第64节:Java中的Spring Boot 2.0简介笔记

川长思鸟来 2021-09-17 09:18 190阅读 0赞

![标题图][20181218123625560]

> Java中的Spring Boot 2.0简介笔记

## `spring boot`简介 ##

依赖`java8`的运行环境  
多模块项目  
打包和运行

`spring boot`是由`spring framework`构建的,`spring framework`是`javaee`的框架,`spring framework`\->`spring boot`\->`spring cloud`分布式环境.

`spring boot`由`java 8+`以上支持,因为底层`spring framwork 5.0.x`,特性`web flux`,具有函数式编程(`java8 lambda`),响应式编程`reactive streams`,异步编程:`servlet 3.1`或`asyc nio`.

`java`的环境`jdk`:  
`https://java.oracle.com/`

配置`maven`依赖:  
`http://maven.apache.org/`

配置`idea`:  
`http://www.jetbrains.com/idea/`

![效果][20181218123625579]

![效果][20181218123625692]

![效果][20181218123625709]

![效果][20181218123625732]

`https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html`

`maven`选择镜像:

<mirror>
     <id>alimaven</id>
     <name>aliyun maven</name>
     <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
     <mirrorOf>central</mirrorOf>
    </mirror>

![效果][1240]

![效果][20181218123625746]

`https://www.jetbrains.com/idea/download/#section=windows`

配置环境

![效果][20181218123625765]

![效果][20181218123625780]

![效果][20181218123625805]

![效果][20181218123625821]

![效果][20181218123625835]

`maven`配置:

![效果][20181218123625851]

![效果][20181218123625948]

![效果][20181218123625962]

![效果][20181218123625978]

安装`idea`

都可以默认,可以更改路径(默认`next`到下载中就行):

![效果][2018121812362682]

配置信息,自己可以配置`idea.properties`

![效果][2018121812362698]

`default plugins` \-> `featured plugins`

第一个可以只要`maven`其他不要.  
第二个只要`Git`.  
第三个要`JUnit`和`Coverage`  
第四五不要,第六有`Bytecode Viewer` `YAML` `Terrminal`,第七个都不要.  
然后就下一步就行.

![效果][20181218123626181]

![效果][20181218123626200]

![效果][20181218123626221]

![效果][20181218123626302]

![效果][20181218123626400]

![效果][20181218123626418]

![效果][20181218123626440]

## `spring boot`项目 ##

`rest`程序,`spring boot`应用的运行.

web mvc
    web flux

`https://www.getpostman.com`下载

`https://start.spring.io/`

![效果][20181218123626523]

![效果][20181218123626546]

![效果][20181218123626564]

导入`idea`中,选中文件:

![效果][20181218123626584]

一直`next`就行.

## `maven`配置阿里云中央仓库 ##

阿里的快,国内有墙,阿里做了代理.

![效果][20181218123626603]

// ......conf\settings.xml

![效果][20181218123626674]

## 案例: ##

![效果][20181218123626690]

## `spring mvc`项目 ##

`github`源码地址:

`https://github.com/huangguangda/first-demo`

# **[first-demo][]** #

> 构建项目

图形化方式:

`https://start.spring.io/`

![效果][20181218123626704]

## 地址 ##

`https://maven.apache.org/archetype/maven-archetype-plugin/generate-mojo.html`

![效果][20181218123626730]

插件

![效果][20181218123626750]

交互式效果

mvn archetype:generate -DinteractiveMode=true

![效果][20181218123626766]

mvn archetype:generate -DinteractiveMode=false -DgroupId=com.dashucoding -DartifactId=first-app -Dversion=1.0.0-SNAPSHOT

// spring boot web依赖
    <dependency>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

> 多模块化

模型层,持久层,表示层.

> 运行模式

1.  `idea`
2.  `jar/war`
3.  `maven`

mvn spring-boot:run

## 结尾 ##

`Spring Boot` 在 `Spring` 技术栈中，处于中流砥柱的角色.

> 达叔小生：往后余生，唯独有你  
> You and me, we are family !  
> 90后帅气小伙，良好的开发习惯；独立思考的能力；主动并且善于沟通  
> 简书博客： 达叔小生  
> [https://www.jianshu.com/u/c785ece603d1][https_www.jianshu.com_u_c785ece603d1]

## 结语 ##

*  下面我将继续对 其他知识 深入讲解 ，有兴趣可以继续关注
 *  小礼物走一走 or 点赞

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[20181218123626690]: /images/20210724/6e357d007b99468c89b2dd34c8e22c9d.png
[first-demo]: https://github.com/huangguangda/first-demo
[20181218123626704]: /images/20210724/5973574ac4814e35aca15cc4282f4a58.png
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[20181218123626766]: /images/20210724/57325ae59f914a858ae8b8a60bbee257.png
[https_www.jianshu.com_u_c785ece603d1]: https://www.jianshu.com/u/c785ece603d1