SpringBoot：Gateway引入初体验

矫情吗；* 2023-01-03 12:47 140阅读 0赞

我们暂时只做一个初步的引入，`路由`和`断言`之类的规则配置，在后续文章中再做讲解。

*  pom

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
    
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
    
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-gateway</artifactId>
        </dependency>
    </dependencies>

*  配置文件

spring:
      application:
        name: gateway-service
      cloud:
        gateway:
          discovery:
            locator:
              enabled: true
              # 路由中的大小转为小写
              lower-case-service-id: true
    
    server:
      port: 65000
    
    eureka:
      client:
        serviceUrl:
          defaultZone: http://localhost:20000/eureka/
    
    management:
      security:
        enabled: false
      endpoints:
        web:
          exposure:
            include: "*"
      endpoint:
        health:
          show-details: always

*  application启动类

@EnableDiscoveryClient
    @SpringBootApplication
    @EnableFeignClients
    public class GatewayApplication { 
    
        public static void main(String[] args) { 
            SpringApplication.run(GatewayApplication.class, args);
        }
    
    }

我们分别启动`Eureka`、两台`Feign-client`和`Gateway`，然后访问`localhost:65000/actuator/gateway/routes`，可以看到它默认的路由规则

![在这里插入图片描述][20210108095426148.png]  
然后访问`localhost:65000/feign-client/sayHi`(**sayHi**是之前feign组件中创建的接口)，可以看到feign-client的接口返回结果，而且我们重复请求该接口，可以看到它会在40005和40006之间轮询，说明**负载均衡**已经生效了  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2x0MzI2MDMwNDM0_size_16_color_FFFFFF_t_70]

到这里Gateway的基础引用就结束了~

[20210108095426148.png]: /images/20221119/c767c29c33cf4c459743ec2ea9c936d0.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2x0MzI2MDMwNDM0_size_16_color_FFFFFF_t_70]: /images/20221119/038ea9ac76ea4f7a9cf693e7ff527efd.png