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Spring Cloud zuul网关服务 一

上一篇进行Netflix Zuul 1.0 与 gateway的对比。今天来介绍一下 zuul的搭建及应用

Zuul 工程创建

工程创建 cloud-gateway-zuul。还是基于之前的工程

pom文件导入

<parent>
        <artifactId>spring-cloud-alibaba-basis</artifactId>
        <groupId>com.xian.cloud</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>cloud-gateway-zuul</artifactId>
    <name>网关服务zuul</name>

    <dependencies>
        <!-- 注册中心 -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        <!-- 配置中心 -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-alibaba-nacos-config</artifactId>
        </dependency>
        <!-- fengin 支持 -->
       <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- zuul -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-zuul</artifactId>
        </dependency>
    </dependencies>

创建GatewayZuulApplication启动类

package com.xian.cloud;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.netflix.zuul.EnableZuulProxy;
import org.springframework.cloud.openfeign.EnableFeignClients;

/**
 * <Description>
 *
 * @author xianliru@100tal.com
 * @version 1.0
 * @createDate 2019/10/29 10:52
 */
@EnableZuulProxy
@EnableFeignClients
@EnableDiscoveryClient
@SpringBootApplication
public class GatewayZuulApplication {

    public static void main(String[] args) {
        SpringApplication.run(GatewayZuulApplication.class,args);
    }
}

创建 bootstrap.yml

````

spring:

profiles:

active: dev

application:

name: gateway-zuul-server

cloud:

nacos:

config:

server-addr: 47.99.209.72:8848

file-extension: yaml

zuul:

host:

# 目标主机的最大连接数,默认值为200

max-total-connections: 1000

# 每个主机的初始连接数,默认值为20

max-per-route-connections: 200

routes:

discovery-server:

path: /server/

serviceId: cloud-discovery-server

client-common:

serviceId: cloud-discovery-client

sensitiveHeaders: X-ABC,Authorization

# 所有路由的默认Hystrix隔离模式(ExecutionIsolationStrategy)为SEMAPHORE。如果此隔离模式是首选,则zuul.ribbonIsolationStrategy可以更改为THREAD

ribbon-isolation-strategy: thread

# 这个属性意思,指定忽略的服务列表 * 代表忽略所有服务

ignored-services: '*'

# 字段比较敏感,不希望传递给下游微服务。 设置空没有要忽略的敏感字段。全部传给下游服务

sensitive-headers: X-ABC

ribbon:

eager-load:

# 强制加载,不设置会进行懒加载。spring 第一次请求会非常慢

enabled: true

```

参数

  • zuul.host.max-total-connections 目标主机的最大连接数。
  • zuul.host.max-per-route-connections 每个主机的初始连接数。

这个俩个参数是zuul的优化后的属性值,如果想有适合的配置,还需要根据业务情况而定

因为我们有俩个业务服务 一个服务提供者 一个是服务消费者我们配置俩个服务的分别路由 discovery-server、client-common

  • path 是请求路径匹配规则
  • serviceId 是我们服务的spring.application.name 对应的值。
  • sensitiveHeaders 字段比较敏感,不希望传递给下游微服务。 设置空没有要忽略的敏感字段。全部传给下游服务这个字段可以是全局设置也可以是单个服务配置。
  • ribbon-isolation-strategy 所有路由的默认Hystrix隔离模式(ExecutionIsolationStrategy)为SEMAPHORE。如果此隔离模式是首选,则zuul.ribbonIsolationStrategy可以更改为THREAD
  • ignored-services 忽略所有微服务,只路由指定的微服务。
  • ribbon.eager-load.enabled true 强制加载 false 默认懒加载
    • true日志打印效果 false 将不打印这段日志

      2019-10-29 23:47:11.377  INFO 61396 --- [           main] c.netflix.loadbalancer.BaseLoadBalancer  : Client: cloud-discovery-server instantiated a LoadBalancer: DynamicServerListLoadBalancer:{NFLoadBalancer:name=cloud-discovery-server,current list of Servers=[],Load balancer stats=Zone stats: {},Server stats: []}ServerList:null
      2019-10-29 23:47:11.382  INFO 61396 --- [           main] c.n.l.DynamicServerListLoadBalancer      : Using serverListUpdater PollingServerListUpdater
      2019-10-29 23:47:11.450  INFO 61396 --- [           main] c.netflix.config.ChainedDynamicProperty  : Flipping property: cloud-discovery-server.ribbon.ActiveConnectionsLimit to use NEXT property: niws.loadbalancer.availabilityFilteringRule.activeConnectionsLimit = 2147483647
      2019-10-29 23:47:11.452  INFO 61396 --- [           main] c.n.l.DynamicServerListLoadBalancer      : DynamicServerListLoadBalancer for client cloud-discovery-server initialized: DynamicServerListLoadBalancer:{NFLoadBalancer:name=cloud-discovery-server,current list of Servers=[192.168.3.6:9012],Load balancer stats=Zone stats: {unknown=[Zone:unknown;  Instance count:1;   Active connections count: 0;    Circuit breaker tripped count: 0;   Active connections per server: 0.0;]
      },Server stats: [[Server:192.168.3.6:9012;  Zone:UNKNOWN;   Total Requests:0;   Successive connection failure:0;    Total blackout seconds:0;   Last connection made:Thu Jan 01 08:00:00 CST 1970;  First connection made: Thu Jan 01 08:00:00 CST 1970;    Active Connections:0;   total failure count in last (1000) msecs:0; average resp time:0.0;  90 percentile resp time:0.0;    95 percentile resp time:0.0;    min resp time:0.0;  max resp time:0.0;  stddev resp time:0.0]
      ]}ServerList:com.alibaba.cloud.nacos.ribbon.NacosServerList@33e4b9c4
      2019-10-29 23:47:11.576  INFO 61396 --- [           main] c.netflix.config.ChainedDynamicProperty  : Flipping property: cloud-discovery-client.ribbon.ActiveConnectionsLimit to use NEXT property: niws.loadbalancer.availabilityFilteringRule.activeConnectionsLimit = 2147483647
      2019-10-29 23:47:11.577  INFO 61396 --- [           main] c.netflix.loadbalancer.BaseLoadBalancer  : Client: cloud-discovery-client instantiated a LoadBalancer: DynamicServerListLoadBalancer:{NFLoadBalancer:name=cloud-discovery-client,current list of Servers=[],Load balancer stats=Zone stats: {},Server stats: []}ServerList:null
      2019-10-29 23:47:11.578  INFO 61396 --- [           main] c.n.l.DynamicServerListLoadBalancer      : Using serverListUpdater PollingServerListUpdater
      2019-10-29 23:47:11.639  INFO 61396 --- [           main] c.netflix.config.ChainedDynamicProperty  : Flipping property: cloud-discovery-client.ribbon.ActiveConnectionsLimit to use NEXT property: niws.loadbalancer.availabilityFilteringRule.activeConnectionsLimit = 2147483647
      2019-10-29 23:47:11.640  INFO 61396 --- [           main] c.n.l.DynamicServerListLoadBalancer      : DynamicServerListLoadBalancer for client cloud-discovery-client initialized: DynamicServerListLoadBalancer:{NFLoadBalancer:name=cloud-discovery-client,current list of Servers=[192.168.3.6:9011],Load balancer stats=Zone stats: {unknown=[Zone:unknown;  Instance count:1;   Active connections count: 0;    Circuit breaker tripped count: 0;   Active connections per server: 0.0;]
      },Server stats: [[Server:192.168.3.6:9011;  Zone:UNKNOWN;   Total Requests:0;   Successive connection failure:0;    Total blackout seconds:0;   Last connection made:Thu Jan 01 08:00:00 CST 1970;  First connection made: Thu Jan 01 08:00:00 CST 1970;    Active Connections:0;   total failure count in last (1000) msecs:0; average resp time:0.0;  90 percentile resp time:0.0;    95 percentile resp time:0.0;    min resp time:0.0;  max resp time:0.0;  stddev resp time:0.0]
      ]}ServerList:com.alibaba.cloud.nacos.ribbon.NacosServerList@256589a1

将三个服务全部启动。服务提供者和服务消费者还有zuul 服务

在控制台 输入命令 curl http://localhost:9083/client/client/test

Spring Cloud zuul网关服务 一

我们看到打印效果,请求通过网关服务成功转发到了我们的下游服务上。并返回

  • ribbon-isolation-strategy
  • ignored-services
  • sensitiveHeaders

以上几个参数、还有zuul服务的路由拦截器的使用,将在下一篇讲解。

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Spring Cloud zuul网关服务 一

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原文  http://www.cnblogs.com/cloudxlr/p/11762495.html
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