首先创建一个maven项目
maven项目创建完成之后,找到pom.xml配置节点。需要springboot-starter-web ,springboot-starter-test,springboot-starter-parent,springboot-starter-plugin。
pom.xml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>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>cn.happy</groupId>
<artifactId>11SpringBoot</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>11SpringBoot</name>
<description>Demo project for Spring Boot</description> <properties>
<java.version>1.7</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>
这样环境搭建完成。
做第一个例子,首先创建一个controller:
controller代码:
package cn.happy; import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController; @RestController
public class HelloController { @RequestMapping("/hello")
public String ob(){
System.out.println("我们进入了App");
return "success";
}
}
之后在App类中加上一个注解:SpringbootApplication
在App类的mian方法中调用 : SpringApplication.run(App.class,args);
package cn.happy; import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication; /**
* Hello world!
*
*/
@SpringBootApplication
public class App
{
public static void main( String[] args )
{
SpringApplication.run(App.class,args);
}
}
然后启动mian方法:
打开百度输入controller方法的路径:
第一个例子完成。