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1.项目目录：
创建项目gateway作为父类
2.代码实现：
父类依赖
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.6.2</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.cxh</groupId>
<artifactId>gateway</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>gateway</name>
<description>Demo project for Spring Boot</description>
<packaging>pom</packaging>
<properties>
<java.version>8</java.version>
<spring-cloud-alibaba-dependencies.version>2021.1</spring-cloud-alibaba-dependencies.version>
<spring-cloud-dependencies.version>2021.0.0</spring-cloud-dependencies.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud-dependencies.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-alibaba-dependencies</artifactId>
<version>${spring-cloud-alibaba-dependencies.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>创建module项目gateway-client
添加依赖
<parent>
<groupId>com.cxh</groupId>
<artifactId>gateway</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.cxh</groupId>
<artifactId>gateway-client</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>gateway-client</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<!--服务注册-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
<version>0.2.1.RELEASE</version>
</dependency>
<!--服务调用-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
yml配置
server:
port: 8002
spring:
application:
name: gateway-client #服务名
profiles:
active: dev #环境设置
cloud:
nacos:
discovery:
server-addr: 127.0.0.1:8848 #nacos服务注册
控制层
@RestController
public class ClientController {
@Value("${server.port}")
private String port;
@RequestMapping("/index")
public String index(){
return "gateway-client端口：" + port;
}
}启动类添加注解
@SpringBootApplication
@EnableDiscoveryClient
public class GatewayClientApplication {
public static void main(String[] args) {
SpringApplication.run(GatewayClientApplication.class, args);
}
}创建module项目gateway-service
添加依赖
<parent>
<groupId>com.cxh</groupId>
<artifactId>gateway</artifactId>
<version>0.0.1-SNAPSHOT</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.cxh</groupId>
<artifactId>gateway-service</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>gateway-service</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-gateway</artifactId>
<version>3.0.4</version>
</dependency>
<!--服务注册/发现中心依赖-->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>
<!--服务的配置中心依赖-->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-feign</artifactId>
<version>1.4.3.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-loadbalancer</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
<version>2.2.10.RELEASE</version>
</dependency>
</dependencies>
yml配置
server:
port: 8001
spring:
application:
name: gateway-service #服务名
profiles:
active: dev #环境设置
cloud:
gateway:
routes:
# 透传服务
- id: gateway-client #设置路由id
uri: lb://gateway-client #设置路由的url lb://nacos服务注册名称
predicates:
- Path=/client/** #路径匹配规则
filters:
- StripPrefix=1
跨域配置
@Configuration
public class CorsConfig {
@Bean
public CorsWebFilter corsFilter() {
CorsConfiguration config = new CorsConfiguration();
config.addAllowedMethod("*");
config.addAllowedOrigin("*");
config.addAllowedHeader("*");
UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource(new PathPatternParser());
source.registerCorsConfiguration("/**", config);
return new CorsWebFilter(source);
}
}3.实现效果：
启动nacos后，再启动gateway-client, gateway-service项目，打开浏览器http://localhost:8001/client/index
返回信息：gateway-client端口：8002
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