\n| \n \u6027\u80fd\u635f\u8017<\/p>\n<\/td>\n | \n \u57fa\u4e8e\u7ebf\u7a0b\u6c60\u9694\u79bb，\u6027\u80fd\u635f\u8017\u8f83\u9ad8<\/p>\n<\/td>\n | \n \u57fa\u4e8e Netty \u5f02\u6b65\u5904\u7406，\u8f7b\u91cf\u7ea7，\u6027\u80fd\u635f\u8017\u6781\u4f4e<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u7ed3\u8bba：\u65b0\u9879\u76ee\u9996\u9009 Sentinel；\u65e7\u9879\u76ee\u82e5\u4f7f\u7528 Hystrix，\u5efa\u8bae\u9010\u6b65\u8fc1\u79fb\u81f3 Sentinel，\u964d\u4f4e\u7ef4\u62a4\u6210\u672c，\u63d0\u5347\u7cfb\u7edf\u7a33\u5b9a\u6027\u3002<\/p>\n \u4e8c\u3001\u5403\u900f\u6838\u5fc3\u6982\u5ff5：\u52a8\u624b\u524d\u5fc5\u61c2\u7684\u57fa\u7840<\/h3>\n\u5f88\u591a\u5f00\u53d1\u8005\u4e0a\u624b Sentinel \u540e，\u4f1a\u51fa\u73b0\u201c\u914d\u7f6e\u4e86\u89c4\u5219\u4f46\u4e0d\u751f\u6548\u201d\u201c\u7194\u65ad\u903b\u8f91\u4e0d\u7b26\u5408\u9884\u671f\u201d\u7b49\u95ee\u9898，\u6838\u5fc3\u539f\u56e0\u662f\u6ca1\u5403\u900f\u5176\u6838\u5fc3\u6982\u5ff5\u3002Sentinel \u7684\u5de5\u4f5c\u903b\u8f91\u56f4\u7ed5\u201c\u8d44\u6e90\u201d\u548c\u201c\u89c4\u5219\u201d\u5c55\u5f00，\u638c\u63e1\u4ee5\u4e0b\u51e0\u4e2a\u6982\u5ff5，\u5b9e\u64cd\u65f6\u5c31\u80fd\u5c11\u8d70\u5f2f\u8def：<\/p>\n 2.1 \u6838\u5fc3\u672f\u8bed\u89e3\u6790<\/h4>\n\n- \n
\u8d44\u6e90（Resource）：Sentinel \u4fdd\u62a4\u7684\u6838\u5fc3\u5bf9\u8c61，\u4e5f\u662f\u9650\u6d41\u3001\u7194\u65ad\u7684\u6700\u5c0f\u7c92\u5ea6，\u53ef\u7406\u89e3\u4e3a\u201c\u9700\u8981\u88ab\u4fdd\u62a4\u7684\u4ee3\u7801\/\u63a5\u53e3\/\u670d\u52a1\u201d\u3002\u6bd4\u5982\u4e00\u4e2a\u63a5\u53e3\u65b9\u6cd5\u3001\u4e00\u4e2a URL\u3001\u4e00\u4e2a Dubbo \u670d\u52a1\u540d，\u90fd\u53ef\u4ee5\u4f5c\u4e3a\u8d44\u6e90\u3002\u901a\u5e38\u901a\u8fc7\u6ce8\u89e3 @SentinelResource \u6216\u4ee3\u7801\u57cb\u70b9\u7684\u65b9\u5f0f\u5b9a\u4e49\u8d44\u6e90\u3002<\/p>\n<\/li>\n - \n
\u89c4\u5219（Rule）：\u5bf9\u8d44\u6e90\u7684\u63a7\u5236\u7b56\u7565，\u662f Sentinel \u6267\u884c\u9650\u6d41\u3001\u7194\u65ad\u7b49\u64cd\u4f5c\u7684\u4f9d\u636e\u3002\u5e38\u89c1\u7684\u89c4\u5219\u7c7b\u578b\u6709：\u6d41\u91cf\u63a7\u5236\u89c4\u5219\u3001\u7194\u65ad\u964d\u7ea7\u89c4\u5219\u3001\u70ed\u70b9\u53c2\u6570\u9650\u6d41\u89c4\u5219\u3001\u7cfb\u7edf\u4fdd\u62a4\u89c4\u5219\u3001\u9ed1\u767d\u540d\u5355\u89c4\u5219\u3002<\/p>\n<\/li>\n - \n
\u6d41\u91cf\u63a7\u5236：\u9650\u5236\u8d44\u6e90\u7684\u8bbf\u95ee\u9891\u7387（QPS）\u6216\u5e76\u53d1\u7ebf\u7a0b\u6570，\u907f\u514d\u6d41\u91cf\u8d85\u51fa\u7cfb\u7edf\u7684\u627f\u8f7d\u80fd\u529b，\u76f8\u5f53\u4e8e\u201c\u7ed9\u63a5\u53e3\u88c5\u4e00\u4e2a\u6d41\u91cf\u9600\u95e8\u201d\u3002<\/p>\n<\/li>\n - \n
\u7194\u65ad\u964d\u7ea7：\u5f53\u8d44\u6e90\u8c03\u7528\u51fa\u73b0\u5f02\u5e38（\u6162\u8c03\u7528\u6bd4\u4f8b\u8fc7\u9ad8\u3001\u5f02\u5e38\u7387\u8fc7\u9ad8\u3001\u5f02\u5e38\u6570\u8fc7\u591a）\u65f6，\u6682\u65f6\u5207\u65ad\u8be5\u8d44\u6e90\u7684\u8c03\u7528\u94fe\u8def，\u907f\u514d\u6545\u969c\u6269\u6563，\u540c\u65f6\u6267\u884c\u515c\u5e95\u903b\u8f91（\u964d\u7ea7\u65b9\u6cd5），\u76f8\u5f53\u4e8e\u201c\u7ed9\u63a5\u53e3\u88c5\u4e00\u4e2a\u4fdd\u9669\u4e1d\u201d\u3002<\/p>\n<\/li>\n - \n
\u964d\u7ea7（Degrade）：\u7194\u65ad\u89e6\u53d1\u540e\u6267\u884c\u7684\u515c\u5e95\u903b\u8f91，\u7528\u4e8e\u8fd4\u56de\u53cb\u597d\u63d0\u793a\u6216\u9ed8\u8ba4\u6570\u636e，\u907f\u514d\u76f4\u63a5\u8fd4\u56de 500 \u9519\u8bef，\u63d0\u5347\u7528\u6237\u4f53\u9a8c\u3002\u6bd4\u5982\u9650\u6d41\u65f6\u8fd4\u56de\u201c\u5f53\u524d\u7cfb\u7edf\u7e41\u5fd9，\u8bf7\u7a0d\u540e\u518d\u8bd5\u201d，\u7194\u65ad\u65f6\u8fd4\u56de\u7f13\u5b58\u6570\u636e\u3002<\/p>\n<\/li>\n - \n
\u70ed\u70b9\u53c2\u6570：\u8d44\u6e90\u4e2d\u88ab\u9ad8\u9891\u8bbf\u95ee\u7684\u53c2\u6570，\u6bd4\u5982\u7535\u5546\u5546\u54c1\u8be6\u60c5\u63a5\u53e3\u7684 \u5546\u54c1ID\u3001\u7528\u6237\u767b\u5f55\u63a5\u53e3\u7684 \u7528\u6237ID\u3002\u70ed\u70b9\u53c2\u6570\u9650\u6d41\u5c31\u662f\u5bf9\u8fd9\u4e9b\u9ad8\u9891\u53c2\u6570\u5355\u72ec\u9650\u6d41，\u5b9e\u73b0\u7cbe\u51c6\u9632\u62a4\u3002<\/p>\n<\/li>\n<\/ul>\n 2.2 \u7194\u65ad\u964d\u7ea7\u6838\u5fc3\u539f\u7406（\u72b6\u6001\u6d41\u8f6c）<\/h4>\n\u7194\u65ad\u673a\u5236\u57fa\u4e8e\u201c\u7194\u65ad\u5668\u6a21\u5f0f\u201d\u5b9e\u73b0，\u6838\u5fc3\u5206\u4e3a\u4e09\u4e2a\u72b6\u6001，\u6d41\u8f6c\u903b\u8f91\u6e05\u6670，\u7406\u89e3\u540e\u5c31\u80fd\u8f7b\u677e\u914d\u7f6e\u7194\u65ad\u89c4\u5219：<\/p>\n - \n
\u95ed\u5408\u72b6\u6001（CLOSED）：\u6b63\u5e38\u72b6\u6001，\u5141\u8bb8\u6240\u6709\u8bf7\u6c42\u8bbf\u95ee\u8d44\u6e90，\u540c\u65f6 Sentinel \u4f1a\u5b9e\u65f6\u7edf\u8ba1\u8be5\u8d44\u6e90\u7684\u8c03\u7528\u6307\u6807（\u54cd\u5e94\u65f6\u95f4\u3001\u5f02\u5e38\u7387\u3001\u5f02\u5e38\u6570）\u3002<\/p>\n<\/li>\n - \n
\u6253\u5f00\u72b6\u6001（OPEN）：\u5f53\u8c03\u7528\u6307\u6807\u8fbe\u5230\u7194\u65ad\u9608\u503c（\u5982\u6162\u8c03\u7528\u6bd4\u4f8b\u8d85\u8fc7 50%）\u65f6，\u89e6\u53d1\u7194\u65ad，\u8fdb\u5165\u6253\u5f00\u72b6\u6001\u3002\u6b64\u65f6\u5728\u6307\u5b9a\u65f6\u95f4\u5185（\u7194\u65ad\u65f6\u957f），\u4f1a\u62d2\u7edd\u6240\u6709\u8bbf\u95ee\u8be5\u8d44\u6e90\u7684\u8bf7\u6c42，\u76f4\u63a5\u6267\u884c\u964d\u7ea7\u903b\u8f91\u3002<\/p>\n<\/li>\n - \n
\u534a\u6253\u5f00\u72b6\u6001（HALF-OPEN）：\u7194\u65ad\u65f6\u957f\u5230\u671f\u540e，\u81ea\u52a8\u8fdb\u5165\u534a\u6253\u5f00\u72b6\u6001\u3002\u6b64\u65f6\u5141\u8bb8\u5c11\u91cf\u8bf7\u6c42\u5c1d\u8bd5\u8bbf\u95ee\u8d44\u6e90：\u82e5\u8fd9\u4e9b\u8bf7\u6c42\u8c03\u7528\u6210\u529f，\u5219\u6062\u590d\u4e3a\u95ed\u5408\u72b6\u6001；\u82e5\u4ecd\u6709\u5f02\u5e38，\u5219\u91cd\u56de\u6253\u5f00\u72b6\u6001，\u7ee7\u7eed\u7194\u65ad\u3002<\/p>\n<\/li>\n 2.3 \u6d41\u91cf\u63a7\u5236\u6838\u5fc3\u6a21\u5f0f<\/h4>\nSentinel \u652f\u6301\u4e09\u79cd\u6d41\u91cf\u63a7\u5236\u6a21\u5f0f，\u8986\u76d6\u4e0d\u540c\u7684\u4e1a\u52a1\u573a\u666f，\u5b9e\u64cd\u65f6\u53ef\u6839\u636e\u9700\u6c42\u9009\u62e9：<\/p>\n \n- \n
\u76f4\u63a5\u6a21\u5f0f：\u76f4\u63a5\u5bf9\u5f53\u524d\u8d44\u6e90\u8fdb\u884c\u9650\u6d41，\u662f\u6700\u5e38\u7528\u7684\u6a21\u5f0f\u3002\u6bd4\u5982\u9650\u5236\u201c\u521b\u5efa\u8ba2\u5355\u201d\u63a5\u53e3\u7684 QPS \u4e3a 100，\u5f53\u6bcf\u79d2\u8bf7\u6c42\u6570\u8d85\u8fc7 100 \u65f6，\u76f4\u63a5\u89e6\u53d1\u9650\u6d41\u3002<\/p>\n<\/li>\n - \n
\u5173\u8054\u6a21\u5f0f：\u5f53\u5173\u8054\u7684\u8d44\u6e90\u6d41\u91cf\u8fbe\u5230\u9608\u503c\u65f6，\u9650\u5236\u5f53\u524d\u8d44\u6e90\u7684\u8bbf\u95ee\u3002\u6bd4\u5982\u201c\u4e0b\u5355\u201d\u63a5\u53e3\u548c\u201c\u67e5\u8be2\u5546\u54c1\u201d\u63a5\u53e3\u5173\u8054，\u5f53\u201c\u4e0b\u5355\u201d\u63a5\u53e3\u6d41\u91cf\u8fc7\u8f7d\u65f6，\u9650\u5236\u201c\u67e5\u8be2\u5546\u54c1\u201d\u63a5\u53e3\u7684\u6d41\u91cf，\u4f18\u5148\u4fdd\u969c\u4e0b\u5355\u529f\u80fd\u3002<\/p>\n<\/li>\n - \n
\u94fe\u8def\u6a21\u5f0f：\u53ea\u9650\u5236\u67d0\u4e00\u6761\u8c03\u7528\u94fe\u8def\u7684\u6d41\u91cf，\u4e0d\u5f71\u54cd\u5176\u4ed6\u94fe\u8def\u3002\u6bd4\u5982\u201c\u7528\u6237\u670d\u52a1\u201d\u7684\u201c\u67e5\u8be2\u7528\u6237\u4fe1\u606f\u201d\u63a5\u53e3，\u53ef\u80fd\u88ab\u201c\u8ba2\u5355\u670d\u52a1\u201d\u548c\u201c\u5546\u54c1\u670d\u52a1\u201d\u8c03\u7528，\u94fe\u8def\u6a21\u5f0f\u53ef\u53ea\u9650\u5236\u201c\u8ba2\u5355\u670d\u52a1\u2192\u67e5\u8be2\u7528\u6237\u4fe1\u606f\u201d\u7684\u6d41\u91cf\u3002<\/p>\n<\/li>\n<\/ul>\n \u4e09\u3001\u5b9e\u64cd\u843d\u5730：\u4ece Dashboard \u90e8\u7f72\u5230\u89c4\u5219\u914d\u7f6e<\/h3>\n\u638c\u63e1\u6838\u5fc3\u6982\u5ff5\u540e，\u8fdb\u5165\u6700\u5173\u952e\u7684\u5b9e\u64cd\u73af\u8282\u3002\u672c\u8282\u5c06\u4ee5 SpringBoot \u9879\u76ee\u4e3a\u4f8b，\u4ece Sentinel Dashboard \u90e8\u7f72\u3001\u9879\u76ee\u96c6\u6210\u3001\u6838\u5fc3\u89c4\u5219\u914d\u7f6e\u4e09\u4e2a\u6b65\u9aa4，\u5e26\u4f60\u5feb\u901f\u5b9e\u73b0 Sentinel \u7684\u57fa\u7840\u4f7f\u7528，\u6240\u6709\u4ee3\u7801\u5747\u53ef\u76f4\u63a5\u590d\u7528\u3002<\/p>\n 3.1 \u7b2c\u4e00\u6b65：\u90e8\u7f72 Sentinel Dashboard（\u53ef\u89c6\u5316\u63a7\u5236\u53f0）<\/h4>\nSentinel Dashboard \u662f\u5b98\u65b9\u63d0\u4f9b\u7684\u53ef\u89c6\u5316\u7ba1\u7406\u5de5\u5177，\u7528\u4e8e\u914d\u7f6e\u89c4\u5219\u3001\u67e5\u770b\u76d1\u63a7\u6570\u636e\u3001\u7ba1\u7406\u8d44\u6e90，\u652f\u6301 Windows \u548c Linux \u53cc\u73af\u5883\u90e8\u7f72，\u6b65\u9aa4\u7b80\u5355：<\/p>\n 3.1.1 \u4e0b\u8f7d Dashboard \u5305<\/h5>\n\u4ece Sentinel \u5b98\u65b9 GitHub \u4ed3\u5e93（https:\/\/github.com\/alibaba\/Sentinel\/releases）\u4e0b\u8f7d\u6700\u65b0\u7684 jar \u5305（\u5982 sentinel-dashboard-1.8.6.jar），\u65e0\u9700\u89e3\u538b，\u76f4\u63a5\u901a\u8fc7\u547d\u4ee4\u542f\u52a8\u3002<\/p>\n 3.1.2 \u542f\u52a8 Dashboard（Windows \u73af\u5883）<\/h5>\n\u6253\u5f00\u547d\u4ee4\u63d0\u793a\u7b26（CMD），\u8fdb\u5165 jar \u5305\u6240\u5728\u76ee\u5f55，\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4：<\/p>\n java -jar sentinel-dashboard-1.8.6.jar –server.port=8080 <\/p>\n \u8bf4\u660e：–server.port=8080 \u6307\u5b9a Dashboard \u7684\u7aef\u53e3\u53f7，\u82e5 8080 \u7aef\u53e3\u88ab\u5360\u7528，\u53ef\u4fee\u6539\u4e3a\u5176\u4ed6\u7aef\u53e3（\u5982 8081）\u3002<\/p>\n 3.1.3 \u8bbf\u95ee Dashboard<\/h5>\n\u542f\u52a8\u6210\u529f\u540e，\u6253\u5f00\u6d4f\u89c8\u5668，\u8bbf\u95ee http:\/\/localhost:8080，\u8f93\u5165\u9ed8\u8ba4\u7528\u6237\u540d\u548c\u5bc6\u7801（\u5747\u4e3a sentinel），\u5373\u53ef\u8fdb\u5165\u63a7\u5236\u53f0\u3002\u9996\u6b21\u767b\u5f55\u65f6，\u63a7\u5236\u53f0\u4e3a\u7a7a，\u56e0\u4e3a\u8fd8\u672a\u96c6\u6210\u9879\u76ee，\u6ca1\u6709\u8d44\u6e90\u548c\u89c4\u5219\u6570\u636e\u3002<\/p>\n 3.2 \u7b2c\u4e8c\u6b65：SpringBoot \u9879\u76ee\u96c6\u6210 Sentinel<\/h4>\n\u672c\u6b65\u9aa4\u5b9e\u73b0 SpringBoot \u9879\u76ee\u4e0e Sentinel Dashboard \u7684\u96c6\u6210，\u8ba9\u9879\u76ee\u80fd\u591f\u5c06\u8d44\u6e90\u3001\u6d41\u91cf\u6570\u636e\u4e0a\u62a5\u5230 Dashboard，\u540c\u65f6\u63a5\u6536 Dashboard \u4e0b\u53d1\u7684\u89c4\u5219\u3002<\/p>\n 3.2.1 \u5f15\u5165\u4f9d\u8d56<\/h5>\n\u5728 SpringBoot \u9879\u76ee\u7684 pom.xml \u6587\u4ef6\u4e2d，\u5f15\u5165\u4ee5\u4e0b\u6838\u5fc3\u4f9d\u8d56（\u9002\u914d SpringBoot 2.x \u7248\u672c）：<\/p>\n <!– Sentinel \u6838\u5fc3\u4f9d\u8d56 –>
\n<dependency>
\n <groupId>com.alibaba.csp<\/groupId>
\n <artifactId>sentinel-core<\/artifactId>
\n <version>1.8.6<\/version>
\n<\/dependency>
\n<!– Sentinel \u4e0e SpringBoot \u96c6\u6210\u4f9d\u8d56 –>
\n<dependency>
\n <groupId>com.alibaba.cloud<\/groupId>
\n <artifactId>spring-cloud-starter-alibaba-sentinel<\/artifactId>
\n <version>2.2.10.RELEASE<\/version>
\n<\/dependency>
\n<!– Sentinel \u63a7\u5236\u53f0\u901a\u4fe1\u4f9d\u8d56（\u7528\u4e8e\u4e0a\u62a5\u6570\u636e\u3001\u63a5\u6536\u89c4\u5219） –>
\n<dependency>
\n <groupId>com.alibaba.csp<\/groupId>
\n <artifactId>sentinel-transport-simple-http<\/artifactId>
\n <version>1.8.6<\/version>
\n<\/dependency> <\/p>\n 3.2.2 \u914d\u7f6e application.yml<\/h5>\n\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u6dfb\u52a0 Sentinel \u76f8\u5173\u914d\u7f6e，\u6307\u5b9a Dashboard \u5730\u5740\u3001\u9879\u76ee\u540d\u79f0（\u7528\u4e8e\u5728 Dashboard \u4e2d\u8bc6\u522b\u9879\u76ee）：<\/p>\n spring:
\n application:
\n name: sentinel-demo # \u9879\u76ee\u540d\u79f0，\u5c06\u663e\u793a\u5728 Sentinel Dashboard \u4e2d
\n cloud:
\n sentinel:
\n transport:
\n dashboard: localhost:8080 # Sentinel Dashboard \u5730\u5740\u548c\u7aef\u53e3
\n port: 8719 # \u5ba2\u6237\u7aef\u4e0e Dashboard \u901a\u4fe1\u7684\u7aef\u53e3，\u9ed8\u8ba4 8719，\u82e5\u88ab\u5360\u7528\u4f1a\u81ea\u52a8\u9012\u589e
\n eager: true # \u7acb\u5373\u521d\u59cb\u5316 Sentinel，\u907f\u514d\u9996\u6b21\u8bbf\u95ee\u63a5\u53e3\u65f6\u65e0\u6570\u636e <\/p>\n 3.2.3 \u5b9a\u4e49\u8d44\u6e90（\u6838\u5fc3\u6b65\u9aa4）<\/h5>\n\u901a\u8fc7@SentinelResource \u6ce8\u89e3\u5b9a\u4e49\u8d44\u6e90，\u5e76\u6307\u5b9a\u964d\u7ea7\u65b9\u6cd5（\u515c\u5e95\u903b\u8f91）\u3002\u8fd9\u91cc\u4ee5\u4e00\u4e2a\u201c\u521b\u5efa\u8ba2\u5355\u201d\u63a5\u53e3\u4e3a\u4f8b，\u6f14\u793a\u8d44\u6e90\u5b9a\u4e49\u548c\u964d\u7ea7\u65b9\u6cd5\u7684\u7f16\u5199：<\/p>\n import com.alibaba.csp.sentinel.annotation.SentinelResource;
\nimport com.alibaba.csp.sentinel.slots.block.BlockException;
\nimport org.springframework.web.bind.annotation.GetMapping;
\nimport org.springframework.web.bind.annotation.PathVariable;
\nimport org.springframework.web.bind.annotation.RestController;<\/p>\n @RestController
\npublic class OrderController {<\/p>\n \/**
\n * \u5b9a\u4e49\u8d44\u6e90：createOrder（\u8d44\u6e90\u540d）
\n * blockHandler：\u9650\u6d41\/\u7194\u65ad\u65f6\u89e6\u53d1\u7684\u964d\u7ea7\u65b9\u6cd5
\n *\/
\n @GetMapping("\/order\/create\/{userId}")
\n @SentinelResource(value = "createOrder", blockHandler = "createOrderBlockHandler")
\n public String createOrder(@PathVariable Long userId) {
\n \/\/ \u6a21\u62df\u8ba2\u5355\u521b\u5efa\u903b\u8f91（\u5b9e\u9645\u573a\u666f\u4e2d\u4f1a\u8c03\u7528\u4e1a\u52a1\u670d\u52a1）
\n return "\u7528\u6237 " + userId + " \u7684\u8ba2\u5355\u521b\u5efa\u6210\u529f！";
\n }<\/p>\n \/**
\n * \u964d\u7ea7\u65b9\u6cd5：\u9650\u6d41\/\u7194\u65ad\u65f6\u6267\u884c
\n * \u6ce8\u610f：1. \u65b9\u6cd5\u53c2\u6570\u9700\u4e0e\u539f\u8d44\u6e90\u65b9\u6cd5\u4e00\u81f4；2. \u6700\u540e\u9700\u989d\u5916\u6dfb\u52a0 BlockException \u53c2\u6570
\n *\/
\n public String createOrderBlockHandler(Long userId, BlockException e) {
\n \/\/ \u515c\u5e95\u903b\u8f91：\u8fd4\u56de\u53cb\u597d\u63d0\u793a（\u53ef\u6839\u636e\u4e1a\u52a1\u9700\u6c42\u4fee\u6539，\u5982\u8fd4\u56de\u7f13\u5b58\u6570\u636e\u3001\u9ed8\u8ba4\u503c）
\n return "\u5f53\u524d\u7cfb\u7edf\u7e41\u5fd9，\u8bf7\u7a0d\u540e\u518d\u8bd5（\u964d\u7ea7\u63d0\u793a）！";
\n }
\n} <\/p>\n 3.2.4 \u6d4b\u8bd5\u96c6\u6210\u6548\u679c<\/h5>\n - \n
\u542f\u52a8 SpringBoot \u9879\u76ee\u548c Sentinel Dashboard；<\/p>\n<\/li>\n - \n
\u8bbf\u95ee\u63a5\u53e3：http:\/\/localhost:8081\/order\/create\/1001（\u9879\u76ee\u7aef\u53e3\u9ed8\u8ba4 8080，\u82e5\u51b2\u7a81\u53ef\u81ea\u884c\u4fee\u6539）；<\/p>\n<\/li>\n - \n
\u6253\u5f00 Sentinel Dashboard，\u5728\u201c\u7c07\u70b9\u94fe\u8def\u201d\u4e2d，\u5373\u53ef\u770b\u5230 createOrder \u8d44\u6e90\u5df2\u88ab\u8bc6\u522b，\u6b64\u65f6\u5c1a\u672a\u914d\u7f6e\u89c4\u5219，\u8bf7\u6c42\u4f1a\u6b63\u5e38\u8fd4\u56de\u3002<\/p>\n<\/li>\n 3.3 \u7b2c\u4e09\u6b65：\u914d\u7f6e\u6838\u5fc3\u89c4\u5219（\u5b9e\u64cd\u6f14\u7ec3）<\/h4>\n\u96c6\u6210\u6210\u529f\u540e，\u901a\u8fc7 Sentinel Dashboard \u914d\u7f6e\u89c4\u5219，\u5b9e\u73b0\u9650\u6d41\u3001\u7194\u65ad\u7b49\u529f\u80fd\u3002\u4e0b\u9762\u9488\u5bf9\u6700\u5e38\u7528\u7684\u201c\u6d41\u91cf\u63a7\u5236\u89c4\u5219\u201d\u548c\u201c\u7194\u65ad\u964d\u7ea7\u89c4\u5219\u201d，\u8fdb\u884c\u5b9e\u64cd\u6f14\u7ec3：<\/p>\n 3.3.1 \u6d41\u91cf\u63a7\u5236\u89c4\u5219（\u6700\u5e38\u7528）<\/h5>\n\u573a\u666f：\u9650\u5236 createOrder \u63a5\u53e3\u7684 QPS \u4e3a 10（\u6bcf\u79d2\u6700\u591a\u5141\u8bb8 10 \u6b21\u8bf7\u6c42），\u907f\u514d\u6d41\u91cf\u8fc7\u8f7d\u3002<\/p>\n - \n
\u8fdb\u5165 Sentinel Dashboard \u2192 \u70b9\u51fb\u5de6\u4fa7\u201c\u6d41\u91cf\u63a7\u5236\u201d \u2192 \u70b9\u51fb\u201c\u65b0\u589e\u6d41\u63a7\u89c4\u5219\u201d；<\/p>\n<\/li>\n - \n
\u914d\u7f6e\u89c4\u5219\u53c2\u6570（\u5173\u952e\u53c2\u6570\u5fc5\u770b）：<\/p>\n - \n
\u8d44\u6e90\u540d：createOrder（\u5fc5\u987b\u4e0e @SentinelResource \u7684 value \u4e00\u81f4，\u533a\u5206\u5927\u5c0f\u5199）；<\/p>\n<\/li>\n - \n
\u9488\u5bf9\u6765\u6e90：default（\u9ed8\u8ba4\u503c，\u4e0d\u533a\u5206\u8c03\u7528\u6765\u6e90，\u82e5\u9700\u9488\u5bf9\u7279\u5b9a\u670d\u52a1\u9650\u6d41，\u53ef\u586b\u5199\u670d\u52a1\u540d）；<\/p>\n<\/li>\n - \n
\u9608\u503c\u7c7b\u578b：QPS（\u63a8\u8350，\u9002\u5408\u63a5\u53e3\u9650\u6d41；\u82e5\u9700\u9650\u5236\u5e76\u53d1\u7ebf\u7a0b\u6570，\u53ef\u9009\u62e9\u201c\u7ebf\u7a0b\u6570\u201d）；<\/p>\n<\/li>\n - \n
\u9608\u503c：10（\u6bcf\u79d2\u6700\u591a\u5141\u8bb8 10 \u6b21\u8bf7\u6c42）；<\/p>\n<\/li>\n - \n
\u6d41\u63a7\u6a21\u5f0f：\u76f4\u63a5（\u76f4\u63a5\u5bf9\u5f53\u524d\u8d44\u6e90\u9650\u6d41）；<\/p>\n<\/li>\n - \n
\u6d41\u63a7\u6548\u679c：\u5feb\u901f\u5931\u8d25（\u9ed8\u8ba4，\u8d85\u51fa\u9608\u503c\u76f4\u63a5\u62d2\u7edd\u8bf7\u6c42，\u6267\u884c\u964d\u7ea7\u65b9\u6cd5）\u3002<\/p>\n<\/li>\n<\/li>\n - \n
\u70b9\u51fb\u201c\u65b0\u589e\u201d，\u89c4\u5219\u7acb\u5373\u751f\u6548（\u65e0\u9700\u91cd\u542f\u9879\u76ee）；<\/p>\n<\/li>\n - \n
\u6d4b\u8bd5\u6548\u679c：\u7528 Postman \u6216 JMeter \u6bcf\u79d2\u53d1\u9001 15 \u6b21\u8bf7\u6c42，\u89c2\u5bdf\u8fd4\u56de\u7ed3\u679c\u2014\u2014\u524d 10 \u6b21\u8fd4\u56de\u6b63\u5e38\u63d0\u793a，\u8d85\u51fa 10 \u6b21\u7684\u8bf7\u6c42\u4f1a\u8fd4\u56de\u964d\u7ea7\u63d0\u793a，\u540c\u65f6 Dashboard \u4e2d\u4f1a\u5b9e\u65f6\u663e\u793a\u9650\u6d41\u6570\u636e\u3002<\/p>\n<\/li>\n \u8865\u5145：\u6d41\u63a7\u6548\u679c\u9664\u4e86\u201c\u5feb\u901f\u5931\u8d25\u201d，\u8fd8\u6709\u4e24\u79cd\u5e38\u7528\u6a21\u5f0f：<\/p>\n \n- \n
Warm Up（\u9884\u70ed）：\u9002\u7528\u4e8e\u79d2\u6740\u3001\u4fc3\u9500\u7b49\u573a\u666f，\u9608\u503c\u4ece\u4f4e\u5230\u9ad8\u9010\u6e10\u63d0\u5347（\u5982\u9608\u503c 10，\u9884\u70ed\u65f6\u95f4 5 \u79d2，\u524d 5 \u79d2\u9608\u503c\u4ece 2 \u9010\u6e10\u6da8\u5230 10），\u907f\u514d\u77ac\u95f4\u6d41\u91cf\u51fb\u57ae\u670d\u52a1；<\/p>\n<\/li>\n - \n
\u6392\u961f\u7b49\u5f85：\u9002\u7528\u4e8e\u975e\u5b9e\u65f6\u573a\u666f（\u5982\u6570\u636e\u7edf\u8ba1），\u8d85\u51fa\u9608\u503c\u7684\u8bf7\u6c42\u4f1a\u6392\u961f\u7b49\u5f85，\u907f\u514d\u76f4\u63a5\u62d2\u7edd，\u63d0\u5347\u8bf7\u6c42\u6210\u529f\u7387（\u9700\u8bbe\u7f6e\u8d85\u65f6\u65f6\u95f4）\u3002<\/p>\n<\/li>\n<\/ul>\n 3.3.2 \u7194\u65ad\u964d\u7ea7\u89c4\u5219<\/h5>\n\u573a\u666f：\u5f53 createOrder \u63a5\u53e3\u51fa\u73b0\u6162\u8c03\u7528（\u54cd\u5e94\u65f6\u95f4\u8d85\u8fc7 300ms）\u7684\u6bd4\u4f8b\u8d85\u8fc7 50% \u65f6，\u89e6\u53d1\u7194\u65ad，\u7194\u65ad\u65f6\u957f 5 \u79d2，\u671f\u95f4\u62d2\u7edd\u6240\u6709\u8bf7\u6c42，\u6267\u884c\u964d\u7ea7\u65b9\u6cd5\u3002<\/p>\n - \n
\u8fdb\u5165 Sentinel Dashboard \u2192 \u70b9\u51fb\u5de6\u4fa7\u201c\u7194\u65ad\u964d\u7ea7\u201d \u2192 \u70b9\u51fb\u201c\u65b0\u589e\u964d\u7ea7\u89c4\u5219\u201d；<\/p>\n<\/li>\n - \n
\u914d\u7f6e\u89c4\u5219\u53c2\u6570：<\/p>\n - \n
\u8d44\u6e90\u540d：createOrder（\u4e0e\u8d44\u6e90\u5b9a\u4e49\u4e00\u81f4）；<\/p>\n<\/li>\n - \n
\u7194\u65ad\u7b56\u7565：\u6162\u8c03\u7528\u6bd4\u4f8b（\u4e5f\u53ef\u9009\u62e9\u201c\u5f02\u5e38\u6bd4\u4f8b\u201d\u201c\u5f02\u5e38\u6570\u201d）；<\/p>\n<\/li>\n - \n
\u6700\u5927RT：300（\u6162\u8c03\u7528\u9608\u503c，\u5355\u4f4d ms，\u54cd\u5e94\u65f6\u95f4\u8d85\u8fc7\u8be5\u503c\u7684\u8bf7\u6c42\u89c6\u4e3a\u6162\u8c03\u7528）；<\/p>\n<\/li>\n - \n
\u6bd4\u4f8b\u9608\u503c：0.5（\u6162\u8c03\u7528\u6bd4\u4f8b\u9608\u503c，\u5373 50%）；<\/p>\n<\/li>\n - \n
\u6700\u5c0f\u8bf7\u6c42\u6570：5（\u89e6\u53d1\u7194\u65ad\u7684\u6700\u5c0f\u8bf7\u6c42\u6570，\u907f\u514d\u5c11\u91cf\u8bf7\u6c42\u8bef\u89e6\u53d1\u7194\u65ad）；<\/p>\n<\/li>\n - \n
\u7194\u65ad\u65f6\u957f：5（\u7194\u65ad\u6301\u7eed\u65f6\u95f4，\u5355\u4f4d\u79d2，\u671f\u95f4\u62d2\u7edd\u6240\u6709\u8bf7\u6c42）\u3002<\/p>\n<\/li>\n<\/li>\n - \n
\u70b9\u51fb\u201c\u65b0\u589e\u201d，\u89c4\u5219\u751f\u6548；<\/p>\n<\/li>\n - \n
\u6d4b\u8bd5\u6548\u679c：\u6a21\u62df\u6162\u8c03\u7528（\u5728\u63a5\u53e3\u4e2d\u6dfb\u52a0 Thread.sleep(400)），\u5f53\u6bcf\u79d2\u8bf7\u6c42\u6570\u8fbe\u5230 5 \u6b21\u4ee5\u4e0a，\u4e14\u6162\u8c03\u7528\u6bd4\u4f8b\u8d85\u8fc7 50% \u65f6，\u4f1a\u89e6\u53d1\u7194\u65ad，\u6b64\u65f6\u8bbf\u95ee\u63a5\u53e3\u4f1a\u76f4\u63a5\u8fd4\u56de\u964d\u7ea7\u63d0\u793a，5 \u79d2\u540e\u81ea\u52a8\u8fdb\u5165\u534a\u6253\u5f00\u72b6\u6001，\u5c1d\u8bd5\u6062\u590d\u3002<\/p>\n<\/li>\n 3.3.3 \u5176\u4ed6\u5e38\u7528\u89c4\u5219（\u7b80\u8981\u8bf4\u660e）<\/h4>\n\n- \n
\u70ed\u70b9\u53c2\u6570\u9650\u6d41\u89c4\u5219：\u5bf9\u9ad8\u9891\u53c2\u6570\u5355\u72ec\u9650\u6d41，\u6bd4\u5982\u9650\u5236\u201c\u5546\u54c1ID=100\u201d\u7684 QPS \u4e3a 50，\u5176\u4ed6\u5546\u54c1ID\u4e0d\u53d7\u9650\u3002\u914d\u7f6e\u65f6\u9700\u6307\u5b9a\u8d44\u6e90\u540d\u3001\u53c2\u6570\u7d22\u5f15（\u5982\u7b2c\u4e00\u4e2a\u53c2\u6570\u7d22\u5f15\u4e3a 0）\u3001\u9608\u503c\u3002<\/p>\n<\/li>\n - \n
\u7cfb\u7edf\u4fdd\u62a4\u89c4\u5219：\u4ece\u7cfb\u7edf\u6574\u4f53\u7ef4\u5ea6\u9632\u62a4，\u6bd4\u5982\u5f53 CPU \u4f7f\u7528\u7387\u8d85\u8fc7 80%\u3001\u7cfb\u7edf\u8d1f\u8f7d\u8fc7\u9ad8\u65f6，\u81ea\u52a8\u9650\u5236\u6240\u6709\u5165\u53e3\u6d41\u91cf，\u4f18\u5148\u4fdd\u969c\u6838\u5fc3\u670d\u52a1\u3002<\/p>\n<\/li>\n - \n
\u9ed1\u767d\u540d\u5355\u89c4\u5219：\u901a\u8fc7 IP\u3001\u7528\u6237ID \u7b49\u9650\u5236\u8bbf\u95ee，\u6bd4\u5982\u5141\u8bb8 IP \u4e3a 127.0.0.1 \u7684\u8bf7\u6c42\u8bbf\u95ee，\u62d2\u7edd\u5176\u4ed6 IP \u8bbf\u95ee，\u5b9e\u73b0\u63a5\u53e3\u5b89\u5168\u9632\u62a4\u3002<\/p>\n<\/li>\n<\/ul>\n \u56db\u3001\u8fdb\u9636\u7279\u6027：\u4f01\u4e1a\u7ea7\u843d\u5730\u5fc5\u5907\u6280\u5de7<\/h3>\n\u57fa\u7840\u5b9e\u64cd\u5b8c\u6210\u540e，\u82e5\u8981\u5c06 Sentinel \u843d\u5730\u5230\u751f\u4ea7\u73af\u5883，\u8fd8\u9700\u8981\u638c\u63e1\u4ee5\u4e0b\u8fdb\u9636\u7279\u6027，\u89e3\u51b3\u201c\u89c4\u5219\u4e22\u5931\u201d\u201c\u6027\u80fd\u4f18\u5316\u201d\u201c\u96c6\u7fa4\u9650\u6d41\u201d\u7b49\u95ee\u9898：<\/p>\n 4.1 \u89c4\u5219\u6301\u4e45\u5316（\u89e3\u51b3\u201c\u91cd\u542f\u9879\u76ee\u89c4\u5219\u4e22\u5931\u201d\u95ee\u9898）<\/h4>\n\u9ed8\u8ba4\u60c5\u51b5\u4e0b，Sentinel \u7684\u89c4\u5219\u662f\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\u7684，\u9879\u76ee\u91cd\u542f\u540e，\u6240\u6709\u914d\u7f6e\u7684\u89c4\u5219\u90fd\u4f1a\u4e22\u5931，\u8fd9\u5728\u751f\u4ea7\u73af\u5883\u4e2d\u662f\u4e0d\u53ef\u63a5\u53d7\u7684\u3002\u89e3\u51b3\u65b9\u6848\u662f\u5c06\u89c4\u5219\u6301\u4e45\u5316\u5230\u914d\u7f6e\u4e2d\u5fc3（\u5982 Nacos\u3001Apollo），\u5b9e\u73b0\u89c4\u5219\u7684\u6301\u4e45\u5316\u548c\u52a8\u6001\u66f4\u65b0\u3002<\/p>\n \u4ee5 Nacos \u4e3a\u4f8b，\u5b9e\u73b0\u6b65\u9aa4\u5982\u4e0b（\u6838\u5fc3\u914d\u7f6e）：<\/p>\n - \n
\u5f15\u5165 Nacos \u4e0e Sentinel \u96c6\u6210\u4f9d\u8d56：<\/p>\n <dependency>
\n <groupId>com.alibaba.csp<\/groupId>
\n <artifactId>sentinel-datasource-nacos<\/artifactId>
\n <version>1.8.6<\/version>
\n<\/dependency> <\/p>\n<\/li>\n - \n
\u5728 application.yml \u4e2d\u914d\u7f6e Nacos \u6570\u636e\u6e90：\u00a0<\/p>\n spring:
\n cloud:
\n sentinel:
\n datasource:
\n ds1: # \u6570\u636e\u6e90\u540d\u79f0，\u53ef\u81ea\u5b9a\u4e49
\n nacos:
\n server-addr: localhost:8848 # Nacos \u5730\u5740
\n dataId: sentinel-rules # Nacos \u4e2d\u5b58\u50a8\u89c4\u5219\u7684 dataId
\n groupId: DEFAULT_GROUP # Nacos \u5206\u7ec4
\n rule-type: flow # \u89c4\u5219\u7c7b\u578b（flow：\u6d41\u91cf\u63a7\u5236\u89c4\u5219，degrade：\u7194\u65ad\u964d\u7ea7\u89c4\u5219） <\/p>\n<\/li>\n - \n
\u5728 Nacos \u63a7\u5236\u53f0\u521b\u5efa\u5bf9\u5e94\u7684\u914d\u7f6e（dataId \u4e3a sentinel-rules），\u914d\u7f6e\u5185\u5bb9\u4e3a JSON \u683c\u5f0f\u7684\u89c4\u5219，\u793a\u4f8b（\u6d41\u91cf\u63a7\u5236\u89c4\u5219）：\u00a0<\/p>\n [
\n {
\n "resource": "createOrder",
\n "limitApp": "default",
\n "grade": 1,
\n "count": 10,
\n "strategy": 0,
\n "controlBehavior": 0,
\n "clusterMode": false
\n }
\n] <\/p>\n<\/li>\n \u914d\u7f6e\u5b8c\u6210\u540e，\u89c4\u5219\u4f1a\u81ea\u52a8\u4ece Nacos \u52a0\u8f7d，\u4fee\u6539 Nacos \u4e2d\u7684\u89c4\u5219，\u9879\u76ee\u65e0\u9700\u91cd\u542f\u5373\u53ef\u751f\u6548，\u540c\u65f6\u9879\u76ee\u91cd\u542f\u540e\u89c4\u5219\u4e5f\u4e0d\u4f1a\u4e22\u5931\u3002<\/p>\n 4.2 \u96c6\u7fa4\u6d41\u63a7（\u5206\u5e03\u5f0f\u7cfb\u7edf\u5fc5\u5907）<\/h4>\n\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d，\u4e00\u4e2a\u670d\u52a1\u53ef\u80fd\u90e8\u7f72\u591a\u4e2a\u5b9e\u4f8b，\u82e5\u6bcf\u4e2a\u5b9e\u4f8b\u5355\u72ec\u9650\u6d41（\u5982\u6bcf\u4e2a\u5b9e\u4f8b QPS \u9650\u5236 100），\u5219\u6574\u4e2a\u96c6\u7fa4\u7684 QPS \u4f1a\u8fbe\u5230 100 \u00d7 \u5b9e\u4f8b\u6570，\u53ef\u80fd\u8d85\u51fa\u540e\u7aef\u670d\u52a1\u7684\u627f\u8f7d\u80fd\u529b\u3002\u96c6\u7fa4\u6d41\u63a7\u5c31\u662f\u5bf9\u6574\u4e2a\u96c6\u7fa4\u7684\u6d41\u91cf\u8fdb\u884c\u7edf\u4e00\u9650\u5236（\u5982\u96c6\u7fa4\u603b QPS \u9650\u5236 500），\u5b9e\u73b0\u5168\u5c40\u6d41\u91cf\u63a7\u5236\u3002<\/p>\n \u5b9e\u73b0\u96c6\u7fa4\u6d41\u63a7\u9700\u8981\u90e8\u7f72 Sentinel Token Server（\u4ee4\u724c\u670d\u52a1\u5668），\u5ba2\u6237\u7aef\u901a\u8fc7 Token Server \u83b7\u53d6\u4ee4\u724c，\u53ea\u6709\u83b7\u53d6\u5230\u4ee4\u724c\u7684\u8bf7\u6c42\u624d\u80fd\u8bbf\u95ee\u8d44\u6e90\u3002\u6838\u5fc3\u914d\u7f6e\u5982\u4e0b（\u5ba2\u6237\u7aef）：<\/p>\n spring:
\n cloud:
\n sentinel:
\n transport:
\n cluster-server:
\n host: localhost # Token Server \u5730\u5740
\n port: 18730 # Token Server \u7aef\u53e3 <\/p>\n 4.3 \u5f02\u6b65\u8d44\u6e90\u652f\u6301<\/h4>\n\u5728\u5f02\u6b65\u7f16\u7a0b\u573a\u666f\u4e2d（\u5982 Spring Boot Async），\u666e\u901a\u7684\u8d44\u6e90\u5b9a\u4e49\u65b9\u5f0f\u65e0\u6cd5\u751f\u6548，\u9700\u8981\u4f7f\u7528 Sentinel \u7684\u5f02\u6b65\u57cb\u70b9\u65b9\u5f0f\u5b9a\u4e49\u8d44\u6e90\u3002\u793a\u4f8b\u4ee3\u7801：<\/p>\n import com.alibaba.csp.sentinel.AsyncEntry;
\nimport com.alibaba.csp.sentinel.SphU;
\nimport com.alibaba.csp.sentinel.slots.block.BlockException;
\nimport org.springframework.scheduling.annotation.Async;
\nimport org.springframework.stereotype.Service;<\/p>\n @Service
\npublic class AsyncService {<\/p>\n @Async
\n public void asyncHandle() {
\n AsyncEntry entry = null;
\n try {
\n \/\/ \u5f02\u6b65\u57cb\u70b9\u5b9a\u4e49\u8d44\u6e90
\n entry = SphU.asyncEntry("asyncHandleResource");
\n \/\/ \u5f02\u6b65\u4e1a\u52a1\u903b\u8f91
\n System.out.println("\u5f02\u6b65\u5904\u7406\u4e1a\u52a1…");
\n } catch (BlockException e) {
\n \/\/ \u9650\u6d41\/\u7194\u65ad\u5904\u7406
\n System.out.println("\u5f02\u6b65\u8d44\u6e90\u88ab\u9650\u6d41\/\u7194\u65ad");
\n } finally {
\n if (entry != null) {
\n entry.exit(); \/\/ \u91ca\u653e\u8d44\u6e90
\n }
\n }
\n }
\n} <\/p>\n \u4e94\u3001\u907f\u5751\u6307\u5357：\u5b9e\u64cd\u4e2d\u5e38\u89c1\u95ee\u9898\u53ca\u89e3\u51b3\u65b9\u6848<\/h3>\n\u7ed3\u5408\u5b9e\u6218\u7ecf\u9a8c，\u6574\u7406\u4e86\u4ee5\u4e0b\u51e0\u4e2a\u5e38\u89c1\u95ee\u9898，\u5e2e\u4f60\u5feb\u901f\u6392\u67e5\u95ee\u9898，\u907f\u514d\u8e29\u5751：<\/p>\n 5.1 \u95ee\u98981：Dashboard \u4e2d\u770b\u4e0d\u5230\u8d44\u6e90\/\u6d41\u91cf\u6570\u636e<\/h4>\n\u6392\u67e5\u6b65\u9aa4：<\/p>\n \n- \n
\u68c0\u67e5\u9879\u76ee\u914d\u7f6e：\u786e\u8ba4 spring.cloud.sentinel.transport.dashboard \u914d\u7f6e\u6b63\u786e，\u4e0e Dashboard \u5730\u5740\u4e00\u81f4；<\/p>\n<\/li>\n - \n
\u68c0\u67e5\u7aef\u53e3\u5360\u7528：\u5ba2\u6237\u7aef\u4e0e Dashboard \u901a\u4fe1\u7684\u7aef\u53e3（\u9ed8\u8ba4 8719）\u662f\u5426\u88ab\u5360\u7528，\u53ef\u901a\u8fc7 netstat -ano | findstr 8719 \u6392\u67e5；<\/p>\n<\/li>\n - \n
\u786e\u8ba4\u8d44\u6e90\u88ab\u8bbf\u95ee：Sentinel \u662f\u201c\u61d2\u52a0\u8f7d\u201d\u7684（\u9664\u975e\u914d\u7f6e\u4e86 eager: true），\u9700\u5148\u8bbf\u95ee\u4e00\u6b21\u63a5\u53e3，\u8d44\u6e90\u624d\u4f1a\u88ab\u4e0a\u62a5\u5230 Dashboard；<\/p>\n<\/li>\n - \n
\u68c0\u67e5\u4f9d\u8d56\u7248\u672c：\u786e\u4fdd Sentinel \u76f8\u5173\u4f9d\u8d56\u7248\u672c\u4e00\u81f4（\u5982 core\u3001transport\u3001dashboard \u7248\u672c\u7edf\u4e00），\u907f\u514d\u7248\u672c\u51b2\u7a81\u3002<\/p>\n<\/li>\n<\/ul>\n 5.2 \u95ee\u98982：\u89c4\u5219\u914d\u7f6e\u540e\u4e0d\u751f\u6548<\/h4>\n\u6392\u67e5\u6b65\u9aa4：<\/p>\n \n- \n
\u68c0\u67e5\u8d44\u6e90\u540d：\u89c4\u5219\u4e2d\u7684\u8d44\u6e90\u540d\u5fc5\u987b\u4e0e @SentinelResource \u7684 value \u5b8c\u5168\u4e00\u81f4，\u533a\u5206\u5927\u5c0f\u5199；<\/p>\n<\/li>\n - \n
\u68c0\u67e5\u89c4\u5219\u7c7b\u578b：\u786e\u8ba4\u89c4\u5219\u7c7b\u578b\u4e0e\u9700\u6c42\u4e00\u81f4（\u5982\u8981\u9650\u6d41\u5374\u914d\u7f6e\u4e86\u7194\u65ad\u89c4\u5219）；<\/p>\n<\/li>\n - \n
\u68c0\u67e5\u9608\u503c\u8bbe\u7f6e：\u786e\u8ba4\u9608\u503c\u8bbe\u7f6e\u5408\u7406，\u6bd4\u5982 QPS \u9608\u503c\u8bbe\u7f6e\u8fc7\u9ad8，\u5bfc\u81f4\u65e0\u6cd5\u89e6\u53d1\u9650\u6d41；<\/p>\n<\/li>\n - \n
\u68c0\u67e5\u89c4\u5219\u6301\u4e45\u5316：\u82e5\u914d\u7f6e\u4e86 Nacos \u6301\u4e45\u5316，\u786e\u8ba4 Nacos \u4e2d\u7684\u89c4\u5219\u914d\u7f6e\u6b63\u786e，\u4e14 dataId\u3001groupId \u4e0e\u9879\u76ee\u914d\u7f6e\u4e00\u81f4\u3002<\/p>\n<\/li>\n<\/ul>\n 5.3 \u95ee\u98983：\u964d\u7ea7\u65b9\u6cd5\u4e0d\u6267\u884c<\/h4>\n\u6392\u67e5\u6b65\u9aa4：<\/p>\n \n- \n
\u68c0\u67e5\u964d\u7ea7\u65b9\u6cd5\u7b7e\u540d：\u786e\u4fdd\u964d\u7ea7\u65b9\u6cd5\u7684\u53c2\u6570\u4e0e\u539f\u8d44\u6e90\u65b9\u6cd5\u5b8c\u5168\u4e00\u81f4，\u4e14\u6700\u540e\u989d\u5916\u6dfb\u52a0 BlockException \u53c2\u6570；<\/p>\n<\/li>\n - \n
\u68c0\u67e5\u6ce8\u89e3\u5c5e\u6027：\u786e\u8ba4 @SentinelResource \u6ce8\u89e3\u6307\u5b9a\u4e86 blockHandler \u5c5e\u6027，\u4e14\u5c5e\u6027\u503c\u4e0e\u964d\u7ea7\u65b9\u6cd5\u540d\u4e00\u81f4；<\/p>\n<\/li>\n - \n
\u533a\u5206\u964d\u7ea7\u7c7b\u578b：blockHandler \u5904\u7406\u7684\u662f\u201c\u9650\u6d41\/\u7194\u65ad\u201d\u89e6\u53d1\u7684\u964d\u7ea7，\u82e5\u8981\u5904\u7406\u201c\u4e1a\u52a1\u5f02\u5e38\u201d\u89e6\u53d1\u7684\u964d\u7ea7，\u9700\u4f7f\u7528 fallback \u5c5e\u6027\u3002<\/p>\n<\/li>\n<\/ul>\n \u516d\u3001\u603b\u7ed3\u4e0e\u5c55\u671b<\/h3>\nSentinel \u4f5c\u4e3a\u4e00\u6b3e\u8f7b\u91cf\u7ea7\u3001\u9ad8\u6027\u80fd\u7684\u6d41\u91cf\u6cbb\u7406\u7ec4\u4ef6，\u5176\u6838\u5fc3\u4ef7\u503c\u5728\u4e8e\u201c\u9632\u60a3\u4e8e\u672a\u7136\u201d\u2014\u2014\u901a\u8fc7\u9650\u6d41\u3001\u7194\u65ad\u7b49\u673a\u5236，\u63d0\u524d\u62e6\u622a\u5f02\u5e38\u6d41\u91cf，\u907f\u514d\u7cfb\u7edf\u88ab\u51fb\u57ae，\u4fdd\u969c\u5fae\u670d\u52a1\u67b6\u6784\u7684\u7a33\u5b9a\u6027\u3002\u672c\u6587\u4ece\u6838\u5fc3\u4f18\u52bf\u3001\u6982\u5ff5\u89e3\u6790\u3001\u5b9e\u64cd\u843d\u5730\u3001\u8fdb\u9636\u7279\u6027\u3001\u907f\u5751\u6307\u5357\u4e94\u4e2a\u7ef4\u5ea6，\u5168\u9762\u8bb2\u89e3\u4e86 Sentinel \u7684\u4f7f\u7528，\u8986\u76d6\u4e86\u4ece\u65b0\u624b\u5165\u95e8\u5230\u4f01\u4e1a\u7ea7\u843d\u5730\u7684\u5168\u6d41\u7a0b\u3002<\/p>\n \u7ed3\u5408\u5b9e\u6218\u7ecf\u9a8c，Sentinel \u7684\u4f7f\u7528\u6838\u5fc3\u53ef\u603b\u7ed3\u4e3a\u4e09\u70b9：<\/p>\n - \n
\u660e\u786e\u8d44\u6e90：\u627e\u51c6\u9700\u8981\u88ab\u4fdd\u62a4\u7684\u63a5\u53e3\/\u670d\u52a1，\u5408\u7406\u5b9a\u4e49\u8d44\u6e90；<\/p>\n<\/li>\n - \n
\u7cbe\u51c6\u914d\u89c4：\u6839\u636e\u4e1a\u52a1\u573a\u666f\u9009\u62e9\u5408\u9002\u7684\u89c4\u5219\u7c7b\u578b，\u8bbe\u7f6e\u5408\u7406\u7684\u9608\u503c；<\/p>\n<\/li>\n - \n
\u515c\u5e95\u964d\u7ea7：\u4e3a\u6bcf\u4e2a\u8d44\u6e90\u914d\u7f6e\u5408\u9002\u7684\u964d\u7ea7\u903b\u8f91，\u63d0\u5347\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n<\/li>\n \u672a\u6765，Sentinel \u8fd8\u5c06\u6301\u7eed\u8fed\u4ee3，\u8fdb\u4e00\u6b65\u6574\u5408\u670d\u52a1\u7f51\u683c（\u5982 Istio）\u3001\u5b9e\u73b0\u57fa\u4e8e AI \u7684\u667a\u80fd\u6d41\u63a7，\u8ba9\u6d41\u91cf\u6cbb\u7406\u53d8\u5f97\u66f4\u7b80\u5355\u3001\u66f4\u9ad8\u6548\u3002\u5bf9\u4e8e\u5f00\u53d1\u8005\u800c\u8a00，\u638c\u63e1 Sentinel \u4e0d\u4ec5\u80fd\u63d0\u5347\u9879\u76ee\u7684\u7a33\u5b9a\u6027，\u66f4\u662f\u5fae\u670d\u52a1\u67b6\u6784\u80fd\u529b\u7684\u91cd\u8981\u4f53\u73b0\u3002<\/p>\n \u6700\u540e，\u5efa\u8bae\u5927\u5bb6\u7ed3\u5408\u672c\u6587\u7684\u5b9e\u64cd\u6b65\u9aa4，\u4eb2\u624b\u642d\u5efa\u4e00\u4e2a Demo，\u5c1d\u8bd5\u914d\u7f6e\u4e0d\u540c\u7684\u89c4\u5219，\u611f\u53d7 Sentinel \u7684\u5f3a\u5927\u529f\u80fd\u3002\u5b9e\u8df5\u51fa\u771f\u77e5，\u53ea\u6709\u771f\u6b63\u52a8\u624b\u5b9e\u64cd，\u624d\u80fd\u5c06\u7406\u8bba\u8f6c\u5316\u4e3a\u5b9e\u6218\u80fd\u529b，\u8ba9 Sentinel \u6210\u4e3a\u4f60\u9879\u76ee\u4e2d\u7684\u201c\u7a33\u5b9a\u6027\u5b88\u62a4\u8005\u201d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":" \u5728\u5fae\u670d\u52a1\u67b6\u6784\u666e\u53ca\u7684\u4eca\u5929，\u201c\u96ea\u5d29\u6548\u5e94\u201d\u65e9\u5df2\u4e0d\u662f\u964c\u751f\u7684\u540d\u8bcd\u2014\u2014\u4e00\u4e2a\u670d\u52a1\u7684\u8d85\u65f6\u3001\u5f02\u5e38，\u53ef\u80fd\u50cf\u591a\u7c73\u8bfa\u9aa8\u724c\u4e00\u6837，\u5f15\u53d1\u4e0a\u4e0b\u6e38\u670d\u52a1\u8fde\u9501\u5d29\u6e83，\u6700\u7ec8\u5bfc\u81f4\u6574\u4e2a\u7cfb\u7edf\u762b\u75ea\u3002\u6b64\u524d\u4e3b\u6d41\u7684\u7194\u65ad\u7ec4\u4ef6 Hystrix \u56e0\u793e\u533a\u505c\u66f4\u3001\u914d\u7f6e\u590d\u6742\u3001\u6027\u80fd\u74f6\u9888\u7b49\u95ee\u9898\u9010\u6e10\u9000\u51fa\u821e\u53f0，\u800c\u963f\u91cc\u5df4\u5df4\u5f00\u6e90\u7684 Sentinel \u51ed\u501f\u8f7b\u91cf\u3001\u9ad8\u6548\u3001\u529f\u80fd\u5168\u9762\u7684\u4f18\u52bf，\u6210\u4e3a\u5fae\u670d\u52a1\u7a33\u5b9a\u6027\u4fdd\u969c\u7684\u9996\u9009\u65b9\u6848\u3002
\nSentinel \u4ee5\u201c\u6d41\u91cf\u4e3a\u5207\u5165\u70b9\u201d，\u8986\u76d6\u6d41<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[2565,1348,188],"topic":[],"class_list":["post-68746","post","type-post","status-publish","format-standard","hentry","category-server","tag-sentinel","tag-1348","tag-188"],"yoast_head":"\n \u5fae\u670d\u52a1\u7a33\u5b9a\u6027\u5b88\u62a4\u8005\uff1aSentinel \u5168\u9762\u4f7f\u7528\u6307\u5357\uff08\u4ece\u5165\u95e8\u5230\u4f01\u4e1a\u7ea7\u843d\u5730\uff09 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/68746.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5fae\u670d\u52a1\u7a33\u5b9a\u6027\u5b88\u62a4\u8005\uff1aSentinel \u5168\u9762\u4f7f\u7528\u6307\u5357\uff08\u4ece\u5165\u95e8\u5230\u4f01\u4e1a\u7ea7\u843d\u5730\uff09 - 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