{"id":1374,"date":"2023-05-19T22:16:50","date_gmt":"2023-05-19T14:16:50","guid":{"rendered":"https:\/\/fireinsect.top\/?p=1374"},"modified":"2023-05-22T16:17:50","modified_gmt":"2023-05-22T08:17:50","slug":"springcloud%e5%9f%ba%e7%a1%80%ef%bc%882%ef%bc%89-%e7%bd%91%e5%85%b3gateway","status":"publish","type":"post","link":"https:\/\/fireinsect.top\/index.php\/2023\/05\/19\/springcloud%e5%9f%ba%e7%a1%80%ef%bc%882%ef%bc%89-%e7%bd%91%e5%85%b3gateway\/","title":{"rendered":"SpringCloud\u57fa\u7840\uff082\uff09&#8211;\u7f51\u5173Gateway"},"content":{"rendered":"\n<p>\u5728\u5b66\u4e60\u4e86Eureka\u4e4b\u540e\uff0c\u6211\u4eec\u5e94\u8be5\u5b66\u4e60\u7684\u670d\u52a1\u964d\u7ea7\u4e0e\u7194\u65ad\uff0c\u4f46\u56e0\u4e3aSpringCloud\u5df2\u7ecf\u505c\u6b62\u7ef4\u62a4Hystrix\uff0c\u56e0\u6b64\u628a\u8fd9\u90e8\u5206\u5b66\u4e60\u5ef6\u540e\u5230SpringCloud Alibaba\u4e2d\u3002\u76f4\u63a5\u8fdb\u884cGateway\u7f51\u5173\u3002<\/p>\n\n\n\n<!--more-->\n\n\n\n<p>\u964d\u7ea7\u4e0e\u7194\u65ad\u673a\u7968~<\/p>\n\n\n\n<p>\u5728\u6211\u4eec\u751f\u6d3b\u4e2d\uff0c\u6211\u4eec\u7684\u5c40\u57df\u7f51\u8bbe\u5907\uff0c\u65e0\u6cd5\u88ab\u4e92\u8054\u7f51\u4e0a\u7684\u5176\u4ed6\u8bbe\u5907\u76f4\u63a5\u8bbf\u95ee\uff0c\u80af\u5b9a\u662f\u80fd\u591f\u4fdd\u8bc1\u5230\u5b89\u5168\u6027\u7684\u3002\u5e76\u4e92\u8054\u7f51\u53d1\u9001\u8fc7\u6765\u7684\u6570\u636e\uff0c\u9700\u8981\u7ecf\u8fc7\u8def\u7531\u5668\u8fdb\u884c\u89e3\u6790\uff0c\u8bc6\u522b\u5230\u5e95\u662f\u54ea\u4e00\u4e2a\u8bbe\u5907\u7684\u6570\u636e\u5305\uff0c\u7136\u540e\u518d\u53d1\u9001\u7ed9\u5bf9\u5e94\u7684\u8bbe\u5907\u3002\u8def\u7531\u5668\u4e0b\u7684\u7f51\u7edc\u662f\u5185\u7f51\uff0c\u800c\u4e92\u8054\u7f51\u90a3\u4e00\u7aef\u662f\u5916\u7f51\u3002<\/p>\n\n\n\n<p>\u800c\u6211\u4eec\u7684\u5fae\u670d\u52a1\u4e5f\u7c7b\u4f3c\uff0c\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u5e76\u4e0d\u662f\u6240\u6709\u7684\u5fae\u670d\u52a1\u90fd\u9700\u8981\u76f4\u63a5\u66b4\u9732\u7ed9\u5916\u90e8\u8c03\u7528\uff0c\u8fd9\u65f6\u6211\u4eec\u5c31\u53ef\u4ee5\u4f7f\u7528\u8def\u7531\u673a\u5236\uff0c\u6dfb\u52a0\u4e00\u5c42\u9632\u62a4\uff0c\u8ba9\u6240\u6709\u7684\u8bf7\u6c42\u5168\u90e8\u901a\u8fc7\u8def\u7531\u6765\u8f6c\u53d1\u5230\u5404\u4e2a\u5fae\u670d\u52a1\uff0c\u5e76\u4e14\u8f6c\u53d1\u7ed9\u591a\u4e2a\u76f8\u540c\u5fae\u670d\u52a1\u5b9e\u4f8b\u4e5f\u53ef\u4ee5\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"328\" src=\"https:\/\/i1.wp.com\/fireinsect.top\/wp-content\/uploads\/2023\/05\/image-5.png?resize=1024%2C328&#038;ssl=1\" alt=\"\" class=\"wp-image-1375\" srcset=\"https:\/\/i1.wp.com\/fireinsect.top\/wp-content\/uploads\/2023\/05\/image-5.png?resize=1024%2C328&amp;ssl=1 1024w, https:\/\/i1.wp.com\/fireinsect.top\/wp-content\/uploads\/2023\/05\/image-5.png?resize=300%2C96&amp;ssl=1 300w, https:\/\/i1.wp.com\/fireinsect.top\/wp-content\/uploads\/2023\/05\/image-5.png?resize=768%2C246&amp;ssl=1 768w, https:\/\/i1.wp.com\/fireinsect.top\/wp-content\/uploads\/2023\/05\/image-5.png?resize=1536%2C492&amp;ssl=1 1536w, https:\/\/i1.wp.com\/fireinsect.top\/wp-content\/uploads\/2023\/05\/image-5.png?w=1942&amp;ssl=1 1942w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-recalc-dims=\"1\" \/><\/figure>\n\n\n\n<p>\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2aGateway\u9879\u76ee\uff0c\u5e76\u521b\u5efa\u542f\u52a8\u7c7b\uff0c\u6dfb\u52a0\u4f9d\u8d56<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"xml\" class=\"language-xml\">&lt;dependencies&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    &lt;dependency&gt;\n        &lt;groupId&gt;org.springframework.cloud&lt;\/groupId&gt;\n        &lt;artifactId&gt;spring-cloud-starter-netflix-eureka-client&lt;\/artifactId&gt;\n    &lt;\/dependency&gt;\n&lt;\/dependencies&gt;<\/code><\/pre>\n\n\n\n<p>\u7b2c\u4e00\u4e2a\u4f9d\u8d56\u5c31\u662f\u7f51\u5173\u7684\u4f9d\u8d56\uff0c\u800c\u7b2c\u4e8c\u4e2a\u5219\u8ddf\u5176\u4ed6\u5fae\u670d\u52a1\u4e00\u6837\uff0c\u9700\u8981\u6ce8\u518c\u5230Eureka\u624d\u80fd\u751f\u6548<\/p>\n\n\n\n<p>\u63a5\u4e0b\u6765\u521b\u5efa\u5e76\u4fee\u6539application\u6587\u4ef6\u4f7f\u5b83\u6ce8\u518c\u5230\u6ce8\u518c\u4e2d\u5fc3\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"yaml\" class=\"language-yaml\">server:\n  port: 8500\neureka:\n  client:\n    service-url:\n      defaultZone: http:\/\/localhost:8188\/eureka, http:\/\/localhost:8288\/eureka\nspring:\n  application:\n    name: gateway<\/code><\/pre>\n\n\n\n<p>\u63a5\u4e0b\u6765\u6211\u4eec\u9700\u8981\u5bf9\u8def\u7531\u8fdb\u884c\u914d\u7f6e\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"yaml\" class=\"language-yaml\">spring:\n  cloud:\n    gateway:\n        # \u914d\u7f6e\u8def\u7531\uff0c\u6ce8\u610f\u8fd9\u91cc\u662f\u4e2a\u5217\u8868\uff0c\u6bcf\u4e00\u9879\u90fd\u5305\u542b\u4e86\u5f88\u591a\u4fe1\u606f\n      routes:\n        - id: borrow-service   # \u8def\u7531\u540d\u79f0\n          uri: lb:\/\/borrowservice  # \u8def\u7531\u7684\u5730\u5740\uff0clb\u8868\u793a\u4f7f\u7528\u8d1f\u8f7d\u5747\u8861\u5230\u5fae\u670d\u52a1\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528http\u6b63\u5e38\u8f6c\u53d1\n          predicates: # \u8def\u7531\u89c4\u5219\uff0c\u65ad\u8a00\u4ec0\u4e48\u8bf7\u6c42\u4f1a\u88ab\u8def\u7531\n          - Path=\/borrow\/**  # \u53ea\u8981\u662f\u8bbf\u95ee\u7684\u8fd9\u4e2a\u8def\u5f84\uff0c\u4e00\u5f8b\u90fd\u88ab\u8def\u7531\u5230\u4e0a\u9762\u6307\u5b9a\u7684\u670d\u52a1<\/code><\/pre>\n\n\n\n<p>\u901a\u8fc7\u8fd9\u6837\u7684\u914d\u7f6e\u4e4b\u540e\uff0c\u6211\u4eec\u53ea\u8981\u662f\u8bbf\u95eePath\u7684\u8def\u5f84\u5c31\u4f1a\u88ab\u8def\u7531\u5230\u6307\u5b9a\u670d\u52a1\u4e0a\u3002<\/p>\n\n\n\n<p>\u9664\u4e86\u6839\u636e\u8def\u5f84\u8fdb\u884c\u8def\u7531\uff0cGateway\u63d0\u4f9b\u4e86\u522b\u7684\u8def\u7531\u65b9\u5f0f\uff0c\u5177\u4f53\u67e5\u770b <a href=\"https:\/\/docs.spring.io\/spring-cloud-gateway\/docs\/current\/reference\/html\/#gateway-request-predicates-factories\" target=\"_blank\" rel=\"noreferrer noopener\">\u8def\u7531\u6587\u6863<\/a><\/p>\n\n\n\n<p>\u914d\u7f6e\u4e4b\u540e\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u76f4\u63a5\u901a\u8fc7\u8def\u7531\u7684\u7aef\u53e3\u6765\u8bbf\u95ee\u670d\u52a1\u4e86\u3002<\/p>\n\n\n\n<div style=\"height:11px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-large-font-size\">\u8def\u7531\u8fc7\u6ee4\u5668<\/p>\n\n\n\n<p>\u4e0a\u9762\u6211\u4eec\u5b66\u4e60\u4e86Gateway\u8def\u7531\u7b56\u7565\uff0c\u800cGateway\u4e5f\u5305\u542b\u4e86\u5f88\u591a\u5185\u7f6e\u7684\u8def\u7531\u8fc7\u6ee4\u5668\u5de5\u5382\uff0c\u8def\u7531\u8fc7\u6ee4\u5668\u652f\u6301\u4ee5\u67d0\u79cd\u65b9\u5f0f\u4fee\u6539\u4f20\u5165\u7684 HTTP \u8bf7\u6c42\u6216\u4f20\u51fa\u7684 HTTP \u54cd\u5e94\uff0c\u8def\u7531\u8fc7\u6ee4\u5668\u7684\u8303\u56f4\u662f\u67d0\u4e00\u4e2a\u8def\u7531\u3002<\/p>\n\n\n\n<p>\u6bd4\u5982\uff0c\u6211\u4eec\u5e0c\u671b\u5728\u8bf7\u6c42\u5230\u8fbe\u65f6\uff0c\u5728\u8bf7\u6c42\u5934\u4e2d\u6dfb\u52a0\u4e00\u4e9b\u4fe1\u606f\u5728\u8f6c\u53d1\u7ed9\u6211\u4eec\u7684\u670d\u52a1\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u8def\u7531\u8fc7\u6ee4\u5668\u6765\u5b8c\u6210\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"yaml\" class=\"language-yaml\">spring:\r\n  application:\r\n    name: gateway\r\n  cloud:\r\n    gateway:\r\n      routes:\r\n      - id: borrow-service\r\n        uri: lb:\/\/borrowservice\r\n        predicates:\r\n        - Path=\/borrow\/**\r\n      # \u7ee7\u7eed\u6dfb\u52a0\u65b0\u7684\u8def\u7531\u914d\u7f6e\uff0c\u8fd9\u91cc\u5c31\u4ee5\u4e66\u7c4d\u7ba1\u7406\u670d\u52a1\u4e3a\u4f8b\r\n      # \u6ce8\u610f-\u8981\u5bf9\u9f50routes:\r\n      - id: book-service\r\n        uri: lb:\/\/bookservice\r\n        predicates:\r\n        - Path=\/book\/**\r\n        filters:   # \u6dfb\u52a0\u8fc7\u6ee4\u5668\r\n        - AddRequestHeader=Test, HelloWorld!\r\n        # AddRequestHeader \u5c31\u662f\u6dfb\u52a0\u8bf7\u6c42\u5934\u4fe1\u606f\uff0c\u5176\u4ed6\u5de5\u5382\u8bf7\u67e5\u9605\u5b98\u7f51<\/code><\/pre>\n\n\n\n<p>\u8fd9\u6837\u6211\u4eec\u5c31\u53ef\u4ee5\u5728\u670d\u52a1\u7684request\u83b7\u53d6\u5230header\u4e86\uff0c\u5982\u8fd9\u91cc\u6211\u4eec\u901a\u8fc7 <code>request.getHeader(\"Test\")<\/code>\u83b7\u53d6\u5230HelloWorld\uff01<\/p>\n\n\n\n<p>\u9664\u4e86\u9488\u5bf9\u67d0\u4e2a\u8def\u7531\u914d\u7f6e\u8fc7\u6ee4\u5668\u4e4b\u5916\uff0c\u6211\u4eec\u53ef\u4ee5\u81ea\u5b9a\u4e49\u5168\u5c40\u8fc7\u6ee4\u5668\uff0c\u5b83\u80fd\u591f\u4f5c\u7528\u4e8e\u5168\u5c40\u3002\u9700\u8981\u6211\u4eec\u901a\u8fc7\u4ee3\u7801\u5f62\u5f0f\u7f16\u5199\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"java\" class=\"language-java\">@Override\r\npublic Mono&lt;Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {\r\n    \/\/\u5148\u83b7\u53d6ServerHttpRequest\u5bf9\u8c61\uff0c\u6ce8\u610f\u4e0d\u662fHttpServletRequest\r\n    ServerHttpRequest request = exchange.getRequest();\r\n    \/\/\u6253\u5370\u4e00\u4e0b\u6240\u6709\u7684\u8bf7\u6c42\u53c2\u6570\r\n    System.out.println(request.getQueryParams());\r\n    \/\/\u5224\u65ad\u662f\u5426\u5305\u542btest\u53c2\u6570\uff0c\u4e14\u53c2\u6570\u503c\u4e3a1\r\n    List&lt;String> value = request.getQueryParams().get(\"test\");\r\n    if(value != null &amp;&amp; value.contains(\"1\")) {\r\n        \/\/\u5c06ServerWebExchange\u5411\u8fc7\u6ee4\u94fe\u7684\u4e0b\u4e00\u7ea7\u4f20\u9012\uff08\u8ddfJavaWeb\u4e2d\u4ecb\u7ecd\u7684\u8fc7\u6ee4\u5668\u5176\u5b9e\u662f\u5dee\u4e0d\u591a\u7684\uff09\r\n        return chain.filter(exchange);\r\n    }else {\r\n        \/\/\u76f4\u63a5\u5728\u8fd9\u91cc\u4e0d\u518d\u5411\u4e0b\u4f20\u9012\uff0c\u7136\u540e\u8fd4\u56de\u54cd\u5e94\r\n        return exchange.getResponse().setComplete();\r\n    }\r\n}<\/code><\/pre>\n\n\n\n<p>\u4e0a\u9762\u7684\u793a\u4f8b\u4e3a\u5b9e\u73b0\u62e6\u622a\u6ca1\u6709\u6307\u5b9a\u8bf7\u6c42\u53c2\u6570\uff08test\uff09\u7684\u8bf7\u6c42.<\/p>\n\n\n\n<p>\u8fc7\u6ee4\u5668\u80fd\u6709\u5f88\u591a\u4e2a\uff0c\u6240\u4ee5\u6211\u4eec\u80fd\u624b\u52a8\u6307\u5b9a\u8fc7\u6ee4\u5668\u4e4b\u95f4\u7684\u987a\u5e8f\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u9700\u8981\u5728\u8fc7\u6ee4\u5668\u4e0a\u5b9e\u73b0Ordered\u63a5\u53e3\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"java\" class=\"language-java\">@Component\r\npublic class TestFilter implements GlobalFilter, Ordered {   \/\/\u5b9e\u73b0Ordered\u63a5\u53e3\r\n  \r\n    @Override\r\n    public int getOrder() {\r\n        return 0;\r\n    }<\/code><\/pre>\n\n\n\n<p>\u901a\u8fc7getOrder\u7684\u503c\u6765\u51b3\u5b9a\u987a\u5e8f\uff0c\u503c\u8d8a\u5c0f\uff0c\u4f18\u5148\u7ea7\u8d8a\u9ad8\uff0c\u5e76\u4e14\u65e0\u8bba\u662f\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u7f16\u5199\u7684\u5355\u4e2a\u8def\u7531\u8fc7\u6ee4\u5668\u8fd8\u662f\u5168\u5c40\u8def\u7531\u8fc7\u6ee4\u5668\uff0c\u90fd\u4f1a\u53d7\u5230Order\u503c\u5f71\u54cd\uff08\u5355\u4e2a\u8def\u7531\u7684\u8fc7\u6ee4\u5668Order\u503c\u6309\u4ece\u4e0a\u5f80\u4e0b\u7684\u987a\u5e8f\u4ece1\u5f00\u59cb\u9012\u589e\uff09\uff0c\u6700\u7ec8\u662f\u6309\u7167Order\u503c\u51b3\u5b9a\u54ea\u4e2a\u8fc7\u6ee4\u5668\u4f18\u5148\u6267\u884c\uff0c\u5f53Order\u503c\u4e00\u6837\u65f6 \u5168\u5c40\u8def\u7531\u8fc7\u6ee4\u5668\u6267\u884c\u4f18\u4e8e\u5355\u72ec\u7684\u8def\u7531\u8fc7\u6ee4\u5668\u6267\u884c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u5b66\u4e60\u4e86Eureka\u4e4b\u540e\uff0c\u6211\u4eec\u5e94\u8be5\u5b66\u4e60\u7684\u670d\u52a1\u964d\u7ea7\u4e0e\u7194\u65ad\uff0c\u4f46\u56e0\u4e3aSpringCloud\u5df2\u7ecf\u505c\u6b62\u7ef4\u62a4Hystrix [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","footnotes":""},"categories":[6,1],"tags":[],"class_list":["post-1374","post","type-post","status-publish","format-standard","hentry","category-6","category-wcd"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/fireinsect.top\/index.php\/wp-json\/wp\/v2\/posts\/1374"}],"collection":[{"href":"https:\/\/fireinsect.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fireinsect.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fireinsect.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fireinsect.top\/index.php\/wp-json\/wp\/v2\/comments?post=1374"}],"version-history":[{"count":3,"href":"https:\/\/fireinsect.top\/index.php\/wp-json\/wp\/v2\/posts\/1374\/revisions"}],"predecessor-version":[{"id":1409,"href":"https:\/\/fireinsect.top\/index.php\/wp-json\/wp\/v2\/posts\/1374\/revisions\/1409"}],"wp:attachment":[{"href":"https:\/\/fireinsect.top\/index.php\/wp-json\/wp\/v2\/media?parent=1374"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fireinsect.top\/index.php\/wp-json\/wp\/v2\/categories?post=1374"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fireinsect.top\/index.php\/wp-json\/wp\/v2\/tags?post=1374"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}