类似于 JSP-Servlet 中的 req.setAttribute 、 req.getSession().setAttribute ... 

--> 最后在 JSP 用 EL 表达式取得这些数据对象，

STEP-1 传递模型数据的三种方式



package spittr.web;

import static org.springframework.web.bind.annotation.RequestMethod.GET;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import spittr.Spittle;
import spittr.data.SpittleRepository;

@Controller
public class SpittleController {
    
    private SpittleRepository spittleRepository;
    
    @Autowired
    public SpittleController(SpittleRepository spittleRepository) {
        this.spittleRepository = spittleRepository;
    }
    
    @RequestMapping(value="/spittles", method=GET)    
    public List<Spittle> spittles() {
        return spittleRepository.findSpittles(Long.MAX_VALUE, 20);
    } // 采用用无 String 的方式传递模型数据到视图 
      // --> 属性名推断为 spittleList
      // --> 视图名称推断为 spittles --> 去掉了 /
    
//    public String spittles(Model model) {
//        model.addAttribute(spittleRepository.findSpittles(Long.MAX_VALUE, 20));
//        return "spittles";
//    } 这是等价方法-1：半自定义 --> 自定义视图名
    
//    public String spittles(Model model) {
//        model.addAttribute("myList", spittleRepository.findSpittles(Long.MAX_VALUE, 20));
//        return "spittles";
//    } 这是等价方法-2：高度自定义。 --> 自定义视图名以及属性名
}


STEP-2 在 JSP 页面中获取数据



<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="s" uri="http://www.springframework.org/tags"%>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>

<html>
  <head>
    <title>Spitter</title>
    <link rel="stylesheet" type="text/css" href="<c:url value="/resources/style.css" />" >
  </head>
  <body>
    <div class="spittleForm">
      <h1>Spit it out...</h1>
      <form method="POST" name="spittleForm">
        <input type="hidden" name="latitude">
        <input type="hidden" name="longitude">
        <textarea name="message" cols="80" rows="5"></textarea><br/>
        <input type="submit" value="Add" />
      </form>
    </div>
    <div class="listTitle">
      <h1>Recent Spittles</h1>
      <ul class="spittleList">
        <c:forEach items="${spittleList}" var="spittle" >
          <li id="spittle_<c:out value="spittle.id"/>">
            <div class="spittleMessage"><c:out value="${spittle.message}" /></div>
            <div>
              <span class="spittleTime"><c:out value="${spittle.time}" /></span>
              <span class="spittleLocation">(<c:out value="${spittle.latitude}" />, <c:out value="${spittle.longitude}" />)</span>
            </div>
          </li>
        </c:forEach>
      </ul>
<%--       <c:if test="${fn:length(spittleList) gt 20}">
        <hr />
        <s:url value="/spittles?count=${nextCount}" var="more_url" />
        <a href="${more_url}">Show more</a>
      </c:if> --%>
    </div>
  </body>
</html>