请老师检查。另外请求转发与响应重定向各自的参数是怎么写的啊？

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>单词查询</title>
</head>
<body>
	<form action="/WebDemo1/query">
	<input type="text" name="word" placeholder="请输入要查询的单词">
	<input type="submit" value="查询">
	</form>
</body>
</html>

<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>查询结果</title>
</head>
<body>
	<%
		String result = (String) request.getAttribute("result");
		out.println("<p style='color:blue'>"+result+"</p>");
	%>
</body>
</html>

<%@ page language="java" contentType="text/html; charset=UTF-8"
	pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>查询结果</title>
</head>
<body>
	<%
		String result = (String) session.getAttribute("result");
	out.println("<p style='color:red'>"+result+"</p>");
	%>
</body>
</html>

package com.imooc.servlet;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * Servlet implementation class Query
 */
@WebServlet("/query")
public class Query extends HttpServlet {
	private static final long serialVersionUID = 1L;

	/**
	 * @see HttpServlet#HttpServlet()
	 */
	public Query() {
		super();
		// TODO Auto-generated constructor stub
	}

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse
	 *      response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		Map<String, String> wordInfo = new HashMap();
		wordInfo.put("apple", "苹果");
		wordInfo.put("banana", "香蕉");
		wordInfo.put("Green", "绿色");
		wordInfo.put("big", "大");
		String word = request.getParameter("word");
		boolean exist = wordInfo.containsKey(word);
		if (exist) {
			request.setAttribute("result", wordInfo.get(word));
			request.getRequestDispatcher("/success.jsp").forward(request, response);
		} else {
			HttpSession session = request.getSession();
			session.setAttribute("result", "没有找到对应的单词解释！");
			response.sendRedirect("/WebDemo1/fail.jsp");
		}

	}

}