前言

本文引导读者通过spring boot创建一个restful服务器，笔者使用开发环境如下：

操作步骤

• 创建spring boot项目，参考idea 新建spring boot项目；
• 创建领域类Greeting,(需要创建对应的包，这里就不再具体说明)

package com.nick.demo.domain;
public class Greeting {
    private final long id;
    private final String content;

    public Greeting(long id, String content) {
        this.id = id;
        this.content = content;
    }

    public long getId() {
        return id;
    }

    public String getContent() {
        return content;
    }
}

• 创建控制类

package com.nick.demo.controller;/*
 * @Author      : Nick
 * @Description :
 * @Date        : Create in 21:45 2018/4/25
 **/

import com.nick.demo.domain.Greeting;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.concurrent.atomic.AtomicLong;

@RestController
public class GreetingController {
    private static final String template = "Hello, %s!";
    private final AtomicLong counter = new AtomicLong();

    @RequestMapping("/greeting")
    public Greeting greeting(@RequestParam(value="name", defaultValue="World") String name) {

        return new Greeting(counter.incrementAndGet(),
                String.format(template, name));
    }
}

• 执行查看效果
  
  image.png

image.png

总结

• 控制类上面使用@RestController注解；
• 方法映射地址使用@RequestMapping注解