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tomcat+struts 2.0
jsp Ò³ÃæÖ±½Ó¹ØÁªmodel
ÏÖÔÚÐèÒª¸ù¾Ýmodel(admin)ÀïÃæµÄÒ»¸öitem(id),ÅжÏjspÒ³Ãæ³öÏÖµÄÄÚÈÝ.
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...
<table>
<tr>
<td>

<s:if admin.id is null> ---Õâ¸öµØ·½²»ÖªµÀÔõôд , admin.idÊÇStringÀàÐÍ
<s:text name="admin.name"></s:text>
</s:if>
<s:else>
<s:text name="admin.title"></s:text>
</s:else>

</td>
</tr>
</table>
...
<s:if test="#admin.name == null">


4. <s:if test="#request.admin.id == null"> 


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1. <s:if test="admin.id == null"> 

2. <s:if test="%{admin.id == null}"> 

3. <s:if test="%{#request.admin.id == null}"> 

4. <s:if test="#request.admin.id == null"> 
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Java code:

1. <s:if test="admin.id == null">

2. <s:if test="%{admin.id == null}">

3. <s:if test="%{#request.admin.id == null}">

4. <s:if test="#request.admin.id == null">




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import java.sql.Statement;
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private static final String URL = "jdbc:oracle:thin:@localhost:1521:orcl";
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private static final String PASSWORD = "s ......

¹ØÓÚjsp ÒýÈëºóÒ³ÃæÌø×ªµÄÎÊÌâ - Java / Java EE

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jspÒ³ÃæÖÐ×ÖÌå±äÉ«ÎÊÌâ - Java / Web ¿ª·¢

<html><head><title>[@title]</title>
<meta http-equiv=Content-Type content="text/html; charset=gb2312">
<script language='javascript'>
function diyCheck ......
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