spring boot 它的設計目的就是爲例簡化開發,開啓了各類自動裝配,你不想寫各類配置文件,引入相關的依賴就能迅速搭建起一個web工程。它採用的是創建生產就緒的應用程序觀點,優先於配置的慣例。html
可能你有不少理由不放棄SSM,SSH,可是當你一旦使用了springboot ,你會以爲一切變得簡單了,配置變的簡單了、編碼變的簡單了,部署變的簡單了,感受本身大步流星,開發速度大大提升了。就比如,當你用了IDEA,你會以爲再也回不到Eclipse時代同樣。另,本系列教程所有用的IDEA做爲開發工具。java
你須要:web
打開Idea-> new Project ->Spring Initializr ->填寫group、artifact ->鉤上web(開啓web功能)->點下一步就好了。spring
建立完工程,工程的目錄結構以下:apache
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- src
-main
-java
-
package
-SpringbootApplication
-resouces
- statics
- templates
- application.yml
-test
- pom
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pom.xml的依賴:瀏覽器
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<?xml version=
"1.0"
encoding=
"UTF-8"
?>
<project xmlns=
"http://maven.apache.org/POM/4.0.0"
xmlns:xsi=
"http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation=
"http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
>
<modelVersion>
4.0
.
0
</modelVersion>
<groupId>com.forezp</groupId>
<artifactId>springboot-first-application</artifactId>
<version>
0.0
.
1
-SNAPSHOT</version>
<packaging>jar</packaging>
<name>springboot-first-application</name>
<description>Demo project
for
Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>
1.5
.
2
.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-
8
</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-
8
</project.reporting.outputEncoding>
<java.version>
1.8
</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
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其中spring-boot-starter-web不只包含spring-boot-starter,還自動開啓了web功能。springboot
說了這麼多,你可能還體會不到,舉個栗子,好比你引入了Thymeleaf的依賴,spring boot 就會自動幫你引入SpringTemplateEngine,當你引入了本身的SpringTemplateEngine,spring boot就不會幫你引入。它讓你專一於你的本身的業務開發,而不是各類配置。架構
再舉個栗子,建個controller:app
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import
org.springframework.web.bind.annotation.RestController;
import
org.springframework.web.bind.annotation.RequestMapping;
@RestController
public
class
HelloController {
@RequestMapping
(
"/"
)
public
String index() {
return
"Greetings from Spring Boot!"
;
}
}
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啓動SpringbootFirstApplication的main方法,打開瀏覽器localhost:8080,瀏覽器顯示:maven
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Greetings from Spring Boot!
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