Question

我从DAO获取的值存储在变量editVal中，页面返回edit.jsp现在如何在edit.jsp页面中获取可变editVal值。

控制器页面：

@RequestMapping(value="edit", method=RequestMethod.GET)//String 
public ModelAndView  callgetSuccess(@ModelAttribute("id")String Id, BindingResult result, ModelMap model) {     
    ModelAndView shop=new ModelAndView();
     shopModel shModel=new shopModel();     
    if(result.hasErrors()){
        System.out.println("error");
        return new ModelAndView("edit","shopModel",editVal);//"edit"
    }else{                  
        shModel = shopService1.editshop(Id);            
        model.addAttribute("shopModel",shModel);
        shop.addObject("shopModel", shModel);
        return new ModelAndView("edit","shopModel",shModel);
    }

edit.jsp文件

<%@ taglib uri="http://www.springframework.org/tags" prefix="spring"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<html>
<body>
<h2>Hello World!</h2>
<form>
<h1>Success</h1>
edit page

<c:out value="${id}" />
</form>
</body>
</html>

Edit.jsp Page Imge edit jsp page image

Answer 1

由于editVal是一个字符串，您可以访问它<c:out value="${shopModel}" /> 如果是一个字符串列表，则可以使用以下内容

<c:forEach var="shop" items="${shopModel}">
        <c:out value="${shop}" />
</c:forEach>

如果是对象列表，则var.<object attribute name>如下

    <c:forEach items="${shopModel}" var="shop"> 
      <tr>
        <td>${shop.name}</td>
        <td>${shop.number}</td>
        ...
      </tr>
    </c:forEach>

如何在jsp页面中获取值从spring控制器返回？

1 个答案: