spring-boot不愧是框架之王,我们在使用ssh或者ssm的时候,要配置一大堆的文件,但是使用spring-boot后简直就爽翻了!!!
看一下spring-boot下简短的配置文件:
<?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>cn.czy</groupId>
<artifactId>netClick</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>netClick</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.9.RELEASE</version><!-- 指定各种版本 -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><!-- 设置编码 -->
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId><!-- 自动引入tomcat和spring-mvc等相关包 -->
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
</dependencies>
</project>
看下controller
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
@Controller
public class DemoController {
@RequestMapping("/")
@ResponseBody
String home() {
return "Hello World!";
}
}
spring boot项目的启动入口mian方法:注意 这个方法需要放在cn.czy(也就是名字与group id相同)包下
@SpringBootApplication
public class MainApp {
public static void main(String[] args) throws Exception{
SpringApplication.run(MainApp.class,args);
}
}
说说springBootApplication这个注解 ,这是一个符合注解
SpringBootApplication=Configuration+EnableAutoConfiguration+ComponentScan+......
整合了最重要的3个注解:
Configuration----该类由spring容器管理
EnableAutoConfiguration----用于启动服务的自动配置功能
ComponnentScan----用于扫描类的注解
启动main类,访问web
就是这么快..............