礼悟：

好好学习合思考，尊师重道存感恩。叶见寻根三返一，江河湖海同一体。

虚怀若谷良心主，愿行无悔给最苦。读书锻炼强身心，诚劝且行且珍惜。

javaEE：7

javaSE：1.8

JSTL：1.2.2

server：tomcat 8.5

browser：Chrome/Firefox

os：windows7 x64

ide：MyEclipse 2017

项目结构

web.xml

Day11

index.html

index.htm

index.jsp

default.html

default.htm

default.jsp

addServlet

com.jizuiku.servlet.addServlet

addServlet

/addServlet

addServlet.java

package com.jizuiku.servlet;

import java.io.IOException;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

/**

*

*

* @author 博客园-给最苦

* @version V2017.11.20

*/

public class addServlet extends HttpServlet {

@Override

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

// TODO Auto-generated method stub

}

@Override

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

// TODO Auto-generated method stub

// 获取参数

String numStr = request.getParameter("num");

// 转换成十六进制

String numHexStr = Integer.toHexString(Integer.parseInt(numStr));

// 把结果保存到request域中

request.setAttribute("result", numHexStr);

// 转换到result.jsp

request.getRequestDispatcher("/addDemo/result.jsp").forward(request, response);;

}

}

form.jsp

String path = request.getContextPath();

String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

%>

My JSP ‘form.jsp‘ starting page

整数:

result.jsp

String path = request.getContextPath();

String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort()

+ path + "/";

%>

My JSP ‘result.jsp‘ starting page

hello,i am result.jsp

String arg = request.getParameter("num");

String result = (String)request.getAttribute("result");

%>

浏览器测试

学习资源：itcast和itheima视频库。如果您有公开的资源，可以分享给我的话，用您的资源学习也可以。

博文是观看视频后，融入思考写成的。博文好，是老师讲得好。博文坏，是 给最苦 没认真。