{"id":1948,"date":"2023-04-01T10:11:55","date_gmt":"2023-04-01T02:11:55","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=1948"},"modified":"2023-04-22T08:41:08","modified_gmt":"2023-04-22T00:41:08","slug":"distributed-flow-limiting-in-spring-cloud-gateway","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/04\/01\/distributed-flow-limiting-in-spring-cloud-gateway\/","title":{"rendered":"Spring Cloud Gateway\u4e2d\u7684\u5206\u5e03\u5f0f\u9650\u6d41"},"content":{"rendered":"<p>\u6211\u4eec\u5728\u5f00\u53d1\u7cfb\u7edf\u7684\u65f6\u5019\u53ef\u80fd\u4f1a\u6709\u5bf9\u7cfb\u7edf\u8fdb\u884c\u9650\u6d41\u7684\u9700\u6c42\uff0cSpring Cloud Gateway\u6709\u81ea\u5e26\u9650\u6d41\u7684\u65b9\u6848\uff0cSpring Cloud Gateway\u4e2d\u63d0\u4f9b\u4e86\u4e00\u4e2a<code>RequestRateLimiterGatewayFilterFactory<\/code>\u3002\u8fd9\u79cd\u9650\u6d41\u65b9\u5f0f\u4f7f\u7528\u5230\u4e86Redis\uff0c \u5148\u6dfb\u52a0Redis\u7684\u4f9d\u8d56\uff1a<\/p>\n<p><!-- more --><\/p>\n<pre><code class=\"language-xml\">&lt;dependencies&gt;\n    &lt;!-- Spring Cloud Gateway\u7684\u4f9d\u8d56--&gt;\n    &lt;dependency&gt;\n        &lt;groupId&gt;org.springframework.cloud&lt;\/groupId&gt;\n        &lt;artifactId&gt;spring-cloud-starter-gateway&lt;\/artifactId&gt;\n    &lt;\/dependency&gt;\n\n    &lt;dependency&gt;\n        &lt;groupId&gt;org.springframework.boot&lt;\/groupId&gt;\n        &lt;artifactId&gt;spring-boot-starter-data-redis-reactive&lt;\/artifactId&gt;\n    &lt;\/dependency&gt;\n&lt;\/dependencies&gt;<\/code><\/pre>\n<p>\u914d\u7f6e\u5982\u4e0b\uff1a<\/p>\n<pre><code class=\"language-java\">import org.springframework.cloud.gateway.filter.ratelimit.KeyResolver;\nimport org.springframework.web.server.ServerWebExchange;\nimport reactor.core.publisher.Mono;\n\npublic class RemoteAddrKeyResolver implements KeyResolver {\n\n    public static final String BEAN_NAME = &quot;remoteAddrKeyResolver&quot;;\n\n    @Override\n    public Mono&lt;String&gt; resolve(ServerWebExchange exchange) {\n        return Mono.just(exchange.getRequest().getRemoteAddress().getAddress().getHostAddress());\n    }\n\n}<\/code><\/pre>\n<pre><code class=\"language-java\">@Configuration\npublic class RemoteKeyResolver {\n\n    @Bean(name = RemoteAddrKeyResolver.BEAN_NAME)\n    public RemoteAddrKeyResolver remoteAddrKeyResolver() {\n        return new RemoteAddrKeyResolver();\n    }\n}<\/code><\/pre>\n<p>\u5728\u6b64\u6211\u4eec\u662f\u6839\u636eip\u5730\u5740\u9650\u6d41\u7684\uff1a<\/p>\n<pre><code>Mono&lt;String&gt; just = Mono.just(exchange.getRequest().getRemoteAddress().getAddress().getHostAddress());<\/code><\/pre>\n<p>application.yml\u914d\u7f6e\u6587\u4ef6\u914d\u7f6e\u5982\u4e0b\uff1a<\/p>\n<pre><code class=\"language-yml\">spring:\n  application:\n    name: ok-cloud-gateway\n  redis:\n      host: localhost\n      port: 6379\n  cloud:\n    gateway:\n      routes:\n        - id: rateLimit_route\n          uri: http:\/\/localhost:8000\/hello\/rateLimit\n          order: 0\n          predicates:\n            - Path=\/test\/rateLimit\n          filters:\n            #filter\u540d\u79f0\u5fc5\u987b\u662fRequestRateLimiter\n            - name: RequestRateLimiter\n              args:\n                #\u4f7f\u7528SpEL\u6309\u540d\u79f0\u5f15\u7528bean\n                key-resolver: &quot;#{@remoteAddrKeyResolver}&quot;\n                #\u5141\u8bb8\u7528\u6237\u6bcf\u79d2\u5904\u7406\u591a\u5c11\u4e2a\u8bf7\u6c42\n                redis-rate-limiter.replenishRate: 1\n                #\u4ee4\u724c\u6876\u7684\u5bb9\u91cf\uff0c\u5141\u8bb8\u5728\u4e00\u79d2\u949f\u5185\u5b8c\u6210\u7684\u6700\u5927\u8bf7\u6c42\u6570\n                redis-rate-limiter.burstCapacity: 5<\/code><\/pre>\n<pre><code class=\"language-yml\">spring:\n  application:\n    name: gateway-service\n#  redis:\n#    database: 0\n#    host: localhost\n#    port: 6379\n#    password:\n#    timeout: 1000ms\n#    lettuce:\n#      pool:\n#        max-active: 8\n#        max-idle: 8\n#        min-idle: 1\n#        max-wait: 1000ms\n#  cache:\n#    type: REDIS\n  cloud:\n    gateway:\n      discovery:\n        locator:\n          enabled: true\n      routes:\n        - id: order\n          uri: lb:\/\/order-service\n          predicates:\n          - Path=\/api\/order-service\/**\n          filters:\n          - StripPrefix=1\n          - name: RequestRateLimiter\n            args:\n              key-resolver: &#039;#{@remoteAddrKeyResolver}&#039;\n              redis-rate-limiter.replenishRate: 1\n              redis-rate-limiter.burstCapacity: 2<\/code><\/pre>\n<p>\u4e0a\u9762\u8d34\u51fa\u7684\u662f\u5b8c\u6574\u7684Spring Cloud Gateway\u7684\u914d\u7f6e\uff0c\u4e3b\u8981\u914d\u7f6e\u4e3a<code>filters<\/code>\u4e0b\u7684<code>RequestRateLimiter<\/code>\uff0c<code>key-resolver<\/code>\u8868\u793a\u4f7f\u7528\u540d\u4e3a<code>remoteAddrKeyResolver<\/code>\u7684\u9650\u6d41\u914d\u7f6e\u914d\u7f6e\u7c7b\uff0c\u6b64\u9650\u6d41\u65b9\u5f0f\u91c7\u7528\u7684\u662f\u4ee4\u724c\u6876\u7b97\u6cd5\u7684\u9650\u6d41\u65b9\u5f0f<\/p>\n<ul>\n<li><code>redis-rate-limiter.replenishRate<\/code>\uff1a\u4ee4\u724c\u6876\u6bcf\u79d2\u586b\u5145\u5e73\u5747\u901f\u7387<\/li>\n<li><code>redis-rate-limiter.burstCapacity<\/code>: \u4ee4\u724c\u6876\u7684\u603b\u5bb9\u91cf<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u4eec\u5728\u5f00\u53d1\u7cfb\u7edf\u7684\u65f6\u5019\u53ef\u80fd\u4f1a\u6709\u5bf9\u7cfb\u7edf\u8fdb\u884c\u9650\u6d41\u7684\u9700\u6c42\uff0cSpring Cloud Gateway\u6709\u81ea\u5e26\u9650\u6d41\u7684\u65b9\u6848\uff0cS [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42],"tags":[439],"class_list":["post-1948","post","type-post","status-publish","format-standard","hentry","category-spring-cloud","tag-spring-cloud-gateway"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1948","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1948"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1948\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1948"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1948"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1948"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}