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2013年11月30日 ⁄ 综合 ⁄ 共 4987字 ⁄ 字号小中大 ⁄ 评论关闭

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国际化标签和el函数库

pageContext.setAttribute("person",new Person());

<jsp:useBean id="person" class="cn.itcast.domain.Person">

yyyy

</jsp:useBean>

<%=person.getName() %>

<head> <title>jsp:setProperty标签</title> </head> <body> <jsp:useBean id="person" class="cn.itcast.domain.Person"/> <jsp:setProperty name="person" property="name" value="zzzz"/> <jsp:setProperty name="person" property="birthday" value="<%=new Date() %>"/> <%=person.getName() %> <%=person.getBirthday() %> <jsp:getProperty name="person" property="name"/> <br/>----------http://localhost:8080/day08/2.jsp?name=kkkk------------<br/> <jsp:setProperty name="person" property="name" param="name"/> <%=person.getName() %> <br/>----------http://localhost:8080/day08/2.jsp?name=kkkk&age=12------------<br/> <jsp:setProperty name="person" property="*"/> <%=person.getName() %> <%=person.getAge() %> </body>

<title>el表达式</title> </head> <body> <% Person p = new Person(); p.setName("flx"); request.setAttribute("person",p); %> ${person.name }  <% p = new Person(); Address address = new Address(); address.setCity("北京"); p.setAddress(address); request.setAttribute("person",p); %> ${person.address.city } <% Person p1 = new Person("aaa"); Person p2 = new Person("bbb"); Person p3 = new Person("ccc"); List list = new ArrayList(); list.add(p1); list.add(p2); list.add(p3); request.setAttribute("list",list); %> ${list[0].name } <% Map map = new HashMap(); map.put("1",new Person("aa")); map.put("2",new Person("bb")); map.put("3",new Person("cc")); request.setAttribute("map",map); %> ${map['2'].name } ${pageContext.request.contextPath } <a href="${pageContext.request.contextPath }/servlet/LoginServlet" mce_href="${pageContext.request.contextPath }/servlet/LoginServlet">登陆</a>

jstl+ el获取数据

<head> <title>使用jstl+el获取数据</title> </head> <body> <% Person p1 = new Person("aaa"); Person p2 = new Person("bbb"); Person p3 = new Person("ccc"); List list = new ArrayList(); list.add(p1); list.add(p2); list.add(p3); request.setAttribute("list",list); %> <c:forEach var="p" items="${list}"> ${p.name }<br/> </c:forEach> <% Map map = new HashMap(); map.put("1",new Person("aa")); map.put("2",new Person("bb")); map.put("3",new Person("cc")); request.setAttribute("map",map); %> <c:forEach var="entry" items="${map}"> ${entry.key }=${entry.value.name }<br/> </c:forEach> <c:if test="${user!=null}"> 欢迎您：${user.username } </c:if> <c:if test="${user==null}"> <form> 用户名：<input type="text" name="username"> 密码：<input type="password" name="password"> <input type="submit" value="登陆"> </form> </c:if>

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">

  <head>
    <title>My JSP '6.jsp' starting page</title>
    
    <style type="text/css">
     .even{
      background-color: #CCCCFF;
     }
     .odd{
      background-color: #CC99FF;
     }
     
     tr:hover{
      background-color: #FFFF33;
      cursor:hand;
     }
    </style>
  </head>

<br/>------------------c:catch-------------------<br/>
   
   <c:catch var="exception">
   		<% 
   			int x = 1/0;
   		%>
   </c:catch>
   ${exception.cause }<br/>
   ${exception.message }<br/>
   ${exception.stackTrace }<br/>
   
   
   <br/>------------------c:if-------------------<br/>
   <c:if var="a1" test="${sessionScope.user==null}"></c:if>
   ${a1 }
   
   
   <br/>------------------c:foreach-------------------<br/>
   
   <c:forEach var="num" begin="1" end="10">
   	${num }
   </c:forEach>
   
   <br/>------------------c:foreach实现表格间色-------------------<br/>
    
    <%
    	List list = new ArrayList();
    	list.add("aaa"); 
    	list.add("bbb"); 
    	list.add("ccc"); 
    	list.add("ddd"); 
    	list.add("eee"); 
    	list.add("fff"); 
    	request.setAttribute("list",list);
    %>
  
   <table border="1" width="20%">
   		<c:forEach var="str" items="${list}" varStatus="status">
   			<tr class='${status.count%2==0?'even':'odd' }'>
   				<td>${str }</td>
   			</tr>
   		</c:forEach>
   </table> 
    
   <br/>------------------c:url-------------------<br/>
   <c:url var="url" value="/1.jsp">
   	<c:param name="username" value="中国"/>
   	<c:param name="password" value="123"/>
   </c:url>
   <a href="${url }">点点</a>
      
   <c:url value="/2.jsp"/>
    
   <br/>------------------c:fortokens-------------------<br/>
    
    <% 
    	String s = "aaa,bbb,ccc";
    	request.setAttribute("s",s);
    %>
    <c:forTokens var="str" items="${s}" delims=",">
    	${str }
    </c:forTokens>

国际化标签和el函数库

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>sun el函数库</title>
  </head>
  
  <body>
    ${fn:trim("  aaa     ") }
    
    
    <br/>------------------------------------<br/>
    <% 
    	List list = new ArrayList();
    	list.add("aaa");
    	list.add("bbb");
    	list.add("ccc");
    	request.setAttribute("list",list);
    %>
    
    <c:forEach var="num" begin="0" end="${fn:length(list)}">
    	${list[num] }<br/>
    </c:forEach>
    
    ${fn:length("aaaa") }
    
    
    <br/>------------------------------------<br/>
    
    ${fn:split("aaa,bbb,ccc",",")}
    <c:forEach var="str" items=''>
    	${str }
    </c:forEach>
    
    
    <br/>------------------------------------<br/>
     <% 
    	String arr[] = {"aaa","bbb","ccc"};
    	request.setAttribute("arr",arr);
    %>
    ${fn:join(arr,"-") }
    
    
    <br/>------------------------------------<br/>
    
    ${fn:escapeXml('<a href="">点点</a>')}
    
  </body>
</html>

【上篇】gcc 编译过程
【下篇】解决cgi程序在firefox中输出html代码的问题

作者: roue

该日志由 roue 于10年前发表在综合分类下，最后更新于 2013年11月30日.
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