33、Spring Cloud网关Gateway

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<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>spring-cloud</groupId>
    <artifactId>sc-gateway</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>sc-gateway</name>
    <url>http://maven.apache.org</url>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.4.RELEASE</version>
    </parent>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Finchley.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

        </dependencies>
    </dependencyManagement>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-gateway</artifactId>
        </dependency>

    </dependencies>
</project>

可以看到spring cloud gateway是从spring cloud 2.x后才有的

2、新建springboot启动类

package sc.gateway;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class GatewayApplication {

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

}

3、编写配置文件application.yml

server:
    port: 8600

spring:
    application:
        name: sc-gateway
    cloud:
        gateway:
            routes:
            - id: baidu
                uri: http://www.baidu.com/
                predicates:
                    - Path=/baidu/**
            - id: jianshu
                uri: http://www.jianshu.com/
                predicates:
                    - Path=/jianshu/**

备注：gateway的配置项参考org.springframework.cloud.gateway.config.GatewayProperties类

Spring Cloud Gateway提供了两种配置路由规则的方式：
方式一、通过@Bean自定义RouteLocator

@Bean
public RouteLocator customRouteLocator(RouteLocatorBuilder builder) {
        return builder.routes()
                            //basic proxy
                            .route("baidu", r -> r.path("/baidu ")
                            .uri("http://www.baidu.com.cn/")
                            ).build(); 
}

方式二、通过属于文件或者yml文件配置

spring:
    cloud:
        gateway:
            routes:
            - id: baidu
                uri: http://www.baidu.com /
                predicates:
                - Path=/ baidu

4、启动项目，并验证

访问http://127.0.0.1:8600/jianshu转发到https://www.jianshu.com/

访问http://127.0.0.1:8600/baidu转发到https://www.baidu.com/

访问http://127.0.0.1:8600/sina转发到https://www.sina.com.cn/

33、Spring Cloud网关Gateway

标签：pre   work   原理图   apach   net   mic   参考   jar   tps   

原文地址：https://blog.51cto.com/13538361/2492024