fegin通过header传递token信息到下游服务

我不是女神ヾ 2023-07-18 02:36 11阅读 0赞

项目中，使用gateway作为统一的网关入口，进行token的校验后，会将token解析后的userId和phone等信息放到request的请求头中，到fegin后，需要进行拦截后发送给下游服务。

#### 1.使用的fegin依赖 ####

<dependency>
         <groupId>org.springframework.cloud</groupId>
         <artifactId>spring-cloud-starter-openfeign</artifactId>
         <version>2.1.5.RELEASE</version>
     </dependency>
      <dependency>
         <groupId>org.springframework.cloud</groupId>
          <artifactId>spring-cloud-dependencies</artifactId>
          <version>Greenwich.SR5</version>
          <type>pom</type>
          <scope>import</scope>
      </dependency>

#### 2.gateway中拦截token并解析的代码 ####

统一的拦截类：

import cn.hutool.core.collection.CollectionUtil;
    import cn.hutool.core.util.StrUtil;
    import com.alibaba.fastjson.JSONObject;
    import com.ruizhi.detection.common.TokenReturnEnum;
    import com.ruizhi.detection.common.TokenUtil;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.cloud.gateway.filter.GatewayFilterChain;
    import org.springframework.cloud.gateway.filter.GlobalFilter;
    import org.springframework.core.Ordered;
    import org.springframework.core.io.buffer.DataBuffer;
    import org.springframework.http.HttpHeaders;
    import org.springframework.http.HttpStatus;
    import org.springframework.http.server.reactive.ServerHttpRequest;
    import org.springframework.http.server.reactive.ServerHttpResponse;
    import org.springframework.stereotype.Component;
    import org.springframework.web.server.ServerWebExchange;
    import reactor.core.publisher.Mono;
    
    import java.nio.charset.StandardCharsets;
    import java.util.List;
    import java.util.Map;
    import java.util.function.Consumer;
    
    /**
     * @description: 公共的权限过滤filter
     * @Author: 
     * @Date: 2019/8/15 13:43
     */
    @Component
    public class ApiGlobalFilter implements GlobalFilter, Ordered { 
    
        /**
         * 不进行token校验的地址
         */
        @Value("#{'${jwt.ignoreUrlList}'.split(',')}")
        public List<String> ignoreUrl;
    
        @Autowired
        private TokenUtil tokenUtil;
    
        /**
         * 拦截所有的请求头
         * @param exchange
         * @param chain
         * @return
         */
        @Override
        public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) { 
            String requestUrl = exchange.getRequest().getPath().toString();
            boolean status = CollectionUtil.contains(ignoreUrl, requestUrl);
            if (!status){ 
                String token = exchange.getRequest().getHeaders().getFirst("token");
                ServerHttpResponse response = exchange.getResponse();
                //没有数据
                if (StrUtil.isBlank(token)) { 
                    JSONObject message = new JSONObject();
                    message.put("code", TokenReturnEnum.TOKEN_NONE.getCode());
                    message.put("message", "鉴权失败，无token或手机号");
                    byte[] bits = message.toString().getBytes(StandardCharsets.UTF_8);
                    DataBuffer buffer = response.bufferFactory().wrap(bits);
                    response.setStatusCode(HttpStatus.UNAUTHORIZED);
                    response.getHeaders().add("Content-Type", "text/json;charset=UTF-8");
                    return response.writeWith(Mono.just(buffer));
                    //有数据
                }else { 
                    //校验token
                    Map<String, String> tokenInfoMap = tokenUtil.verifyJWT(token);
                    if (tokenUtil.TOKEN_ERROR.equals(tokenInfoMap.get("code"))){ 
                        JSONObject message = new JSONObject();
                        message.put("message", "token错误");
                        message.put("code", TokenReturnEnum.TOKEN_ERROR.getCode());
                        byte[] bits = message.toString().getBytes(StandardCharsets.UTF_8);
                        DataBuffer buffer = response.bufferFactory().wrap(bits);
                        response.setStatusCode(HttpStatus.UNAUTHORIZED);
                        response.getHeaders().add("Content-Type", "text/json;charset=UTF-8");
                        return response.writeWith(Mono.just(buffer));
                    }else if (tokenUtil.TOKEN_EXPIRED.equals(tokenInfoMap.get("code"))){ 
                        JSONObject message = new JSONObject();
                        message.put("message", "token过期");
                        message.put("code", TokenReturnEnum.TOKEN_TIME_OUT.getCode());
                        byte[] bits = message.toString().getBytes(StandardCharsets.UTF_8);
                        DataBuffer buffer = response.bufferFactory().wrap(bits);
                        response.setStatusCode(HttpStatus.UNAUTHORIZED);
                        response.getHeaders().add("Content-Type", "text/json;charset=UTF-8");
                        return response.writeWith(Mono.just(buffer));
                    }
                    //将数据返回给下级服务器
                    Consumer<HttpHeaders> httpHeaders = httpHeader -> { 
                        httpHeader.set("phone", tokenInfoMap.get("phone"));
                        httpHeader.set("targetId", tokenInfoMap.get("targetId"));
                        httpHeader.set("type", tokenInfoMap.get("type"));
                        httpHeader.set("scope", tokenInfoMap.get("scope"));
                    };
                    //将现在的request，添加当前身份
                    ServerHttpRequest mutableReq = exchange.getRequest().mutate().headers(httpHeaders).build();
                    ServerWebExchange mutableExchange = exchange.mutate().request(mutableReq).build();
                    return chain.filter(mutableExchange);
                }
            }
            return chain.filter(exchange);
        }
    
        @Override
        public int getOrder() { 
            return 10101;
        }
    }

tokenUtil代码：

import com.auth0.jwt.JWT;
    import com.auth0.jwt.JWTVerifier;
    import com.auth0.jwt.algorithms.Algorithm;
    import com.auth0.jwt.exceptions.TokenExpiredException;
    import com.auth0.jwt.interfaces.DecodedJWT;
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.stereotype.Component;
    import java.util.HashMap;
    import java.util.Map;
    
    /**
     * @description: 解析token信息的工具类
     * @Author: yang.fu.ren
     * @Date: 2020/2/20 9:34
     */
    @Component
    public class TokenUtil { 
    
        private static Map<String, String> map = new HashMap<>();
    
        /**
         * token校验通过
         */
        public final String TOKEN_CORRECT = "TOKEN_CORRECT";
        /**
         * token错误
         */
        public final String TOKEN_ERROR = "TOKEN_ERROR";
        /**
         * token过期
         */
        public final String TOKEN_EXPIRED = "TOKEN_EXPIRED";
    
        @Value("${jwt.secret}")
        private String secret;
    
        /**
         * 校验token
         * @param token
         * @return
         */
        public Map<String, String> verifyJWT(String token){ 
            Algorithm algorithm = Algorithm.HMAC256(secret);
            JWTVerifier verifier = JWT.require(algorithm)
                    .withIssuer("admin")
                    .build();
            try { 
                DecodedJWT jwt = verifier.verify(token);
                String phone = jwt.getClaim("phone").asString();
                String targetId = jwt.getClaim("targetId").asString();
                String type = jwt.getClaim("type").asString();
                String scope = jwt.getClaim("scope").asString();
                map.put("phone", phone);
                map.put("targetId", targetId);
                map.put("type", type);
                map.put("scope", scope);
                map.put("code", TOKEN_CORRECT);
            }catch (TokenExpiredException e){ 
                map.put("code", TOKEN_EXPIRED);
            }catch (Exception e){ 
                map.put("code", TOKEN_ERROR);
            }finally { 
                return map;
            }
        }
    }

#### 3.在fegin中拦截请求头并添加的代码 ####

import feign.RequestInterceptor;
    import feign.RequestTemplate;
    import lombok.extern.slf4j.Slf4j;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.web.context.request.RequestContextHolder;
    import org.springframework.web.context.request.ServletRequestAttributes;
    import javax.servlet.http.HttpServletRequest;
    
    /**
     * @description拦截请求并重新设置header信息
     * @author
     * @date 2020/3/23 10:09
     */
    @Slf4j
    @Configuration
    public class FeignRequestInterceptor implements RequestInterceptor { 
    
        @Override
        public void apply(RequestTemplate template) { 
            HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
            String phone = request.getHeader("phone");
            String userAgent = request.getHeader("User-agent");
            String contentType = request.getHeader("Content-Type");
            template.header("Content-Type", new String[]{ contentType});
            template.header("User-agent", new String[]{ userAgent});
            template.header("phone", new String[]{ phone});
            System.out.println(phone + "ddd" + userAgent + "dddd" + contentType);
        }
    }

#### 4.下游服务获取请求头数据的代码 ####

//从头中获取当前的登录id
     HttpServletRequest request = ((ServletRequestAttributes) (RequestContextHolder.currentRequestAttributes())).getRequest();
     System.out.println("获取到的头部信息:" + request.getHeader("phone"));

### 坑： ###

这里必须说一个我遇到的坑，找了好久没有找到原因，具体内容是，在fegin中拦截请求头并添加的时候，RequestInterceptor的代码如下：

@Configuration
    public class FeignRequestInterceptor implements RequestInterceptor { 
    
        @Override
        public void apply(RequestTemplate template) { 
            ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
            HttpServletRequest request = attributes.getRequest();
            Enumeration<String> headerNames = request.getHeaderNames();
            if (headerNames != null) { 
                while (headerNames.hasMoreElements()) { 
                    String name = headerNames.nextElement();
                    String values = request.getHeader(name);
                    template.header(name, values);
                    System.out.println("name:" + name + ";value" + values);
                }
            }
        }
    }

这个代码看起来逻辑好像也都没啥错误，就是把所有的请求头都加入到接下来的Request中，但是这样在你进行post请求时就会报以下的错误，而且错误是，当返回结果时候，会出错，猜测的是这个把所有的请求头都给加到reques里了，返回错误。

2020-03-23 15:47:18.437 ERROR 7268 --- [nio-9105-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is feign.RetryableException: Incomplete output stream executing POST http://standard-service/standardInfo/pageStandardInfo] with root cause
    
    java.io.IOException: Incomplete output stream
    	at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1523) ~[na:1.8.0_211]
    	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1492) ~[na:1.8.0_211]
    	at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480) ~[na:1.8.0_211]
    	at feign.Client$Default.convertResponse(Client.java:82) ~[feign-core-10.4.0.jar:na]
    	at feign.Client$Default.execute(Client.java:78) ~[feign-core-10.4.0.jar:na]
    	at org.springframework.cloud.openfeign.ribbon.FeignLoadBalancer.execute(FeignLoadBalancer.java:93) ~[spring-cloud-openfeign-core-2.1.5.RELEASE.jar:2.1.5.RELEASE]
    	at org.springframework.cloud.openfeign.ribbon.FeignLoadBalancer.execute(FeignLoadBalancer.java:56) ~[spring-cloud-openfeign-core-2.1.5.RELEASE.jar:2.1.5.RELEASE]
    	at com.netflix.client.AbstractLoadBalancerAwareClient$1.call(AbstractLoadBalancerAwareClient.java:104) ~[ribbon-loadbalancer-2.3.0.jar:2.3.0]
    	at com.netflix.loadbalancer.reactive.LoadBalancerCommand$3$1.call(LoadBalancerCommand.java:303) ~[ribbon-loadbalancer-2.3.0.jar:2.3.0]
    	at com.netflix.loadbalancer.reactive.LoadBalancerCommand$3$1.call(LoadBalancerCommand.java:287) ~[ribbon-loadbalancer-2.3.0.jar:2.3.0]
    	at rx.internal.util.ScalarSynchronousObservable$3.call(ScalarSynchronousObservable.java:231) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.internal.util.ScalarSynchronousObservable$3.call(ScalarSynchronousObservable.java:228) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.Observable.unsafeSubscribe(Observable.java:10327) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.internal.operators.OnSubscribeConcatMap$ConcatMapSubscriber.drain(OnSubscribeConcatMap.java:286) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.internal.operators.OnSubscribeConcatMap$ConcatMapSubscriber.onNext(OnSubscribeConcatMap.java:144) ~[rxjava-1.3.8.jar:1.3.8]
    	at com.netflix.loadbalancer.reactive.LoadBalancerCommand$1.call(LoadBalancerCommand.java:185) ~[ribbon-loadbalancer-2.3.0.jar:2.3.0]
    	at com.netflix.loadbalancer.reactive.LoadBalancerCommand$1.call(LoadBalancerCommand.java:180) ~[ribbon-loadbalancer-2.3.0.jar:2.3.0]
    	at rx.Observable.unsafeSubscribe(Observable.java:10327) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.internal.operators.OnSubscribeConcatMap.call(OnSubscribeConcatMap.java:94) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.internal.operators.OnSubscribeConcatMap.call(OnSubscribeConcatMap.java:42) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.Observable.unsafeSubscribe(Observable.java:10327) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.internal.operators.OperatorRetryWithPredicate$SourceSubscriber$1.call(OperatorRetryWithPredicate.java:127) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.internal.schedulers.TrampolineScheduler$InnerCurrentThreadScheduler.enqueue(TrampolineScheduler.java:73) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.internal.schedulers.TrampolineScheduler$InnerCurrentThreadScheduler.schedule(TrampolineScheduler.java:52) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.internal.operators.OperatorRetryWithPredicate$SourceSubscriber.onNext(OperatorRetryWithPredicate.java:79) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.internal.operators.OperatorRetryWithPredicate$SourceSubscriber.onNext(OperatorRetryWithPredicate.java:45) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.internal.util.ScalarSynchronousObservable$WeakSingleProducer.request(ScalarSynchronousObservable.java:276) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.Subscriber.setProducer(Subscriber.java:209) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.internal.util.ScalarSynchronousObservable$JustOnSubscribe.call(ScalarSynchronousObservable.java:138) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.internal.util.ScalarSynchronousObservable$JustOnSubscribe.call(ScalarSynchronousObservable.java:129) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.Observable.subscribe(Observable.java:10423) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.Observable.subscribe(Observable.java:10390) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.observables.BlockingObservable.blockForSingle(BlockingObservable.java:443) ~[rxjava-1.3.8.jar:1.3.8]
    	at rx.observables.BlockingObservable.single(BlockingObservable.java:340) ~[rxjava-1.3.8.jar:1.3.8]
    	at com.netflix.client.AbstractLoadBalancerAwareClient.executeWithLoadBalancer(AbstractLoadBalancerAwareClient.java:112) ~[ribbon-loadbalancer-2.3.0.jar:2.3.0]
    	at org.springframework.cloud.openfeign.ribbon.LoadBalancerFeignClient.execute(LoadBalancerFeignClient.java:83) ~[spring-cloud-openfeign-core-2.1.5.RELEASE.jar:2.1.5.RELEASE]
    	at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:110) ~[feign-core-10.4.0.jar:na]
    	at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:80) ~[feign-core-10.4.0.jar:na]
    	at com.alibaba.cloud.sentinel.feign.SentinelInvocationHandler.invoke(SentinelInvocationHandler.java:107) ~[spring-cloud-alibaba-sentinel-2.1.1.RELEASE.jar:2.1.1.RELEASE]
    	at com.sun.proxy.$Proxy106.pageStandardInfo(Unknown Source) ~[na:na]
    	at com.ruizhi.detection.controller.standad.StandardInfoController.pageStandardInfo(StandardInfoController.java:63) ~[classes/:na]
    	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_211]
    	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_211]
    	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_211]
    	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_211]
    	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) ~[spring-web-5.1.13.RELEASE.jar:5.1.13.RELEASE]
    	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.1.13.RELEASE.jar:5.1.13.RELEASE]
    	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105) ~[spring-webmvc-5.1.13.RELEASE.jar:5.1.13.RELEASE]
    	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:893) ~[spring-webmvc-5.1.13.RELEASE.jar:5.1.13.RELEASE]
    	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:798) ~[spring-webmvc-5.1.13.RELEASE.jar:5.1.13.RELEASE]
    	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.1.13.RELEASE.jar:5.1.13.RELEASE]
    	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) ~[spring-webmvc-5.1.13.RELEASE.jar:5.1.13.RELEASE]
    	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.1.13.RELEASE.jar:5.1.13.RELEASE]
    	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.1.13.RELEASE.jar:5.1.13.RELEASE]
    	at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.1.13.RELEASE.jar:5.1.13.RELEASE]
    	at javax.servlet.http.HttpServlet.service(HttpServlet.java:660) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.1.13.RELEASE.jar:5.1.13.RELEASE]
    	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.30.jar:9.0.30]
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.1.13.RELEASE.jar:5.1.13.RELEASE]
    	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.1.13.RELEASE.jar:5.1.13.RELEASE]
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.1.13.RELEASE.jar:5.1.13.RELEASE]
    	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.1.13.RELEASE.jar:5.1.13.RELEASE]
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:94) ~[spring-web-5.1.13.RELEASE.jar:5.1.13.RELEASE]
    	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.1.13.RELEASE.jar:5.1.13.RELEASE]
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.1.13.RELEASE.jar:5.1.13.RELEASE]
    	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.1.13.RELEASE.jar:5.1.13.RELEASE]
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
    	at com.alibaba.csp.sentinel.adapter.servlet.CommonFilter.doFilter(CommonFilter.java:110) ~[sentinel-web-servlet-1.7.0.jar:na]
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) [tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367) [tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:860) [tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1598) [tomcat-embed-core-9.0.30.jar:9.0.30]
    	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.30.jar:9.0.30]
    	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_211]
    	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_211]
    	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.30.jar:9.0.30]
    	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_211]

网上各种找，只有一种答案，说是什么fegin中的请求用的是原生的HttpURLConnection，需要用Apache HttpClient，因为openfegin引入的其他包都比较多，替换后，就会出现包冲突的问题。这个真的是困扰了我好久，都一度怀疑是版本问题了。最后是想着只传一个参数，就一个个接然后传，结果就好了。。。