Springboot 入门之Hello World

　　首先使用maven进行包加载和配置，但是你maven一定要配置好，maven的setting.xml文件一定要配置好，不然jar包加载不了的。

　　

<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.esoft.jdp2p</groupId>
    <artifactId>springboot</artifactId>
    <packaging>war</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>springboot</name>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.4.3.RELEASE</version>
    </parent>

    <distributionManagement>
        <repository>
            <id>jinding-releases</id>
            <name>Jinding Release Repository</name>
            <url>http://server:8080/nexus-2.9.0-04/content/repositories/releases/</url>
        </repository>
        <snapshotRepository>
            <id>jinding-snapshots</id>
            <name>Jinding Snapshot Repository</name>
            <url>http://server:8080/nexus-2.9.0-04/content/repositories/snapshots/</url>
        </snapshotRepository>
    </distributionManagement>

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

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

    <pluginRepositories>
        <pluginRepository>
            <id>spring-snapshots</id>
            <url>http://repo.spring.io/snapshot</url>
        </pluginRepository>
        <pluginRepository>
            <id>spring-milestones</id>
            <url>http://repo.spring.io/milestone</url>
        </pluginRepository>
    </pluginRepositories>
</project>

　　确认项目的配置正确，我用的是jdk1.7

　　下面是hello world 程序！但是类名是按照官网上叫的。

package com.lee.controller;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
@EnableAutoConfiguration
public class SampleController {

    @RequestMapping("/")
    @ResponseBody
    String home() {
        return "Hello World!";
    }

    public static void main(String[] args) throws Exception {
        SpringApplication.run(SampleController.class, args);
    }
}

运行时，没有把整个项目都加载到servers的tomcat下，只要右击java类，出现Run as 就可以了！

端口默认用的是8080，此时用浏览器访问http://localhost:8080/即可