SpringCloud整合Gateway

此篇文章讲解在之前使用的nacos的基础上整合Gateway，之前整合的nacos项目不在赘述
环境准备
1、启动nacos
2、准备服务A启动后注册到注册中心nacos中

下面创建gateway
1、创建一个spring boot项目，pom文件如下:

<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>4.0.0modelVersion>
	<parent>
		<groupId>org.springframework.bootgroupId>
		<artifactId>spring-boot-starter-parentartifactId>
		<version>2.1.15.RELEASEversion>
		<relativePath/> 
	parent>
	<groupId>com.mythicalgroupId>
	<artifactId>rosefinch-gatewayartifactId>
	<version>0.0.1-SNAPSHOTversion>
	<name>gatewayname>
	<description>小程序网关description>

	<properties>
		<java.version>1.8java.version>
		<spring-cloud.version>Greenwich.SR1spring-cloud.version>
	properties>

	<dependencies>
		<dependency>
			<groupId>org.springframework.cloudgroupId>
			<artifactId>spring-cloud-starter-gatewayartifactId>
		dependency>

		<dependency>
			<groupId>org.springframework.bootgroupId>
			<artifactId>spring-boot-starter-testartifactId>
			<scope>testscope>
		dependency>
		<dependency>
				<groupId>org.springframework.cloudgroupId>
				<artifactId>spring-cloud-starter-alibaba-nacos-discoveryartifactId>
		dependency>
		<dependency>
				<groupId>org.springframework.bootgroupId>
				<artifactId>spring-boot-starter-actuatorartifactId>
		dependency>
	dependencies>

	<dependencyManagement>
		<dependencies>
			<dependency>
				<groupId>org.springframework.cloudgroupId>
				<artifactId>spring-cloud-dependenciesartifactId>
				<version>${spring-cloud.version}version>
				<type>pomtype>
				<scope>importscope>
			dependency>
			
			<dependency>
				<groupId>org.springframework.cloudgroupId>
				<artifactId>spring-cloud-alibaba-dependenciesartifactId>
				<version>0.9.0.RELEASEversion>
				<type>pomtype>
				<scope>importscope>
			dependency>
		dependencies>
	dependencyManagement>

	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.bootgroupId>
				<artifactId>spring-boot-maven-pluginartifactId>
			plugin>
		plugins>
	build>
project>

2、application.yml文件如下:

server:
  port: 8083
spring:
  application:
    name: gateway
  cloud:
    nacos:
      discovery:
        server-addr: localhost:8848
        #指定 namespace,此id在nacos中创建一个命名空间即可生成，一定要与A服务中一致，不然gateway路由不到A服务
        namespace: 4c6a61af-7019-4bda-a83b-e4ebb8edcdd4
        #指定集群
        cluster-name: NJ
    gateway:
      discovery:
        locator:
          #让gateway通过服务发现组件找到其他的微服务
          enabled: true
management:
  endpoints:
    web:
      exposure:
        include: '*'
  endpoint:
    health:
      show-details: always

3、启动gateway服务

4、访问验证
rosefinch-web是A的服务名称
user/getAllUser是A的方法路径

http://127.0.0.1:8083/rosefinch-web/user/getAllUser
5、结果：
通过gateway访问到了A服务

这个只是实现了一下路由功能，后续会完善gateway的一些项目应用