spring cloud 搭建（路由中心）

创建路由中心：

选择Spring Initializr模板

选择Spring Cloud Routing-->Gateway

pom文件

（这里吐槽一下，记得是spring-cloud-starter-netflix-eureka-client）

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.5.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.test</groupId>
    <artifactId>cloud-gateway</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>cloud-gateway</name>
    <description>Demo project for Spring Boot</description>
 
    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Hoxton.SR3</spring-cloud.version>
    </properties>
 
    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-gateway</artifactId>
        </dependency>
        <!--    配置中心的客户端    -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-config-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.retry</groupId>
            <artifactId>spring-retry</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
<!--      这里是starter！！！ 之前引用了没有starter的，死活没到注册中心，花了两天时间，终于查到这个包问题！！坑爹！！！-->
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
    </dependencies>
 
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
 
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
 
</project>

添加服务注解：@EnableDiscoveryClient

application.yml

（不配置routes的话，访问

http://localhost:9030/service1/test/hello  成功

http://localhost:9030/s1/test/hello 是无法访问的

配置后，两种方式都能访问）

server:
  port: 9030
 
spring:
  application:
    name: cloud-gateway
  cloud:
    gateway:
      discovery:
        locator:
          enabled: true
          lower-case-service-id: true
# 不配置routes，则默认使用服务名
      routes:
        - id: service1
          uri: lb://service1
          predicates:
          - Path=/s1/**
          filters:
          - StripPrefix=1
        - id: service2
          uri: lb://service2
          predicates:
          - Path=/s2/**
          filters:
          - StripPrefix=1
eureka:
  client:
    service-url:
      defaultZone: ${registry.url}
logging:
  level:
    org.springframework.cloud.gateway: trace
    org.springframework.http.server.reactive: debug
    org.springframework.web.reactive: debug
    reactor.ipc.netty: debug

bootstrap.yml

spring:
  http:
    encoding:
      charset: UTF-8
      enabled: true
      force: true
  cloud:
    config:
      uri: http://${host:localhost}:9020
      name: config
      profile: ${active:dev}
 

然后，我们按照顺序启动。

1 注册中心，配置中心

2 路由中心， service1，service2

eureka

我们访问服务（两种访问都可以）

由于service1访问的是dev，

service2访问的是prod，

所以他们显示的信息不一样，这说明我们切换配置文件成功了。