微服务的脚手架Jhipster使用(一)

随着微服务的普及以及docker容器的广泛应用,有传统的soa服务衍生出微服务的概念,微服务强调的是服务的独立性,屏蔽底层物理平台的差异,此时你会发现微服务跟容器技术完美契合。在此基础上衍生出的云原生以及DevOps的概念,废话不多说介绍一个非常牛叉的springCloud脚手架- -jhipster。

  

  •     安装 
  1. 安装Java 8 from the Oracle website.
  2. 安装Node.js from the Node.js website (请安装 64-bit version)
  3. 安装npm包: npm install -g npm
  4. 如果你想使用jhipster应用市场, 请安装 Yeoman: npm install -g yo
  5. 最后安装JHipster: npm install -g generator-jhipster
  •          生成项目
  1. 选择一个空的文件夹打开cmd:jhipster 
  2. 根据一步步step提示选择构建自己的服务项目
    windows下:
    以下demo选择微服务应用。实际中根据自己需求生产项目。 1: Which *type* of application would you like to create? (Use arrow keys) Monolithic application (recommended for simple projects) //简单项目 Microservice application // 微服务应用 Microservice gateway // 微服务网关 JHipster UAA server (for microservice OAuth2 authentication) // 微服务认证 2 :What is the base name of your application? (huhuawei) 输入服务名称 3: As you are running in a microservice architecture, on which port would like your server to run? It should be unique to avoid port conflicts. (8081) 设置服务的端口号 4:What is your default Java package name? (com.mycompany.myapp) 设置包名 5:Which service discovery server do you want to use? (Use arrow keys) JHipster Registry (uses Eureka) Consul No service discovery 选择注册中心。一般选择Registry比较多 6:Which *type* of authentication would you like to use? (Use arrow keys) JWT authentication (stateless, with a token) // jwt OAuth 2.0 / OIDC Authentication (stateful, works with Keycloak and Okta)//Oauth2 OIDC 认证服务 Authentication with JHipster UAA server (the server must be generated separately) // Oauth2+jwt Uaa认证服务 选择授权中心 7: Which *type* of database would you like to use? SQL (H2, MySQL, MariaDB, PostgreSQL, Oracle, MSSQL) MongoDB Couchbase No database Cassandra 选择数据库支持Nosql跟常见RDMB数据库 8:? Which *production* database would you like to use? (Use arrow keys) MySQL MariaDB PostgreSQL Oracle Microsoft SQL Server 选择数据库,这边会出现两次第一次是production 第二次是devlopment 9:Do you want to use the Spring cache abstraction? 根据需求选择缓存 10:Do you want to use Hibernate 2nd level cache? (Y/n) 是否支持二级缓存 11: Would you like to use Maven or Gradle for building the backend? (Use arrow keys) Maven Gradle 12:Which other technologies would you like to use? 安装一些其他的组件。如ES,KAFKA之类的 13:Would you like to enable internationalization support? (Y/n) 支持国际化? 14: Please choose the native language of the application (Use arrow keys) English Estonian Farsi French Galician ........ 选择本地支持的语言包含中文 15:Please choose additional languages to install 可以额外安装其他语言 16:Besides JUnit and Jest, which testing frameworks would you like to use? Gatling Cucumber 选择测试框架,针对微服务http接口测试,生成测试报告 17:Would you like to install other generators from the JHipster Marketplace? 从jhipster市场中选择组件安装  
  3. 如果你觉得安装这些环境太麻烦,你又熟悉docker的基本命令,那建议使用docker去生成项目;
    选择linux服务器,安装docker;
    yum install -y yum-utils device-mapper-persistent-data lvm2
    yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
    yum list docker-ce --showduplicates | sort -r
    sudo yum install -y docker-ce
    sudo systemctl start docker
    sudo systemctl enable docker
    

    拉取jhipster官方镜像
    docker pull jhipster/jhipster:master

    启动jhipster镜像,选择一个空文件/jhipster夹挂载到容器中
    docker container run
    --name jhipster
    -v /jhipster:/home/jhipster/app
    -v ~/.m2:/home/jhipster/.m2
    -p 8080:8080
    -p 9000:9000
    -p 3001:3001
    -d -t jhipster/jhipster

    进入容器中
    docker container exec -it --user root jhipster bash
    然后就可以生成项目了。与windows上操作无差别

     

  •          项目的组成简单介绍

  Gateway: springcloud Zuul Proxy  进行动态路由微服务

  Registry:主要封装了Eureka以及配置中心Config Server。

       Jhipster Console:封装了Elk监控 以及 sleuth zipkin 等分布式链路监控组件。

       Jhipster Uaa:  采用UAA用户登录认证 OAUTH2集中式认证,默认不使用的话则是JWT无状态认证

      

  •          总结

          上述仅仅是大体的架构,Jhipster内部使用了很多插件来进行敏捷开发,包括实体类JDL快速生成从数据库到Controller代码,开发效率非常之高。适合中小型企业采用,而且Jhipster支持DockerFile与Compose                    文件生成,可以帮助我们快速容器化服务部署。

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posted on 2018-11-21 14:37  coding途中  阅读(21280)  评论(0编辑  收藏  举报

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