EL expression in jsp page doesn't work

controller code

package com.hp.controller;

import org.springframework.stereotype.Controller;
import org.springframework.validation.Errors;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

@Controller
@RequestMapping("/blog")
public class BlogController {
	@RequestMapping("/{id}")
	public ModelAndView blog(ModelAndView mv,@PathVariable("id") Integer id){
		mv.addObject("msg", id);
		mv.setViewName("blog");
		return mv;
	}

}


jsp page that accepts data


<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
${msg}
</body>
</html>


The running result is as shown in the figure EL expression does not work




Solution


One is to add this sentence to the jsp page


<%@page isELIgnored="false" %>

Then it is displayed normally. As shown in the figure






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Origin http://43.154.161.224:23101/article/api/json?id=324708949&siteId=291194637