Spring

涉及到的问题：

1. Spring boot工程基础 使用bootcase工程完成练习。

2. yaml文件类型的配置使用，可参考spring yaml 默认位置为/myApplication/src/main/resources/application.yml 支持多环境配置

Basic info

工作原理
中文官方文档：入门
中文官方文档mybatis-spring：入门

link to JianShu这篇估计因为提到了VPN，至今依然是“仅自己可见”

使用VPN链接公司内网的环境。本地调试链接Redis时是不是会提示：完整log

link on JianShu

Introduction to the Build Lifecycle

• validate - validate the project is correct and all necessary information is available
• compile - compile the source code of the project
• test - test the compiled source code using a suitable unit testing framework. These tests should not require the code be packaged or deployed
• package - take the compiled code and package it in its distributable format, such as a JAR.
• verify - run any checks on results of integration tests to ensure quality criteria are met
• install - install the package into the local repository, for use as a dependency in other projects locally
• deploy - done in the build environment, copies the final package to the remote repository for sharing with other developers and projects.

• mvn clean package依次执行了clean、resources、compile、testResources、testCompile、test、jar(打包)等７个阶段。
• mvn clean install依次执行了clean、resources、compile、testResources、testCompile、test、jar(打包)、install等8个阶段。
• mvn clean deploy依次执行了clean、resources、compile、testResources、testCompile、test、jar(打包)、install、deploy等９个阶段。

• package命令完成了项目编译、单元测试、打包功能，但没有把打好的可执行jar包（war包或其它形式的包）布署到本地maven仓库和远程maven私服仓库
• install命令完成了项目编译、单元测试、打包功能，同时把打好的可执行jar包（war包或其它形式的包）布署到本地maven仓库，但没有布署到远程maven私服仓库
• deploy命令完成了项目编译、单元测试、打包功能，同时把打好的可执行jar包（war包或其它形式的包）布署到本地maven仓库和远程maven私服仓库

link on JianShu

What is “pom” packaging in maven?

pom packaging is simply a specification that states the primary artifact is not a war or jar, but the pom.xml itself.

只是一直打包形式，打包为pom文件本身。加入当前目录是做完文档模块存在，显然无法打包为jar形式。

link to JianShu

阿里云

1. 目前阿里云新用户有优惠，89年一年。购买的是劵，然后用劵再正式开通服务，设置好用户名密码，默认22端口开通。可以远程访问。
2. 阿里云实例列表–更多–网络和安全组–安全组配置–配置规则–增加入网的端口。这样才可以访问对应的端口
3. 增加日常用户
4. 安装mysql服务
5. 安装maven sudo apt install maven，配置阿里云镜像。创建 .m2/settings.xml文件，内容如下——

<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0
                              https://maven.apache.org/xsd/settings-1.0.0.xsd">
    <localRepository />
    <interactiveMode />
    <usePluginRegistry />
    <offline />
    <pluginGroups />
    <servers />
    <mirrors>
        <mirror>
        <id>nexus-aliyun</id>
        <mirrorOf>*</mirrorOf>
        <name>Nexus aliyun</name>
        <url>http://maven.aliyun.com/nexus/content/groups/public</url>
    </mirror>
    </mirrors> 
    <proxies />
    <profiles />
    <activeProfiles />
</settings>


  
  
  

link on JianShu

从头再来。旧的镜像在我安装gitlab之后Gitlab CE，现在远程登录相当慢。重新初始化了一下镜像。使用强密码策略。

• 0. 安装zsh+oh my zsh apt-get install -y zsh; sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"
• 1. 安装Maven, git, java apt-get update; apt-get install -y maven git openjdk-8-jdk
• 2. 生成SSH public key ssh-keygen -t rsa -b 4096 -C "e@example.com" 并配置多个key ~/.ssh/config 内容如下
• 3. 安装mysql，how-to-install-mysql-on-ubuntu-18-04
• 4. 配置安全组策略，打开需要访问的端口。

Host github.com
    # Specifies the real host name to log into. Numeric IP addresses are also permitted.
    HostName github.com
    # Defines the username for the SSH connection.
    User gebitang
    # Specifies a file from which the user’s DSA, ECDSA or DSA authentication identity is read.
    IdentityFile ~/.ssh/id_rsa_github
Host gitlab.com
    # Specifies the real host name to log into. Numeric IP addresses are also permitted.
    HostName gitlab.com
    # Defines the username for the SSH connection.
    User gebitang
    # Specifies a file from which the user’s DSA, ECDSA or DSA authentication identity is read.
    IdentityFile ~/.ssh/id_rsa