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Springcloud GateWay網(wǎng)關(guān)配置過(guò)程圖解

 更新時(shí)間:2020年12月07日 11:57:20   作者:夢(mèng)澤千秋  
這篇文章主要介紹了Springcloud GateWay網(wǎng)關(guān)配置過(guò)程圖解,文中通過(guò)示例代碼介紹的非常詳細(xì),對(duì)大家的學(xué)習(xí)或者工作具有一定的參考學(xué)習(xí)價(jià)值,需要的朋友可以參考下

一般為了不暴露自己的端口信息等,會(huì)選擇架構(gòu)一個(gè)網(wǎng)關(guān)在前面進(jìn)行阻擋,起到保護(hù)的作用。附上一張工作示列圖。

1.配置網(wǎng)關(guān)9527

gateway作為網(wǎng)關(guān)需要和其他的應(yīng)用一樣需要注冊(cè)進(jìn)eureka中進(jìn)行管理,先創(chuàng)建應(yīng)用gateway9527

pom文件,關(guān)鍵是gateway依賴

<dependencies>
    <dependency>
      <groupId>com.bai</groupId>
      <artifactId>cloud-api-common</artifactId>
      <version>${project.version}</version>
    </dependency>
    <!--gateway-->
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-gateway</artifactId>
    </dependency>
    <!--eureka client-->
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
    </dependency>
    <!--熱部署-->
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-devtools</artifactId>
      <scope>runtime</scope>
      <optional>true</optional>
    </dependency>
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <optional>true</optional>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-test</artifactId>
      <scope>test</scope>
    </dependency>
  </dependencies>

yml文件配置

server:
 port: 9527

spring:
 application:
  name: cloud-gateway
 cloud:
  gateway:
   discovery:
    locator:
     enabled: true # 開(kāi)啟從注冊(cè)中心動(dòng)態(tài)創(chuàng)建路由的功能,利用微服務(wù)名稱進(jìn)行路由
   routes:
    - id: payment_route # 路由的id,沒(méi)有規(guī)定規(guī)則但要求唯一,建議配合服務(wù)名
     #匹配后提供服務(wù)的路由地址
     #uri: http://localhost:8001
     uri: lb://cloud-payment-service
     predicates:
      - Path=/payment/get/** # 斷言,路徑相匹配的進(jìn)行路由

    - id: payment_route2
     #uri: http://localhost:8001
     uri: lb://cloud-payment-service
     predicates:
      - Path=/payment/sp/** #斷言,路徑相匹配的進(jìn)行路由
eureka:
 instance:
  hostname: cloud-gateway-service
 client:
  fetch-registry: true
  register-with-eureka: true
  service-url:
   defaultZone: http://eureka7001.com:7001/eureka/

主啟動(dòng)類正常配置

@SpringBootApplication
@EnableEurekaClient
public class GateWay9527 {
  public static void main(String[] args) {
    SpringApplication.run(GateWay9527.class,args);
  }
}

2.配置路由兩種方式

1)yml文件格式(推薦)

spring:
 application:
  name: cloud-gateway
 cloud:
  gateway:
   discovery:
    locator:
     enabled: true # 開(kāi)啟從注冊(cè)中心動(dòng)態(tài)創(chuàng)建路由的功能,利用微服務(wù)名稱進(jìn)行路由
   routes:
    - id: payment_route # 路由的id,沒(méi)有規(guī)定規(guī)則但要求唯一,建議配合服務(wù)名
     #匹配后提供服務(wù)的路由地址
     #uri: http://localhost:8001
     uri: lb://cloud-payment-service
     predicates:
      - Path=/payment/get/** # 斷言,路徑相匹配的進(jìn)行路由

    - id: payment_route2
     #uri: http://localhost:8001
     uri: lb://cloud-payment-service
     predicates:
      - Path=/payment/sp/** #斷言,路徑相匹配的進(jìn)行路由
      - After=2020-11-09T11:09:52.794+08:00[Asia/Shanghai]
      - Cookie=username,bai  #帶Cookie,并且username的值為bai
#      - Header=X-Request-Id,\d+ #請(qǐng)求頭要有 X-Request-Id屬性并且值為整數(shù)的正則表達(dá)式

2)通過(guò)config配置類實(shí)現(xiàn)

@Configuration
public class RouteConfig {
  @Bean
  public RouteLocator customerRoute(RouteLocatorBuilder builder){
    RouteLocatorBuilder.Builder routes = builder.routes();
     routes.route("payment_route1",
         r -> r.path("/guonei").uri("http://news.baidu.com/guonei")).build();
    return routes.build();
  }
  @Bean
  public RouteLocator bokeRoute(RouteLocatorBuilder builder){
    RouteLocatorBuilder.Builder routes = builder.routes();
    routes.route("payment_route2",r->r.path("/boke").uri("http://www.cnblogs.com/lin530/")).build();
    return routes.build();
  }
}

3.斷言(Predicate)

相當(dāng)于多種限制,只有通過(guò)驗(yàn)證才能夠訪問(wèn)到對(duì)應(yīng)的方法

- id: payment_route2
     #uri: http://localhost:8001
     uri: lb://cloud-payment-service
     predicates:
      - Path=/payment/sp/** #斷言,路徑相匹配的進(jìn)行路由
      - After=2020-11-09T11:09:52.794+08:00[Asia/Shanghai]
      - Cookie=username,bai  #帶Cookie,并且username的值為bai
#      - Header=X-Request-Id,\d+ #請(qǐng)求頭要有 X-Request-Id屬性并且值為整數(shù)的正則表達(dá)式

不同的方法可以配置不同的斷言,此處的斷言需要滿足路徑對(duì),after時(shí)間后,cookie帶上正確的用戶名才可以訪問(wèn)到,用cmd測(cè)試

其他還有很多斷言,請(qǐng)對(duì)照文檔自行研究

4)過(guò)濾(filter)

對(duì)訪問(wèn)加上限制,通過(guò)驗(yàn)證才可以訪問(wèn)

新建過(guò)濾配置類

@Component
@Slf4j
public class GatewayGlobalFilter implements GlobalFilter, Ordered {
  @Override
  public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
    log.info("***time is :"+new Date());
    String uname = exchange.getRequest().getQueryParams().getFirst("uname");
    if(uname==null){

      log.info("沒(méi)有用戶名,出現(xiàn)錯(cuò)誤:o(╥﹏╥)o");
      exchange.getResponse().setStatusCode(HttpStatus.NOT_ACCEPTABLE);
      return exchange.getResponse().setComplete();
    }
    return chain.filter(exchange);
  }

  /*
  設(shè)置過(guò)濾器優(yōu)先級(jí),越小優(yōu)先級(jí)越大
   */
  @Override
  public int getOrder() {
    return 0;
  }
}

訪問(wèn)方式帶上參數(shù),

本篇所有代碼均在GitHub:

https://github.com/MaTsukun/springcloud2020

以上就是本文的全部?jī)?nèi)容,希望對(duì)大家的學(xué)習(xí)有所幫助,也希望大家多多支持腳本之家。

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