📄 入門 14 - forwardaction,includeaction,switchaction - javaworld@tw.htm
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style="BORDER-BOTTOM-STYLE: solid"><B>struts-config.xml</B></DIV>
<DIV class=codeContent><PRE><global-forwards>
<forward
name=<SPAN class=java-quote>"login"</SPAN>
contextRelative=<SPAN class=java-quote>"<SPAN class=java-keyword>true</SPAN>"</SPAN>
path=<SPAN class=java-quote>"/login/Login.<SPAN class=java-keyword>do</SPAN>"</SPAN>
redirect=<SPAN class=java-quote>"<SPAN class=java-keyword>true</SPAN>"</SPAN>/>
</global-forwards></PRE></DIV></DIV><BR> 這是在全區可查找的 forward
中的設定，在<action>標籤中也可以像上面一樣使用<forward>標籤,，例如：
<DIV class=code
style="BORDER-TOP-STYLE: solid; BORDER-RIGHT-STYLE: solid; BORDER-LEFT-STYLE: solid; BORDER-BOTTOM-STYLE: solid">
<DIV class=codeHeader
style="BORDER-BOTTOM-STYLE: solid"><B>struts-config.xml</B></DIV>
<DIV class=codeContent><PRE><action … >
<forward
name=<SPAN class=java-quote>"login"</SPAN>
contextRelative=<SPAN class=java-quote>"<SPAN class=java-keyword>true</SPAN>"</SPAN>
path=<SPAN class=java-quote>"/login/Login.<SPAN class=java-keyword>do</SPAN>"</SPAN>
redirect=<SPAN class=java-quote>"<SPAN class=java-keyword>true</SPAN>"</SPAN>/>
</action></PRE></DIV></DIV><BR> 另一切換模組的方法就是使用SwitchAction，它需要在請求中帶兩個參數，一個是prefix，用來指定模組前綴名稱，一個是page，用來指定相對於模組的資源路徑，例如我們可以這麼設定：
<DIV class=code
style="BORDER-TOP-STYLE: solid; BORDER-RIGHT-STYLE: solid; BORDER-LEFT-STYLE: solid; BORDER-BOTTOM-STYLE: solid">
<DIV class=codeHeader
style="BORDER-BOTTOM-STYLE: solid"><B>struts-config.xml</B></DIV>
<DIV class=codeContent><PRE><action-mappings>
<action
path=<SPAN class=java-quote>"/LoginSwitch"</SPAN>
type=<SPAN class=java-quote>"org.apache.struts.actions.SwitchAction"</SPAN>/>
</action-mappings></PRE></DIV></DIV><BR> 之後我們可以使用這樣的路徑與參數來請求login模組的Login.do：
<DIV class=code
style="BORDER-TOP-STYLE: solid; BORDER-RIGHT-STYLE: solid; BORDER-LEFT-STYLE: solid; BORDER-BOTTOM-STYLE: solid">
<DIV class=codeContent><PRE>http:<SPAN class=java-comment>//localhost:8080/HelloStruts/LoginSwitch.<SPAN class=java-keyword>do</SPAN>?prefix=/login&page=/Login.<SPAN class=java-keyword>do</SPAN></SPAN></PRE></DIV></DIV><!-- page content ends --><!--<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/"><rdf:Description rdf:about="http://www.javaworld.com.tw/confluence/pages/viewpage.action?pageId=594" dc:identifier="http://www.javaworld.com.tw/confluence/pages/viewpage.action?pageId=594" dc:title="入門 14 - ForwardAction,IncludeAction,SwitchAction" trackback:ping="http://www.javaworld.com.tw/confluence/rpc/trackback/594"/></rdf:RDF>-->
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(6) <BR><A title=http://www.baidu.com/s?wd=switchaction&cl=3
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(4) <BR><A title=http://www.baidu.com/s?wd=forwardaction&cl=3
href="http://www.baidu.com/s?wd=forwardaction&cl=3">http://www.baidu.com/s?wd=forwardaction&cl=3</A>
(4) <BR><A
title=http://www.baidu.com/baidu?wd=ForwardAction&cl=3
href="http://www.baidu.com/baidu?wd=ForwardAction&cl=3">http://www.baidu.com/baidu?wd=ForwardAction&cl=3</A>
(3) <BR><A title=http://www.baidu.com/baidu?wd=SwitchAction&cl=3
href="http://www.baidu.com/baidu?wd=SwitchAction&cl=3">http://www.baidu.com/baidu?wd=SwitchAction&cl=3</A>
(3) <BR><A title=http://www.baidu.com/s?wd=IncludeAction&cl=3
href="http://www.baidu.com/s?wd=IncludeAction&cl=3">http://www.baidu.com/s?wd=IncludeAction&cl=3</A>
(3) <BR></SPAN>
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