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spring cloud gateway x响应日志 spring cloud gateway discovery

spring cloud gateway x响应日志 spring cloud gateway discovery,spring cloud gateway x响应日志 spring cloud gateway discovery_spring,第1张

然后需要引入nacos的discovery和config两个依赖(版本和其他模块对应即可,一般直接引入common模块即可):

<!--        服务注册/发现-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>

        <!--        配置中心来做配置管理-->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
        </dependency>

然后配置下注册中心地址和配置中心地址:
application.properties:

# 应用名称
spring.application.name=gulimall-gateway
spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848

创建个bootstrap.properties:

spring.application.name=gulimall-gateway
spring.cloud.nacos.config.server-addr=127.0.0.1:8848

然后启动项目:

spring cloud gateway x响应日志 spring cloud gateway discovery,spring cloud gateway x响应日志 spring cloud gateway discovery_spring_02,第2张

因为我是引入的common模块,那个模块引入了mybatisplus相关依赖,需要配置数据库信息,解决方法直接在启动类上:

@SpringBootApplication(exclude = DataSourceAutoConfiguration.class)

再次启动即可成功。

使用示例(创建个application.yml):

spring:
  cloud:
    gateway:
      routes:
        - id: to_baidu
          uri: https://www.baidu.com
          predicates:
            - Query=to,baidu #如果携带参数to=baidu则匹配成功,跳转至uri
        - id: to_qq
          uri: https://www.qq.com
          predicates:
            - Query=to,qq

访问即可看到效果:

http://localhost:88/?to=baidu
http://localhost:88/?to=qq

也可以用编码方式:

package com.atguigu.springcloude.config;

import org.springframework.cloud.gateway.route.RouteLocator;
import org.springframework.cloud.gateway.route.builder.RouteLocatorBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * @author baikunlong
 * @date 2020/12/9 9:37
 * 配置路由的第二种方式:采用编码
 */
@Configuration
public class GatewayConfig {
    @Bean
    public RouteLocator myRouteLocator(RouteLocatorBuilder builder){
        RouteLocatorBuilder.Builder routes = builder.routes();
        // 如果路径包含/guonei则跳转至uri
        routes.route("baidu",r->r.path("/guonei").uri("http://news.baidu.com/guonei"));
        return routes.build();
    }
    @Bean
    public RouteLocator myRouteLocator2(RouteLocatorBuilder builder){
        RouteLocatorBuilder.Builder routes = builder.routes();
        routes.route("baidu2",r->r.path("/guoji").uri("http://news.baidu.com/guoji"));
        return routes.build();
    }
}

可以自定义过滤器:

package com.atguigu.springcloude.filter;

import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

import java.time.LocalDateTime;

/**
 * @author baikunlong
 * @date 2020/12/9 11:07
 */
@Component
@Slf4j
public class MyLogGatewayFilter implements GlobalFilter, Ordered {
    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        log.info("进入我的过滤器:"+ LocalDateTime.now());
        if(exchange.getRequest().getQueryParams().getFirst("uname")==null){
            log.info("用户名为空,禁止访问");
            exchange.getResponse().setStatusCode(HttpStatus.NOT_ACCEPTABLE);
            return exchange.getResponse().setComplete();
        }
        return chain.filter(exchange);
    }


    @Override
    public int getOrder() {
        //过滤器的顺序,越小等级越高
        return 0;
    }
}

其他示例:

spring:
  application:
    name: cloud-gateway
  cloud:
    gateway:
      discovery:
        locator:
          enabled: true #开启从注册中心动态创建路由的功能,利用微服务名进行路由
#      配置路由的第一种方式:采用yml配置(这种简单)
      routes:
        - id: payment_routh #payment_route    #路由的ID,没有固定规则但要求唯一,建议配合服务名
#          uri: http://localhost:8001          #匹配后提供服务的路由地址
          uri: lb://cloud-payment-service #匹配后提供服务的路由地址
          predicates:
            - Path=/payment/get/**         # 断言,路径相匹配的进行路由

        - id: payment_routh2 #payment_route    #路由的ID,没有固定规则但要求唯一,建议配合服务名
#          uri: http://localhost:8001          #匹配后提供服务的路由地址
          uri: lb://cloud-payment-service #匹配后提供服务的路由地址
#          断言的所有规则些在该项目启动时会打印
          predicates:
            - Path=/payment/lb/**         # 断言,路径相匹配的进行路由
#            - After=2020-12-09T10:51:37.485+08:00[Asia/Shanghai]  #在多久之后才能访问系统
#            Between就可以做秒杀活动,只有该时间段内才能访问系统,否则都是404
#            - Between=2020-12-09T10:51:37.485+08:00[Asia/Shanghai],2020-12-09T11:51:37.485+08:00[Asia/Shanghai]
#            - Cookie=username,zzyy  #必须携带username=zzyy的cookie,像这样:curl http://localhost:9527/payment/lb --cookie "username=zzyy"
#            - Header=X-Request-Id, \d+  # 请求头要有X-Request-Id属性并且值为整数的正则表达式,像这样curl http://localhost:9527/payment/lb -H "X-Request-Id:111"
            # 还有一些有用到再看



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