网关#
约 158 个字 2 行代码 预计阅读时间 3 分钟
网关的作用#
- 反向代理
- 鉴权
- 流量控制
- 熔断
- 日志监控
Spring Cloud Gateway入门案例#
创建路由模块:
项目创建成功，pom.xml文件如下：
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>3.3.1</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.luguosong</groupId>
<artifactId>gateway-hello</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>gateway-hello</name>
<description>gateway-hello</description>
<url/>
<licenses>
<license/>
</licenses>
<developers>
<developer/>
</developers>
<scm>
<connection/>
<developerConnection/>
<tag/>
<url/>
</scm>
<properties>
<java.version>17</java.version>
<spring-cloud.version>2023.0.2</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-gateway</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
在spring boot配置文件中配置网关路由：
YAML
server:
port: 8100
spring:
application:
name: gateway-hello
cloud:
gateway:
routes:
- id: gateway-hello
uri: http://localhost:8101/
predicates:
- Path=/**
创建端口号为8101的测试目标模块。
通过 http://localhost:8101/hello 可以直接访问目标服务（实际开发中前端不会直接访问目标服务）
现在有了网关，可以通过网关访问目标服务：http://localhost:8100/hello