springCloud 搭建eureka服务之天坑

这里我是采用gradle来管理jar包的。

1、使用idea创建一个gradle项目。

2、编辑settings.gradle文件

rootProject.name = 'jtm'
//include 'jtm_core'
//include 'jtm_sys'
//include 'jtm_eureka'

def dir = new File(settingsDir.toString())
def projects = new HashSet()
def projectSymbol = File.separator + 'src'

dir.eachDirRecurse { subDir ->
    def subDirName = subDir.canonicalPath
    def isSubProject = true
    if (subDirName.endsWith(projectSymbol)) {
        for (String projectDir in projects) {
            if (subDirName.startsWith(projectDir)) {
                isSubProject = false
                break
            }
        }
        if (isSubProject) {
            projects << subDirName
            def lastIndex = subDirName.lastIndexOf(projectSymbol)
            def gradleModulePath = subDirName.substring(dir.canonicalPath.length(), lastIndex).replace(File.separator, ':')
            println "include " + gradleModulePath
            include gradleModulePath
        }
    }
}

3、编辑build.gradle文件

buildscript {
    ext {
        springBootVersion = '2.0.4.RELEASE'
        springCloudVersion = 'Finchley.SR1'
    }
    repositories {
        maven { url "http://maven.aliyun.com/nexus/content/groups/public/" }
        mavenCentral()
    }
    dependencies {
        classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
    }
}

allprojects {
    apply plugin: 'java'
    apply plugin: 'idea'
    apply plugin: 'org.springframework.boot'
    apply plugin: 'io.spring.dependency-management'

    group 'com.dqcer'
    version '1.0-SNAPSHOT'
    sourceCompatibility = 1.8

    repositories {
        maven { url "http://maven.aliyun.com/nexus/content/groups/public/" }
        mavenCentral()
    }

    dependencies {
        testCompile('org.springframework.boot:spring-boot-starter-test')
    }

    dependencyManagement {
        imports {
            mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}"
        }
    }
}

4、在当前项目中新建子项目jtm_eureka

5、修改子项目中的build.gradle文件

dependencies {
    compile('org.springframework.cloud:spring-cloud-starter-netflix-eureka-server')
}

6、在子项目中添加配置文件后，运行。

报错：

com.netflix.discovery.shared.transport.TransportException: Cannot execute request on any known server

Caused by: java.net.ConnectException: Connection refused: connect

网上查阅资料后，更改子项目中的配置文件yml如下：

server:
  port: 9001
  servlet:
    context-path: /eureka
eureka:
  instance:
    hostname: localhost
  client:
    fetch-registry: false
    register-with-eureka: false
    service-url:
      defaultZone: http://${eureka.instance.hostname}:${server.port}${server.servlet.context-path}

再次运行，还是这个错，网上说将main方法的注解改了、驼峰名称，或者jar缺失等。都试过。并没有什么作用。冷静查看输入日志发现端口号是8080

多次尝试后得出结论，配置文件名必须为application.yml,不然程序找不到，就会默认配置后，不管如何发现并没有什么用。