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Nginx集群与SpringCloud Gateway集成Nacos的配置指南

news 2025/11/12 6:47:34

Nginx集群与SpringCloud Gateway集成Nacos的配置指南

最牛逼的SpringCloudAlibab微服务实战全栈开发

环境准备

Nginx 1.18+
JDK 8+
SpringCloud Gateway 2.2+
Nacos Server 1.4+

Nginx集群配置

安装与基础配置
在每台Nginx服务器上安装Nginx，修改nginx.conf主配置文件：

worker_processes auto;
events {worker_connections 10240;use epoll;
}http {upstream gateway_cluster {least_conn;server 192.168.1.101:9999 weight=5;server 192.168.1.102:9999 weight=5;keepalive 32;}
}

负载均衡策略
添加负载均衡参数：

upstream gateway_cluster {server 192.168.1.101:9999 max_fails=3 fail_timeout=30s;server 192.168.1.102:9999 max_fails=3 fail_timeout=30s;hash $request_uri consistent;
}

高并发优化
在http块中添加：

sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
client_max_body_size 20m;
gzip on;

SpringCloud Gateway配置

POM依赖

<dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId><version>2.2.5.RELEASE</version>
</dependency>
<dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-gateway</artifactId>
</dependency>

bootstrap.yml

spring:application:name: api-gatewaycloud:nacos:discovery:server-addr: 127.0.0.1:8848namespace: publicgateway:routes:- id: user-serviceuri: lb://user-servicepredicates:- Path=/api/user/**filters:- StripPrefix=1

动态路由配置
创建DynamicRouteConfig.java：

@Configuration
public class DynamicRouteConfig {@Beanpublic RouteDefinitionWriter routeDefinitionWriter() {return new InMemoryRouteDefinitionRepository();}
}

Nacos服务注册发现

Nacos Server配置
修改application.properties：

server.port=8848
nacos.naming.empty-service.auto-clean=true
nacos.naming.clean.empty-service.interval=60000

服务提供者配置
在服务提供者的application.yml中添加：

spring:cloud:nacos:discovery:cluster-name: DEFAULTephemeral: trueheart-beat-interval: 5000heart-beat-timeout: 15000

高并发调优

Gateway线程池配置
在application.yml中增加：

server:tomcat:max-threads: 1000min-spare-threads: 50

Nginx健康检查
配置主动健康检查：

upstream gateway_cluster {zone gateway 64k;server 192.168.1.101:9999 slow_start=30s;server 192.168.1.102:9999 slow_start=30s;health_check interval=5s uri=/health timeout=3s;
}

熔断限流配置

Gateway熔断设置
添加Resilience4J依赖后配置：

spring:cloud:gateway:routes:- id: circuitbreaker_routeuri: lb://user-servicepredicates:- Path=/api/user/**filters:- name: CircuitBreakerargs:name: myCircuitBreakerfallbackUri: forward:/fallback

Redis限流配置
集成Redis限流过滤器：

@Bean
public RedisRateLimiter redisRateLimiter() {return new RedisRateLimiter(10, 20, 1);
}

监控与日志

Prometheus监控
添加监控端点：

management:endpoints:web:exposure:include: prometheus,health,infometrics:tags:application: ${spring.application.name}

Nginx日志格式化
配置访问日志格式：

log_format main '$remote_addr - $remote_user [$time_local] "$request" ''$status $body_bytes_sent "$http_referer" ''"$http_user_agent" "$http_x_forwarded_for"';
access_log /var/log/nginx/access.log main buffer=32k flush=5s;