创建网关微服务

视频处理-添加网关gateway_Project

添加依赖

修改 gateway 服务的 pom.xml

<dependencies>
    <dependency>
        <groupId>top.it6666</groupId>
        <artifactId>common_utils</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    </dependency>
    <dependency>
        <groupId>com.alibaba.cloud</groupId>
        <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
    </dependency>

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

    <!--gson-->
    <dependency>
        <groupId>com.google.code.gson</groupId>
        <artifactId>gson</artifactId>
    </dependency>

    <!--服务调用-->
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-openfeign</artifactId>
    </dependency>
</dependencies>

创建 gateway 启动类

视频处理-添加网关gateway_ide_02

/**
 * @author BNTang
 */
@SpringBootApplication
@EnableDiscoveryClient
public class GateWayApplication {
    public static void main(String[] args) {
        SpringApplication.run(GateWayApplication.class, args);
    }
}

在 resources 当中创建配置文件 ​​application.yml​​

logging:
  pattern:
    console: "%d{HH:mm:ss.SSS} %clr(%5p) %clr(-){faint} %clr(%-80.80logger{79}){cyan} %clr(:) %m%n"

server:
  port: 9000

spring:
  application:
    # 此实例注册到服务端的name
    name: gateway
  cloud:
    nacos:
      discovery:
        server-addr: localhost:8848
    gateway:
      discovery:
        locator:
          enabled: true
      routes:
        - id: service-video
          uri: lb://service-video
          predicates:
            - Path=/service_video/**
        - id: service-vod
          uri: lb://service-vod
          predicates:
            - Path=/service_vod/**
        - id: service-upload
          uri: lb://service-upload
          predicates:
            - Path=/service_upload/**

在 gateway 当中添加跨域配置处理如下, 创建 config 包, 在该包下创建跨域处理配置

视频处理-添加网关gateway_Project_03

/**
 * @author BNTang
 */
@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);
    }
}

取消控制器上的跨域注解, 把前端请求地址改成网关请求地址如下图，Controller 跨域注解全部去除

视频处理-添加网关gateway_Project_04

修改前端为 gateway 请求地址

视频处理-添加网关gateway_跨域_05