1.版本

1.1.springcloud版本  Hoxton.SR7

1.2.springboot版本 2.2.6.RELEASE

1.3.gateway引入

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

1.4.nacos引入

        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
            <version>2.2.0.RELEASE</version>
        </dependency>
        
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
            <version>2.2.0.RELEASE</version>
        </dependency>
        
   

1.5.sentinel引入

        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-alibaba-sentinel-gateway</artifactId>
            <version>2.2.5.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
            <version>2.2.5.RELEASE</version>
            <exclusions>
                <exclusion>
                    <groupId>com.alibaba</groupId>
                    <artifactId>fastjson</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>com.alibaba.csp</groupId>
            <artifactId>sentinel-transport-simple-http</artifactId>
            <version>1.8.0</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-webflux</artifactId>
        </dependency>
        <!-- 由于使用了sentinel将 配置push到nacos 需要引用 -->
        <dependency>
            <groupId>com.alibaba.csp</groupId>
            <artifactId>sentinel-datasource-nacos</artifactId>
            <version>1.8.0</version>
        </dependency>

2.配置文件

server:
  port: 9300

spring:
  application:
    # 服务逻辑名称
    name: demo-cloud-gateway

  cloud:
    nacos:
      # 配置中心
      config:
        server-addr: 127.0.0.1:8848
        file-extension: yaml
        refresh: true
        group: DEFAULT_GROUP
        namespace: 4d109a4d-f34d-4e86-9e39-c2d36db24b00

      # 注册中心
      discovery:
        server-addr: 127.0.0.1:8848
        namespace: 4d109a4d-f34d-4e86-9e39-c2d36db24b00
    sentinel:
      eager: true
      transport:
        dashboard: localhost:8080
        port: 8720
      datasource:
        ds:
          nacos:
            server-addr: localhost:8848
            dataId: ${spring.application.name}-flow-rules
            groupId: SENTINEL_GROUP
            namespace: 4d109a4d-f34d-4e86-9e39-c2d36db24b00
            # 规则类型，取值见：
            # org.springframework.cloud.alibaba.sentinel.datasource.RuleType
            rule-type: flow
            data-type: json