springboot-helloworld

Posted 2021-01-07 栗常云

1、eclipse安装springboot插件

2、new->Spring Start ->group:组名称；artifact：组件名称；->选中web->finish

3、复制pom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>com.example</groupId>
<artifactId>demo1</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>demo1</name>
<description>Demo project for Spring Boot</description>

<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.2.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>
<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>

4、创建controller

@RestController
//表示该controller类下所有的方法都公用的一级上下文根
@RequestMapping(value = "/springboot")
public class UserController {

//这里使用@RequestMapping注解表示该方法对应的二级上下文路径
@RequestMapping(value = "/getUserByGet", method = RequestMethod.GET)
String getUserByGet(@RequestParam(value = "userName") String userName){
return "Hello " + userName;
}
}

5、运行*Application的main方法

6、访问http://localhost:8080/springboot/getUserByGet?userName=a