SpringBoot

package io.jbnrz.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);
    }
}

package io.jbnrz.demo.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class Controller {
    @RequestMapping("/")
    public String root(){
        return "This is the root page";
    }
    @RequestMapping("/hello")
    public String hello(){
        return "This is the hello page";
    }
}

package io.jbnrz.demo.Controller;

import io.jbnrz.demo.env.Info;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.env.Environment;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class Controller {

    @Value("${name}")
    private String name;

    @Value("${website}")
    private String website;

    @Value("${test}")
    private String test;

    @Value("${web[0]}")
    private String web1;

    @Value("${web[1]}")
    private String web2;

    @Autowired
    private Environment env;

    @Autowired
    private Info info;

    @RequestMapping("/")
    public String root(){
        return "This is the root page";
    }

    @RequestMapping("/hello")
    public String hello(){
        return "This is the hello page";
    }

    @RequestMapping("/info")
    public String info(){
        return this.name + "<br>" + this.website + "<br>" + this.test;
    }

    @RequestMapping("/web")
    public String web(){
        return this.web1 + "<br>" + this.web2;
    }

    @RequestMapping("/env")
    public String env(){
        return env.getProperty("name") + "<br>" + env.getProperty("website");
    }

    @RequestMapping("/info2")
    public String info2(){
        return info.getName() + "<br>" + info.getWebsite();
    }
}

package io.jbnrz.demo.env;

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

@Component
@ConfigurationProperties(prefix = "jbnrz")
/*

@ConfigurationProperties
-> private String name = JBNRZ;
-> private String website = https://jbnrz.github.io/;


@ConfigurationProperties(prefix = "jbnrz")
-> private String name = CRZJBN;
-> private String website = https://jbnrz.netlify.app/;

*/
public class Info {

    private String name;
    private String website;

    // Alt + Insert 快捷生成
    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getWebsite() {
        return website;
    }

    public void setWebsite(String website) {
        this.website = website;
    }

    @Override
    public String toString() {
        return "Info{" +
                "name='" + name + '\'' +
                ", website='" + website + '\'' +
                '}';
    }
}