springcloud-zuul网关实践

我会带着你远行 2022-10-23 12:43 97阅读 0赞

### springcloud-zuul网关实践 ###

*   *  1、zuul简介
     *  2、springcloud中使用zuul
     *   *  1. 导入依赖
         *  2. 编写配置
         *  3. 编写启动类
         *  4. 测试

## 1、zuul简介 ##

Zuul是从设备和网站到Netflix流媒体应用程序后端的所有请求的前门。作为边缘服务应用程序，Zuul旨在实现动态路由，监视，弹性和安全性。它还可以根据需要将请求路由到多个Amazon Auto Scaling组。  
详情点击 [GitHub关于zuul的介绍][GitHub_zuul]

## 2、springcloud中使用zuul ##

### 1. 导入依赖 ###

我们需要导入zuul和eureka的依赖，下面是一个相对完整的依赖，包含了zuul和eureka的依赖，读者可以根据自己的需要添加自己的依赖

<?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <parent>
            <artifactId>springcloud</artifactId>
            <groupId>org.example</groupId>
            <version>1.0-SNAPSHOT</version>
        </parent>
        <modelVersion>4.0.0</modelVersion>
    
        <artifactId>springcloud-zuul-9527</artifactId>
        <dependencies>
    
            
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-zuul</artifactId>
                <version>1.4.6.RELEASE</version>
            </dependency>
    
            
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-ribbon</artifactId>
                <version>1.4.6.RELEASE</version>
            </dependency>
    
            
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-hystrix</artifactId>
                <version>1.4.6.RELEASE</version>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-hystrix-dashboard</artifactId>
                <version>1.4.6.RELEASE</version>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-eureka</artifactId>
                <version>1.4.6.RELEASE</version>
            </dependency>
    
            
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
            </dependency>
    
        </dependencies>
    
    </project>

### 2. 编写配置 ###

下面是一个比较完整的配置，关于一些zuul相关的配置都有注解，读者可自行查看

server:
      port: 9527
    
    spring:
      datasource:
        driver-class-name: com.mysql.cj.jdbc.Driver
        url: jdbc:mysql://localhost:3306/mybatis_plus?serverTimezone=GMT%2B8
        username: root
        password: 520China
      application:
        name: springcloud-zuul
    
    
    eureka:
      client:
        service-url:
          defaultZone: http://ybg.eureka1.com:7001/eureka/,http://ybg.eureka2.com:7002/eureka/   # 发布在哪个网址的注册中心
    
      instance:
        instance-id: zuul9527.com
        prefer-ip-address: true
    
    
    info:
      app.name: ybg-springcloud
      company.name: blog.ybg.com
    
    zuul:
      routes:
        mydept.serviceId: springcloud-provider-user          # 服务提供者注册的服务名
        mydept.path: /mydept/**                              # 映射的服务地址
      ignored-services: springcloud-provider-user  # 不能再使用这个路径访问了 "*" 表示隐藏全部路径
      prefix: /test    # 访问的前缀，加上去之后每次都要加上这个前缀

### 3. 编写启动类 ###

在启动类添加@EnableZuulProxy注解，表示开启Zuul服务

package com.hzxy.springcloud;
    
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.cloud.netflix.zuul.EnableZuulProxy;
    
    @SpringBootApplication
    @EnableZuulProxy       //开启Zuul服务
    public class ZuulApplication_9527 { 
        public static void main(String[] args) { 
            SpringApplication.run(ZuulApplication_9527.class,args);
        }
    }

### 4. 测试 ###

输入：http://www.ybg.com:9527/test/mydept/hello，访问成功，测试通过！  
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[GitHub_zuul]: https://github.com/Netflix/zuul/wiki
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