1 介绍

Spring Boot 仍然是基于Spring的并且内置Servlet Container ， 早去的的容器为Jetty ，最新的容器为Tomcat

 2 实战

项目结构

maven 内容 

<?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.jackie</groupId>
    <artifactId>springboottest</artifactId>
    <version>1.0-SNAPSHOT</version>

    <!-- Inherit defaults from Spring Boot -->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.4.0.BUILD-SNAPSHOT</version>
    </parent>

    <!-- Add typical dependencies for a web application -->
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>

    <!-- Package as an executable jar -->
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

    <!-- Add Spring repositories -->
    <!-- (you don't need this if you are using a .RELEASE version) -->
    <repositories>
        <repository>
            <id>spring-snapshots</id>
            <url>http://repo.spring.io/snapshot</url>
            <snapshots><enabled>true</enabled></snapshots>
        </repository>
        <repository>
            <id>spring-milestones</id>
            <url>http://repo.spring.io/milestone</url>
        </repository>
    </repositories>
    <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>

Application.java

package com.jackie;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * Created by luhaiming on 2018/1/9 0009.
 */
@SpringBootApplication
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}
Example.java

package com.jackie;

import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * Created by luhaiming on 2018/1/9 0009.
 */
@RestController
@EnableAutoConfiguration
public class Example {

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

    @RequestMapping("/hello/{myName}")
    String index(@PathVariable String myName) {
        return "Hello "+myName+"!!!";
    }
}
然后直接运行maven install 命令生成jar 文件就可以按照上面方法来运行了 
Intellij IDEA spring boot run/debug configuration
 
 

  
  
  
  

 
 
 
 

  
  点击run/debug Edit Configuration
 
 
 
 

  
  

 
 
 
 

  
  

 
 
 
 

  
  

 
 
 
 

  
  
  
  

 
 
 
 

  
  点击+ button 选择Spring Boot
 
 
 
 

  
  

 
 
 
 

  
  
  
  

 
 
 
 

  
  详细配置 
 
 
 
 

  
  只要有 Main class ： 配置Spring boot 的入口
 
 
 
 

  
  VM options：-Xms512m
  
  
-Xmx512m
  
  
-Xmn164m
  
  
-XX:MaxPermSize=250m
  
  
-XX:ReservedCodeCacheSize=64m
  
  
-Dserver.port=8090
  
  
-ea
 
 
 
 

  
  这样就可以DEBUG 了