spring MVC jsp页面EL表达式无效

最新推荐文章于 2020-03-30 22:34:25 发布

转载最新推荐文章于 2020-03-30 22:34:25 发布 · 2.1k 阅读

文章标签：

#spring mvc #jsp #EL表达式

java 专栏收录该内容

21 篇文章

订阅专栏

本文讨论了在使用Spring MVC框架进行Web开发时，遇到ModelAndView对象中的属性无法通过EL表达式正确显示于JSP页面的问题，并提供了可能的解决方案。

转载地址：详情

ModelAndView’s model value is not displayed in JSP via EL

Problem

In Spring MVC development, developer try to set a value into a model, and display the value in JSP via EL, e.g ${msg}, but it just outputs the result as it is – ${msg}, not the “value” stored in the model. The EL is just not working in JSP, why?

Spring’s Controller

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractController;

public class ABCController extends AbstractController{

	@Override
	protected ModelAndView handleRequestInternal(HttpServletRequest request,
		HttpServletResponse response) throws Exception {

		ModelAndView model = new ModelAndView("HelloWorldPage");
		model.addObject("msg", "hello world");
		
		return model;
	}
	
}