struts2立体结构笔记_struts_其他

<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%> <jsp:useBean class="com.wgh.LinkmanForm" id="linkman"></jsp:useBean> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <% request.setCharacterEncoding("GBK"); %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'jstl.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"> </head> <body> <div style="font-size: 24px;">JSTL标签笔记</div><br/>  <div style="color:fuchsia;border: 1px aqua solid;">jstl c:out 输出标签 escapeXml属性</div> escapeXml属性值为false时：<c:out value="<hr>" escapeXml="false"></c:out> escapeXml属性值为true时：<c:out value="<hr>"></c:out> <hr/>  <div style="color:fuchsia;border: 1px aqua solid;">jstl 测试两种语法</div> 第一种语法格式：<c:out value="${user}" default="user值为空"></c:out><br/> 第二种语法格式：<c:out value="${user}">user值为空</c:out> <hr/>  <div style="color:fuchsia;border: 1px aqua solid;">jstl c:set 设置标签 </div> 应用语法1定义一个session范围内的变量user，值为 xiaofu<br/> <c:set var="user" value="xiaofu" scope="session"></c:set> 输出变量user的值为：${ sessionScope.user } <p/> 应用语法2定义一个request范围内的变量money，值为12.5*6的结果<br/> <c:set var="money" scope="request"> ${ 12.5*6 } </c:set> 输出变量money的值为：${ requestScope.money } <p/> 应用语法3为JavaBean "LinkmanForm"设置各种属性病应用<c:out>标签输出个属性值<br/> <c:set value="1" target="${linkman}" property="id"></c:set> <c:set value="xiaofu" target = "${linkman}" property="name"></c:set> id属性值为：<c:out value="${linkman.id}"></c:out><br/> name属性值：<c:out value="${linkman.name}"></c:out> <p/> 应用语法4为JavaBean "LinkmanForm" 设置各属性病应用<c:out>标签输出各种属性值<br/> <c:set target="${linkman}" property="tel">83952008</c:set> tel属性值为：<c:out value="${linkman.tel}"></c:out> <hr/>  <div style="color:fuchsia;border: 1px aqua solid;">c:remove移除标签</div> <c:set var="softName" value="小付JSTL笔记" scope="page"></c:set> 移除前输出变量softName的值：<c:out value="${pageScope.softName}" default="softName的值为空"></c:out> <br/> <c:remove var="softName" scope="page"/> 移除后输出变量softName的值：<c:out value="${pageScope.softName}" default="softName的值为空"></c:out> <hr/>  <div style="color:fuchsia;border: 1px aqua solid;">jstl c:out 输出标签 escapeXml属性</div> <c:catch var="exception"> <% int number = Integer.parseInt(request.getParameter("number")); out.println("合计金额："+521*number); %> </c:catch> 抛出异常信息:<c:out value="${exception}"></c:out> <hr/>  <div style="color:fuchsia;border: 1px aqua solid;">条件标签 c:if</div> 未来的世界是：方向比努力重要，能力比知识重要，健康比成绩重要，生活比文凭重要，情商比智商重要！ <c:if test="${empty param.comment}"> <form action="" method="post"> 评论： <textarea rows="4" cols="30" name="comment"></textarea> <br/> <br/> <input type="submit" value="发表评论"> </form> </c:if> <c:out value="${param.comment}"></c:out> <hr/>  <div style="color:fuchsia;border: 1px aqua solid;">条件标签 c:choose c:when c:otherwise</div> <c:if test="${not empty param.cuser}"> <c:set var="cuser" scope="session" value="${param.cuser}"></c:set> </c:if> <c:choose> <c:when test="${empty sessionScope.cuser}"> <form action="" method="post"> 用户名：<input name="cuser" type="text" id="cuser"/> <input type="submit" value="登录"><br/> </form> </c:when> <c:otherwise> 欢迎登录：${ sessionScope.cuser }[<a href="index.jsp" rel='nofollow' onclick='return false;'>退出</a>] </c:otherwise> </c:choose> <hr/>  <div style="color:fuchsia;border: 1px aqua solid;">条件标签 c:choose c:when c:otherwise 显示时间问候</div> <jsp:useBean id="now" class="java.util.Date"></jsp:useBean> <c:out value="${now.hours}"></c:out>:<c:out value="${now.minutes}"></c:out> <c:choose> <c:when test="${now.hours >= 0 && now.hours < 5}"> 凌晨好 </c:when> <c:when test="${now.hours >= 5 && now.hours < 8}"> 早上好 </c:when> <c:when test="${now.hours >= 8 && now.hours < 11}"> 上午好 </c:when> <c:when test="${now.hours >= 11 && now.hours < 13}"> 中午好 </c:when> <c:when test="${now.hours >= 13 && now.hours < 17}"> 下午好 </c:when> <c:otherwise> 晚上好 </c:otherwise> </c:choose> <hr/>  <div style="color:fuchsia;border: 1px aqua solid;">循环标签c:forEach</div> <% List<String> list = new ArrayList<String>(); list.add("床上等你"); list.add("CSDN"); list.add("http://www.csdn.net/"); request.setAttribute("list",list); %> 利用<c:forEcah>标签遍历List集合的结果如下：<br/> <c:forEach items="${requestScope.list}" var="key" varStatus="id" begin="0"> ${ id.index } ${ key }<br/> </c:forEach> <hr/>  <div style="color:fuchsia;border: 1px aqua solid;">循环标签c:forTokens</div> <c:set var="sourceStr" value="编程词典软件涵盖技术、函数、控件、实例、项目、方案、界面，以及所有实例程序。是开发人员必备的工具"></c:set> 原字符串：<c:out value="${sourceStr}"></c:out> <br/>******************分割后的字符串******************<br/> <c:forTokens items="${sourceStr}" delims="、，。" var="item"> ${ item }<br/> </c:forTokens> <hr/>  <div style="color:fuchsia;border: 1px aqua solid;">导入标签c:import</div> c:import导入标签<br/> <c:import url="index.jsp" charEncoding="GBK"></c:import> <hr/>  <div style="color:fuchsia;border: 1px aqua solid;">重定向标签c:redirect</div> 不传参数的重定向<br/> <c:redirect url=""></c:redirect><br/> 传参数的重定向<br/> <c:redirect url=""> <c:param name="user" value="xiaofu"></c:param> </c:redirect> <hr/>  <div style="color:fuchsia;border: 1px aqua solid;">生成URL标签c:url</div> <c:url value="index.jsp" var="url" scope="session"> <c:param name="user" value="xiaofu"></c:param> </c:url> <a href="${ url }" rel='nofollow' onclick='return false;'>生成的url</a> <hr/> </body> </html>