Struts学习笔记: Bean标签库学习

bean标签库
 
1. <bean:header>  #0968f7
 
    <bean:header id="custlang" name="accept-language"/>
    here: <bean:write name="custlang"/>
=>
    here: zh-cn,en-us;q=0.5
 
2. <bean:parameter>
 
    <bean:parameter id="bookid" name="id" value="0"/><%--value是默认值-%>
    请求的图书编号为: <bean:write name="bookid"/>
=>
    请求的图书编号为: 8 <!-- http://localhost/addressbook/myjsp.jsp?id=8-->
 
    <bean:parameter id="custnames" multiple="true" name="names" value="hehe"/>
    请求的客户姓名有: <p/>
    <%
     for( int i = 0 ; i < custnames.length; i++ ) {
      out.print(custnames[i] + "__");
     }
    %>
=>
    请求的客户姓名有: <p/>
    cheyo__vsftpd__google__
 
3. <bean:cookie>
 
    cookies: <bean:cookie id="customer" name="custname" value="cheyo"/>
    您好,<bean:write name="customer" property="value"/>
=>
    cookies:
    您好,cheyo
 
4. <bean:page>
 
    <bean:page id="currsession" property="session"/>
    当前会话创建时间: <bean:write name="currsession" property="creationtime"/>
=>
    当前会话创建时间: 1111993122390
   
5. <bean:message>
 
<1>
    <bean:message bundle="test" key="test.name"/><p/>
<2>
    <%
        request.setattribute("stringbean", "test.nick");
    %>
    <bean:message bundle="test" name="stringbean"/>
<3>
    <%
        somebean bean = new somebean();
        bean.setname("hello");
        request.setattribute("somebean", bean);
    %>
    <bean:message bundle="test" name="somebean" property="name"/>
<4>
    <bean:message bundle="test" key="test.error" arg0="联系地址!"/>
    <!--test.error={0} is requried!-->
 
6. <bean:resource>
 
以下为test页面的内容:<p/>
    <bean:resource id="testpage"  name="test/testds.jsp"/>
    <bean:write name="testpage"/>
   
7. <bean:struts>
 
   <bean:struts id="successforward" forward="aaaa"/>
   <bean:write name="successforward" property="path"/>
=>
   /hello.jsp
 
8. <bean:include>
 
以下为include进的内容：<p/>
<bean:include id="includereg" forward="success"/>
<bean:write name="includereg" filter="false" />
<p/>

以下为include进的内容3：<p/>
<bean:include id="includereg" page="/hello.jsp"/><%--一定要以/开头--%>
<bean:write name="includereg" filter="false" />
 
9. <bean:define>
 
<1>
    <bean:define id="currdate" value="2005-03-28"/>
    <bean:write name="currdate"/>
<2>
<%
    user user = new user();
    user.setusername("cheyo");
    request.setattribute("userbean", user);
%>
    <bean:define id="curruser" name="userbean"/>
    当前用户姓名: <bean:write name="curruser" property="username"/>
<%-- 注意: 上面加下划线的"user"这一变量名不应与红色下划线的"curruser"这一变量名相同! 否则会报错! -->
   
10. <bean:size>
 
<%
    hashmap lines = new hashmap();
    lines.put("1", "line1");
    lines.put("2", "line2");
    lines.put("3", "line3");
    request.setattribute("lines", lines);
%>
<bean:size id="linesize" name="lines"/>
线的数量:
<bean:write name="linesize"/>
 
11. <bean:write>
 
<1>
 
<%
    request.setattribute("floatval", float.valueof("3.14159"));
    calendar gc = gregoriancalendar.getinstance();
    gc.settime(new date(session.getcreationtime()));
    request.setattribute("now", gc);
%>
pi is : <bean:write format="#.####" name="floatval"/><p/>
session started at: <bean:write format="mm-dd-yyyy hh:mm:ss" name="now" property="time"/>
 
<2>
 
<%
    string boldstart = "<b>";
    string boldend = "</b>";
    request.setattribute("bs", boldstart);
    request.setattribute("be", boldend);
%>
<bean:write name="bs"/>哈哈哈哈<bean:write name="be"/><p/> <%--输出<b>哈哈哈哈</b>--%>
<bean:write name="bs" filter="false"/>加粗的哈哈哈哈<bean:write name="be" filter="false"/><p/>
 
=>
    &lt;b&gt;哈哈哈哈&lt;/b&gt;<p/>
    <b>加粗的哈哈哈哈</b><p/>