5.数据准备

代码如下：

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

import org.springframework.stereotype.Controller;

import org.springframework.ui.Model;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RestController;

import java.util.ArrayList;

import java.util.List;

@Controller

@SpringBootAvfLAwXyMTpplication

public class ThymeleafTestApplication {

@RequestMapping("/")

public String index(Model model){

Person single=new Person("aa",1);

List people=new ArrayList();

Person p1=new Person("bb",2);

Person p2=new Person("cc",3);

Person p3=new Person("dd",4);

people.add(p1);

people.add(p2);

people.add(p3);