\u65f6\u5728\u5ba2\u6237\u7aef\u8fdb\u884c\u7a7a\u95f2\u8fde\u63a5\u63a2\u6d3b\u65f6\u95f4\u8d85\u8fc710\u5206\u949f\uff0c\u5bfc\u81f4\u6570\u636e\u5e93\u62a5\u9519\u9891\u7e41\u3002\u73b0\u5728\u5df2\u7ecf\u627e\u4e0d\u5230\u5386\u53f2\u7684\u6570\u636e\u5e93\u5f02\u5e38\u65e5\u5fd7\u4e86\uff0c\u672c\u5730\u6a21\u62df\u4e86\u4e00\u4e0b\uff0c\u9a8c\u8bc1\u5982\u4e0b\uff1a<\/p>\n

\u5148\u5c06\u672c\u5730\u7a7a\u95f2\u8fde\u63a5\u8d85\u65f6\u8bbe\u7f6e\u4e3a10s
\"\"<\/p>\n

\u9a8c\u8bc1\u6e90\u7801\u5982\u4e0b\uff0c\u8ba9\u4e24\u6761sql\u6267\u884c\u65f6\u95f4\u8d85\u8fc710s\uff0c\u53ef\u4ee5\u53d1\u73b0\u7b2c\u4e8c\u6b21\u6267\u884csql\u65f6\u6267\u884c\u62a5\u9519\u4e86
\"\"
\"\"<\/p>\n

\u6240\u4ee5\uff0c\u5982\u679c\u6362\u4e86\u6570\u636e\u6e90\uff0c\u9700\u8981\u786e\u8ba4\u4e0b\u670d\u52a1\u7aef\u7684\u7a7a\u95f2\u8fde\u63a5\u8d85\u65f6\u65f6\u95f4\u8bbe\u7f6e\uff0c\u514d\u5f97\u914d\u7f6e\u7684\u503c\u548c\u5ba2\u6237\u7aef\u68c0\u6d4b\u7a7a\u95f2\u8fde\u63a5\u5065\u5eb7\u6027\u68c0\u6d4b\u95f4\u9694\u4e0d\u5339\u914d\uff0c\u51fa\u73b0\u610f\u6599\u4e0d\u5230\u7684\u7ed3\u679c\u3002<\/p>\n

\u6ce8\uff1a\u6211\u4eec\u8fd9\u8fb9\u4f7f\u7528\u7684\u662fDBCP\u6570\u636e\u6e90\u8fde\u63a5\u6c60\uff0c\u914d\u7f6e\u5982\u4e0b\uff1a<\/p>\n

<bean id="abstractParallelProductWriteDataSource" class="org.apache.commons.dbcp.BasicDataSource" abstract="true" destroy-method="close" init-method="createDataSource">\n        <property name="driverClassName" value="com.mysql.jdbc.Driver" \/>\n        <property name="username" value="${db.online.write.username}" \/>\n        <property name="password" value="${db.online.write.password}" \/>\n        <property name="initialSize" value="3" \/>\n        <property name="minIdle" value="3" \/><!--\u6700\u5c0f\u94fe\u63a5\u6570 -->\n        <property name="maxIdle" value="3" \/><!--\u6700\u5927\u94fe\u63a5\u6570 -->\n        <property name="maxActive" value="8" \/><!--\u6700\u5927\u6d3b\u8dc3\u94fe\u63a5\u6570 -->\n        <property name="maxWait" value="200" \/>\n        <property name="validationQuery" value="select 1" \/>\n        <property name="testOnBorrow" value="false" \/>\n        <property name="removeAbandonedTimeout" value="10" \/>\n        <property name="removeAbandoned" value="true" \/>\n        <!-- \u6c60\u4e2d\u7684\u8fde\u63a5\u7a7a\u95f210\u5206\u949f\u540e\u88ab\u56de\u6536,\u9ed8\u8ba4\u503c\u5c31\u662f30\u5206\u949f -->\n        <property name="minEvictableIdleTimeMillis" value="600000" \/>\n        <!-- \u6bcf5\u5206\u949f\u8fd0\u884c\u4e00\u6b21\u7a7a\u95f2\u8fde\u63a5\u56de\u6536\u5668 -->\n        <property name="timeBetweenEvictionRunsMillis" value="300000" \/>\n        <!--\u6307\u660e\u8fde\u63a5\u662f\u5426\u88ab\u7a7a\u95f2\u8fde\u63a5\u56de\u6536\u5668(\u5982\u679c\u6709)\u8fdb\u884c\u68c0\u9a8c.\u5982\u679c\u68c0\u6d4b\u5931\u8d25,\u5219\u8fde\u63a5\u5c06\u88ab\u4ece\u6c60\u4e2d\u53bb\u9664 -->\n        <property name="testWhileIdle" value="true"\/>\n        <!--\u5728\u6bcf\u6b21\u7a7a\u95f2\u8fde\u63a5\u56de\u6536\u5668\u7ebf\u7a0b(\u5982\u679c\u6709)\u8fd0\u884c\u65f6\u68c0\u67e5\u7684\u8fde\u63a5\u6570\u91cf\uff0c\u9ed8\u8ba4\u503c\u662f3 -->\n        <property name="numTestsPerEvictionRun" value="5"\/>\n    <\/bean>\n\n<\/code><\/pre>\n
timeBetweenEvictionRunsMillis\u8fd9\u4e2a\u53c2\u6570\u914d\u7f6e\u7684\u662f\u68c0\u6d4b\u7a7a\u95f2\u8fde\u63a5\u7684\u95f4\u9694\u65f6\u95f4\uff0c\u5982\u679c\u670d\u52a1\u7aef\u7a7a\u95f2\u8fde\u63a510\u5206\u949f\u5c31\u65ad\u5f00\u4e86\uff0c\u8fd9\u4e2a\u65f6\u95f4\u9700\u8981\u5c0f\u4e8e10\u5206\u949f\u3002minEvictableIdleTimeMillis\u8fd9\u4e2a\u65f6\u95f4\u662f\u5224\u65ad\u5f53\u524d\u8fde\u63a5\u5df2\u7ecf\u7a7a\u95f2\u4e86\u591a\u4e45\u4e86\uff0c\u76ee\u524d\u914d\u7f6e\u7684\u662f10\u5206\u949f\u3002<\/p>\n
\u5176\u4ed6\u5173\u952e\u914d\u7f6e\u6c47\u603b<\/h2>\n
    \n
  1. thread_handling  
    \u914d\u7f6e\u4e86\u670d\u52a1\u7aef\u7684\u7ebf\u7a0b\u5904\u7406\u6a21\u578b\uff0c\u4e3b\u8981\u7684\u503c\u6709no-threads\u3001one-thread-per-connection\u3001loaded-dynamically\u3002\u5176\u4e2dno-threads\u8868\u793a\u540c\u4e00\u65f6\u523b\u53ea\u80fd\u6709\u4e00\u4e2a\u8fde\u63a5\u88ab\u4e00\u4e2a\u7ebf\u7a0b\u5904\u7406\u3002one-thread-per-connection\u8868\u793a\u5bf9\u4e8e\u6bcf\u4e00\u4e2a\u8fde\u63a5\u8bf7\u6c42\u90fd\u6709\u4e00\u4e2a\u7ebf\u7a0b\u6765\u5904\u7406\u3002loaded-dynamically\u662fmysql\u7684\u7ebf\u7a0b\u6c60\u6a21\u5f0f\uff0c\u76ee\u524d\u9ed8\u8ba4\u7684\u662fone-thread-per-connection\uff0c\u6240\u4ee5\u8fde\u63a5\u592a\u591a\u7684\u8bdd\uff0c\u4e5f\u4f1a\u5bfc\u81f4\u521b\u5efa\u7684\u7ebf\u7a0b\u5feb\u901f\u589e\u52a0\uff0c\u6d88\u8017\u7cfb\u7edf\u7684\u8d44\u6e90\u3002<\/li>\n
  2. slow\/_query\/_log  
    \u7528\u6765\u63a7\u5236\u662f\u5426\u6253\u5370\u6162\u65e5\u5fd7\uff0c\u5982\u679c\u9700\u8981\u5206\u6790\u7cfb\u7edf\u6027\u80fd\u60c5\u51b5\uff0c\u53ef\u4ee5\u6253\u5f00\u8fd9\u4e2a\u5f00\u5173\uff0c\u8fdb\u884c\u6162\u65e5\u5fd7\u5206\u6790\u3002<\/li>\n
  3. profiling  
    \u662f\u5426\u542f\u7528sql\u67e5\u8be2\u6027\u80fd\u5206\u6790\uff0c\u7c7b\u4f3c\u4e8edebug\u65e5\u5fd7\uff0c\u7ebf\u4e0a\u73af\u5883\u9700\u8981\u5173\u95ed\uff0c\u6bd4\u8f83\u8017\u6027\u80fd\uff0c\u8fd9\u4e2a\u53c2\u6570\u540e\u9762mysql\u7248\u672c\u4f1a\u5e9f\u5f03\u6389\uff0c\u73b0\u5728\u8fd8\u662f\u53ef\u4ee5\u5148\u4f7f\u7528\u7740\uff0c\u65b0\u7684\u4f7f\u7528\u65b9\u5f0f\u53ef\u4ee5\u53c2\u8003\uff1ahttps:\/\/dev.mysql.com\/doc\/refman\/8.0\/en\/performance-schema-query-profiling.html\u3002<\/a><\/li>\n<\/ol>\n
    \u7531\u4e8e\u8fd9\u4e2a\u53c2\u6570\u7ebf\u4e0a\u662f\u5173\u95ed\u7740\uff0c\u53ea\u80fd\u8ba9DBA\u4e34\u65f6\u5e2e\u5fd9\u67e5\u8be2\u4e0b\u5206\u6790\u7ed3\u679c\uff0c\u5e73\u5e38\u4e5f\u6ca1\u548b\u7528\uff0c\u611f\u89c9\u8fd8\u662f\u4e00\u4e2a\u4e0d\u9519\u7684\u5de5\u5177\uff0c\u5206\u6790\u7ed3\u679c\u7c7b\u4f3c\u4e0b\u9762\u622a\u56fe\uff1a  
    \"\"<\/p>\n
    \u603b\u7ed3<\/h2>\n
    mysql\u670d\u52a1\u7aef\u914d\u7f6e\u592a\u591a\uff0c\u76ee\u524d\u5de5\u4f5c\u4e2d\u4e3b\u8981\u63a5\u89e6\u4e86\u4e0a\u8ff0\u8fd9\u4e9b\u914d\u7f6e\uff0c\u611f\u89c9\u8fd8\u4e0d\u9519\u7684\uff0c\u5728\u5e73\u5e38\u5206\u6790\u6570\u636e\u5e93\u95ee\u9898\u4e0a\u80fd\u591f\u7ed9\u4e88\u4e00\u5b9a\u7684\u5e2e\u52a9\uff0c\u5927\u5bb6\u4e5f\u53ef\u4ee5\u53bb\u591a\u4e86\u89e3\u4e00\u4e0b\uff0c\u66f4\u591a\u7684\u914d\u7f6e\u53ef\u4ee5\u53c2\u8003\u5b98\u65b9\u6587\u6863\uff1amysql\u670d\u52a1\u7aef\u914d\u7f6e\u5b98\u7f51<\/a><\/p>\n
    \n
    \u4f5c\u8005\uff1a\u4eac\u4e1c\u96f6\u552e \u59dc\u660c\u4f1f<\/p>\n
    \u6765\u6e90\uff1a\u4eac\u4e1c\u4e91\u5f00\u53d1\u8005\u793e\u533a \u8f6c\u8f7d\u8bf7\u6ce8\u660e\u6765\u6e90<\/p>\n<\/blockquote>\n
    https:\/\/segmentfault.com\/a\/1190000044138254<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
    \u80cc\u666f \u6bcf\u4e00\u5e74\u90fd\u8fdb\u884c\u5927\u4fc3\u524d\u538b\u6d4b\uff0c\u6bcf\u4e00\u6b21\u90fd\u9700\u8981\u518d\u6b21\u5173\u6ce8\u5230\u4e00\u4e9b\u57fa\u7840\u8d44\u6e90\u7684\u4f7f\u7528\u95ee\u9898\uff0c\u8ba2\u5355\u4e2d\u5fc3\u8fd9\u8fb9\u6570\u636e\u5e93\u6bd4\u8f83\u591a\uff0c\u6700\u8fd1\u9891\u7e41 […]<\/p>\n","protected":false},"author":1,"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-10008134","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\/10008134","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10008134"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10008134\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10008134"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10008134"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10008134"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}