集成springcloud Gateway（一）实现请求转发

新建一个项目

    4.0.0
    com.varz.boot
    gateway
    0.0.1-SNAPSHOT
    varz-boot-gateway
    Demo project for Spring Boot

    
        1.8
        UTF-8
        UTF-8
        2.3.7.RELEASE
        Hoxton.SR9
    

    


        
            org.springframework.cloud
            spring-cloud-starter-gateway
        

        
            org.springframework.boot
            spring-boot-starter-test
            test
            
                
                    org.junit.vintage
                    junit-vintage-engine
                
            
        
    

    
        
            
                org.springframework.cloud
                spring-cloud-dependencies
                ${spring-cloud.version}
                pom
                import
            
            
                org.springframework.boot
                spring-boot-dependencies
                ${spring-boot.version}
                pom
                import
            
        
    

注意：不能同时引入web依赖

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;

@SpringBootApplication
@EnableDiscoveryClient   //启用Gateway
public class VarzBootGatewayApplication {
    public static void main(String[] args) {
        SpringApplication.run(VarzBootGatewayApplication.class, args);
    }
}

采用properties或者yml，看各人喜好。
application.yml

server:
  port: 8084 # 端口
spring:
  cloud:
    gateway:
      routes:
        - id: admin-service
          uri: http://localhost:20912
          predicates:
            - Path=/api/admin/**
          filters:
            - StripPrefix=2

application.properties

server.port= 8084 # 端口
spring.cloud.gateway.routes[0].id=admin-service
spring.cloud.gateway.routes[0].uri=http://localhost:20912
spring.cloud.gateway.routes[0].predicates[0]=Path=/api/admin/**
spring.cloud.gateway.routes[0].filters[0]=StripPrefix=2

需注意配置的拼写，采用yml的话更需要检查缩进

上述的配置实现：访问：http://localhost:8084/api/admin/test，转发到：http://localhost:20912/test

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