JavaWeb基礎 jsp+servlet分工合作的簡單樣本

最後更新：2017-12-06 來源：互聯網

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　　好好學習合思考，尊師重道存感恩。葉見尋根三返一，江河湖海同一體。
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       javaEE：7
       javaSE：1.8
          JSTL：1.2.2
      server：tomcat 8.5
    browser：Chrome/Firefox
             os：windows7 x64
            ide：MyEclipse 2017

項目結構

web.xml

<?xml version="1.0" encoding="UTF-8"?><web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">  <display-name>Day11</display-name>  <welcome-file-list>    <welcome-file>index.html</welcome-file>    <welcome-file>index.htm</welcome-file>    <welcome-file>index.jsp</welcome-file>    <welcome-file>default.html</welcome-file>    <welcome-file>default.htm</welcome-file>    <welcome-file>default.jsp</welcome-file>  </welcome-file-list>    <servlet>  <servlet-name>addServlet</servlet-name>  <servlet-class>com.jizuiku.servlet.addServlet</servlet-class>  </servlet>    <servlet-mapping>  <servlet-name>addServlet</servlet-name>  <url-pattern>/addServlet</url-pattern>  </servlet-mapping>  </web-app>

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 部落格園-給最苦  * @version V2017.11.20 */public class addServlet extends HttpServlet {@Overrideprotected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {// TODO Auto-generated method stub}@Overrideprotected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {// TODO Auto-generated method stub// 擷取參數String numStr = request.getParameter("num");// 轉換成十六進位 String numHexStr  = Integer.toHexString(Integer.parseInt(numStr));// 把結果儲存到request域中request.setAttribute("result", numHexStr);// 轉換到result.jsprequest.getRequestDispatcher("/addDemo/result.jsp").forward(request, response);;}}

form.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html>  <head>    <base href="<%=basePath%>">        <title>My JSP ‘form.jsp‘ starting page</title>    <meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0">    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><!--<link rel="stylesheet" type="text/css" href="styles.css">-->  </head>    <body><form action="/Day11/addServlet" method="post">整數:<input type="text" name="num"/><br /><input type="submit" value="提交"></form>      </body></html>

result.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort()+ path + "/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><base href="<%=basePath%>"><title>My JSP ‘result.jsp‘ starting page</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0"><meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><!--<link rel="stylesheet" type="text/css" href="styles.css">--></head><body>hello,i am result.jsp<br /><!-- 顯示結果 --><%String arg = request.getParameter("num");String result = (String)request.getAttribute("result");%><%="輸入的參數是:" + arg%><br /><%="運算的結果是:" + result%></body></html>

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學習資源：itcast和itheima視頻庫。如果您有公開的資源，可以分享給我的話，用您的資源學習也可以。
博文是觀看視頻後，融入思考寫成的。博文好，是老師講得好。博文壞，是給最苦沒認真。

JavaWeb基礎 jsp+servlet分工合作的簡單樣本

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