📄 入門 05 - 簡介actionmapping類別 - javaworld@tw.htm
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簡介ActionMapping類別</SPAN> </DIV>
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<DIV class=pagesubheading>Last changed on Oct 27, 2004 by <A
href="http://www.javaworld.com.tw/confluence/display/~koji">koji
lin</A>
</DIV><!-- page content --> 在Struts中，ActionServlet只是任務的分派者，它依請求分配任務給其它的物件來執行，而分配的依據是請求的URI以及struts-config.xml的<action-mappings>標籤所設定的內容。<BR> <action-mappings>用來描述一組ActionMapping物件，當中的每一個<action>標籤都對應一個
ActionMapping物件，當客戶端發出請求至ActionServlet時，ActionServlet根據其URI及<
action>標籤設定的path屬性查看對應的ActionMapping物件，ActionMapping物件會告訴
ActionServlet該使用哪一個Action物件（在<action>標籤中使用type屬性設定），而ActionServlet
再將工作交給該Action物件來執行。<BR> 舉個例子來說，如果<action-mappings>設定如下：
<DIV class=code
style="BORDER-TOP-STYLE: solid; BORDER-RIGHT-STYLE: solid; BORDER-LEFT-STYLE: solid; BORDER-BOTTOM-STYLE: solid">
<DIV class=codeContent><PRE><action-mappings>
<action
path=<SPAN class=java-quote>"Login"</SPAN>
type=<SPAN class=java-quote>"onlyfun.caterpillar.LoginAction"</SPAN>>
....
</action>
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