in9_db.htm

struts开发实例

/&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;html:submit value=&quot;</span><span style="font-family: 宋体">查找</span><span lang="EN-US">&quot; 
/&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;html:reset value=&quot;</span><span style="font-family: 宋体">重写</span><span lang="EN-US">&quot; 
/&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp; &lt;/html:form&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;html:form 
action=&quot;dblistAction.do?action=search&amp;expression=NULL&quot; method=&quot;post&quot;&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;html:submit value=&quot;</span><span style="font-family: 宋体">全部显示</span><span lang="EN-US">&quot; 
/&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp; &lt;/html:form&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;/body&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;/html:html&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;</span></p>
<p class="MsoNormal"><span lang="EN-US">dbListOut.jsp</span><span style="font-family: 宋体">文件：</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;%@ page 
contentType=&quot;text/html;charset=GB2312&quot; language=&quot;java&quot; %&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;%@ taglib 
uri=&quot;/WEB-INF/struts-bean.tld&quot; prefix=&quot;bean&quot; %&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;%@ taglib 
uri=&quot;/WEB-INF/struts-html.tld&quot; prefix=&quot;html&quot; %&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;%@ taglib 
uri=&quot;/WEB-INF/struts-logic.tld&quot; prefix=&quot;logic&quot; %&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;%@ taglib 
uri=&quot;/WEB-INF/struts-template.tld&quot; prefix=&quot;template&quot; %&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;html:html&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;head&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;title&gt;&lt;/title&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;html:base/&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;/head&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;body bgcolor=&quot;white&quot;&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;table width=&quot;98%&quot; border=&quot;1&quot; 
bgColor=&quot;#E6F2E7&quot; borderColorDark=&quot;#FFFFFF&quot; borderColorLight=&quot;#008000&quot; 
cellPadding=&quot;3&quot; cellSpacing=&quot;0&quot; &gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;tr bgcolor='#90C090'&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;td&gt;&lt;span CONTENTEDITABLE=true&gt;</span><span style="font-family: 宋体">序号</span><span lang="EN-US">&lt;/span&gt;&lt;/td&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;td&gt;&lt;span CONTENTEDITABLE=true&gt;</span><span style="font-family: 宋体">姓名</span><span lang="EN-US">&lt;/span&gt;&lt;/td&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;td&gt;&lt;span CONTENTEDITABLE=true&gt;</span><span style="font-family: 宋体">备注</span><span lang="EN-US">&lt;/span&gt;&lt;/td&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;/tr&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;logic:iterate name='dblist' id='dblist' 
type='emptyprj.dblist' scope='request'&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;logic:notEqual name='dblistForm' 
property='action' value='edit'&gt; </span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;tr&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;td&gt;&lt;bean:write name='dblist' property='</span><span style="font-family: 宋体">序号</span><span lang="EN-US">' 
/&gt;&lt;/td&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;td&gt;&lt;bean:write name='dblist' property='</span><span style="font-family: 宋体">姓名</span><span lang="EN-US">' 
/&gt;&lt;/td&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;td&gt;&lt;bean:write name='dblist' property='</span><span style="font-family: 宋体">备注</span><span lang="EN-US">' 
/&gt;&lt;/td&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;/tr&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;/logic:notEqual&gt; </span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;logic:equal name='dblistForm' 
property='action' value='edit'&gt; </span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;tr&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;form</span><span style="font-family: 宋体">　</span><span lang="EN-US">method='post' 
name='dblistForm' </span></p>
<p class="MsoNormal"><span lang="EN-US">
action=&quot;/DBApp/dblistAction.do?action=update&amp;search=search</span></p>
<p class="MsoNormal"><span lang="EN-US">&amp;expression=&lt;bean:write name='dblist' 
property='</span><span style="font-family: 宋体">序号</span><span lang="EN-US">' 
/&gt;&quot;&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;td&gt;&lt;html:text name='dblist' property='</span><span style="font-family: 宋体">序号</span><span lang="EN-US">' 
/&gt;&lt;/td&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;td&gt;&lt;html:text name='dblist' property='</span><span style="font-family: 宋体">姓名</span><span lang="EN-US">' 
/&gt;&lt;/td&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;td&gt;&lt;html:text name='dblist' property='</span><span style="font-family: 宋体">备注</span><span lang="EN-US">' 
/&gt;&lt;/td&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;/tr&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;/logic:equal&gt; </span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;/logic:iterate&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;tr&gt;&lt;td&nbsp; align=middle colSpan=4 
&gt;&lt;/td&gt;&lt;/tr&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;/tr&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;/table&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;/body&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&lt;/html:html&gt;</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;</span></p>
<p class="MsoNormal"><span lang="EN-US">dbList.java</span><span style="font-family: 宋体">文件：</span></p>
<p class="MsoNormal"><span style="font-family: 宋体">这样定义一个用于保存数据表数据的</span><span lang="EN-US">Bean</span><span style="font-family: 宋体">，它的变量与数据库表的字段完全对应，也就是与数据库应用文件向导中的</span><span lang="EN-US">SQL</span><span style="font-family: 宋体">语句要查找的字段完全对应。</span></p>
<p class="MsoNormal"><span lang="EN-US">package&nbsp; emptyprj;</span></p>
<p class="MsoNormal"><span lang="EN-US">import 
org.apache.struts.action.ActionForm;</span></p>
<p class="MsoNormal"><span lang="EN-US">public final class dbList extends 
ActionForm&nbsp; </span></p>
<p class="MsoNormal"><span lang="EN-US">{</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; private String&nbsp; </span>
<span style="font-family: 宋体">备注</span><span lang="EN-US">;</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; private String&nbsp; </span>
<span style="font-family: 宋体">姓名</span><span lang="EN-US">;</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; private int&nbsp; </span>
<span style="font-family: 宋体">序号</span><span lang="EN-US">;</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; public int get</span><span style="font-family: 宋体">序号</span><span lang="EN-US">()</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return (this.</span><span style="font-family: 宋体">序号</span><span lang="EN-US">);</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; public void set</span><span style="font-family: 宋体">序号</span><span lang="EN-US">(int
</span><span style="font-family: 宋体">序号</span><span lang="EN-US">)</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; this.</span><span style="font-family: 宋体">序号</span><span lang="EN-US">=</span><span style="font-family: 宋体">序号</span><span lang="EN-US">;</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; public String get</span><span style="font-family: 宋体">姓名</span><span lang="EN-US">()</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return (this.</span><span style="font-family: 宋体">姓名</span><span lang="EN-US">);</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; public void set</span><span style="font-family: 宋体">姓名</span><span lang="EN-US">(String
</span><span style="font-family: 宋体">姓名</span><span lang="EN-US">)</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; this.</span><span style="font-family: 宋体">姓名</span><span lang="EN-US">=</span><span style="font-family: 宋体">姓名</span><span lang="EN-US">;</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; public String get</span><span style="font-family: 宋体">备注</span><span lang="EN-US">()</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return (this.</span><span style="font-family: 宋体">备注</span><span lang="EN-US">);</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; public void set</span><span style="font-family: 宋体">备注</span><span lang="EN-US">(String
</span><span style="font-family: 宋体">备注</span><span lang="EN-US">)</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; this.</span><span style="font-family: 宋体">备注</span><span lang="EN-US">=</span><span style="font-family: 宋体">备注</span><span lang="EN-US">;</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }</span></p>
<p class="MsoNormal"><span lang="EN-US">}</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;</span></p>
<p class="MsoNormal"><span lang="EN-US">dbListDAO.java</span><span style="font-family: 宋体">文件：</span></p>
<p class="MsoNormal"><span style="font-family: 宋体">　　这里定义一个</span><span lang="EN-US">DAO</span><span style="font-family: 宋体">类，用于实现数据加的查找、删除、更新、添加及生成分页字符串等功能。</span></p>
<p class="MsoNormal"><span lang="EN-US">package&nbsp; emptyprj;</span></p>
<p class="MsoNormal"><span lang="EN-US">import emptyprj.dbList;</span></p>
<p class="MsoNormal"><span lang="EN-US">import java.sql.Connection;</span></p>
<p class="MsoNormal"><span lang="EN-US">import java.sql.PreparedStatement;</span></p>
<p class="MsoNormal"><span lang="EN-US">import java.sql.ResultSet;</span></p>
<p class="MsoNormal"><span lang="EN-US">import java.sql.SQLException;</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;</span></p>
<p class="MsoNormal"><span lang="EN-US">import java.util.Collection;</span></p>
<p class="MsoNormal"><span lang="EN-US">import java.util.ArrayList;</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;</span></p>
<p class="MsoNormal"><span lang="EN-US">public class dbListDAO {</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp; private Connection con;</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp; private int rowCount;</span></p>