{"id":1137,"date":"2020-11-10T14:19:24","date_gmt":"2020-11-10T06:19:24","guid":{"rendered":"http:\/\/www.rain1024.com\/?p=1137"},"modified":"2023-08-07T20:57:24","modified_gmt":"2023-08-07T12:57:24","slug":"springcloud-gateway%e5%af%b9multipart-form-data%e7%ad%89%e5%85%b6%e4%bb%96post%e8%af%b7%e6%b1%82%e7%b1%bb%e5%9e%8b%e7%9a%84body%e4%bd%93%e8%bf%9b%e8%a1%8c%e5%a4%9a%e6%ac%a1%e6%89%93%e5%bc%80","status":"publish","type":"post","link":"http:\/\/rain1024.com\/index.php\/2020\/11\/10\/springcloud-gateway%e5%af%b9multipart-form-data%e7%ad%89%e5%85%b6%e4%bb%96post%e8%af%b7%e6%b1%82%e7%b1%bb%e5%9e%8b%e7%9a%84body%e4%bd%93%e8%bf%9b%e8%a1%8c%e5%a4%9a%e6%ac%a1%e6%89%93%e5%bc%80\/","title":{"rendered":"SpringCloud-Gateway\u5bf9multipart\/form-data\u7b49\u5176\u4ed6POST\u8bf7\u6c42\u7c7b\u578b\u7684body\u4f53\u8fdb\u884c\u591a\u6b21\u6253\u5f00"},"content":{"rendered":"

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\n
<dependencyManagement>\n        <dependencies>\n            <dependency>\n                <groupId>org.springframework.cloud<\/groupId>\n                <artifactId>spring-cloud-dependencies<\/artifactId>\n                <version>Greenwich.RELEASE<\/version>\n                <type>pom<\/type>\n                <scope>import<\/scope>\n            <\/dependency>\n        <\/dependencies>\n    <\/dependencyManagement>\n    \n<dependency>\n    <groupId>org.springframework.cloud<\/groupId>\n    <artifactId>spring-cloud-starter-gateway<\/artifactId>\n    <version>2.1.4.RELEASE<\/version>\n<\/dependency>\n<\/code><\/pre>\n<\/blockquote>\n
\u8fd9\u51e0\u5929\u5728\u7528gateway\u8fdb\u884c\u9274\u6743\u6821\u9a8c\u7684\u65f6\u5019\u9047\u5230\u5f88\u591a\u5751\uff0c\u4ee5\u524d\u4f7f\u7528\u7684\u90fd\u662fx-www-form-urlencoded\u8fd9\u79cd\u683c\u5f0f\u7684Body\uff0c\u5f88\u5bb9\u6613\u5c31\u53ef\u4ee5\u7528gateway\u6253\u5f00\u8fdb\u884c\u64cd\u4f5c\uff0c\u4f46\u8fd9\u6b21\u56e0\u4e3a\u6d89\u53ca\u5230\u56fe\u7247\u4e0a\u4f20\uff0c\u6240\u4ee5\u8bf7\u6c42\u683c\u5f0f\u53d8\u4e86\uff0c\u6253\u5f00\u7684\u8fc7\u7a0b\u53d8\u5f97\u975e\u5e38\u66f2\u6298\u3002<\/h3>\n
\u5148\u662f\u627e\u5230\u4e86\u4e0b\u9762\u8fd9\u79cd\u529e\u6cd5\uff0c\u786e\u5b9e\u53ef\u4ee5\u6253\u5f00\u5e76\u83b7\u53d6body\u91cc\u7684\u5185\u5bb9\uff0c\u800c\u4e14\u8fd8\u662f\u975e\u5e38\u89c4\u5219\u7684\u7c7b\u578b\uff0c\u4e0d\u9700\u8981\u4e8c\u6b21\u63d0\u53d6\uff0cformData\u5373\u662f\u6211\u4eec\u60f3\u8981\u7684\u5185\u5bb9\uff0c\u540e\u6765\u5728\u8def\u7531\u4e4b\u540e\u7684controller\u4e2d\u53d1\u73b0body\u91cc\u6ca1\u6709\u6570\u636e\u4e86\uff0c\u539f\u6765gateway\u53ea\u80fd\u6253\u5f00\u4e00\u6b21\u3002<\/h3>\n
MediaType mediaType = exchange.getRequest().getHeaders().getContentType();\n        if (MediaType.MULTIPART_FORM_DATA.isCompatibleWith(mediaType)) {\n            return exchange.getMultipartData().flatMap(formData->{\n                exchange.getAttributes().put(GateWayFilterDict.FORM_DATA_ATTR,formData);\n                return chain.filter(exchange.mutate().build());\n            });\n        }\n\n<\/code><\/pre>\n
\u540e\u6765\u6362\u6210\u4e86\u8fd9\u4e2a\u6837\u5b50\uff0c\u5148\u4f7f\u7528GlobalFilter\u5bf9body\u5185\u5bb9\u8fdb\u884c\u7f13\u5b58\uff0c\u4e4b\u540e\u4fbf\u53ef\u4ee5\u5728\u65b9\u6cd5\u91cc\u8fdb\u884c\u8c03\u7528<\/h3>\n
@Component\npublic class CacheBodyGlobalFilter implements Ordered, GlobalFilter {\n\n  public static final String CACHE_REQUEST_BODY_OBJECT_KEY = \"cachedRequestBodyObject\";\n\n    @Override\n    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {\n        if (exchange.getRequest().getHeaders().getContentType() == null) {\n            return chain.filter(exchange);\n        } else {\n            return DataBufferUtils.join(exchange.getRequest().getBody())\n                    .flatMap(dataBuffer -> {\n                        DataBufferUtils.retain(dataBuffer);\n                        Flux<DataBuffer> cachedFlux = Flux\n                                .defer(() -> Flux.just(dataBuffer.slice(0, dataBuffer.readableByteCount())));\n                        ServerHttpRequest mutatedRequest = new ServerHttpRequestDecorator(\n                                exchange.getRequest()) {\n                            @Override\n                            public Flux<DataBuffer> getBody() {\n                                return cachedFlux;\n                            }\n                        };\n                        exchange.getAttributes().put(CACHE_REQUEST_BODY_OBJECT_KEY, cachedFlux);\n\n                        return chain.filter(exchange.mutate().request(mutatedRequest).build());\n                    });\n        }\n    }\n\n    @Override\n    public int getOrder() {\n        return Ordered.HIGHEST_PRECEDENCE;\n    }\n}\n<\/code><\/pre>\n

public class VerificationFilter implements GatewayFilter, Ordered {\n\n    @Override\n    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {\n\n        String bodyContent = resolveBodyFromRequest(exchange.getRequest());\n\n        return chain.filter(exchange);\n    }\n\n    public static String resolveBodyFromRequest(ServerHttpRequest serverHttpRequest){\n        \/\/\u83b7\u53d6\u8bf7\u6c42\u4f53\n        Flux<DataBuffer> body = serverHttpRequest.getBody();\n        StringBuilder sb = new StringBuilder();\n\n        body.subscribe(buffer -> {\n            byte[] bytes = new byte[buffer.readableByteCount()];\n            buffer.read(bytes);\n\/\/            DataBufferUtils.release(buffer);\n            String bodyString = new String(bytes, StandardCharsets.UTF_8);\n            sb.append(bodyString);\n        });\n        return formatStr(sb.toString());\n    }\n\n    \/**\n     * \u53bb\u6389\u7a7a\u683c,\u6362\u884c\u548c\u5236\u8868\u7b26\n     * @param str\n     * @return\n     *\/\n    private static String formatStr(String str){\n        if (str != null && str.length() > 0) {\n            Pattern p = Pattern.compile(\"\\\\s*|\\t|\\r|\\n\");\n            Matcher m = p.matcher(str);\n            return m.replaceAll(\"\");\n        }\n        return str;\n    }\n\n    @Override\n    public int getOrder() {\n        return 1;\n    }\n}\n\n<\/code><\/pre>\n
\u8fd9\u91cc\u662f\u63d0\u53d6\u51fa\u6765\u7684\u5185\u5bb9\uff0c\u9700\u8981\u6839\u636e\u89c4\u5219\u8fdb\u884c\u4e8c\u6b21\u52a0\u5de5\uff0c\u4f46\u4e0d\u590d\u6742<\/h3>\n
----------------------------582918735041218588371746Content-Disposition:form-data;name=\"appKey\"4324----------------------------582918735041218588371746Content-Disposition:form-data;name=\"appSecret\"43244----------------------------582918735041218588371746--\n\n\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
\u672c\u6b21\u4ee3\u7801\u4ec5\u5728\u4ee5\u4e0b\u7248\u672c\u4e2d\u6d4b\u8bd5\u901a\u8fc7 <dependencyManagement> <depend\u2026 Read More »<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31],"tags":[],"class_list":["post-1137","post","type-post","status-publish","format-standard","hentry","category-java"],"_links":{"self":[{"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/posts\/1137","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/comments?post=1137"}],"version-history":[{"count":1,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/posts\/1137\/revisions"}],"predecessor-version":[{"id":1352,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/posts\/1137\/revisions\/1352"}],"wp:attachment":[{"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/media?parent=1137"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/categories?post=1137"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/rain1024.com\/index.php\/wp-json\/wp\/v2\/tags?post=1137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}