SpringCloud git资源仓库用法和Zuul路由

网址：https://github.com/

配置中心

原理：

github上的配置，名为School-dev.yml

spring:
  application:
    name: userClient
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://192.168.0.250/school
    username: root
    password: ps123456
server: 
  port: 80
eureka:
  instance:
    hostname: localhost
    #注册到注册中心的微服务都是IP地址
    preferIpAddress: true
  client:
    #是否注册到注册中心
    registerWithEureka: true
    #是否抓取注册中心的注册信息
    fetchRegistry: true
    serviceUrl:
      #微服务和客户端用来注册和发现的地址,此处为linux虚拟机运行地址
      defaultZone: http://192.168.174.129:8761/eureka/

application.yml 配置中心服务引用github仓库(自己创建的)

spring:
  cloud:
    config:
      server:
        git:
          uri: https://github.com/qq1073674233/ConfigCenter  #github路径
server:
  port: 8888 #不指定端口，默认为8080

###配置中心依赖

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

读取资源的两种类型均可:yml,properties

URL:http://localhost:8888/School-dev.yml
URL:http://localhost:8888/School-dev.properties

application.name错误

spring:
application:
name: Schoo
github上名字为：School-dev.yml
应为 School

    2018-12-04 00:11:23.183  WARN 7804 --- [  restartedMain] ationConfigEmbeddedWebApplicationContext :
    Exception encountered during context initialization - cancelling refresh attempt: 
    org.springframework.beans.factory.UnsatisfiedDependencyException: 
    Error creating bean with name 'inMemoryDatabaseShutdownExecutor' defined in class path resource 
    [org/springframework/boot/devtools/autoconfigure/DevToolsDataSourceAutoConfiguration.class]:
    Unsatisfied dependency expressed through method 'inMemoryDatabaseShutdownExecutor' parameter 0;
    nested exception is org.springframework.beans.factory.BeanCreationException:
    Error creating bean with name 'dataSource' defined in class path resource 

错误：服务启动时间早于注册中心

Cannot execute request on any known server

2018-12-04 08:11:31.965  WARN 5796 --- [nfoReplicator-0] com.netflix.discovery.DiscoveryClient: 
DiscoveryClient_USERSERVICE/OuYang:userService:8881 - registration failed Cannot execute request on any known server
com.netflix.discovery.shared.transport.TransportException: Cannot execute request on any known server

默认访问方式：http://localhost:8888/School/dev，读取的是properties格式

微服务启动前配置bootstrap.yml

#注册中心的位置在IP和端口
spring:
  application:
    name: School #github已定义的项目名
  profiles:
    active: dev  #github已定义的名字，推荐：开发环境dev,测试环境test,生产环境，gene
  cloud:
    config:
      uri: http://localhost:8888
#该文件等同于http://localhost:8888/School-dev.yml
#此文件需添加spring-cloud-starter-config依赖才会读取

读取bootstrap.yml文件的依赖

<dependency>  <!--此依赖才可读取配置资源bootstrap.yml-->
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-config</artifactId>
</dependency>

main类添加注解 @EnableConfigServer

异常：loc header execption 一定是jar包损坏

zuul

路由配置application.yml , 均衡配置客户端，程序访问的入口

spring:
  application:
    name: zuul
server:
  port: 80
eureka:
  instance:
    hostname: localhost
    #注册到注册中心的微服务都是IP地址
    preferIpAddress: true
  client:
    #是否注册到注册中心
    registerWithEureka: false
    #是否抓取注册中心的注册信息
    fetchRegistry: true
    serviceUrl:
      #微服务和客户端用来注册和发现的地址
      defaultZone: http://192.168.174.129:8761/eureka/

访问地址，服务名为全小写userClient→userclient

http://localhost/userclient/userList.html