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2025-09-19 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Internet Technology >
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If you don't say much, just put in the code.
/ * @ author liuhanling * @ create 2018-12-14 20:01 * @ desc * / @ Slf4j@Componentpublic class RequestBodyFilter implements GatewayFilter, Ordered {private static final String CACHE_REQUEST_BODY_OBJECT_KEY = "cachedRequestBodyObject"; @ Override @ SuppressWarnings ("unchecked") public Mono filter (ServerWebExchange exchange, GatewayFilterChain chain) {Class inClass = String.class; ServerRequest serverRequest = new DefaultServerRequest (exchange); ServerHttpRequest request = exchange.getRequest () / record only http requests (including https) String schema = request.getURI () .getScheme (); if ((! "http" .equals (schema) & &! "https" .equals (schema)) {return chain.filter (exchange);} String contentType = request.getHeaders (). GetFirst ("Content-Type"); String upload = request.getHeaders (). GetFirst ("upload") / / the get method gets the parameter if ("GET" .equals (request.getMethod (). Name () {if (! request.getQueryParams () .isEmpty ()) {Map map = new HashMap (); request.getQueryParams () .toSingleValueMap () .forEach ((key, val)-> map.put (key, getURLDecoder (val) String param = new Gson (). ToJson (map); exchange.getAttributes (). Put (CACHE_REQUEST_BODY_OBJECT_KEY, param);} return chain.filter (exchange);} / / do not read body if without content type (contentType = = null | | contentType.length () = = 0) {return chain.filter (exchange) } / / File upload does not read body if ("true" .equals (upload)) {return chain.filter (exchange);} Mono modifiedBody = serverRequest.bodyToMono (inClass) .flatMap (o-> {log.debug ("requestBody: {}", o); exchange.getAttributes () .put (CACHE_REQUEST_BODY_OBJECT_KEY, o) Return Mono.justOrEmpty (o);}); BodyInserter bodyInserter = BodyInserters.fromPublisher (modifiedBody, inClass); HttpHeaders headers = new HttpHeaders (); headers.putAll (exchange.getRequest (). GetHeaders ()); CachedBodyOutputMessage outputMessage = new CachedBodyOutputMessage (exchange, headers) Return bodyInserter.insert (outputMessage, new BodyInserterContext ()) .then (Mono.defer (()-> {ServerHttpRequestDecorator decorator = new ServerHttpRequestDecorator (exchange.getRequest ()) {@ Override public HttpHeaders getHeaders () {long contentLength = headers.getContentLength ()) HttpHeaders httpHeaders = new HttpHeaders (); httpHeaders.putAll (super.getHeaders ()); if (contentLength > 0) {httpHeaders.setContentLength (contentLength) } else {/ / TODO: this causes a 'HTTP/1.1 411 Length Required' on httpbin.org httpHeaders.set (HttpHeaders.TRANSFER_ENCODING, "chunked");} return httpHeaders } @ Override public Flux getBody () {return outputMessage.getBody ();}}; return chain.filter (exchange.mutate () .request (decorator) .build ()) });} @ Override public int getOrder () {return 0;} / * URL transcoding * @ param val * @ return * / private String getURLDecoder (String val) {try {return URLDecoder.decode (val, "utf-8") } catch (Exception e) {log.error ("getURLDecoder error", e);} return val;}}
Rewrite ResponseBody
Create 2018-12-27 10:39 * @ desc * / @ Component@Slf4jpublic class ResponseBodyFilter implements GatewayFilter, Ordered {@ Override @ SuppressWarnings ("unchecked") public Mono filter (ServerWebExchange exchange, GatewayFilterChain chain) {ServerHttpResponseDecorator responseDecorator = new ServerHttpResponseDecorator (exchange.getResponse ()) {@ Override public Mono writeWith (Publisher)
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