首先使用IDEA创建一个springboot的项目,如下
点击下一步,勾选web,下一步,直到项目完成创建。
pom.xml如下
<?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.szt</groupId>
<artifactId>springboot-helloworld</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>springboot-helloworld</name>
<description>Demo project for Spring Boot</description>
<!-- Spring Boot 启动父依赖 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.10.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>
<!-- Spring Boot web依赖 -->
<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>
编写controller
@Controller
public class HelloworldController {
@ResponseBody
@RequestMapping("/hello")
public String sayHello(){
return "hello,World!";
}
}
1. @RestController:提供实现了REST API,可以服务JSON,XML或者其他。这里是以String的形式渲染出结果。2. @RequestMapping:提供路由信息,"/“路径的HTTP Request都会被映射到sayHello方法进行处理。
启动类:
@SpringBootApplication
public class SpringbootHelloworldApplication {
public static void main(String[] args) {
SpringApplication.run(SpringbootHelloworldApplication.class, args);
}
}
通过main函数启动,完成!