springmvc----demo2---a->b--bai

1.jsp

2.jsp

3.jsp

LianxiAction:

package com.etc.controller;

import javax.servlet.http.HttpSession;

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

@Controller
public class LianxiAction {
	@RequestMapping("2")
	public String do2(@RequestParam(value="a",required=true)String a
			,HttpSession session)
	{
		session.setAttribute("a", a);
		return "2";
	}

	@RequestMapping("3")
	public String do3(@RequestParam(value="b",required=true)String b
			,HttpSession session)
	{
		session.setAttribute("b", b);
		return "3";
	}
}