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server:

  port: 9999

spring:

  application:

    name: gateway-server

  cloud:

    nacos:

      discovery:

        server-addr: 192.168.229.7:8848

    gateway:

      discovery:

        locator:

          enabled: true ##开启了会自动匹配路由规则

      routes: ##配置了手动路由规则，上面的自动开启失效

        - id: nacos-provider

          uri: lb://nacos-provider

          predicates:

            - Path=/mmm/**

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@RestController

@RequestMapping("/mmm")

public class MMMController {

    @Value("${server.port}")

    private String port;

    @GetMapping("/get")

    public String get(){

        return port;

    }

}

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<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>

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<?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 http://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>2.2.13.RELEASE</version>

        <relativePath/> <!-- lookup parent from repository -->

    </parent>

    <groupId>com.mmm.springcloud.study</groupId>

    <artifactId>spring-cloud-gateway-demo</artifactId>

    <version>1.0-SNAPSHOT</version>

    <properties>

        <maven.compiler.source>8</maven.compiler.source>

        <maven.compiler.target>8</maven.compiler.target>

        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

    </properties>

    <dependencies>

        <dependency>

            <groupId>com.alibaba.cloud</groupId>

            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>

            <version>2.2.5.RELEASE</version>

        </dependency>

        <dependency>

            <groupId>org.springframework.cloud</groupId>

            <artifactId>spring-cloud-starter-gateway</artifactId>

            <version>2.2.3.RELEASE</version>

        </dependency>

    </dependencies>

</project>