spring cloud zuul 服务网关

spring cloud zuul

Mave 导入

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-netflix-zuul</artifactId>
</dependency>

开启 zuul

• 增加 @EnableZuulProxy

整合 ribbon

配置路由规则

server.port = 7070
# zuul.routes.${app-name} = /${app-url-prefix}/**
zuul.routes.person-service = /person-service/**
# 取消ribbon eureka的整合
ribbon.eureka.enable = false
# 配置person-service的负载均衡
person-service.ribbon.listOfServers = http://localhost:8083 //服务提供地址

启动项目

eureka server

provider

zuul

访问测试

localhost:7070/person-service/demo/getHost -> 返回 true,表示成功

/person-service 是服务的名称

/demo/getHost 是 localhost:8083 的服务

调用链路:zuul --> person-service

整合 eureka

zuul 项目

Maven 导入

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>

激活服务注册和发现客户端

@EnableDiscoveryClient

配置

spring.application.name = zuul-service
server.port = 7070
# zuul.routes.${app-name} = /${app-url-prefix}/**
zuul.routes.person-service = /person-service/**
# 取消ribbon eureka的整合
ribbon.eureka.enable = false
# 配置person-service的负载均衡
person-service.ribbon.listOfServers = http://localhost:8083 //服务提供地址
# 服务注册和发现客户端地址
eureka.client.service-url.defaultZone = http://localhost:9090/eureka

整合 Hystrix

provider 项目

Maven 导入

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
</dependency>

开启 Hystrix

@EnableHystrix

配置规则

@RestController
public class PersonController {

    public Random random = new Random();
    @PostMapping("/person/save")
    @HystrixCommand(fallbackMethod="fallback",
        commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds",
            value = "100")
        }
    )
    boolean save(@RequestBody Person person) throws InterruptedException {
        System.out.println("remote request ok !");
        int i = random.nextInt(200);
        Thread.sleep(i);
        System.out.println("随机 : "+i);
        return new HashMap<>().put(person.getId(),person)==null;
    }
    public List fallback(){
        return new ArrayList();
    }
}

整合 Feign

服务消费方 : person-client

配置

server.port = 8082
spring.application.name = person-consumer
eureka.client.service-url.defaultZone = http://localhost:9090/eureka
management.endpoints.web.exposure.include=*

服务网关 :zuul

增加路由应用到 client

zuul.routes.person-consumer = /person-consumer/**

访问测试

localhost:7070/person-consumer/demo/getHost -> 返回 true,表示成功

调用链路:zuul --> person-consumer --> person-provider

整合 config server

config server 配置

server.port = 9091
spring.application.name = ws
### 拉取远程git中配置
spring.cloud.config.server.git.uri = file:///${user.dir}/src/main/resources/configs
### 关闭actuator验证
management.endpoints.enabled-by-default=true

zuul 增加配置文件

三个 profile 配置文件

• zuul.properties
• zuul-test.properties
• zuul-prod.properties

zuul.properties

zuul.routes.person-service = /person-service/**

zuul-test.properties

zuul.routes.person-consumer = /person-consumer/**

zuul-prod.properties

zuul.routes.person-service = /person-service/**
zuul.routes.person-consumer = /person-consumer/**

file:///${user.dir}/src/main/resources/configs 目录下初始化 git,并提交

增加 eureka 客户端依赖

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>

注册到 eureka 服务器

# 注到eureka服务器
eureka.client.service-url.defaultZone = http://localhost:9090/eureka

激活 Eureka

@EnableDiscoveryClient

测试配置

http://localhost:9091/zuul/default

zuul 配置

增加 config client 依赖

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-config</artifactId>
</dependency>

创建 bootstrap.properties 配置项

# 远程地址properties 前缀 [ws.properties]
spring.cloud.config.name = zuul
# 远程地址properties -后缀 [ws-dev.properties]
spring.cloud.config.profile = default
# git仓局分支
spring.cloud.config.label = master
# 采用Discovery client连接方式
spring.cloud.config.discovery.enabled = true
# 通过eureka注册中心选择config服务
spring.cloud.config.discovery.serviceId = config-server

测试访问

访问 : localhost:7070/person-service/person/save

调用路径 : zuul --> person-service --> person-provider

访问 : localhost:7070/person-service/person/save

调用路径 : zuul --> person-provider

所以 config 服务器配置生效