SpringCloud Gateway的基本入门和注意点详解

@RestController
@Slf4j
public class ProducerController {
  @RequestMapping("/hi")
  public String hi(@RequestParam String name) {
    log.info("[client服务] [hi方法]收到请求");
    return "hi " + name + ",i am from service-client";
  }
}

 <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.0.4.RELEASE</version>
    <relativePath/>
 </parent>
 <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    <java.version>1.8</java.version>
</properties>
<dependencies>
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-gateway</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
    </dependency>
</dependencies>

package com.zgd.springcloud.gateway;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;

@EnableEurekaClient
@SpringBootApplication
public class App {
    public static void main(String[] args) {
        SpringApplication.run(App.class, args);
    }
}

hi zgd,i am from service-client

spring:
  cloud:
    gateway:
      #可以根据请求参数,cookie,host,请求时间,请求头等进行校验判断路由, 下面根据先后顺序转发
      routes:
        - id: host_route
          uri: Http://httpbin.org:80/get
          predicates:
            - Path=/zzzgd*;q=0.8", 
    "Accept-Encoding": "gzip, deflate, br", 
    "Accept-Language": "zh-CN,zh;q=0.9", 
    "Connection": "close", 
    "Cookie": "SL_G_WPT_TO=zh; SL_GWPT_Show_Hide_tmp=undefined; SL_wptGlobTipTmp=undefined", 
    "Forwarded": "proto=http;host=\"localhost:8088\";for=\"0:0:0:0:0:0:0:1:55782\"", 
    "Host": "httpbin.org", 
    "Upgrade-Insecure-Requests": "1", 
    "User-Agent": "Mozilla/5.0 (windows NT 10.0; WOW64) AppleWEBKit/537.36 (Khtml, like Gecko) Chrome/70.0.3538.110 Safari/537.36", 
    "X-Forwarded-Host": "localhost:8088"
  }, 
  "origin": "0:0:0:0:0:0:0:1, 119.147.213.42", 
  "url": "http://localhost:8088/get?name=zgd"
}

routes:
 - id: host_route
   uri: http://httpbin.org:80/get
   predicates:
     - Host=**.csdn.** # 请求域名携带csdn的,则转发
 - id: query_route
   uri: http://httpbin.org:80/get
   predicates:
     - Query=username, zzz* # 请求参数含有username,且值满足zzz开头的,则转发(对值的匹配可以省略)
 - id: header_route
   uri: http://httpbin.org:80/get
   predicates:
     - Header=request, \d+ # 如果请求头含有request,且为数字,则转发
 - id: cookie_route
      uri: http://httpbin.org:80/get
      predicates:
        - Cookie=name, zzzgd # 如果携带cookie,参数名为name,值为zzzgd,则转发
    - id: path_route
      uri: http://httpbin.org:80/get
      predicates:
        - Path=/zzzgd
@Configuration
public class GateWayConfig {
  @Bean
  public RouteLocator routeLocator(RouteLocatorBuilder builder) {
    return builder.routes()
            .route(r -> r.path("/fluent/**").and().query("name")
                    .uri("http://httpbin.org:80/get"))
            .build();
  }
}