解決spring boot網關gateway導致的坑,無法下載文件問題

接口返回內容，瀏覽器顯示PDF文檔。但是輸入接口地址以后一直提示這個

核對接口路徑也是正確的，并且沒有報錯提示，后面發現是網關沒有配置放行路徑，于是進行了補充

所以 以后對于前端請求統一由網關進行配置處理的，一定要對于靜態資源合理配置，或者對于放行接口要統一補充進來(最后統一一下下接口前綴名稱，這樣就只需要寫一個了)

spring cloud gateway啟動報錯：org.springframework.cloud.gateway.config.GatewayAutoConfiguration

springcloud 啟動一直報錯 詳細錯誤信息

Parameter 0 of method modifyRequestBodyGatewayFilterFactory in org.springframework.cloud.gateway.config.GatewayAutoConfiguration required a bean of type ’org.springframework.http.codec.ServerCodecConfigurer’ that could not be found.

Action:

Consider defining a bean of type ’org.springframework.http.codec.ServerCodecConfigurer’ in your configuration.

將pom文件中的spring-boot-starter-web 移除

點進去 GatewayAutoConfiguration 這個類

@Beanpublic ModifyRequestBodyGatewayFilterFactory modifyRequestBodyGatewayFilterFactory(ServerCodecConfigurer codecConfigurer) { return new ModifyRequestBodyGatewayFilterFactory(codecConfigurer.getReaders());}@Beanpublic DedupeResponseHeaderGatewayFilterFactory dedupeResponseHeaderGatewayFilterFactory() { return new DedupeResponseHeaderGatewayFilterFactory();}@Beanpublic ModifyResponseBodyGatewayFilterFactory modifyResponseBodyGatewayFilterFactory(ServerCodecConfigurer codecConfigurer, Set<MessageBodyDecoder> bodyDecoders, Set<MessageBodyEncoder> bodyEncoders) { return new ModifyResponseBodyGatewayFilterFactory(codecConfigurer.getReaders(), bodyDecoders, bodyEncoders);}

確實需要這個bean

spring cloud gateway server項目是一個spring boot項目，在啟動的時候會去加載它的配置，其中有一個叫做GatewayClassPathWarningAutoConfiguration的配置類 代碼入下

@Configuration( proxyBeanMethods = false)//在 GatewayAutoConfiguration 執行執行 @AutoConfigureBefore({GatewayAutoConfiguration.class})public class GatewayClassPathWarningAutoConfiguration { private static final Log log = LogFactory.getLog(GatewayClassPathWarningAutoConfiguration.class); private static final String BORDER = 'nn**********************************************************nn'; public GatewayClassPathWarningAutoConfiguration() { } @Configuration(proxyBeanMethods = false ) @ConditionalOnMissingClass({'org.springframework.web.reactive.DispatcherHandler'}) protected static class WebfluxMissingFromClasspathConfiguration {public WebfluxMissingFromClasspathConfiguration() { GatewayClassPathWarningAutoConfiguration.log.warn('nn**********************************************************nnSpring Webflux is missing from the classpath, which is required for Spring Cloud Gateway at this time. Please add spring-boot-starter-webflux dependency.nn**********************************************************nn');} } @Configuration(proxyBeanMethods = false ) @ConditionalOnClass(name = {'org.springframework.web.servlet.DispatcherServlet'} ) protected static class SpringMvcFoundOnClasspathConfiguration {public SpringMvcFoundOnClasspathConfiguration() { GatewayClassPathWarningAutoConfiguration.log.warn('nn**********************************************************nnSpring MVC found on classpath, which is incompatible with Spring Cloud Gateway at this time. Please remove spring-boot-starter-web dependency.nn**********************************************************nn');} }}

我們pom中依賴了spring-boot-starter-web 也就是存在

org.springframework.web.servlet.DispatcherServlet

此時這個 與Spring Cloud Gateway不兼容

spring cloud gateway是基于webflux的，如果需要web支持的話需要導入spring-boot-starter-webflux取代spring-boot-start-web。

以上為個人經驗，希望能給大家一個參考，也希望大家多多支持好吧啦網。