📄 入門 15 - 使用dispatchaction類別 - javaworld@tw.htm
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}
<SPAN class=java-keyword>public</SPAN> ActionForward method1(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
<SPAN class=java-keyword>throws</SPAN> Exception {
<SPAN class=java-comment>// 進行一些method1的邏輯</SPAN>
......
}
.....
}</PRE></DIV></DIV><BR> 我們不再重新定義execute()方法，而是定義我們自己的login()、logout()等方法，這些方法接收與execute()相同的參數，並且也傳回ActionForward物件。<BR> 使用DispatchAction時，我們要在struts-config.xml定義：
<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
path=<SPAN class=java-quote>"/account"</SPAN>
type=<SPAN class=java-quote>"onlyfun.caterpillar.AccountAction"</SPAN>
parameter=<SPAN class=java-quote>"method"</SPAN>
name=<SPAN class=java-quote>"userForm"</SPAN>>
<forward
name=<SPAN class=java-quote>"greeting"</SPAN>
path=<SPAN class=java-quote>"/login/greeting.jsp"</SPAN>/>
</action></PRE></DIV></DIV><BR> 主要就是在parameter的屬性上，我們指定依method請求參數來指定我們所要使用的方法，例如下面的網址將會執行AccountAction的login()方法：
<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/account.<SPAN class=java-keyword>do</SPAN>?method=login&name=caterpillar&password=1234</SPAN></PRE></DIV></DIV><BR> 注意在請求參數中，我們包括了method=login來指定執行login()方法，同樣的，如果您要執行logout()方法，則如下：
<DIV class=code
style="BORDER-TOP-STYLE: solid; BORDER-RIGHT-STYLE: solid; BORDER-LEFT-STYLE: solid; BORDER-BOTTOM-STYLE: solid">
<DIV class=codeContent><PRE>http:<SPAN class=java-comment>//localhost:8080/HelloStruts/account.<SPAN class=java-keyword>do</SPAN>?method=logout</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=607" dc:identifier="http://www.javaworld.com.tw/confluence/pages/viewpage.action?pageId=607" dc:title="入門 15 - 使用DispatchAction類別" trackback:ping="http://www.javaworld.com.tw/confluence/rpc/trackback/607"/></rdf:RDF>-->
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