springcloud gateway动态路由实现，mysql存储配置

1、mysql数据库表结构

2、pom.xml依赖

<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<!-- springcloud gateway网关依赖 -->
 <dependency>
     <groupId>org.springframework.cloud</groupId>
     <artifactId>spring-cloud-starter-gateway</artifactId>
 </dependency>
 <dependency>
     <groupId>org.springframework.cloud</groupId>
     <artifactId>spring-cloud-gateway-webflux</artifactId>
</dependency>
    
 <!-- 集成redis -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

3、application.yml添加

#开启端点
management:
  endpoints:
    web:
      exposure:
        include: '*'
  security:
    enabled: false

4、核心配置类，加载路由配置到redis，官网核心包从redis获取路由配置，提高效率

import com.alibaba.fastjson.JSON;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.gateway.route.RouteDefinition;
import org.springframework.cloud.gateway.route.RouteDefinitionRepository;
import org.springframework.cloud.gateway.support.NotFoundException;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;

import java.util.ArrayList;
import java.util.List;

/**
 *将定义好的路由表信息通过此类读写到redis中
 */
@Component
public class RedisRouteDefinitionRepository implements RouteDefinitionRepository {

    public static final String  GATEWAY_ROUTES = "gateway:routes";
    @Autowired
    private RedisTemplate<String,Object> redisTemplate;

    //请注意，此方法很重要，从redis取路由信息的方法，官方核心包要用，核心路由功能都是从redis取的
    @Override
    public Flux<RouteDefinition> getRouteDefinitions() {
        List<RouteDefinition> routeDefinitions = new ArrayList<>();
        redisTemplate.opsForHash().values(GATEWAY_ROUTES).stream().forEach(routeDefinition -> {
            routeDefinitions.add(JSON.parseObject(routeDefinition.toString(), RouteDefinition.class));
        });
        return Flux.fromIterable(routeDefinitions);
    }

    @Override
    public Mono<Void> save(Mono<RouteDefinition> rout