源码，可直接下载

Gateway模块

Gateway 的父pom.xml

<?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>2.6.12</version><relativePath/> <!-- lookup parent from repository --></parent><packaging>pom</packaging><groupId>com.example</groupId><artifactId>gateway-demo</artifactId><version>0.0.1-SNAPSHOT</version><name>gateway-demo</name><description>gateway-demo</description><properties><java.version>1.8</java.version></properties><dependencyManagement><dependencies><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-alibaba-dependencies</artifactId><version>2021.0.4.0</version><type>pom</type><scope>import</scope></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>2021.0.4</version><type>pom</type><scope>import</scope></dependency></dependencies></dependencyManagement><modules><module>gateway</module></modules><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project>

Gateway 的pom.xml

<?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>2.7.17</version><relativePath/> &lt;!&ndash; lookup parent from repository &ndash;&gt;</parent>--><parent><artifactId>gateway-demo</artifactId><groupId>com.example</groupId><version>0.0.1-SNAPSHOT</version></parent><groupId>com.example</groupId><artifactId>gateway</artifactId><version>0.0.1-SNAPSHOT</version><name>gateway</name><description>gateway</description><properties><java.version>1.8</java.version></properties><dependencies><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-loadbalancer</artifactId></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-gateway</artifactId><exclusions><exclusion><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></exclusion></exclusions></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-bootstrap</artifactId></dependency><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId></dependency><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-openfeign</artifactId></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project>

添加注册中心和配置中心配置

spring:application:name: gateway-democloud:nacos:discovery:server-addr: localhost:8848config:file-extension: ymlserver-addr: localhost:8848

添加路由配置信息（放在配置中心）

# 此文件内容最好放到配置中心nacos中
spring:cloud:gateway:routes:- id: serviceDemouri: lb://service-demo# uri: http://www.baidu.compredicates:- Path=/springboottest/**filters:# 校验# 去除一个前缀 springboottest# 请求方式为 http://localhost:8081/springboottest/test- StripPrefix=1
logging:level:springfox: error
server:port: 8081

服务模块

添加一个service服务

# 使用和gateway相同的父pom.xml

<dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId></dependency><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-bootstrap</artifactId></dependency>
</dependencies>

// controller
@RestController
@RequestMapping(("test"))
public class TestController {@Value("${server.port}")private String port;@GetMapping()public String getPort() {return port;}
}

配置注册中心和配置中心

spring:application:name: service-democloud:nacos:config:server-addr: localhost:8848file-extension: ymldiscovery:server-addr: localhost:8848

配置中心的配置文件内容

#此文件内容最好放到配置中心nacos中
server:port: 8888

效果

不通过gateway访问

localhost:8888/test

通过gateway访问

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