Spring Cloud Gateway path 설정

Spring 프로젝트 생성 시 Lombok과 Gateway를 추가해 준다.

자바 8버전 기준!

 

 

application.yml에서 기본 설정가능

server:
  port: 8000 # local 서버
spring:
  application:
    name: cloudApiGateway-service
  cloud:
    gateway:
      routes:
        - id: first-service
          uri: http://localhost:8000/ #endpoint uri
          predicates: # by-pass
            - Path=/employee/**
          filters: # context path별로 필터 적용 가능
            - AddRequestHeader=first-request, 1-request-header-test
            - AddResponseHeader=first-response, 1-response-header-test
            - CustomFilter
        - id: second-service
          uri: http://localhost:8000/
          predicates: 
            - Path=/consumer/**
          filters:
            - AddRequestHeader=second-request, 2-request-header-test
            - AddResponseHeader=second-response, 2-response-header-test
            - CustomFilter
# rewrite Path (path 지우고 by-pass)
        - id: rewritepath_route 
          uri: http://localhost:8000/
          predicates:
           - Path=/maps/**
          filters:
           - RewritePath=/maps/(?<segment>.*), /$\{segment}
# rewrite Path (plus >> minus로 치환)
        - id: third-service
          uri: http://localhost:8000/
          predicates:
            - Path=/test/**
          filters:
            - RewritePath=/plus, /minus

 

 

테스트를 위해 local로 보내고 Controller를 따로 만들어 받아 보았다.

firstController.java (path TEST)

import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.*;

@RestController
@RequestMapping("/employee")
@Slf4j
public class FirstServiceController {

    @GetMapping("/message")
    public String test() {
        return "Hello You are in First Service";
    }

    @GetMapping("/header")
    public String message(@RequestHeader("Host") String header){
        log.info("header > "+ header);
        return "ok-first";
    }

    @GetMapping("/check")
    public String check(){
        return "hi check first";
    }

}

secondController.java (path TEST)

import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.*;

@RestController
@RequestMapping("/consumer")
@Slf4j
public class SecondServiceController {

    @GetMapping("/message")
    public String test() {
        return "Hello You are in Second Service";
    }

    @GetMapping("/header")
    public String message(@RequestHeader("Host") String header){
        log.info("header > "+ header);
        return "ok-second";
    }

    @GetMapping("/check")
    public String check(){
        return "hi check second";
    }

}

/message

/header

 

 

thirdController.java (re-write TEST)

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import java.security.Principal;

@RestController
public class Controller {

    @GetMapping("/direct/test")
    public String indexing() {
        return "success";
    }

    @GetMapping("/test/minus")
    public String minus() {
        return "come here";
    }
}

/maps/direct/test (/maps 제거 후 /direct/test로 이동)

/plus (/minus로 치환)