源代码地址

http://git.oschina.net/youlixishi/demo-world

建立空maven项目，导入maven依赖


    org.springframework.boot
    spring-boot-starter-parent
    1.4.3.RELEASE


    
        org.springframework.boot
        spring-boot-starter-web
    
    
        org.springframework.boot
        spring-boot-starter-thymeleaf
    
    
    
        org.springframework
        springloaded
        1.2.5.RELEASE
    


    
        
            org.springframework.boot
            spring-boot-maven-plugin

建立 application.properties 文件

server.port=1000

项目结构

创建入口类，从这里启动

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.support.SpringBootServletInitializer;

/**
 * Created by francis on 2017/6/14.
 */
@SpringBootApplication
public class Startup extends SpringBootServletInitializer {
    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(Startup.class);
    }

    public static void main(String[] args) throws Exception {
        SpringApplication.run(Startup.class, args);
    }
}

创建api controller

import com.demoworld.common.IndexResult;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.servlet.ModelAndView;

/**
 * Created by francis on 2017/6/18.
 */

@Controller
@ResponseBody
public class HomeController {
    //没有参数直接返回json
    @RequestMapping("/")
    public IndexResult hi1() {
        IndexResult tmpResult = new IndexResult();
        tmpResult.setId(System.currentTimeMillis());
        tmpResult.setName("francis");
        tmpResult.setPassword("oiweohjfwe0921348021");
        return tmpResult;
    }

    //接收参数， 返回json
    @RequestMapping("/2")
    public IndexResult hi2(@RequestParam(value = "id", required = false, defaultValue = "0") long id) {
        IndexResult tmpResult = new IndexResult();
        tmpResult.setId(id > 0 ? id : System.currentTimeMillis());
        tmpResult.setName("francis");
        tmpResult.setPassword("oiweohjfwe0921348021");
        return tmpResult;
    }

    //接收数组， 返回json
    @RequestMapping("/3")
    public IndexResult hi3(@RequestParam(value = "ids", required = true, defaultValue = "") long[] ids) {
        IndexResult tmpResult = new IndexResult();
        tmpResult.setId(ids != null && ids.length > 0 ? ids[0] : System.currentTimeMillis());
        tmpResult.setName("francis");
        tmpResult.setPassword("oiweohjfwe0921348021");
        return tmpResult;
    }

    //接收参数对象， 返回json
    @RequestMapping("/4")
    public IndexResult hi4(@ModelAttribute("input") IndexResult input) {
        if (input != null && input.getId()>0) {
            return input;
        }
        IndexResult tmpResult = new IndexResult();
        tmpResult.setId(System.currentTimeMillis());
        tmpResult.setName("francis");
        tmpResult.setPassword("oiweohjfwe0921348021");


        return tmpResult;
    }
}