GateWay动态路由

之前我们使用网关使用了服务的ip地址，但是这种配置不利于流量的分散

效果图

接口调用了三次，我启动了两个服务，一个服务打印了两次，另一个服务打印了一次，说明实现了负载的功能

网关代码部分

<?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>
 
    <groupId>com.java</groupId>
    <artifactId>gateway-service</artifactId>
    <version>1.0-SNAPSHOT</version>
 
    <!--spring boot 父启动器依赖-->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.6.RELEASE</version>
    </parent>
 
    <dependencyManagement>
        <!--spring cloud依赖版本管理-->
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Greenwich.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
 
    <dependencies>
        <!--客户端-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <!--GateWay 网关-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-gateway</artifactId>
        </dependency>
    </dependencies>
 
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
        <finalName>gateway-service</finalName>
    </build>
 
 
 
 
</project>

server.port=2001
 
eureka.instance.hostname=127.0.0.1
eureka.client.service-url.defaultZone=http://${eureka.instance.hostname}:8761/eureka
 
spring.application.name=gateway-service
eureka.instance.prefer-ip-address=true
eureka.instance.ip-address=127.0.0.1
eureka.instance.instance-id=${eureka.instance.ip-address}:${server.port}
spring.cloud.loadbalancer.ribbon.enabled=false
 
spring.cloud.gateway.routes[0].id=qiuxie_route
spring.cloud.gateway.routes[0].uri=lb://vipday-service
spring.cloud.gateway.routes[0].predicates[0]=Path=/**
 
logging.level.com.java=debug
logging.level.web=debug
spring.devtools.add-properties=false

package com.java;
 
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
 
/**
 * @Description:
 * @Author: qiuxie
 * @Create: 2023/8/17 17:45
 */
@EnableDiscoveryClient
@SpringBootApplication
public class GatewayApplication {
    public static void main(String[] args) {
        SpringApplication.run(GatewayApplication.class,args);
    }
}