1.Fle->New->Project,选择Maven,点击Next
2.修改项目名称,点击Finish
3.项目创建完毕,等待Maven下载完成
4.修改pom.xml文件,改成如下内容
<?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>org.example</groupId><artifactId>hello</artifactId><version>1.0-SNAPSHOT</version><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter</artifactId><version>2.3.7.RELEASE</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId><version>2.3.7.RELEASE</version></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><version>2.3.3.RELEASE</version><executions><execution><goals><goal>repackage</goal></goals></execution></executions><configuration><mainClass>com.demo.DemoApplication</mainClass></configuration></plugin><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><configuration><source>8</source><target>8</target></configuration></plugin></plugins></build>
</project>
5.创建一个package,com.demo,然后创建一个java程序DemoApplication,代码如下,等待Maven下载完毕
package com.demo;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;@SpringBootApplication
public class DemoApplication {public static void main(String[] args) {SpringApplication.run(DemoApplication.class, args);}
}
6.tomcat默认端口号是8080,如果需要修改,可以自行配置端口号,首先在resources目录下创建一个新的file,名称填resource.properties,内容填写deploy.mode=application
7.在resources目录下创建一个新的文件夹config,然后创建一个新的文件application.yml,比如默认端口号改成8808,web项目跟路径改成hello
server:port: 8808servlet:context-path: /hellospring:profiles:active: hello
8.创建一个java类HelloController,代码如下
package com.demo;import org.springframework.web.bind.annotation.*;@RestController
@RequestMapping("/hello")
public class HelloController {@GetMapping("/sayHello")public @ResponseBodyString sayHello( @RequestParam(name = "name") String name) {return "hello:"+name;}
}
9.右键点击HelloController,Run,浏览器输入http://localhost:8808/hello/hello/sayHello?name=123即可看到效果