09_SpringCloud_Zuul路由网关
Zuul概述
可以从图上看到,Zuul主要就是API Gateway那块,言下之意就是所有的访问必须要经过API Gateway才能访问到微服务;
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Zuul包含了对请求的路由和过滤两个最主要的功能:
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其中路由功能负责对外部请求转发到具体的微服务实例上,是实现外部访问统一入口的基础;
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而过滤器功能则负责对请求的处理过程进行干预,是实现请求校验、服务聚合等功能的基础;
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Zuul和Eureka进行整合,将Zuul自身注册为Eureka服务治理下的应用,同时从Eureka中获得其他微服务的信息,也即以后的访问微服务都是通过Zuul跳转后获得的;
注意:Zuul服务最终还是会注册进Eureka;
Zuul提供=代理+路由+过滤三大功能;
Zuul路由基本配置
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新建microservicecloud-zuul-gateway-9527项目
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pom.xml
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修改部分:
<!-- Zuul路由网关相关依赖 --> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-eureka</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-zuul</artifactId> </dependency>
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完整内容:
<?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>microservicecloud</artifactId> <groupId>top.tomxwd</groupId> <version>1.0-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>microservicecloud-zuul-gateway-9527</artifactId> <dependencies> <dependency> <groupId>top.tomxwd</groupId> <artifactId>microservicecloud-api</artifactId> <version>${project.version}</version> </dependency> <!-- Zuul路由网关相关依赖 --> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-eureka</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-zuul</artifactId> </dependency> <!-- actuator监控以及信息配置 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <!-- Hystrix断路器相关依赖 --> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-hystrix</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-config</artifactId> </dependency> <!-- 内嵌jetty容器 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-jetty</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> </dependency> <!-- 热部署 --> <dependency> <groupId>org.springframework</groupId> <artifactId>springloaded</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> </dependency> </dependencies> </project>
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application.yaml
server: port: 9527 spring: application: name: microservicecloud-zuul-getway eureka: client: service-url: defaultZone: http://eureka7001.com:7001/eureka/,http://eureka7002.com:7002/eureka/,http://eureka7003.com:7003/eureka/ instance: instance-id: getaway-9527.com prefer-ip-address: true info: app.name: tomxwd-microservicecloud company.name: www.tomxwd.top build.artifactId: $project.artifactId$ bulid.version: $project.version$
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hosts修改
- 127.0.0.1 myzuul.com
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主启动类Zuul_9527_StartSpringCloudApp,主要是加上@EnableZuulProxy注解
@SpringBootApplication @EnableZuulProxy public class Zuul_9527_StartSpringCloudApp { public static void main(String[] args) { SpringApplication.run(Zuul_9527_StartSpringCloudApp.class, args); } }
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启动
- Eureka集群启动
- microservicecloud-provider-dept-8001
- 一个路由Zuul
- 可以到Eureka网址查看注册信息
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测试
Zuul路由访问映射规则
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修改工程microservicecloud-zuul-gateway-9527
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代理名称
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application.yaml
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修改部分:
zuul: routes: mydept.serviceId: microservicecloud-dept mydept.path: /mydept/**
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完整内容:
server: port: 9527 spring: application: name: microservicecloud-zuul-getway eureka: client: service-url: defaultZone: http://eureka7001.com:7001/eureka/,http://eureka7002.com:7002/eureka/,http://eureka7003.com:7003/eureka/ instance: instance-id: getaway-9527.com prefer-ip-address: true info: app.name: tomxwd-microservicecloud company.name: www.tomxwd.top build.artifactId: $project.artifactId$ bulid.version: $project.version$ zuul: routes: mydept.serviceId: microservicecloud-dept mydept.path: /mydept/**
修改之前我们访问的是http://myzuul.com:9527/microservicecloud-dept/dept/get/2,修改之后我们访问http://myzuul.com:9527/mydept/dept/get/2即可;
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此时存在的问题
- 用原来真实的路径也可以访问得到服务
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原真实服务名忽略
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application.yaml
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修改部分:
zuul: ignored-services: microservicecloud-dept
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如果是单个,可以直接写应用名来进行ignored-services,多个可以用"*"
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修改部分:
zuul: ignored-services: "*"
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设置统一公共前缀
所有的服务前面都要加上/tomxwd;
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application.yaml
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修改部分:
zuul: prefix: /tomxwd
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这时候要访问 http://myzuul.com:9527/tomxwd/mydept/dept/get/2 才可以;
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最后application.yaml文件修改
server: port: 9527 spring: application: name: microservicecloud-zuul-getway eureka: client: service-url: defaultZone: http://eureka7001.com:7001/eureka/,http://eureka7002.com:7002/eureka/,http://eureka7003.com:7003/eureka/ instance: instance-id: getaway-9527.com prefer-ip-address: true info: app.name: tomxwd-microservicecloud company.name: www.tomxwd.top build.artifactId: $project.artifactId$ bulid.version: $project.version$ zuul: routes: mydept.serviceId: microservicecloud-dept mydept.path: /mydept/** ignored-services: "*" prefix: /tomxwd # ignored-services: microservicecloud-dept
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