{"id":10006350,"date":"2022-08-30T22:00:58","date_gmt":"2022-08-30T14:00:58","guid":{"rendered":"https:\/\/ityet.com\/?p=10006350"},"modified":"2022-08-30T22:00:58","modified_gmt":"2022-08-30T14:00:58","slug":"%e6%97%a0%e9%9c%80%e7%bc%96%e5%86%99%e4%b8%80%e8%a1%8c%e4%bb%a3%e7%a0%81%ef%bc%8c%e5%ae%9e%e7%8e%b0%e4%bb%bb%e4%bd%95%e6%96%b9%e6%b3%95%e7%9a%84%e6%b5%81%e9%87%8f%e9%98%b2%e6%8a%a4%e8%83%bd%e5%8a%9b","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10006350","title":{"rendered":"\u65e0\u9700\u7f16\u5199\u4e00\u884c\u4ee3\u7801\uff0c\u5b9e\u73b0\u4efb\u4f55\u65b9\u6cd5\u7684\u6d41\u91cf\u9632\u62a4\u80fd\u529b"},"content":{"rendered":"

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\"\u56fe\u7247\"
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public class AApplication {<\/p>\n

public static void main(String[] args) {\n    SpringApplication.run(AApplication.class, args);\n}\n\n@Api(value = "\/", tags = {"\u5165\u53e3\u5e94\u7528"})\n@RestController\nclass AController {\n    ...\n@ApiOperation(value = "HTTP \u5168\u94fe\u8def\u7070\u5ea6\u5165\u53e3", tags = {"\u5165\u53e3\u5e94\u7528"})\n    @GetMapping("\/a")\n    public String restA(HttpServletRequest request) {\n        return a(request);\n    }\n    \n    private String a(HttpServletRequest request) {\n        StringBuilder headerSb = new StringBuilder();\n        Enumeration<String> enumeration = request.getHeaderNames();\n        while (enumeration.hasMoreElements()) {\n            String headerName = enumeration.nextElement();\n            Enumeration<String> val = request.getHeaders(headerName);\n            while (val.hasMoreElements()) {\n                String headerVal = val.nextElement();\n                headerSb.append(headerName + ":" + headerVal + ",");\n            }\n        }\n        return "A"+SERVICE_TAG+"[" + inetUtils.findFirstNonLoopbackAddress().getHostAddress() + "]" + " -> " +\n                restTemplate.getForObject("http:\/\/sc-B\/b", String.class);\n    }\n    ...\n}<\/code><\/pre>\n
}\u00a0\u5230\u76ee\u524d\u4e3a\u6b62\u76d1\u63a7\u662f\u770b\u4e0d\u5230 a \u65b9\u6cd5\u7684\uff0c\u6211\u4eec\u53ea\u80fd\u770b\u5230 restA \u7684\u63a5\u53e3\u6216\u8005\u8bf4\u662f GET:\/a \u7684\u76d1\u63a7\u6570\u636e\uff0c\u5e76\u4e14\u53ef\u4ee5\u5bf9\u5176\u914d\u7f6e\u9650\u6d41\u964d\u7ea7\u89c4\u5219\u3002\u00a0
\"\u56fe\u7247\"
\u00a0\u5f00\u6e90\u7684\u65b9\u5f0f\u6211\u4eec\u9700\u8981\u5728\u4ee3\u7801\u4e2d\u589e\u52a0Sentinel\u7684\u4f9d\u8d56\uff0c\u5e76\u4e14\u5bf9 com.alibabacloud.mse.demo.AApplication.AController#a \u65b9\u6cd5\u914d\u7f6e\u6ce8\u89e3\u6216\u8005\u7f16\u7801\u65b9\u5f0f\u589e\u52a0 Sentinel \u80fd\u529b\u00a0\/\/ \u6ce8\u89e3\u65b9\u5f0f\u8fdb\u884c\u57cb\u70b9\uff0c\u6ce8\u89e3\u65b9\u5f0f\u53d7 AOP \u4ee3\u7406\u7684\u8bf8\u591a\u9650\u5236
@SentinelResource(“com.alibabacloud.mse.demo.AApplication.AController:a”)
private String a(HttpServletRequest request) {<\/p>\n
StringBuilder headerSb = new StringBuilder();\nEnumeration<String> enumeration = request.getHeaderNames();\nwhile (enumeration.hasMoreElements()) {\n    String headerName = enumeration.nextElement();\n    Enumeration<String> val = request.getHeaders(headerName);\n    while (val.hasMoreElements()) {\n        String headerVal = val.nextElement();\n        headerSb.append(headerName + ":" + headerVal + ",");\n    }\n}\nreturn "A"+SERVICE_TAG+"[" + inetUtils.findFirstNonLoopbackAddress().getHostAddress() + "]" + " -> " +\n        restTemplate.getForObject("http:\/\/sc-B\/b", String.class);<\/code><\/pre>\n
}<\/p>\n
\/\/ SDK \u65b9\u5f0f\u589e\u52a0\u6d41\u63a7\u964d\u7ea7\u80fd\u529b\uff0c\u9700\u8981\u4fb5\u5165\u4e1a\u52a1\u4ee3\u7801
private String a(HttpServletRequest request) {<\/p>\n
Entry entry = null;\ntry {\n    entry = SphU.entry("HelloWorld");\n    \n    StringBuilder headerSb = new StringBuilder();\n    Enumeration<String> enumeration = request.getHeaderNames();\n    while (enumeration.hasMoreElements()) {\n        String headerName = enumeration.nextElement();\n        Enumeration<String> val = request.getHeaders(headerName);\n        while (val.hasMoreElements()) {\n            String headerVal = val.nextElement();\n            headerSb.append(headerName + ":" + headerVal + ",");\n        }\n    }\n    return "A"+SERVICE_TAG+"[" + inetUtils.findFirstNonLoopbackAddress().getHostAddress() + "]" + " -> " +\n            restTemplate.getForObject("http:\/\/sc-B\/b", String.class);\n} catch (BlockException ex) {\n  System.err.println("blocked!");\n} finally {\n    if (entry != null) {\n        entry.exit();\n    }\n}<\/code><\/pre>\n
}\u00a0\u9700\u8981\u7f16\u7801\u90a3\u5c31\u81ea\u7136\u4f1a\u6709\u8bb8\u591a\u7684\u5f0a\u7aef\uff0c\u8981\u589e\u52a0\u4f9d\u8d56\u8981\u6539\u4ee3\u7801\uff0c\u8981\u91cd\u65b0\u53d1\u5e03\uff0c\u96be\u4ee5\u505a\u5230\u5373\u4e0a\u5373\u4e0b…\u5230\u5904\u90fd\u662f\u6210\u672c\u3002\u00a0\u90a3\u4e48\u6211\u4eec\u5982\u4f55\u53ef\u4ee5\u4e0d\u7f16\u5199\u4e00\u884c\u4ee3\u7801\uff0c\u5c31\u53ef\u4ee5\u505a\u5230\u5bf9 com.alibabacloud.mse.demo.AApplication.AController#a \u7684\u9650\u6d41\u964d\u7ea7\u80fd\u529b\u5462\uff1f\u00a0\u914d\u7f6e\u8fd0\u884c\u65f6\u767d\u5c4f\u5316\u89c4\u5219\u00a0\u914d\u7f6e\u8fd0\u884c\u65f6\u767d\u5c4f\u5316\u89c4\u5219\uff0c\u5e76\u9009\u62e9\u5f53\u524d\u5e94\u7528\u7684\u81ea\u5b9a\u4e49\u57cb\u70b9\u7c7b\u578b\u7684\u63a5\u53e3\uff0c\u5e76\u586b\u5165\u7c7b\u4e0e\u65b9\u6cd5\u3002\u00a0
\"\u56fe\u7247\"
\u00a0\u5f53\u7136\u53ef\u4ee5\u770b\u5230\uff0c\u6211\u4eec\u767d\u5c4f\u5316\u89c4\u5219\u80fd\u529b\u4e0d\u4ec5\u4ec5\u652f\u6301\u52a8\u6001\u9650\u6d41\u964d\u7ea7\uff0c\u8fd8\u652f\u6301\u4efb\u610f\u70b9\u4f4d\u7684\u8bbf\u95ee\u65e5\u5fd7\u4ee5\u53ca\u8bf7\u6c42\u4e0a\u4e0b\u6587\u7684\u6536\u96c6\u00a0
\"\u56fe\u7247\"
\u00a0\u89c2\u5bdf\u5230\u6307\u5b9a\u65b9\u6cd5\u7684\u76d1\u63a7\u6570\u636e\u00a0\u6211\u4eec\u5728\u5e94\u7528\u6cbb\u7406\u627e\u5230\u76ee\u6807\u5e94\u7528\uff0c\u5728\u63a5\u53e3\u76d1\u63a7 > \u81ea\u5b9a\u4e49\u57cb\u70b9\u4e2d\u770b\u5230\u6307\u5b9a\u65b9\u6cd5com.alibabacloud.mse.demo.AApplication.AController#a \u7684\u76d1\u63a7\u6570\u636e\u00a0
\"\u56fe\u7247\"
\u00a0\u914d\u7f6e\u6d41\u63a7\u89c4\u5219\u00a0\u6211\u4eec\u53ef\u4ee5\u70b9\u51fb\u63a5\u53e3\u6982\u89c8\u53f3\u4e0a\u89d2\u7684\u201c\u65b0\u589e\u9632\u62a4\u89c4\u5219\u201d\u6309\u94ae\uff0c\u6dfb\u52a0\u4e00\u6761\u6d41\u63a7\u89c4\u5219\uff1a\u00a0
\"\u56fe\u7247\"
\u00a0\u6211\u4eec\u53ef\u4ee5\u914d\u7f6e\u6700\u7b80\u5355\u7684 QPS \u6a21\u5f0f\u7684\u6d41\u63a7\u89c4\u5219\uff0c\u6bd4\u5982\u4e0a\u9762\u7684\u4f8b\u5b50\u5373\u9650\u5236\u8be5\u63a5\u53e3\u6bcf\u79d2\u5355\u673a\u8c03\u7528\u91cf\u4e0d\u8d85\u8fc7 1 \u6b21\u3002\u00a0\u914d\u7f6e\u89c4\u5219\u540e\uff0c\u7a0d\u7b49\u7247\u523b\u5373\u53ef\u5728\u76d1\u63a7\u9875\u9762\u770b\u5230\u9650\u6d41\u6548\u679c\uff1a\u00a0
\"\u56fe\u7247\"
\u00a0\u88ab\u62d2\u7edd\u7684\u6d41\u91cf\u4e5f\u4f1a\u8fd4\u56de\u9519\u8bef\u4fe1\u606f\u3002MSE \u81ea\u5e26\u7684\u6846\u67b6\u57cb\u70b9\u90fd\u6709\u9ed8\u8ba4\u7684\u6d41\u63a7\u5904\u7406\u903b\u8f91\uff0c\u5982 Web \u63a5\u53e3\u88ab\u9650\u6d41\u540e\u8fd4\u56de 429 Too Many Requests\uff0cDAO \u5c42\u3001java \u65b9\u6cd5\u88ab\u9650\u6d41\u540e\u629b\u51fa\u5f02\u5e38\u7b49\u3002\u00a0\u603b\u7ed3\u00a0\u6211\u4eec\u5c06\u8fd0\u884c\u65f6\u767d\u5c4f\u5316\u80fd\u529b\u62bd\u8c61\u4e3a\u5982\u4e0b\u89c4\u5219\uff1aWhiteScreenRule = Taget + Action\u00a0
\"\u56fe\u7247\"
\u00a0Target:\u00a0ResourceTarget: \u76ee\u6807\u63a5\u53e3\uff0c\u652f\u6301 Web\u3001Rpc\u3001SQL \u4ee5\u53ca\u4efb\u610f\u7684\u81ea\u5b9a\u4e49\u65b9\u6cd5WorkloadTarget: \u76ee\u6807\u5b9e\u4f8b\uff0c\u53ef\u4ee5\u9009\u62e9\u6240\u6709\u673a\u5668\u6216\u6307\u5b9a\u673a\u5668 IPTrafficCondition: \u662f\u5426\u4ec5\u9488\u5bf9\u5f02\u5e38\u3001\u6162\u8c03\u7528\u3001\u5168\u94fe\u8def\u7070\u5ea6\u6807\u7b7e\u00a0\u00a0Action:\u00a0\u76f8\u5173\u4e0a\u4e0b\u6587\u8bca\u65ad\u4fe1\u606f\u7684\u6536\u96c6\uff0c\u53c2\u6570\u3001\u8fd4\u56de\u503c\u3001\u7ebf\u7a0b\u4e0a\u4e0b\u6587\u3001Target \u5bf9\u8c61\u3001\u7c7b\u52a0\u8f7d\u5668\u4fe1\u606f\u7b49\u540e\u7eed\u94fe\u8def\u662f\u5426\u65e5\u5fd7\u6253\u5370\u8fdb\u884c\u9650\u6d41\u964d\u7ea7\u6307\u5b9a\u6d41\u91cf\u8fdb\u884c\u6253\u6807\u67d3\u8272\uff08\u89c4\u5212\u4e2d\uff09\u00a0\u00a0\u8fd1\u671f MSE \u5c06\u63a8\u51fa\u57fa\u4e8e\u4e0a\u8ff0\u89c4\u5219\u7684\u6a21\u578b\u7ed3\u5408\u52a8\u6001 Enhance \u80fd\u529b\u7684\u65e5\u5fd7\u6cbb\u7406\uff0c\u6211\u4eec\u4e0d\u4ec5\u4ec5\u6709\u57fa\u4e8e\u52a8\u6001 Enhance \u80fd\u529b\u7684\u4efb\u610f\u70b9\u4f4d\u7684\u9650\u6d41\u964d\u7ea7\uff0c\u8fd8\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u6d1e\u5bdf\u5168\u94fe\u8def\u6d41\u91cf\u8fd0\u884c\u7684\u884c\u4e3a\uff0c\u5e76\u505a\u51fa\u5b9e\u65f6\u7684\u6cbb\u7406\u4e0e\u4fdd\u62a4\u3002\u00a0
\"\u56fe\u7247\"
\u00a0MSE Sentinel \u4e0d\u4ec5\u5728\u963f\u91cc\u5185\u90e8\u6dd8\u5b9d\u3001\u5929\u732b\u7b49\u7535\u5546\u9886\u57df\u6709\u7740\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u5728\u4e92\u8054\u7f51\u91d1\u878d\u3001\u5728\u7ebf\u6559\u80b2\u3001\u6e38\u620f\u3001\u76f4\u64ad\u884c\u4e1a\u548c\u5176\u4ed6\u5927\u578b\u653f\u592e\u4f01\u884c\u4e1a\u4e5f\u6709\u7740\u5927\u91cf\u7684\u5b9e\u8df5\u3002\u6709\u4e86\u9488\u5bf9\u4efb\u4f55\u65b9\u6cd5\u90fd\u53ef\u4ee5\u505a\u5230\u9650\u6d41\u964d\u7ea7\u7684\u80fd\u529b\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u5feb\u901f\u8d4b\u4e88\u4efb\u610f\u4e00\u4e2a\u5fae\u670d\u52a1\u7cfb\u7edf\u5177\u5907\u6d41\u91cf\u9632\u62a4\u7684\u80fd\u529b\uff0c\u8ba9\u6211\u4eec\u6709\u66f4\u591a\u7684\u65f6\u95f4\u4e13\u6ce8\u4e8e\u4e1a\u52a1\u7684\u5feb\u901f\u53d1\u5c55\uff0c\u5173\u4e8e\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u5c31\u653e\u5fc3\u5730\u4ea4\u7ed9 MSE \uff0c\u8ba9\u4e13\u4e1a\u7684\u56e2\u961f\u505a\u4e13\u4e1a\u7684\u4e8b\u60c5\u3002\u00a0MSE \u4e91\u539f\u751f\u7f51\u5173\u9884\u4ed8\u8d39\u3001MSE \u6ce8\u518c\u914d\u7f6e\u9884\u4ed8\u8d39\u9996\u8d2d 8 \u6298\uff0c\u9996\u8d2d 1 \u5e74\u53ca\u4ee5\u4e0a 7 \u6298\u3002\u70b9\u51fb\u6b64\u5904\uff0c\u67e5\u770b\u66f4\u591a\u8be6\u60c5\u539f\u6587\u94fe\u63a5\uff1ahttps:\/\/click.aliyun.com\/m\/10…<\/a>\u672c\u6587\u4e3a\u963f\u91cc\u4e91\u539f\u521b\u5185\u5bb9\uff0c\u672a\u7ecf\u5141\u8bb8\u4e0d\u5f97\u8f6c\u8f7d\u3002<\/p>\n
https:\/\/segmentfault.com\/a\/1190000042405157<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
\u7b80\u4ecb\uff1a\u00a0\u6709\u4e86\u9488\u5bf9\u4efb\u4f55\u65b9\u6cd5\u90fd\u53ef\u4ee5\u505a\u5230\u9650\u6d41\u964d\u7ea7\u7684\u80fd\u529b\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u5feb\u901f\u8d4b\u4e88\u4efb\u610f\u4e00\u4e2a\u5fae\u670d\u52a1\u7cfb\u7edf\u5177\u5907\u6d41\u91cf\u9632\u62a4\u7684\u80fd\u529b\uff0c\u8ba9\u6211 […]<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[],"tags":[],"class_list":["post-10006350","post","type-post","status-publish","format-standard","hentry"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10006350","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"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10006350"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10006350\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10006350"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10006350"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10006350"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}