{"id":10008137,"date":"2023-08-23T00:59:13","date_gmt":"2023-08-22T16:59:13","guid":{"rendered":"https:\/\/blog.itmax.cn\/?p=10008137"},"modified":"2023-08-23T00:59:13","modified_gmt":"2023-08-22T16:59:13","slug":"reactor-%e7%ac%ac%e5%8d%81%e7%af%87-%e5%ae%9a%e5%88%b6%e4%b8%80%e4%b8%aa%e7%94%9f%e4%ba%a7%e7%9a%84webclient","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10008137","title":{"rendered":"Reactor \u7b2c\u5341\u7bc7 \u5b9a\u5236\u4e00\u4e2a\u751f\u4ea7\u7684WebClient"},"content":{"rendered":"<h2>1 \u4e3a\u4ec0\u4e48\u8981\u7528 WebClient<\/h2>\n<p>\u521a\u5f00\u59cb\u5c1d\u8bd5\u4f7f\u7528 Spring WebFlux \u7684\u65f6\u5019\uff0c\u5f88\u591a\u4eba\u90fd\u4f1a\u4f7f\u7528 Mono.fromFuture() \u5c06\u5f02\u6b65\u8bf7\u6c42\u8f6c\u6210 Mono \u5bf9\u8c61\uff0c\u6216\u8005 Mono.fromSupplier() \u5c06\u8bf7\u6c42\u8f6c\u6210 MOno \u5bf9\u8c61\uff0c\u8fd9\u4e24\u79cd\u65b9\u5f0f\u5728\u54cd\u5e94\u5f0f\u7f16\u7a0b\u4e2d\u90fd\u662f\u4e0d\u5efa\u8bae\u7684\uff0c\u90fd\u4f1a\u963b\u585e\u5f53\u524d\u7ebf\u7a0b\u3002<\/p>\n<h3>1.1 Mono.fromFuture() VS WebClient<\/h3>\n<p>Mono.fromFuture()\u65b9\u6cd5\u548c\u4f7f\u7528 WebClient \u8c03\u7528\u7b2c\u4e09\u65b9\u63a5\u53e3\u4e4b\u95f4\u5b58\u5728\u4ee5\u4e0b\u533a\u522b\uff1a<\/p>\n<ul>\n<li>\u5f02\u6b65 vs. \u975e\u963b\u585e<\/li>\n<\/ul>\n<p>Mono.fromFuture()\u65b9\u6cd5\u9002\u7528\u4e8e\u63a5\u6536\u4e00\u4e2a java.util.concurrent.Future \u5bf9\u8c61\uff0c\u5e76\u5c06\u5176\u8f6c\u6362\u4e3a\u54cd\u5e94\u5f0f\u7684 Mono\u3002\u8fd9\u662f\u4e00\u4e2a\u963b\u585e\u64cd\u4f5c\uff0c\u56e0\u4e3a\u5b83\u4f1a\u7b49\u5f85 Future \u5bf9\u8c61\u5b8c\u6210\u3002\u800c\u4f7f\u7528 WebClient \u8c03\u7528\u7b2c\u4e09\u65b9\u63a5\u53e3\u662f\u5f02\u6b65\u548c\u975e\u963b\u585e\u7684\uff0c\u5b83\u4e0d\u4f1a\u76f4\u63a5\u963b\u585e\u5e94\u7528\u7a0b\u5e8f\u7684\u6267\u884c\uff0c\u800c\u662f\u4f7f\u7528\u4e8b\u4ef6\u9a71\u52a8\u7684\u65b9\u5f0f\u5904\u7406\u54cd\u5e94\u3002<\/p>\n<p>\u53ef\u6269\u5c55\u6027\u548c\u7075\u6d3b\u6027\uff1a\u4f7f\u7528 WebClient \u53ef\u4ee5\u66f4\u7075\u6d3b\u5730\u8fdb\u884c\u914d\u7f6e\u548c\u5904\u7406\uff0c\u4f8b\u5982\u8bbe\u7f6e\u8d85\u65f6\u65f6\u95f4\u3001\u8bf7\u6c42\u5934\u3001\u91cd\u8bd5\u673a\u5236\u7b49\u3002WebClient \u8fd8\u53ef\u4ee5\u4e0e\u8bb8\u591a\u5176\u4ed6 Spring WebFlux \u7ec4\u4ef6\u96c6\u6210\uff0c\u5982 WebSockets\u3001Server-Sent Events \u7b49\u3002\u800c Mono.fromFuture() \u662f\u9002\u7528\u4e8e\u5355\u4e2a Future \u5bf9\u8c61\u8f6c\u5316\u4e3a Mono \u7684\u60c5\u51b5\uff0c\u53ef\u6269\u5c55\u6027\u8f83\u5dee\u3002<\/p>\n<ul>\n<li>\u9519\u8bef\u5904\u7406<\/li>\n<\/ul>\n<p>WebClient \u63d0\u4f9b\u4e86\u66f4\u4e30\u5bcc\u7684\u9519\u8bef\u5904\u7406\u673a\u5236\uff0c\u53ef\u4ee5\u901a\u8fc7 onStatus\u3001onError \u7b49\u65b9\u6cd5\u6765\u5904\u7406\u4e0d\u540c\u7684 HTTP \u72b6\u6001\u7801\u6216\u5f02\u5e38\u3002\u540c\u65f6\uff0cWebClient \u8fd8\u63d0\u4f9b\u4e86\u66f4\u7075\u6d3b\u7684\u91cd\u8bd5\u548c\u56de\u9000\u7b56\u7565\u3002Mono.fromFuture() \u65b9\u6cd5\u53ea\u80fd\u5c06 Future \u5bf9\u8c61\u7684\u7ed3\u679c\u5305\u88c5\u5728 Mono \u4e2d\uff0c\u4e0d\u63d0\u4f9b\u7279\u5b9a\u7684\u9519\u8bef\u5904\u7406\u673a\u5236\u3002<\/p>\n<ul>\n<li>\u963b\u585e\u64cd\u4f5c<\/li>\n<\/ul>\n<p>Mono.fromFuture() \u4f1a\u963b\u585e\u3002\u5f53\u8c03\u7528 Mono.fromFuture() \u65b9\u6cd5\u5c06 Future \u8f6c\u6362\u4e3a Mono \u65f6\uff0c\u5b83\u4f1a\u7b49\u5f85 Future \u5bf9\u8c61\u7684\u7ed3\u679c\u8fd4\u56de\u3002\u5728\u8fd9\u4e2a\u7b49\u5f85\u7684\u8fc7\u7a0b\u4e2d\uff0cMono.fromFuture()\u65b9\u6cd5\u4f1a\u963b\u585e\u5f53\u524d\u7684\u7ebf\u7a0b\u3002\u8fd9\u610f\u5473\u7740\uff0c\u5982\u679c Future \u7684\u7ed3\u679c\u5728\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u6ca1\u6709\u8fd4\u56de\uff0c\u5219\u5f53\u524d\u7ebf\u7a0b\u4f1a\u4e00\u76f4\u963b\u585e\uff0c\u76f4\u5230 Future \u5bf9\u8c61\u8fd4\u56de\u7ed3\u679c\u6216\u8005\u8d85\u65f6\u3002\u56e0\u6b64\uff0c\u5728\u4f7f\u7528 Mono.fromFuture() \u65f6\u9700\u8981\u6ce8\u610f\u6f5c\u5728\u7684\u963b\u585e\u98ce\u9669\u3002\u53e6\u5916\uff0c\u9700\u8981\u786e\u4fddF uture \u7684\u4efb\u52a1\u5728\u540e\u53f0\u7ebf\u7a0b\u4e2d\u6267\u884c\uff0c\u4ee5\u514d\u963b\u585e\u5e94\u7528\u7a0b\u5e8f\u7684\u4e3b\u7ebf\u7a0b\u3002<\/p>\n<h3>1.2 Mono.fromFuture VS Mono.fromSupplier<\/h3>\n<p>Mono.fromSupplier() \u548c Mono.fromFuture() \u90fd\u662f\u7528\u4e8e\u5c06\u5f02\u6b65\u6267\u884c\u7684\u64cd\u4f5c\u8f6c\u6362\u4e3a\u54cd\u5e94\u5f0f\u7684 Mono \u5bf9\u8c61\uff0c\u4f46\u5b83\u4eec\u7684\u533a\u522b\u5728\u4e8e\uff1a<\/p>\n<p>Mono.fromSupplier() \u9002\u7528\u4e8e\u4e00\u4e2a\u63d0\u4f9b\u8005\/\u751f\u4ea7\u8005\uff0c\u53ef\u4ee5\u7528\u6765\u8868\u793a\u67d0\u4e2a\u64cd\u4f5c\u7684\u7ed3\u679c\uff0c\u8be5\u64cd\u4f5c\u662f\u4e00\u4e9b<strong>\u7eaf\u8ba1\u7b97\u5e76\u4e14\u6ca1\u6709\u963b\u585e<\/strong>\u7684\u65b9\u6cd5\u3002\u4e5f\u5c31\u662f\u8bf4\uff0cMono.fromSupplier() \u5c06\u5176\u53c2\u6570 (Supplier) \u6240\u63d0\u4f9b\u7684\u64cd\u4f5c\u5f02\u6b65\u6267\u884c\uff0c\u5e76\u5c06\u5176\u7ed3\u679c\u6253\u5305\u6210\u4e00\u4e2a Mono \u5bf9\u8c61\u3002<\/p>\n<p>Mono.fromFuture() \u9002\u7528\u4e8e\u4e00\u4e2a java.util.concurrent.Future \u5bf9\u8c61\uff0c\u5c06\u5176\u5c01\u88c5\u6210 Mono \u5bf9\u8c61\u3002\u8fd9\u610f\u5473\u7740\u8c03\u7528 Mono.fromFuture() \u65b9\u6cd5\u5c06\u963b\u585e\u5f53\u524d\u7ebf\u7a0b\uff0c\u76f4\u5230\u5f02\u6b65\u64cd\u4f5c\u5b8c\u6210\u8fd4\u56de\u4e00\u4e2a Future \u5bf9\u8c61\u3002<\/p>\n<p>\u56e0\u6b64\uff0cMono.fromSupplier() \u4e0e Mono.fromFuture() \u7684\u4e3b\u8981\u533a\u522b\u5728\u4e8e\uff1a<\/p>\n<p>Mono.fromSupplier() \u662f\u4e00\u4e2a\u975e\u963b\u585e\u7684\u64cd\u4f5c\uff0c\u4e0d\u4f1a\u963b\u585e\u5f53\u524d\u7ebf\u7a0b\u3002\u8fd9\u4e2a\u65b9\u6cd5\u7528\u4e8e<strong>\u6267\u884c\u8ba1\u7b97\u578b\u7684\u4efb\u52a1<\/strong>\uff0c\u8fd4\u56de\u4e00\u4e2a\u5c01\u88c5\u4e86\u8ba1\u7b97\u7ed3\u679c\u7684 Mono \u5bf9\u8c61\u3002<br \/>Mono.fromFuture() \u662f\u963b\u585e\u64cd\u4f5c\uff0c\u4f1a\u963b\u585e\u5f53\u524d\u7ebf\u7a0b\uff0c\u76f4\u5230\u5f02\u6b65\u64cd\u4f5c\u5b8c\u6bd5\u5e76\u8fd4\u56de\u770b\uff0c\u5b83\u9002\u7528\u4e8e\u5904\u7406 java.util.concurrent.Future \u5bf9\u8c61\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5982\u679c Supplier \u63d0\u4f9b\u7684\u64cd\u4f5c\u662f\u963b\u585e\u7684\uff0c\u5219 Mono.fromSupplier() \u65b9\u6cd5\u672c\u8eab\u4e5f\u4f1a\u963b\u585e\u7ebf\u7a0b\u3002\u4f46\u901a\u5e38\u60c5\u51b5\u4e0b\uff0cSupplier \u63d0\u4f9b\u7684\u64cd\u4f5c\u662f\u7eaf\u8ba1\u7b97\u578b\u7684\uff0c\u4e0d\u4f1a\u963b\u585e\u7ebf\u7a0b\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u53ef\u4ee5\u4f7f\u7528 Mono.fromSupplier() \u65b9\u6cd5\u5c06\u4e00\u4e2a\u7eaf\u8ba1\u7b97\u578b\u7684\u64cd\u4f5c\u8f6c\u6362\u4e3a Mono \u5bf9\u8c61\uff0c\u800c\u5c06\u4e00\u4e2a\u5f02\u6b65\u8fd4\u56de\u7ed3\u679c\u7684\u64cd\u4f5c\u8f6c\u6362\u4e3a Mono \u5bf9\u8c61\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528 Mono.fromFuture() \u65b9\u6cd5\u3002<\/p>\n<h2>2 \u5b9a\u5236\u5316\u81ea\u5df1\u7684 WebClient<\/h2>\n<h3>2.1 \u521d\u59cb\u5316 WebClient<\/h3>\n<p>WebClient \u652f\u6301\u5efa\u9020\u8005\u6a21\u5f0f\uff0c\u4f7f\u7528 WebClient \u5efa\u9020\u8005\u6a21\u5f0f\u652f\u6301\u5f00\u53d1\u81ea\u5df1\u7684\u4e2a\u6027\u5316 WebClient\uff0c\u6bd4\u5982\u652f\u6301\u8bbe\u7f6e\u63a5\u53e3\u8c03\u7528\u7edf\u4e00\u8017\u65f6\u3001\u81ea\u5b9a\u4e49\u5e95\u5c42 Http \u5ba2\u6237\u7aef\u3001\u8c03\u7528\u94fe\u8def\u3001\u6253\u5370\u63a5\u53e3\u8fd4\u56de\u65e5\u5fd7\u3001\u76d1\u63a7\u63a5\u53e3\u8017\u65f6\u7b49\u7b49\u3002<\/p>\n<p>WebClient builder \u652f\u6301\u4ee5\u4e0b\u65b9\u6cd5<\/p>\n<pre><code class=\"java\">interface Builder {\n\n        \/**\n         * \u914d\u7f6e\u8bf7\u6c42\u57fa\u7840\u7684url\uff0c\u5982\uff1abaseUrl = &quot;https:\/\/abc.go.com\/v1&quot;;\u548c uriBuilderFactory \u51b2\u7a81\uff0c\u5982\u679c\u6709 uriBuilderFactory \uff0c\u5219\u5ffd\u7565 baseUrl\n         *\/\n        Builder baseUrl(String baseUrl);\n\n        \/**\n         * URI \u8bf7\u6c42\u7684\u9ed8\u8ba4\u53d8\u91cf\u3002\u4e5f\u548c uriBuilderFactory \u51b2\u7a81\uff0c\u5982\u679c\u6709 uriBuilderFactory \uff0c\u5219\u5ffd\u7565 defaultUriVariables\n         *\/\n        Builder defaultUriVariables(Map&lt;String, ?&gt; defaultUriVariables);\n\n        \/**\n         * \u63d0\u4f9b\u4e00\u4e2a\u9884\u914d\u7f6e\u7684UriBuilderFactory\u5b9e\u4f8b\n         *\/\n        Builder uriBuilderFactory(UriBuilderFactory uriBuilderFactory);\n\n        \/**\n         * \u9ed8\u8ba4 header\n         *\/\n        Builder defaultHeader(String header, String... values);\n\n        \/**\n         * \u9ed8\u8ba4cookie\n         *\/\n        Builder defaultCookie(String cookie, String... values);\n\n        \/**\n         * \u63d0\u4f9b\u4e00\u4e2a consumer \u6765\u5b9a\u5236\u6bcf\u4e2a\u8bf7\u6c42\n         *\/\n        Builder defaultRequest(Consumer&lt;RequestHeadersSpec&lt;?&gt;&gt; defaultRequest);\n\n        \/**\n         * \u6dfb\u52a0\u4e00\u4e2afilter\uff0c\u53ef\u4ee5\u6dfb\u52a0\u591a\u4e2a\n         *\/\n        Builder filter(ExchangeFilterFunction filter);\n\n    \n        \/**\n         * \u914d\u7f6e\u8981\u4f7f\u7528\u7684 ClientHttpConnector\u3002\u8fd9\u5bf9\u4e8e\u63d2\u5165\u6216\u81ea\u5b9a\u4e49\u5e95\u5c42HTTP \u5ba2\u6237\u7aef\u5e93(\u4f8b\u5982SSL)\u7684\u9009\u9879\u975e\u5e38\u6709\u7528\u3002\n         *\/\n        Builder clientConnector(ClientHttpConnector connector);\n\n        \/**\n         * Configure the codecs for the {@code WebClient} in the\n         * {@link #exchangeStrategies(ExchangeStrategies) underlying}\n         * {@code ExchangeStrategies}.\n         * @param configurer the configurer to apply\n         * @since 5.1.13\n         *\/\n        Builder codecs(Consumer&lt;ClientCodecConfigurer&gt; configurer);\n\n\n\n        \/**\n         * \u63d0\u4f9b\u4e00\u4e2a\u9884\u5148\u914d\u7f6e\u4e86ClientHttpConnector\u548cExchangeStrategies\u7684ExchangeFunction\u3002\n\u8fd9\u662f\u5bf9 clientConnector \u7684\u4e00\u79cd\u66ff\u4ee3\uff0c\u5e76\u4e14\u6709\u6548\u5730\u8986\u76d6\u4e86\u5b83\u4eec\u3002\n         *\/\n        Builder exchangeFunction(ExchangeFunction exchangeFunction);\n\n        \/**\n         * Builder the {@link WebClient} instance.\n         *\/\n        WebClient build();\n        \n  \/\/ \u5176\u4ed6\u65b9\u6cd5\n    }<\/code><\/pre>\n<h3>2.2 \u65e5\u5fd7\u6253\u5370\u53ca\u76d1\u63a7<\/h3>\n<ul>\n<li>\u6253\u5370\u53c2\u6570\u3001url\u3001\u8fd4\u56de<\/li>\n<li>\u53c2\u6570\u548c\u8fd4\u56de\u9700\u8981\u8f6c\u6210json<\/li>\n<li>\u9700\u8981\u6253\u5370\u6b63\u5e38\u8fd4\u56de\u65e5\u5fd7\u548c\u5f02\u5e38<\/li>\n<li>\u6b63\u5e38\u76d1\u63a7\u3001\u5f02\u5e38\u76d1\u63a7\u3001\u603b\u76d1\u63a7\u4ee5\u53ca\u54cd\u5e94\u65f6\u95f4<\/li>\n<\/ul>\n<pre><code>.doOnSuccess(response-&gt; {\n    log.info(&quot;get.success, url={}, response={}, param={}&quot;, url, response);\n})\n.doOnError(error-&gt; {\n    log.info(&quot;get.error, url={}&quot;, url, error);\n    \/\/ \u76d1\u63a7\n})\n.doFinally(res-&gt; {\n  \/\/\u76d1\u63a7\n})<\/code><\/pre>\n<h3>2.3 \u8fd4\u56de\u5904\u7406<\/h3>\n<blockquote>\n<p>retrieve() \/\/ \u58f0\u660e\u5982\u4f55\u63d0\u53d6\u54cd\u5e94\u3002\u4f8b\u5982\uff0c\u63d0\u53d6\u4e00\u4e2aResponseEntity\u7684\u72b6\u6001\uff0c\u5934\u90e8\u548c\u8eab\u4f53:<\/p>\n<p>.bodyToMono(clazz) \u5c06\u8fd4\u56debody\u5185\u5bb9\u8f6c\u6210clazz\u5bf9\u8c61\uff0cclazz \u5bf9\u8c61\u53ef\u4ee5\u81ea\u5df1\u6307\u5b9a\u7c7b\u578b\u3002\u5982\u679c\u78b0\u5230\u6709\u95ee\u9898\u7684\u65e0\u6cd5\u8f6c\u5316\u7684\uff0c\u4e5f\u53ef\u4ee5\u5148\u8f6c\u6210String\uff0c\u7136\u540e\u81ea\u5df1\u5b9e\u73b0\u4e00\u4e2a\u5de5\u5177\u7c7b\uff0c\u5c06String\u8f6c\u6210 class \u5bf9\u8c61\u3002<\/p>\n<\/blockquote>\n<h4>2.3.1 get<\/h4>\n<pre><code class=\"java\">public &lt;T&gt; Mono&lt;T&gt; get(String url, Class&lt;T&gt; clazz, T defaultClass) {\nlong start = System.currentTimeMillis();\nreturn webClient.get()\n        .uri(url)\n        .accept(MediaType.APPLICATION_JSON)\n        .retrieve()\n        .bodyToMono(clazz)\n        .doOnSuccess(response-&gt; {\n            log.info(&quot;get.success, url={}, response={}, param={}&quot;, url, response);\n        })\n        .doOnError(error-&gt; {\n            log.info(&quot;get.param.error, url={}&quot;, url, error);\n        })\n        .onErrorReturn(defaultClass)\n        .doFinally(res-&gt; {\n        })\n        .publishOn(customScheduler);\n}<\/code><\/pre>\n<h4>2.3.2 get param \u8bf7\u6c42<\/h4>\n<pre><code class=\"java\">public &lt;T&gt; Mono&lt;T&gt; getParam(String url, MultiValueMap&lt;String, String&gt; param, Class&lt;T&gt; clazz, T defaultClass) {\nlong start = System.currentTimeMillis();\nURI uri = UriComponentsBuilder.fromUriString(url)\n        .queryParams(param)\n        .build()\n        .toUri();\n\nreturn webClient.get()\n        .uri(uri)\n        .accept(MediaType.APPLICATION_JSON)\n        .retrieve()\n        .bodyToMono(clazz)\n        .doOnSuccess(response-&gt; {\n            log.info(&quot;get.param.success, url={}, response={}, param={}&quot;, url, response, JsonUtil.toJson(param));\n        })\n        .doOnError(error-&gt; {\n            log.error(&quot;get.param.error, url={}, param={}&quot;, url, JsonUtil.toJson(param), error);\n        })\n        .onErrorReturn(defaultClass)\n        .doFinally(res-&gt; {\n        \/\/ \u76d1\u63a7 or \u6253\u5370\u65e5\u5fd7 or \u8017\u65f6\n        })\n        .publishOn(customScheduler);\n}<\/code><\/pre>\n<h4>2.3.3 post json \u8bf7\u6c42<\/h4>\n<pre><code class=\"java\">public &lt;T&gt; Mono&lt;T&gt; postJson(String url, final HttpParameter4Json parameter, Class&lt;T&gt; clazz, T defaultClass) {\nfinal long start = System.currentTimeMillis();\nreturn webClient.post()\n        .uri(url)\n        .contentType(MediaType.APPLICATION_JSON)\n        .cookies(cookies -&gt; cookies.setAll(parameter.getCookies()))\n        .body(Mono.just(parameter.getJsonBody()), ParameterizedTypeReference.forType(parameter.getBodyType()))\n        .headers(headers -&gt; headers.setAll(parameter.getHeaders()))\n        .accept(MediaType.APPLICATION_JSON)\n        .retrieve()\n        .bodyToMono(clazz)\n        .doOnSuccess(response-&gt; {\n            log.info(&quot;post.json.success, url={}, response={}, param={}&quot;, url, response, parameter.getJsonBody());\n        })\n        .doOnError(error-&gt; {\n            log.error(&quot;get.param.error, url={}, param={}&quot;, url, parameter.getJsonBody(), error);\n        })\n        .onErrorReturn(defaultClass)\n        .doFinally(res-&gt; {\n        })\n        .publishOn(customScheduler);\n\n}<\/code><\/pre>\n<h4>2.3.4 post form Data \u8bf7\u6c42<\/h4>\n<pre><code class=\"java\">public &lt;T&gt; Mono&lt;T&gt; postFormData(String url, HttpParameter parameter, Class&lt;T&gt; clazz, T defaultClass) {\n    final long start = System.currentTimeMillis();\n    return webClient.post()\n            .uri(url)\n            .contentType(MediaType.APPLICATION_FORM_URLENCODED)\n            .cookies(cookies -&gt; cookies.setAll(parameter.getCookies()))\n            .body(BodyInserters.fromFormData(parameter.getMultiValueMapParam()))\n            .headers(headers -&gt; headers.setAll(parameter.getMapHeaders()))\n            .accept(MediaType.APPLICATION_JSON)\n            .retrieve()\n            .bodyToMono(clazz)\n            .doOnSuccess(response-&gt; {\n                log.info(&quot;post.fromData.success, url={}, response={}, param={}&quot;, url, response, JsonUtil.toJson(parameter));\n            })\n            .doOnError(error-&gt; {\n                log.info(&quot;get.param.error, url={}, param={}&quot;, url, JsonUtil.toJson(parameter), error);\n            })\n            .onErrorReturn(defaultClass)\n            .doFinally(res-&gt; {\n            })\n            .publishOn(customScheduler);\n}<\/code><\/pre>\n<h3>2.4 \u5f02\u5e38\u5904\u7406<\/h3>\n<h4>2.4.1 \u5f02\u5e38\u8fd4\u56de\u515c\u5e95<\/h4>\n<p>onErrorReturn \u53d1\u73b0\u5f02\u5e38\u8fd4\u56de\u515c\u5e95\u6570\u636e<\/p>\n<h4>2.4.2 \u5f02\u5e38\u5904\u7406<\/h4>\n<p>\u72b6\u6001\u7801\u8f6c\u6210\u5f02\u5e38\u629b\u51fa<\/p>\n<pre><code class=\"java\">.onStatus(HttpStatus::isError, response -&gt; Mono.error(new RuntimeException(&quot;Request failed with status code: &quot; + response.statusCode())))<\/code><\/pre>\n<p>\u76d1\u63a7\u5f02\u5e38<\/p>\n<pre><code class=\"java\">.doOnError(error -&gt; {\n    \/\/ log and monitor\n})<\/code><\/pre>\n<h2>3 \u5b8c\u6574\u7684 WebClient<\/h2>\n<pre><code class=\"java\">\npackage com.geniu.reactor.webclient;\n\nimport com.geniu.utils.JsonUtil;\nimport io.netty.channel.ChannelOption;\nimport io.netty.handler.ssl.SslContextBuilder;\nimport io.netty.handler.ssl.util.InsecureTrustManagerFactory;\nimport lombok.extern.slf4j.Slf4j;\nimport org.springframework.core.ParameterizedTypeReference;\nimport org.springframework.http.HttpStatus;\nimport org.springframework.http.MediaType;\nimport org.springframework.http.client.reactive.ReactorClientHttpConnector;\nimport org.springframework.util.MultiValueMap;\nimport org.springframework.web.reactive.function.BodyInserters;\nimport org.springframework.web.reactive.function.client.WebClient;\nimport org.springframework.web.util.UriComponentsBuilder;\nimport reactor.core.publisher.Mono;\nimport reactor.core.scheduler.Scheduler;\nimport reactor.core.scheduler.Schedulers;\nimport reactor.netty.http.client.HttpClient;\nimport reactor.netty.resources.ConnectionProvider;\nimport reactor.netty.resources.LoopResources;\nimport reactor.netty.tcp.SslProvider;\nimport reactor.netty.tcp.TcpClient;\n\nimport java.net.URI;\nimport java.time.Duration;\nimport java.util.function.Function;\n\n\/**\n * @Author: prepared\n * @Date: 2023\/8\/15 11:05\n *\/\n@Slf4j\npublic class CustomerWebClient {\n\n    public static final CustomerWebClient instance = new CustomerWebClient();\n\n    \/**\n     * \u9650\u5236\u5e76\u53d1\u6570 100\n     *\/\n    Scheduler customScheduler = Schedulers.newParallel(&quot;CustomScheduler&quot;, 100);\n\n\n    private final WebClient webClient;\n\n    private CustomerWebClient() {\n\n        final SslContextBuilder sslBuilder = SslContextBuilder.forClient()\n                .trustManager(InsecureTrustManagerFactory.INSTANCE);\n\n        final SslProvider ssl = SslProvider.builder().sslContext(sslBuilder)\n                .defaultConfiguration(SslProvider.DefaultConfigurationType.TCP).build();\n\n        final int cpuCores = Runtime.getRuntime().availableProcessors();\n        final int selectorCount = Math.max(cpuCores \/ 2, 4);\n        final int workerCount = Math.max(cpuCores * 2, 8);\n        final LoopResources pool = LoopResources.create(&quot;HCofSWC&quot;, selectorCount, workerCount, true);\n\n        final Function&lt;? super TcpClient, ? extends TcpClient&gt; tcpMapper = tcp -&gt; tcp\n                .option(ChannelOption.TCP_NODELAY, true)\n                .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 3000)\n                .option(ChannelOption.SO_TIMEOUT, 10000)\n                .secure(ssl)\n                .runOn(pool);\n\n        ConnectionProvider.Builder httpClientOfSWC = ConnectionProvider\n                .builder(&quot;HttpClientOfSWC&quot;)\n                .maxConnections(100_000)\n                .pendingAcquireTimeout(Duration.ofSeconds(6));\n        final ConnectionProvider connectionProvider = httpClientOfSWC.build();\n\n        final HttpClient hc = HttpClient.create(connectionProvider)\n                .tcpConfiguration(tcpMapper);\n\n        final Function&lt;HttpClient, HttpClient&gt; hcMapper = rhc -&gt; rhc\n                .compress(true);\n\n        final WebClient.Builder wcb = WebClient.builder()\n                .clientConnector(new ReactorClientHttpConnector(hcMapper.apply(hc)));\n\/\/                .filter(new TraceRequestFilter()); \u53ef\u4ee5\u901a\u8fc7Filter \u589e\u52a0trace\u8ffd\u8e2a\n\n        this.webClient = wcb.build();\n    }\n\n    public &lt;T&gt; Mono&lt;T&gt; get(String url, Class&lt;T&gt; clazz, T defaultClass) {\n        long start = System.currentTimeMillis();\n        return webClient.get()\n                .uri(url)\n                .accept(MediaType.APPLICATION_JSON)\n                .retrieve()\n                .onStatus(HttpStatus::isError, response -&gt; Mono.error(new RuntimeException(&quot;Request failed with status code: &quot; + response.statusCode())))\n                .bodyToMono(clazz)\n                .doOnSuccess(response-&gt; {\n                    log.info(&quot;get.success, url={}, response={}, param={}&quot;, url, response);\n                })\n                .doOnError(error-&gt; {\n                    log.info(&quot;get.param.error, url={}&quot;, url, error);\n                })\n                .onErrorReturn(defaultClass)\n                .doFinally(res-&gt; {\n                })\n                .publishOn(customScheduler);\n    }\n\n    public &lt;T&gt; Mono&lt;T&gt; getParam(String url, MultiValueMap&lt;String, String&gt; param, Class&lt;T&gt; clazz, T defaultClass) {\n        long start = System.currentTimeMillis();\n        URI uri = UriComponentsBuilder.fromUriString(url)\n                .queryParams(param)\n                .build()\n                .toUri();\n\n        return webClient.get()\n                .uri(uri)\n                .accept(MediaType.APPLICATION_JSON)\n                .retrieve()\n                .bodyToMono(clazz)\n                .doOnSuccess(response-&gt; {\n                    log.info(&quot;get.param.success, url={}, response={}, param={}&quot;, url, response, JsonUtil.toJson(param));\n                })\n                .doOnError(error-&gt; {\n                    log.error(&quot;get.param.error, url={}, param={}&quot;, url, JsonUtil.toJson(param), error);\n                })\n                .onErrorReturn(defaultClass)\n                .doFinally(res-&gt; {\n                })\n                .publishOn(customScheduler);\n    }\n\n\n\n    public &lt;T&gt; Mono&lt;T&gt; postJson(String url, final HttpParameter4Json parameter, Class&lt;T&gt; clazz, T defaultClass) {\n        final long start = System.currentTimeMillis();\n        return webClient.post()\n                .uri(url)\n                .contentType(MediaType.APPLICATION_JSON)\n                .cookies(cookies -&gt; cookies.setAll(parameter.getCookies()))\n                .body(Mono.just(parameter.getJsonBody()), ParameterizedTypeReference.forType(parameter.getBodyType()))\n                .headers(headers -&gt; headers.setAll(parameter.getHeaders()))\n                .accept(MediaType.APPLICATION_JSON)\n                .retrieve()\n                .bodyToMono(clazz)\n                .doOnSuccess(response-&gt; {\n                    log.info(&quot;post.json.success, url={}, response={}, param={}&quot;, url, response, parameter.getJsonBody());\n                })\n                .doOnError(error-&gt; {\n                    log.error(&quot;get.param.error, url={}, param={}&quot;, url, parameter.getJsonBody(), error);\n                })\n                .onErrorReturn(defaultClass)\n                .doFinally(res-&gt; {\n                })\n                .publishOn(customScheduler);\n\n    }\n\n\n    public &lt;T&gt; Mono&lt;T&gt; postFormData(String url, HttpParameter parameter, Class&lt;T&gt; clazz, T defaultClass) {\n        final long start = System.currentTimeMillis();\n        return webClient.post()\n                .uri(url)\n                .contentType(MediaType.APPLICATION_FORM_URLENCODED)\n                .cookies(cookies -&gt; cookies.setAll(parameter.getCookies()))\n                .body(BodyInserters.fromFormData(parameter.getMultiValueMapParam()))\n                .headers(headers -&gt; headers.setAll(parameter.getMapHeaders()))\n                .accept(MediaType.APPLICATION_JSON)\n                .retrieve()\n                .bodyToMono(clazz)\n                .doOnSuccess(response-&gt; {\n                    log.info(&quot;post.fromData.success, url={}, response={}, param={}&quot;, url, response, JsonUtil.toJson(parameter));\n                })\n                .doOnError(error-&gt; {\n                    log.info(&quot;get.param.error, url={}, param={}&quot;, url, JsonUtil.toJson(parameter), error);\n                })\n                .onErrorReturn(defaultClass)\n                .doFinally(res-&gt; {\n                })\n                .publishOn(customScheduler);\n    }\n\n}\n<\/code><\/pre>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000044139616\">https:\/\/segmentfault.com\/a\/1190000044139616<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>1 \u4e3a\u4ec0\u4e48\u8981\u7528 WebClient \u521a\u5f00\u59cb\u5c1d\u8bd5\u4f7f\u7528 Spring WebFlux \u7684\u65f6\u5019\uff0c\u5f88\u591a\u4eba\u90fd\u4f1a\u4f7f\u7528 Mo [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-10008137","post","type-post","status-publish","format-standard","hentry","category-share"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10008137","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"}],"author":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10008137"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10008137\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10008137"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10008137"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10008137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}