SpringCloud之Gateway网关路由

1. 添加依赖

pom.xml文件添加如下配置：

<properties>
        <spring-cloud-gateway.version>2.2.2.RELEASE</spring-cloud-gateway.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-gateway</artifactId>
            <version>${spring-cloud-gateway.version}</version>
        </dependency>
    </dependencies>

2. 添加配置

#服务配置
server:
  port: 10000
  servlet:
    context-path: /

spring:
  application:
    name: spring-boot-gateway
  cloud:
    gateway:
      routes:
          #唯一的路由ID
        - id : fstdfs
          # 请求的地址
          uri: http://localhost:10600
          predicates:
            #允许访问的路径
            - Path=/file/**

3. 编写过滤器

package com.huzhengxing.filter;

import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

/**
 * @Auther: zhengxing.hu
 * @Date: 2020/3/23 16:20
 * @Description: 全局前置过滤器
 */
@Slf4j
@Component
public class Filter implements GlobalFilter, Ordered {
    
    


    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
    
    
        log.info("进入前置过滤器");
        return chain.filter(exchange).then(
                Mono.fromRunnable(() -> {
    
    
                    log.info("后置调用");
                })

        );
    }

    /**
     * 过滤级别，数字越小优先级越高
     * @return
     */
    @Override
    public int getOrder() {
    
    
        return Ordered.HIGHEST_PRECEDENCE;
    }


}