{"id":650,"date":"2023-08-01T00:15:06","date_gmt":"2023-07-31T16:15:06","guid":{"rendered":"https:\/\/twocups.cn\/?p=650"},"modified":"2023-08-01T00:22:15","modified_gmt":"2023-07-31T16:22:15","slug":"53","status":"publish","type":"post","link":"https:\/\/twocups.cn\/index.php\/2023\/08\/01\/53\/","title":{"rendered":"\u63a2\u7d22\u65e5\u5fd7\u89c4\u7ea6"},"content":{"rendered":"\n

\"\"\u7248\u6743\u58f0\u660e\uff1a\u672c\u6587\u4e3a\u535a\u4e3b\u539f\u521b\u6587\u7ae0\uff0c\u8f6c\u8f7d\u8bf7\u6ce8\u660e\u51fa\u5904\uff1ahttps:\/\/twocups.cn\/index.php\/2023\/08\/01\/53\/<\/a><\/p>\n\n\n\n

\u4e00\u3001\u65e5\u5fd7\u89c4\u7ea6\u7684\u597d\u5904<\/h1>\n\n\n\n
\"\"<\/figure><\/div>\n\n\n\n

\u4e3a\u4ec0\u4e48\u8981\u6709\u65e5\u5fd7\u89c4\u7ea6\u5462\uff1f<\/p>\n\n\n\n

  • \u65e5\u5fd7\u4f5c\u4e3a\u6700\u5178\u578b\u7684\u57fa\u7840\u8bbe\u65bd\uff0c\u904d\u5e03\u7740\u6240\u6709\u7684\u5e94\u7528\u3002\u5b83\u4f1a\u76f4\u63a5\u5f71\u54cd\u6211\u4eec\u7684\u5e94\u7528\u8d44\u6e90\u4f7f\u7528\u60c5\u51b5\u548c\u5e94\u7528\u6027\u80fd\uff0c\u4ece\u800c\u5f71\u54cd\u7528\u6237\u4f7f\u7528\u4f53\u9a8c\u3002<\/li>
  • \u65e5\u5fd7\u548c\u76d1\u63a7\u544a\u8b66\u7ed1\u5b9a\u540e\uff0c\u53ef\u4ee5\u8fbe\u5230\u66f4\u7ec6\u7c92\u5ea6\u7684\u76d1\u63a7\uff0c\u5728\u4e3b\u529b\u76d1\u63a7\u544a\u8b66\u524d\u63d0\u524d\u77e5\u6653\u7ebf\u4e0a\u95ee\u9898\u3002\u6709\u597d\u7684\u65e5\u5fd7\u89c4\u7ea6\uff0c\u53ef\u4ee5\u907f\u514d\u6bcf\u6b21\u590d\u76d8Action\u4e2d\u518d\u51fa\u73b0\u5b8c\u5584\u76d1\u63a7\u8fd9\u4e00\u63aa\u65bd\u3002<\/li>
  • \u6bcf\u4e00\u6b21\u7684\u7528\u6237\u8bf7\u6c42\u5bf9\u6211\u4eec\u6765\u8bf4\u90fd\u662f\u6781\u5176\u73cd\u8d35\u7684\u7528\u6237\u53cd\u9988\u4fe1\u606f\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u89e3\u6790\u65e5\u5fd7\u6765\u5206\u6790\u7528\u6237\u559c\u597d\uff0c\u4ece\u800c\u8c03\u6574\u6211\u4eec\u7684\u6218\u7565\u3002\u800c\u597d\u7684\u65e5\u5fd7\u89c4\u7ea6\u53ef\u4ee5\u8ba9\u7528\u6237\u4fe1\u606f\u7684\u89e3\u6790\u66f4\u52a0\u9ad8\u6548\u3002<\/li><\/ul>\n\n\n\n

    \u4e8c\u3001\u65e5\u5fd7\u89c4\u7ea6<\/h1>\n\n\n\n

    \u963f\u91cc\u5df4\u5df4\u65e5\u5fd7\u89c4\u7ea6\u6458\u8981<\/h2>\n\n\n\n

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    \u963f\u91cc\u65e5\u5fd7\u89c4\u7ea65\u3010\u5f3a\u5236\u3011<\/h3>\n\n\n\n

    \u5728\u65e5\u5fd7\u8f93\u51fa\u65f6\uff0c\u5b57\u7b26\u4e32\u53d8\u91cf\u4e4b\u95f4\u7684\u62fc\u63a5\u4f7f\u7528\u5360\u4f4d\u7b26\u7684\u65b9\u5f0f\u3002<\/p>\n\n\n\n

    \u8bf4\u660e\uff1a\u56e0\u4e3aString\u5b57\u7b26\u4e32\u7684\u62fc\u63a5\u4f1a\u4f7f\u7528StringBuilder\u7684append()\u65b9\u5f0f\uff0c\u6709\u4e00\u5b9a\u7684\u6027\u80fd\u635f\u8017\u3002\u4f7f\u7528\u5360\u4f4d\u7b26\u4ec5\u662f\u66ff\u6362\u52a8\u4f5c\uff0c\u53ef\u4ee5\u6709\u6548\u63d0\u5347\u6027\u80fd\u3002 <\/p>\n\n\n\n

    \u6b63\u786e\u4f8b\u5b50\uff1a<\/p>\n\n\n\n

    logger.debug(\"Processing trade with id: {} and symbol: {}\", id, symbol);<\/pre>\n\n\n\n
    \u963f\u91cc\u65e5\u5fd7\u89c4\u7ea66\u3010\u5f3a\u5236\u3011<\/h3>\n\n\n\n
    \u5bf9\u4e8etrace\/debug\/info\u7ea7\u522b\u7684\u65e5\u5fd7\u8f93\u51fa\uff0c\u5fc5\u987b\u8fdb\u884c\u65e5\u5fd7\u7ea7\u522b\u7684\u5f00\u5173\u5224\u65ad\u3002<\/p>\n\n\n\n
    \u8bf4\u660e\uff1a\u867d\u7136\u5728debug(\u53c2\u6570)\u7684\u65b9\u6cd5\u4f53\u5185\u7b2c\u4e00\u884c\u4ee3\u7801isDisabled(Level.DEBUG_INT)\u4e3a\u771f\u65f6\uff08Slf4j\u7684\u5e38\u89c1\u5b9e\u73b0Log4j\u548cLogback\uff09\uff0c\u5c31\u76f4\u63a5return\uff0c\u4f46\u662f\u53c2\u6570\u53ef\u80fd\u4f1a\u8fdb\u884c\u5b57\u7b26\u4e32\u62fc\u63a5\u8fd0\u7b97\u3002\u6b64\u5916\uff0c\u5982\u679cdebug(getName())\u8fd9\u79cd\u53c2\u6570\u5185\u6709getName()\u65b9\u6cd5\u8c03\u7528\uff0c\u65e0\u8c13\u6d6a\u8d39\u65b9\u6cd5\u8c03\u7528\u7684\u5f00\u9500\u3002 <\/p>\n\n\n\n
    \u6b63\u786e\u4f8b\u5b50\uff1a<\/p>\n\n\n\n
    \/\/ \u5982\u679c\u5224\u65ad\u4e3a\u771f\uff0c\u90a3\u4e48\u53ef\u4ee5\u8f93\u51fatrace\u548cdebug\u7ea7\u522b\u7684\u65e5\u5fd7\nif (logger.isDebugEnabled()) { \n    logger.debug(\"Current ID is: {} and name is: {}\", id, getName()); \n}<\/pre>\n\n\n\n
    \u963f\u91cc\u65e5\u5fd7\u89c4\u7ea69\u3010\u5f3a\u5236\u3011<\/h3>\n\n\n\n
    \u751f\u4ea7\u73af\u5883\u7981\u6b62\u76f4\u63a5\u4f7f\u7528System.out \u6216System.err \u8f93\u51fa\u65e5\u5fd7\u6216\u4f7f\u7528e.printStackTrace()\u6253\u5370\u5f02\u5e38\u5806\u6808\u3002<\/p>\n\n\n\n
    \u8bf4\u660e\uff1a\u6807\u51c6\u65e5\u5fd7\u8f93\u51fa\u4e0e\u6807\u51c6\u9519\u8bef\u8f93\u51fa\u6587\u4ef6\u6bcf\u6b21Jboss\u91cd\u542f\u65f6\u624d\u6eda\u52a8\uff0c\u5982\u679c\u5927\u91cf\u8f93\u51fa\u9001\u5f80\u8fd9\u4e24\u4e2a\u6587\u4ef6\uff0c\u5bb9\u6613\u9020\u6210\u6587\u4ef6\u5927\u5c0f\u8d85\u8fc7\u64cd\u4f5c\u7cfb\u7edf\u5927\u5c0f\u9650\u5236\u3002<\/p>\n\n\n\n
    \u963f\u91cc\u65e5\u5fd7\u89c4\u7ea610\u3010\u5f3a\u5236\u3011<\/h3>\n\n\n\n
    \u5f02\u5e38\u4fe1\u606f\u5e94\u8be5\u5305\u62ec\u4e24\u7c7b\u4fe1\u606f\uff1a\u6848\u53d1\u73b0\u573a\u4fe1\u606f\u548c\u5f02\u5e38\u5806\u6808\u4fe1\u606f\u3002\u5982\u679c\u4e0d\u5904\u7406\uff0c\u90a3\u4e48\u5f80\u4e0a\u629b\u3002<\/p>\n\n\n\n
    \u6b63\u786e\u4f8b\u5b50\uff1alogger.error(\u201cinputParams:{} and errorMessage:{}\u201d, \u5404\u7c7b\u53c2\u6570\u6216\u8005\u5bf9\u8c61toString(), e.getMessage(), e); \"image.png\"<\/p>\n\n\n\n
    \u963f\u91cc\u65e5\u5fd7\u89c4\u7ea611\u3010\u5f3a\u5236\u3011<\/h3>\n\n\n\n
    \u65e5\u5fd7\u6253\u5370\u65f6\u7981\u6b62\u76f4\u63a5\u7528JSON\u5de5\u5177\u5c06\u5bf9\u8c61\u8f6c\u6362\u6210String\u3002<\/p>\n\n\n\n
    \u8bf4\u660e\uff1a\u5982\u679c\u5bf9\u8c61\u91cc\u67d0\u4e9bget\u65b9\u6cd5\u4e2d\u76f4\u63a5\u629b\u51fa\u5f02\u5e38\uff0c\u5219JSON\u5de5\u5177\u8c03\u7528\u5176get\u65b9\u6cd5\u65f6\u88ab\u8feb\u4e2d\u65ad\u800c\u5f71\u54cd\u6b63\u5e38\u4e1a\u52a1\u6d41\u7a0b\u7684\u6267\u884c\u3002<\/p>\n\n\n\n
    \u6b63\u786e\u4f8b\u5b50\uff1a\u6253\u5370\u65e5\u5fd7\u65f6\u4ec5\u6253\u5370\u51fa\u4e1a\u52a1\u76f8\u5173\u5c5e\u6027\u503c\u6216\u8005\u8c03\u7528\u5176\u5bf9\u8c61\u7684toString()\u65b9\u6cd5\u3002<\/p>\n\n\n\n
    \u963f\u91cc\u65e5\u5fd7\u89c4\u7ea613\u3010\u63a8\u8350\u3011<\/h3>\n\n\n\n
    \u8c28\u614e\u5730\u8bb0\u5f55\u65e5\u5fd7\u3002\u751f\u4ea7\u73af\u5883\u7981\u6b62\u8f93\u51fadebug\u65e5\u5fd7\uff1b\u6709\u9009\u62e9\u5730\u8f93\u51fainfo\u65e5\u5fd7\uff1b\u5982\u679c\u4f7f\u7528warn\u6765\u8bb0\u5f55\u521a\u4e0a\u7ebf\u65f6\u7684\u4e1a\u52a1\u884c\u4e3a\u4fe1\u606f\uff0c\u4e00\u5b9a\u8981\u6ce8\u610f\u65e5\u5fd7\u8f93\u51fa\u91cf\u7684\u95ee\u9898\uff0c\u907f\u514d\u628a\u670d\u52a1\u5668\u78c1\u76d8\u6491\u7206\uff0c\u5e76\u8bb0\u5f97\u53ca\u65f6\u5220\u9664\u8fd9\u4e9b\u89c2\u5bdf\u65e5\u5fd7\u3002<\/p>\n\n\n\n
    \u8bf4\u660e\uff1a\u5927\u91cf\u5730\u8f93\u51fa\u65e0\u6548\u65e5\u5fd7\uff0c\u4e0d\u5229\u4e8e\u7cfb\u7edf\u6027\u80fd\u63d0\u5347\uff0c\u4e5f\u4e0d\u5229\u4e8e\u5feb\u901f\u5b9a\u4f4d\u9519\u8bef\u70b9\u3002\u8bb0\u5f55\u65e5\u5fd7\u65f6\u8bf7\u601d\u8003\uff1a\u8fd9\u4e9b\u65e5\u5fd7\u771f\u7684\u6709\u4eba\u770b\u5417\uff1f\u770b\u5230\u8fd9\u6761\u65e5\u5fd7\u4f60\u80fd\u505a\u4ec0\u4e48\uff1f\u80fd\u4e0d\u80fd\u7ed9\u95ee\u9898\u6392\u67e5\u5e26\u6765\u597d\u5904\uff1f<\/p>\n\n\n\n
    \u5efa\u8bae\u7684\u65e5\u5fd7\u89c4\u7ea6<\/h2>\n\n\n\n
    \u5404\u4f4d\u5728\u9075\u5faa\u5404\u81ea\u516c\u53f8\u7684\u516c\u5171\u65e5\u5fd7\u89c4\u7ea6\u7684\u60c5\u51b5\u4e0b\uff0c\u6bcf\u4e2a\u56e2\u961f\u8fd8\u9700\u8981\u6709\u9488\u5bf9\u5404\u81ea\u56e2\u961f\/\u5e94\u7528\u7684\u4e1a\u52a1\/\u5ba1\u8ba1\/\u76d1\u63a7\u65e5\u5fd7\u89c4\u7ea6\u3002\u6211\u5728\u8fd9\u91cc\u63d0\u4e00\u4e9b\u65e5\u5fd7\u89c4\u7ea6\u7684\u5efa\u8bae\uff0c\u5e0c\u671b\u80fd\u7ed9\u5927\u5bb6\u4e00\u4e9b\u53c2\u8003\u3002<\/p>\n\n\n\n
    1.\u3010\u5f3a\u5236\u3011<\/mark>\u65e5\u5fd7\u8bb0\u5f55\u672c\u8eab\u4e0d\u5141\u8bb8\u5931\u8d25<\/h3>\n\n\n\n
    \u65e5\u5fd7\u8bb0\u5f55\u7684\u5931\u8d25\u4f1a\u963b\u65ad\u6d41\u7a0b\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u4e1a\u52a1\u903b\u8f91\u6539\u53d8\u3002\u6211\u7ed9\u4e00\u4e2a\u7ecf\u5178\u7684\u4f8b\u5b50\u3002<\/p>\n\n\n\n
    \/\/ \u524d\u7f6e\u4e1a\u52a1\u903b\u8f91
    logger.info(\"The itemId of the card is {}\", card.getItemId());
    \/\/ \u540e\u7f6e\u4e1a\u52a1\u903b\u8f91<\/pre>\n\n\n\n
    \u5982\u679ccard\u672c\u8eab\u4e3a\u7a7a\uff0c\u90a3\u4e48\u540e\u7eed\u7684\u4e1a\u52a1\u903b\u8f91\u90fd\u4e0d\u4f1a\u6267\u884c\u4e86\u3002<\/p>\n\n\n\n
    2.\u3010\u5f3a\u5236\u3011<\/mark>\u5bf9\u4e8etrace\/debug\/info\u7ea7\u522b\u7684\u65e5\u5fd7\u8f93\u51fa\uff0c\u5fc5\u987b\u8fdb\u884c\u65e5\u5fd7\u7ea7\u522b\u7684\u5f00\u5173\u5224\u65ad\u3002<\/h3>\n\n\n\n
    \u4e00\u822c\u7684trace\u548cdebug\u65e5\u5fd7\u8bb0\u5f55\u65b9\u6cd5\u5185\u90e8\u90fd\u518d\u8fdb\u884c\u4e00\u6b21\u65e5\u5fd7\u7ea7\u522b\u7684\u5224\u65ad\uff0c\u4f46\u662f\u6211\u4eec\u4ecd\u7136\u5fc5\u987b\u8981\u5728\u5916\u90e8\u8fdb\u884c\u65e5\u5fd7\u7ea7\u522b\u7684\u5f00\u5173\u5224\u65ad\u3002\u6211\u4e3e\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\u3002<\/p>\n\n\n\n
    logger.debug(\"The context is {}\", JSON.toJSONString(largeData));<\/pre>\n\n\n\n
    \u5982\u679c\u6ca1\u6709\u524d\u7f6e\u7684\u5f00\u5173\u5224\u65ad\uff0c\u90a3\u4e48\u8fd9\u4e2a\u8d85\u5927\u5bf9\u8c61\u7684JSON\u5e8f\u5217\u5316\u5c31\u4e00\u5b9a\u4f1a\u88ab\u6267\u884c\u3002\u800c\u5927\u5bf9\u8c61\u7684JSON\u5e8f\u5217\u5316\u662f\u975e\u5e38\u6d88\u8017CPU\u7684\uff0c\u800cCPU\u6c34\u4f4d\u7684\u4e0a\u5347\u53c8\u53ef\u80fd\u4f1a\u5e26\u6765\u4e00\u7cfb\u4f8b\u7684\u95ee\u9898\uff0c\u4f8b\u5982RT\u7684\u4e0a\u5347\u3002<\/p>\n\n\n\n
    \u6b63\u786e\u4f8b\u5b50\uff1a<\/p>\n\n\n\n
    if (logger.isTraceEnable) {\n    logger.trace(\"This is a {} log\", \"trace\");\n}\n\u200b\nif (logger.isDebugEnable) {\n    logger.debug(\"This is a {} log\", \"debug\");\n}\n\u200b\nif (logger.isInfoEnable) {\n    logger.info(\"This is an {} log\", \"info\");\n}<\/pre>\n\n\n\n
    3.\u3010\u5f3a\u5236\u3011<\/mark>\u65e5\u5fd7\u6253\u5370\u65f6\u7981\u6b62\u76f4\u63a5\u7528JSON\u5de5\u5177\u5c06\u5bf9\u8c61\u8f6c\u6362\u6210String<\/h3>\n\n\n\n
    \u6211\u77e5\u9053\uff0c\u76f4\u63a5\u8bb0\u5f55JSON\u5e8f\u5217\u5316\u7ed3\u679c\u975e\u5e38\u65b9\u4fbf\uff0c\u6253\u5370\u51fa\u6765\u7684\u65e5\u5fd7\u4e5f\u76f4\u63a5\u662fJSON\u7ed3\u6784\uff0c\u65e0\u8bba\u662f\u89e3\u6790\u8fd8\u662f\u76f4\u63a5\u770b\u90fd\u975e\u5e38\u4fbf\u6377\u3002<\/p>\n\n\n\n
    logger.debug(\"The data are: {}\",  JSON.toJSONString(data));<\/pre>\n\n\n\n
    \u4f46\u662f\uff0c\u4f1a\u6709\u6027\u80fd\u95ee\u9898\uff0cCPU\u6c34\u4f4d\u3001\u5185\u5b58\u3001RT\u7b49\u7b49\u90fd\u4f1a\u53d7\u5230\u5f71\u54cd\u3002\u5e76\u4e14\uff0c\u963f\u91cc\u5df4\u5df4\u65e5\u5fd7\u89c4\u7ea6\u7b2c11\u6761\uff1a\u3010\u5f3a\u5236\u3011\u65e5\u5fd7\u6253\u5370\u65f6\u7981\u6b62\u76f4\u63a5\u7528JSON\u5de5\u5177\u5c06\u5bf9\u8c61\u8f6c\u6362\u6210String\u3002<\/p>\n\n\n\n
    \u6211\u7ed9\u5927\u5bb6\u63d0\u4f9b\u4e24\u79cd\u5e73\u66ff\u7684\u65b9\u6cd5\uff1a<\/p>\n\n\n\n
    1. \u91cd\u5199\u51c6\u5907\u5e8f\u5217\u5316\u5bf9\u8c61\u7684toString\u65b9\u6cd5\uff0c\u7136\u540e\u7528\u8be5\u5bf9\u8c61\u7684toString\u65b9\u6cd5\u4f5c\u4e3a\u65e5\u5fd7\u8bb0\u5f55\u3002<\/li>
    2. \u91cd\u5199\u65e5\u5fd7\u8bb0\u5f55\u65b9\u6cd5\uff0c\u901a\u8fc7Lambda\u8868\u8fbe\u5f0f\u5c06JSON\u5e8f\u5217\u5316\u53d8\u6210\u5f02\u6b65\u64cd\u4f5c\u3002\u867d\u7136\u5bf9CPU\u6c34\u4f4d\u7684\u5f71\u54cd\u6ca1\u6709\u4f18\u5316\uff0c\u4f46\u662f\u5bf9RT\u7684\u5f71\u54cd\u4f1a\u964d\u4f4e\u5230\u6700\u5c0f\u3002<\/li><\/ol>\n\n\n\n
      \u518d\u7ed9\u5927\u5bb6\u907f\u4e24\u4e2a\u5751\uff1a<\/p>\n\n\n\n
      1. JSON.toJSONString\u8fd9\u4e2a\u65b9\u6cd5\u7528\u8d77\u6765\u5f88\u723d\uff0c\u4f46\u662f\u4e0d\u662f\u6240\u6709\u7684\u5bf9\u8c61\u90fd\u53ef\u4ee5\u8fdb\u884cJSON\u5e8f\u5217\u5316\u7684\u3002\u5982\u679c\u5bf9\u8c61\u65e0\u6cd5\u8fdb\u884cJSON\u5e8f\u5217\u5316\uff0c\u90a3\u4e48\u5c31\u4f1a\u629b\u51fa\u5f02\u5e38\uff0c\u4ece\u800c\u8fdd\u53cd\u7b2c\u4e00\u6761\u65e5\u5fd7\u89c4\u7ea6\u3010\u65e5\u5fd7\u8bb0\u5f55\u672c\u8eab\u4e0d\u5141\u8bb8\u5931\u8d25\u3011\u3002\u6240\u4ee5\u5728\u4f7f\u7528JSON\u5e8f\u5217\u5316\u65b9\u6cd5\u65f6\u5efa\u8bae\u52a0\u4e0aSerializerFeature.IgnoreErrorGetter\uff0c\u8fd9\u4e2a\u53c2\u6570\u7684\u542b\u4e49\u662f\u5728\u9047\u5230\u5e8f\u5217\u5316\u5bf9\u8c61\u4e2d\u65e0\u6cd5\u5e8f\u5217\u5316\u7684\u5b57\u6bb5\u5219\u81ea\u52a8\u8df3\u8fc7\u3002<\/li><\/ol>\n\n\n\n
        String objStr = JSON.toJSONString(obj, SerializerFeature.IgnoreErrorGetter);<\/pre>\n\n\n\n
        1. \u6b63\u5e38\u6765\u8bf4\u5728\u52a0\u4e0aSerializerFeature.IgnoreErrorGetter\u53c2\u6570\u540e\uff0cJSON\u5e8f\u5217\u5316\u5c31\u4e0d\u4f1a\u5931\u8d25\u4e86\u3002\u4f46\u662f\u6781\u5c11\u60c5\u51b5\u4e0b\u5bf9\u4e8e\u67d0\u4e9b\u9759\u6001\u5185\u90e8\u7c7b\u5bf9\u8c61\uff0c\u5373\u4f7f\u52a0\u4e86SerializerFeature.IgnoreErrorGetter\u53c2\u6570\u8fd8\u662f\u4f1a\u5931\u8d25\u3002\u6240\u4ee5\u5efa\u8bae\u5728\u5e8f\u5217\u5316\u7684\u540c\u65f6\u6700\u597d\u8981\u6709fallback\u3002<\/li><\/ol>\n\n\n\n
          String objStr;\ntry {\n    objStr = JSON.toJSONString(obj, SerializerFeature.IgnoreErrorGetter);}\n} catch (Exception e) {\n    if (obj != null) {\n        objStr = obj.toString();\n    }\n}<\/pre>\n\n\n\n
          4.\u3010\u5f3a\u5236\u3011<\/mark>\u62fc\u63a5\u65e5\u5fd7\u65f6\u4f7f\u7528\u5360\u4f4d\u7b26<\/h3>\n\n\n\n
          \u62fc\u63a5\u5b57\u7b26\u4e32\u4f1a\u4f7f\u7528StringBuilder\u7684append()\u65b9\u5f0f\uff0c\u4f1a\u6709\u6027\u80fd\u635f\u8017\u3002\u4f46\u4f7f\u7528\u5360\u4f4d\u7b26\u662f\u66ff\u6362\u5de5\u4f5c\uff0c\u53ef\u4ee5\u63d0\u5347\u6027\u80fd\u3002<\/p>\n\n\n\n
          \u9519\u8bef\u4f8b\u5b50\uff1a<\/p>\n\n\n\n
          logger.info(\"The \" + nameKey + \" is \" + nameValue);<\/pre>\n\n\n\n
          \u6b63\u786e\u4f8b\u5b50\uff1a<\/p>\n\n\n\n
          logger.info(\"The {} is {}\", nameKey, nameValue);<\/pre>\n\n\n\n
          5.\u3010\u5f3a\u5236\u3011<\/mark>\u7981\u6b62\u76f4\u63a5\u4f7f\u7528Log4J\u548cLogback\u7b49\u65e5\u5fd7\u7cfb\u7edf\u7684API<\/h3>\n\n\n\n
          \u8fd9\u70b9\u5728\u963f\u91cc\u65e5\u5fd7\u89c4\u7ea6\u4e2d\u4e5f\u6709\u63d0\u5230\uff0c\u5e94\u8be5\u4f7f\u7528SLF4J\u7b49\u65e5\u5fd7\u6846\u67b6\u7684API\uff0c\u800c\u4e0d\u8981\u4f7f\u7528\u5177\u4f53\u65e5\u5fd7\u5b9e\u73b0\u7684API\u3002 <\/p>\n\n\n\n
          6.\u3010\u5f3a\u5236\u3011<\/mark>\u4f7f\u7528\u5f02\u6b65\u8f93\u51fa\u65e5\u5fd7\uff0c\u800c\u4e0d\u4f7f\u7528\u540c\u6b65\u8f93\u51fa\u65e5\u5fd7<\/h3>\n\n\n\n
          \u540c\u6b65\u8f93\u51fa\u65e5\u5fd7\u4f1a\u660e\u663e\u5f71\u54cdRT\uff0c\u975e\u5e38\u5f71\u54cd\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n\n\n\n
          7.\u3010\u5f3a\u5236\u3011<\/mark>\u6253\u5370\u9519\u8bef\u65e5\u5fd7\u65f6\uff0c\u9700\u8981\u8bb0\u5f55\u5168\u90e8\u7684\u9519\u8bef\u4fe1\u606f<\/h3>\n\n\n\n
          \u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u90fd\u4f1a\u5728\u6355\u83b7\u5f02\u5e38\u7684\u540c\u65f6\uff0c\u5c06\u9519\u8bef\u4fe1\u606f\u901a\u8fc7\u65e5\u5fd7\u8bb0\u5f55\u4e0b\u6765\uff0c\u65b9\u4fbf\u540e\u7eed\u6392\u67e5\u95ee\u9898\u3002\u4f46\u4e0d\u5b8c\u6574\u7684\u9519\u8bef\u4fe1\u606f\u7684\u8bb0\u5f55\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6211\u4eec\u9519\u5931\u5173\u952e\u4fe1\u606f\u3002<\/p>\n\n\n\n
          \/\/ \u4e0d\u63a8\u8350\u7684\u65e5\u5fd7\u8bb0\u5f55\u65b9\u5f0f\nlogger.error(\"This solution failed.\");\nlogger.error(\"XXX error: {}\", e.getMessage());\n\n\/\/ \u63a8\u8350\u7684\u65e5\u5fd7\u8bb0\u5f55\u65b9\u5f0f\nlogger.error(\"XXX error: {}\", e);<\/pre>\n\n\n\n
          \u6b63\u5e38\u7684\u65e5\u5fd7\u6846\u67b6\u7684error\u65b9\u6cd5\u90fd\u4f1a\u4e13\u95e8\u63d0\u4f9bThrowable\u53d8\u91cf\u4f5c\u4e3a\u5165\u53c2\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u653e\u5fc3\u5927\u80c6\u5730\u76f4\u63a5\u5c06\u5f02\u5e38\u653e\u5165\u3002<\/p>\n\n\n\n
          8.\u3010\u5f3a\u5236\u3011<\/mark>\u751f\u4ea7\u73af\u5883\u7981\u6b62\u76f4\u63a5\u4f7f\u7528System.out\u6216System.err\u8f93\u51fa\u65e5\u5fd7<\/h3>\n\n\n\n
          \u6807\u51c6\u65e5\u5fd7\u8f93\u51fa\u4e0e\u6807\u51c6\u9519\u8bef\u8f93\u51fa\u6587\u4ef6\u6bcf\u6b21\u5e94\u7528\u5bb9\u5668\u91cd\u542f\u65f6\u624d\u6eda\u52a8\uff0c\u6587\u4ef6\u53ef\u80fd\u8d85\u8fc7\u64cd\u4f5c\u7cfb\u7edf\u5927\u5c0f\u9650\u5236\u3002<\/p>\n\n\n\n
          9.\u3010\u5f3a\u5236\u3011<\/mark>\u5f53\u51fa\u73b0\u975e\u9884\u671f\u9519\u8bef\u6216\u8005\u7a0b\u5e8f\u65e0\u6cd5\u5904\u7406\u7684\u9519\u8bef\uff0c\u5fc5\u987b\u6253\u5370ERROR\u65e5\u5fd7<\/h3>\n\n\n\n
          \u65b9\u4fbf\u6392\u67e5\u95ee\u9898\u7684\u65f6\u5019\u80fd\u591f\u5b9a\u4f4d\u5230\u5177\u4f53\u7684\u539f\u56e0\u3002<\/p>\n\n\n\n
          10.\u3010\u5f3a\u5236\u3011<\/mark>\u7981\u6b62\u6253\u5370\u65e0\u610f\u4e49\/\u91cd\u590d\u7684\u65e5\u5fd7<\/h3>\n\n\n\n
          \u6709\u4e9b\u65e5\u5fd7\u6ca1\u4ec0\u4e48\u610f\u4e49\uff0c\u90a3\u5c31\u628a\u5b83\u6539\u6210\u6ce8\u91ca\uff0c\u800c\u4e0d\u662f\u65e5\u5fd7\u3002<\/p>\n\n\n\n
          \u65e5\u5fd7\u7684\u8bb0\u5f55\u662f\u4e3a\u4e86\u89e3\u6790\u548c\u6392\u67e5\u95ee\u9898\uff0c\u6240\u4ee5\u8868\u8fbe\u540c\u6837\u4fe1\u606f\u7684\u65e5\u5fd7\u4e0d\u8981\u91cd\u590d\u6253\u5370\u3002<\/p>\n\n\n\n
          11.\u3010\u5f3a\u5236\u3011<\/mark>\u5fc5\u987b\u9650\u5236\u65e5\u5fd7\u7684\u957f\u5ea6<\/h3>\n\n\n\n
          \u5982\u679c\u4f60\u5df2\u7ecf\u9884\u4f30\u5230\u4f60\u8981\u6253\u5370\u7684\u65e5\u5fd7\u8d85\u7ea7\u957f\uff0c\u90a3\u4e48\u4f60\u53ef\u4ee5\u60f3\u60f3\u8fd9\u4e9b\u65e5\u5fd7\u5185\u5bb9\u5168\u90fd\u662f\u5fc5\u8981\u7684\u5417\uff1f<\/p>\n\n\n\n
          \u5982\u679c\u4f60\u5728\u8bbe\u8ba1\u81ea\u5df1\u7684\u65e5\u5fd7\u7ec4\u4ef6\uff0c\u90a3\u4e48\u4f60\u5fc5\u987b\u8981\u5bf9\u7528\u6237\u8bb0\u5f55\u7684\u65e5\u5fd7\u957f\u5ea6\u52a0\u4ee5\u9650\u5236\uff0c\u8bbe\u7f6e\u5408\u7406\u7684\u622a\u65ad\u957f\u5ea6\u3002<\/p>\n\n\n\n
          12.\u3010\u5f3a\u5236\u3011<\/mark>\u91cd\u8981\u5e94\u7528\u7684\u65e5\u5fd7\u683c\u5f0f\u5e94\u8be5\u5c3d\u91cf\u76f8\u540c<\/h3>\n\n\n\n
          \u91cd\u8981\u5e94\u7528\u7684\u76d1\u63a7\u66f4\u591a\u66f4\u7ec6\uff0c\u7edf\u4e00\u7684\u65e5\u5fd7\u683c\u5f0f\u65e0\u8bba\u662f\u5728\u76d1\u63a7\u544a\u8b66\u914d\u7f6e\uff0c\u8fd8\u662f\u5728\u65e5\u5fd7\u89e3\u6790\u4e0a\u90fd\u662f\u6781\u5176\u6709\u5229\u7684\u3002<\/p>\n\n\n\n
          13.\u3010\u5f3a\u5236\u3011<\/mark>ERROR\u65e5\u5fd7\u63a5\u5165\u76d1\u63a7\u548c\u544a\u8b66<\/h3>\n\n\n\n
          \u5927\u91cfERROR\u65e5\u5fd7\u4ea7\u751f\u65f6\uff0c\u5c31\u7b97\u4e3b\u529b\u76d1\u63a7\u6ca1\u6709\u544a\u8b66\uff0c\u90a3\u4e5f\u8bf4\u660e\u7ebf\u4e0a\u51fa\u73b0\u4e86\u6545\u969c\uff0c\u9700\u8981\u89e3\u51b3\u3002\u6240\u4ee5\u5f3a\u70c8\u5efa\u8baeERROR\u65e5\u5fd7\u63a5\u5165\u76d1\u63a7\u548c\u544a\u8b66\u3002<\/p>\n\n\n\n
          \u540c\u65f6\uff0c\u8bf7\u8c28\u614e\u8bb0\u5f55ERROR\u65e5\u5fd7\u3002<\/p>\n\n\n\n
          14.\u3010\u63a8\u8350\u3011<\/mark>\u5c3d\u91cf\u907f\u514d\u5728\u5faa\u73af\u4e2d\u6253\u65e5\u5fd7<\/h3>\n\n\n\n
          \u5bf9\u4e8eRT\u6765\u8bf4\uff0c\u65e5\u5fd7\u6570\u91cf\u7684\u5f71\u54cd\u662f\u8fdc\u8fdc\u5927\u4e8e\u5927\u5bf9\u8c61\u65e5\u5fd7\u8bb0\u5f55\u7684\u5f71\u54cd\u7684\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u4e00\u6761\u65e5\u5fd7\u8bb0\u5f55\u65b9\u6cd5\u4f1a\u4f7f\u7528500\u7eb3\u79d2\uff0c\u800c\u4e00\u4e2a\u5927\u5bf9\u8c61\u53ef\u80fd\u4e5f\u5c312000\u7eb3\u79d2\u3002<\/p>\n\n\n\n
          \u5c31\u7b97\u6211\u4eec\u53ea\u5728\u4e00\u4e2a\u5faa\u73af\u4e2d\u6253\u5370\u4e86\u51e0\u6761\u65e5\u5fd7\uff0c\u4f46\u662f\u8fd9\u4e2a\u5faa\u73af\u6267\u884c\u4e86\u51e0\u767e\u6b21\u3002\u90a3\u4e48\u5c31\u4f1a\u5bf9\u5e94\u7528RT\u4ea7\u751f\u6beb\u79d2\u7ea7\u522b\u7684\u5f71\u54cd\uff0c\u6709\u53ef\u80fd\u5bfc\u81f4\u5e94\u7528\u8d85\u65f6\u3002\u5bf9\u4e8e\u90a3\u4e9b\u4f1a\u6267\u884c\u51e0\u5343\u6b21\u7684\u5faa\u73af\uff0c\u5982\u679c\u5728\u91cc\u9762\u6253\u5370\u65e5\u5fd7\uff0c\u90a3\u4e48RT\u548c\u7528\u6237\u7684\u8840\u538b\u5c31\u4f1a\u4e00\u8d77\u4e0a\u5347\u3002<\/p>\n\n\n\n
          15.\u3010\u63a8\u8350\u3011<\/mark>\u65e5\u5fd7\u5185\u5bb9\u5c3d\u91cf\u4f7f\u7528\u82f1\u6587\uff0c\u907f\u514d\u4e71\u7801<\/h3>\n\n\n\n
          \u6709\u4e9b\u65f6\u5019\u5b58\u5728\u7ec8\u7aef\u7f16\u7801\u95ee\u9898\u5bfc\u81f4\u4e2d\u6587\u65e5\u5fd7\u51fa\u73b0\u4e71\u7801\uff0c\u6240\u4ee5\u8fd8\u662f\u5c3d\u91cf\u7528\u82f1\u6587\u8bb0\u5f55\u65e5\u5fd7\u3002\u5e76\u4e14\u963f\u91cc\u5df4\u5df4\u5f00\u53d1\u89c4\u7ea6\u89c4\u5b9a\uff0c\u56fd\u9645\u5316\u56e2\u961f\/\u5e94\u7528\u662f\u5fc5\u987b\u4f7f\u7528\u82f1\u6587\u8fdb\u884c\u65e5\u5fd7\u8bb0\u5f55\u7684\u3002<\/p>\n\n\n\n
          16.\u3010\u63a8\u8350\u3011<\/mark>\u8c28\u614e\u5730\u8bb0\u5f55\u65e5\u5fd7<\/h3>\n\n\n\n
          \u65e5\u5fd7\u8bb0\u5f55\u4e3a\u4e86\u76d1\u63a7\/\u65b9\u4fbf\u95ee\u9898\u6392\u67e5\/\u6570\u636e\u89e3\u6790\uff0c\u65e5\u5fd7\u4e0d\u662f\u6cd5\u5916\u4e4b\u5730\u3002<\/p>\n\n\n\n
          \u4e09\u3001\u65e5\u5fd7\u89c4\u7ea6\u7684\u5176\u4ed6\u65b9\u9762<\/h1>\n\n\n\n
          \u65e5\u5fd7\u89c4\u7ea6\u662f\u6bcf\u4e00\u4f4d\u5f00\u53d1\u8005\u90fd\u9700\u8981\u5b66\u4e60\u7684\u4e8b\u60c5\uff0c\u4f46\u65e5\u5fd7\u5176\u4ed6\u65b9\u9762\uff08\u4f8b\u5982\u65e5\u5fd7\u7cfb\u7edf\u7684\u843d\u5730\u3001\u65e5\u5fd7\u7684\u4f7f\u7528\uff09\u7684\u5173\u6ce8\u5ea6\u5219\u4f1a\u76f8\u5bf9\u4f4e\u4e00\u4e9b\u3002\u8fd9\u7bc7\u6587\u7ae0\u6211\u662f\u8bb2\u65e5\u5fd7\u89c4\u7ea6\u7684\uff0c\u6240\u4ee5\u6211\u8fd8\u662f\u4f1a\u56f4\u7ed5\u65e5\u5fd7\u89c4\u7ea6\u7a0d\u5fae\u62d3\u5c55\u5f00\u4e00\u4e9b\u65e5\u5fd7\u76f8\u5173\u7684\u4e8b\u60c5\uff0c\u5173\u7cfb\u4e0d\u5927\u7684\u5c31\u5148\u4e0d\u63d0\u4e86\u3002<\/p>\n\n\n\n
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