环境

spring-cloud-gateway 3.1.0

springGateway整合skywalking

skywalking 默认是不整合springGateway的,需要手动拷贝skywalking optional-plugins下的
apm-spring-cloud-gateway-N.x-plugin-8.13.0.jar
和
apm-spring-webflux-5.x-plugin-8.13.0.jar
架包拷贝到plugins目录下
gateway架包的选择根据springgateway的版本进行选择

配置请求标识

经过上一步配置的请求会存在调用链路,但是链路仅到网关,不会到后续服务

处理方法

1. 服务中引入架包
   pom

        <dependency>
            <groupId>org.apache.skywalking</groupId>
            <artifactId>apm-toolkit-trace</artifactId>
            <version>8.14.0</version>
        </dependency>

        <dependency>
            <groupId>org.apache.skywalking</groupId>
            <artifactId>apm-toolkit-webflux</artifactId>
            <version>8.14.0</version>
        </dependency>

2. 配置链路id

package com.kittlen.gateway.filter;

import org.apache.skywalking.apm.toolkit.trace.TraceContext;
import org.apache.skywalking.apm.toolkit.webflux.WebFluxSkyWalkingOperators;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

/**
 * @author kittlen
 * @version 1.0
 * @date 2023/9/5 13:41
 * skywalking 全链路配置
 */
@Component
public class PutTraceIdIntoResponseHeaderFilter implements GlobalFilter {

    String xTraceIdKey = "x-trace-id";

    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        String traceId = WebFluxSkyWalkingOperators.continueTracing(exchange, TraceContext::traceId);
        exchange.getResponse().getHeaders().set(xTraceIdKey, traceId);
        return chain.filter(exchange);
    }
}