?? 常用的struts 2_0的標志（tag）介紹 - max on java - blogjava.htm
字號:
<TD>Object/String</TD>
<TD>用來標識元素的id。在UI和表單中為HTML的id屬性 </TD></TR></TBODY></TABLE>
<P>例子：<BR>請參考例4。 </P></DIV>
<LI style="FONT-SIZE: 12px">set
<DIV style="FONT-WEIGHT: normal">
<P>描述：<BR>set標簽賦予變量一個特定范圍內的值。當希望給一個變量賦一個復雜的表達式,每次訪問該變量而不是復雜的表達式時用到。其在兩種情況下非常有用:
復雜的表達式很耗時 (性能提升) 或者很難理解 (代碼可讀性提高)。 </P>
<P>參數： </P>
<TABLE
style="BORDER-TOP: #008000 2px solid; BORDER-BOTTOM: #008000 2px solid"
cellSpacing=0 cellPadding=4 border=0>
<TBODY>
<TR>
<TD
style="FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc">名稱</TD>
<TD
style="FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc">必需</TD>
<TD
style="FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc">默認</TD>
<TD
style="FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc">類型</TD>
<TD
style="FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc">描述</TD></TR>
<TR>
<TD>name</TD>
<TD>是</TD>
<TD></TD>
<TD>String</TD>
<TD>變量名字</TD></TR>
<TR>
<TD>scope</TD>
<TD>否</TD>
<TD></TD>
<TD>String</TD>
<TD>變量作用域,可以為application, session, request, page, 或action.</TD></TR>
<TR>
<TD>value</TD>
<TD>否</TD>
<TD></TD>
<TD>Object/String</TD>
<TD>將會賦給變量的值</TD></TR>
<TR>
<TD>id</TD>
<TD>否</TD>
<TD></TD>
<TD>Object/String</TD>
<TD>用來標識元素的id。在UI和表單中為HTML的id屬性 </TD></TR></TBODY></TABLE>
<P>例子：<BR>請參考例1。 </P></DIV>
<LI style="FONT-SIZE: 12px">text
<DIV style="FONT-WEIGHT: normal">
<P>描述：<BR>支持國際化信息的標簽。國際化信息必須放在一個和當前action同名的resource
bundle中,如果沒有找到相應message,tag body將被當作默認message,如果沒有tag
body,message的name會被作為默認message。 </P>
<P>參數： </P>
<TABLE
style="BORDER-TOP: #008000 2px solid; BORDER-BOTTOM: #008000 2px solid"
cellSpacing=0 cellPadding=4 border=0>
<TBODY>
<TR>
<TD
style="FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc">名稱</TD>
<TD
style="FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc">必需</TD>
<TD
style="FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc">默認</TD>
<TD
style="FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc">類型</TD>
<TD
style="FONT-WEIGHT: bold; BORDER-BOTTOM: #008000 1px solid; HEIGHT: 21px; BACKGROUND-COLOR: #ccffcc">描述</TD></TR>
<TR>
<TD>name</TD>
<TD>是</TD>
<TD></TD>
<TD>String</TD>
<TD>資源屬性的名字</TD></TR>
<TR>
<TD>id</TD>
<TD>否</TD>
<TD></TD>
<TD>Object/String</TD>
<TD>用來標識元素的id。在UI和表單中為HTML的id屬性 </TD></TR></TBODY></TABLE>
<P>例子：<BR>請參考例3。 </P></DIV>
<LI style="FONT-SIZE: 12px">url
<DIV style="FONT-WEIGHT: normal">
<P>描述：<BR>該標簽用于創建url,可以通過"param"標簽提供request參數。 </P>
<P style="TEXT-ALIGN: center"></P>
<TABLE
style="BORDER-RIGHT: #f0c000 1px solid; BORDER-TOP: #f0c000 1px solid; BORDER-LEFT: #f0c000 1px solid; BORDER-BOTTOM: #f0c000 1px solid; BACKGROUND-COLOR: #ffffce"
cellSpacing=0 cellPadding=0 border=0>
<TBODY>
<TR>
<TD
style="PADDING-RIGHT: 4px; PADDING-LEFT: 4px; PADDING-BOTTOM: 4px; PADDING-TOP: 4px; HEIGHT: 39px"><IMG
src="常用的Struts 2_0的標志（Tag）介紹 - Max On Java - BlogJava.files/lightbulb_on.gif"></TD>
<TD
style="PADDING-RIGHT: 4px; PADDING-LEFT: 4px; PADDING-BOTTOM: 4px; PADDING-TOP: 4px; FONT-FAMILY: 華文仿宋; HEIGHT: 39px"
align=left>當includeParams的值時'all'或者'get',
param標簽中定義的參數將有優先權,也就是說其會覆蓋其他同名參數的值。 </TD></TR></TBODY></TABLE>
<P>參數： 略</P>
<P>例子： </P>
<DIV
style="BORDER-RIGHT: #cccccc 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: #cccccc 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: #cccccc 1px solid; WIDTH: 98%; WORD-BREAK: break-all; PADDING-TOP: 4px; BORDER-BOTTOM: #cccccc 1px solid; BACKGROUND-COLOR: #eeeeee"><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #ffff00"><%</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">@ page contentType</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">=</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">"</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">text/html; charset=UTF-8</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">"</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5"> </SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #ffff00">%></SPAN><SPAN
style="COLOR: #000000"><BR></SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #ffff00"><%</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">@ taglib prefix</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">=</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">"</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">s</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">"</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5"> uri</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">=</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">"</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">/struts-tags</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">"</SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5"> </SPAN><SPAN
style="COLOR: #000000; BACKGROUND-COLOR: #ffff00">%></SPAN><SPAN
style="COLOR: #000000"><BR></SPAN><SPAN
style="COLOR: #0000ff"><!</SPAN><SPAN
style="COLOR: #ff00ff">DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"><BR></SPAN><SPAN
style="COLOR: #0000ff"><</SPAN><SPAN
style="COLOR: #800000">html</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"><BR> </SPAN><SPAN
style="COLOR: #0000ff"><</SPAN><SPAN
style="COLOR: #800000">head</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"><BR> </SPAN><SPAN
style="COLOR: #0000ff"><</SPAN><SPAN
style="COLOR: #800000">title</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000">URL</SPAN><SPAN
style="COLOR: #0000ff"></</SPAN><SPAN
style="COLOR: #800000">title</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"><BR> </SPAN><SPAN
style="COLOR: #0000ff"></</SPAN><SPAN
style="COLOR: #800000">head</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"><BR> </SPAN><SPAN
style="COLOR: #0000ff"><</SPAN><SPAN
style="COLOR: #800000">body</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"><BR> </SPAN><SPAN
style="COLOR: #0000ff"><</SPAN><SPAN
style="COLOR: #800000">h3</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000">URL</SPAN><SPAN
style="COLOR: #0000ff"></</SPAN><SPAN
style="COLOR: #800000">h3</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"> <BR> </SPAN><SPAN
style="COLOR: #0000ff"><</SPAN><SPAN
style="COLOR: #800000">a </SPAN><SPAN
style="COLOR: #ff0000">href</SPAN><SPAN
style="COLOR: #0000ff">='<s:url </SPAN><SPAN
style="COLOR: #ff0000">value</SPAN><SPAN
style="COLOR: #0000ff">="/i18n.jsp"</SPAN><SPAN
style="COLOR: #ff0000"> </SPAN><SPAN
style="COLOR: #0000ff">/></SPAN><SPAN
style="COLOR: #000000">'>i18n</SPAN><SPAN
style="COLOR: #0000ff"></</SPAN><SPAN
style="COLOR: #800000">a</SPAN><SPAN
style="COLOR: #0000ff">><</SPAN><SPAN
style="COLOR: #800000">br </SPAN><SPAN
style="COLOR: #0000ff">/></SPAN><SPAN
style="COLOR: #000000"><BR> </SPAN><SPAN
style="COLOR: #0000ff"><</SPAN><SPAN
style="COLOR: #800000">s:url </SPAN><SPAN
style="COLOR: #ff0000">id</SPAN><SPAN
style="COLOR: #0000ff">="url"</SPAN><SPAN
style="COLOR: #ff0000"> value</SPAN><SPAN
style="COLOR: #0000ff">="/condition.jsp"</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"><BR> </SPAN><SPAN
style="COLOR: #0000ff"><</SPAN><SPAN
style="COLOR: #800000">s:param </SPAN><SPAN
style="COLOR: #ff0000">name</SPAN><SPAN
style="COLOR: #0000ff">="name"</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000">Max</SPAN><SPAN
style="COLOR: #0000ff"></</SPAN><SPAN
style="COLOR: #800000">s:param</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"><BR> </SPAN><SPAN
style="COLOR: #0000ff"></</SPAN><SPAN
style="COLOR: #800000">s:url</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"> <BR> </SPAN><SPAN
style="COLOR: #0000ff"><</SPAN><SPAN
style="COLOR: #800000">s:a </SPAN><SPAN
style="COLOR: #ff0000">href</SPAN><SPAN
style="COLOR: #0000ff">="%{url}"</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000">if\elseif\else</SPAN><SPAN
style="COLOR: #0000ff"></</SPAN><SPAN
style="COLOR: #800000">s:a</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"><BR> </SPAN><SPAN
style="COLOR: #0000ff"></</SPAN><SPAN
style="COLOR: #800000">body</SPAN><SPAN
style="COLOR: #0000ff">></SPAN><SPAN
style="COLOR: #000000"><BR></SPAN><SPAN
style="COLOR: #0000ff"></</SPAN><SPAN
style="COLOR: #800000">html</SPAN><SPAN
style="COLOR: #0000ff">></SPAN></DIV><SPAN
style="FONT-SIZE: smaller; FONT-STYLE: italic">例5 url.jsp</SPAN>
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