spring mvc中controller怎么传递参数到jsp页面中的java代码块

试了一下在返回值是String的方法

request.setAttribute("...", object);

没用
再试了下void方法使用request, response

request.setAttribute(("...", object);
request.getRequestDispatcher("...").forward(request, response);

也没用

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2条回答

小肥的胖 2019-04-10 22:45

关注

我这样是可以的

@Controller
@RequestMapping(value="bookModule")
public class BookModuleController {
    @RequestMapping(value="/viewBooklist")
    public String viewBooklist(Integer id, HttpServletRequest request) {
        request.setAttribute("id", id);
        return "/viewBooklist";
    }
}

另外也可以用ModelAndView

-----------------------------分割线

controller

package net.linxingyang.controller;

import javax.servlet.http.HttpServletRequest;

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

@Controller
@RequestMapping(value="test")
public class TestController {

    @RequestMapping(value="/index")
    public String viewBooklist(Integer id, HttpServletRequest request) {
        System.out.println("id=" + id);
        request.setAttribute("id", id);
        return "/index";
    }
}

index.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<html>
<body>
first --> ${id }<br/><br/>
second --> 
<% 
    Integer id = (Integer)request.getAttribute("id");
    out.write("id=" + id);
%>
</body>
</html>

结果

图片说明