• Jsp应用EL和JSTL实例对比。


    普通方式:

    register.jsp

     1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8" contentType="text/html; charset=utf-8"%>
     2 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
     3 <html>
     4   <head>
     5   </head>
     6   
     7   <body>
     8   <h1>注册用户</h1>
     9   <form action="registerdo.jsp" method="post">
    10     <table>
    11         <tr>
    12             <td><label for="txtUserName">用户名:</label></td>
    13             <td><input type="text" name="txtUserName" id="txtUserName"/></td>
    14         </tr>
    15         <tr>
    16             <td><label for="txtLoginPwd">密码:</label></td>
    17             <td><input type="password" name="txtLoginPwd" id="txtLoginPwd"/></td>
    18         </tr>
    19         <tr>
    20             <td><label for="rdoMan">性别:</label></td>
    21             <td><input type="radio" name="rdoSex" checked="checked" value="1" id="rdoMan"/><label for="rdoMan">男士</label>
    22                 <input type="radio" name="rdoSex" value="0" id="rdoWoman"/><label for="rdoWoman">女士</label>
    23             </td>
    24         </tr>
    25         <tr>
    26             <td><label for="selEdu" id="selEdu">学历:</label></td>
    27             <td>
    28                 <select name="selEdu" id="selEdu">
    29                     <option value="小学">小学</option>
    30                     <option value="中学">中学</option>
    31                     <option value="大学">大学</option>
    32                 </select>
    33             </td>
    34         </tr>
    35         <tr>
    36             <td><label for="chkLan">爱好:</label></td>
    37             <td>
    38                 <input type="checkbox" name="chkHibby" id="chkLan" value="篮球"/><label for="chkLan">篮球</label>
    39                 <input type="checkbox" name="chkHibby" id="chkZu" value="足球"/><label for="chkZu">足球</label>
    40                 <input type="checkbox" name="chkHibby" id="chkPai" value="排球"/><label for="chkPai">排球</label>
    41             </td>
    42         </tr>
    43         <tr>
    44             <td colspan="2" style="text-align:center">
    45                 <input type="submit" value="注册"/>
    46                 <input type="reset" value="重填"/>
    47             </td>
    48         </tr>
    49     </table>
    50     </form>
    51   </body>
    52 </html>
    register.jsp

    registerdo.jsp

     1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8" contentType="text/html; charset=utf-8"%>
     2 <%
     3     request.setCharacterEncoding("utf-8");
     4     String userName = request.getParameter("txtUserName");
     5     String loginPwd = request.getParameter("txtLoginPwd");
     6     String sex = request.getParameter("rdoSex");
     7     sex = sex.equals("1")? "" :"";
     8     String edu = request.getParameter("selEdu");
     9     String[] hibbys = request.getParameterValues("chkHibby");
    10 %>
    11 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    12 <html>
    13   <head>
    14   </head>
    15   <body>
    16       <h1>request.getParameter()</h1>
    17     <table>
    18         <tr>
    19             <td>用户名:</td>
    20             <td><%=userName %></td>
    21         </tr>
    22         <tr>
    23             <td>密码:</td>
    24             <td><%=loginPwd %></td>
    25         </tr>
    26         <tr>
    27             <td>性别:</td>
    28             <td><%=sex %></td>
    29         </tr>
    30         <tr>
    31             <td>学历:</td>
    32             <td><%=edu %></td>
    33         </tr>
    34         <tr>
    35             <td>爱好:</td>
    36             <td>
    37                 <%
    38                     for(int i = 0 ; i < hibbys.length ; i++){
    39                         String hibby = hibbys[i];
    40                         out.print(hibby);
    41                         if(i != hibbys.length-1){
    42                             out.print(",");
    43                         }
    44                     }
    45                 %>
    46             </td>
    47         </tr>
    48     </table>
    49   </body>
    50 </html>
    registerdo.jsp

    EL和JSTL方式:

    registerjstl.jsp

     1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
     2 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
     3 <html>
     4   <head>
     5   </head>
     6   <body>
     7   <h1>注册用户</h1>
     8   <form action="registerjstldo.jsp" method="post">
     9     <table>
    10         <tr>
    11             <td><label for="txtUserName">用户名:</label></td>
    12             <td><input type="text" name="txtUserName" id="txtUserName"/></td>
    13         </tr>
    14         <tr>
    15             <td><label for="txtLoginPwd">密码:</label></td>
    16             <td><input type="password" name="txtLoginPwd" id="txtLoginPwd"/></td>
    17         </tr>
    18         <tr>
    19             <td><label for="rdoMan">性别:</label></td>
    20             <td><input type="radio" name="rdoSex" checked="checked" value="1" id="rdoMan"/><label for="rdoWan">男士</label>
    21                 <input type="radio" name="rdoSex" value="0" id="rdoWoman"/><label for="rdoWoman">女士</label>
    22             </td>
    23         </tr>
    24         <tr>
    25             <td><label for="selEdu" id="selEdu">学历:</label></td>
    26             <td>
    27                 <select name="selEdu" id="selEdu">
    28                     <option value="小学">小学</option>
    29                     <option value="中学">中学</option>
    30                     <option value="大学">大学</option>
    31                 </select>
    32             </td>
    33         </tr>
    34         <tr>
    35             <td><label for="chkLan">爱好:</label></td>
    36             <td>
    37                 <input type="checkbox" name="chkHibby" id="chkLan" value="篮球"/><label for="chkLan">篮球</label>
    38                 <input type="checkbox" name="chkHibby" id="chkZu" value="足球"/><label for="chkZu">足球</label>
    39                 <input type="checkbox" name="chkHibby" id="chkPai" value="排球"/><label for="chkPai">排球</label>
    40             </td>
    41         </tr>
    42         <tr>
    43             <td colspan="2" style="text-align:center">
    44                 <input type="submit" value="注册"/>
    45                 <input type="reset" value="重填"/>
    46             </td>
    47         </tr>
    48     </table>
    49     </form>
    50   </body>
    51 </html>
    registerjstl.jsp

    registerjstldo.jsp

     1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
     2 <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="asp"%>
     3 <%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn"%>
     4 
     5 <%
     6     request.setCharacterEncoding("utf-8");
     7 %>
     8 
     9 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    10 <html>
    11 <head>
    12 </head>
    13 
    14 <body>
    15     <h1>EL和JSTL</h1>
    16     <table>
    17         <tr>
    18             <td>用户名:</td>
    19             <td>${param.txtUserName}</td>
    20         </tr>
    21         <tr>
    22             <td>密码:</td>
    23             <td>${param.txtLoginPwd}</td>
    24         </tr>
    25         <tr>
    26             <td>性别:</td>
    27             <td>
    28                 <asp:if test='${param.rdoSex=="1"}'>
    29 30                 </asp:if>
    31                 <asp:if test='${param.rdoSex=="0"}'>
    32 33                 </asp:if>
    34             </td>
    35         </tr>
    36         <tr>
    37             <td>学历:</td>
    38             <td>${param.selEdu}</td>
    39         </tr>
    40         <tr>
    41             <td>爱好:</td>
    42             <td>
    43                 <asp:forEach var="hibby" items="${paramValues.chkHibby}" varStatus="item">
    44                     ${hibby}
    45                     <asp:if test="${item.index != fn:length(paramValues.chkHibby) - 1 }">
    46                     ,
    47                     </asp:if>
    48                 </asp:forEach>
    49             </td>
    50         </tr>
    51     </table>
    52 </body>
    53 </html>
    registerjstldo.jsp
  • 相关阅读:
    TWaver网元动态转动效果
    替换TWaver中Tree展开合并图标
    MOSS 2010:Visual Studio 2010开发体验(10)——列表开发之内容类型
    MOSS 2010:Visual Studio 2010开发体验(8)——Silverlight应用
    MOSS 2010:Visual Studio 2010开发体验(13)——列表开发之列表实例
    MOSS 2010:Visual Studio 2010开发体验(5)——Mapped Folder
    MOSS 2010:Visual Studio 2010开发体验(6)——开发WebPart
    MOSS 2010:Visual Studio 2010开发体验(7)——AJAX Web Part
    MOSS 2010:Visual Studio 2010开发体验(11)——扩展SharePoint Explorer
    MOSS 2010:Visual Studio 2010开发体验(12)——列表开发之列表定义
  • 原文地址:https://www.cnblogs.com/qiyebao/p/3699561.html
Copyright © 2020-2023  润新知