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📄 利用javabean轻松实现对数据库的连接、查询以及增删改(范例).htm

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      <DIV align=center><B><FONT size=3>利用javabean轻松实现对数据库的连接、查询以及增删改!------使用范例 <BR><FONT size=2> 
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      color=#333300>以下给简单地给出了使用的范例,请参考:<BR><BR>&lt;%@&nbsp;page&nbsp;contentType="text/html"&nbsp;import="operate_db.*,java.sql.*"&nbsp;%&gt;<BR>&lt;jsp:useBean&nbsp;id="querybean"&nbsp;scope="request"&nbsp;class="operate_db.QueryBean"&nbsp;/&gt;<BR>&lt;%<BR>&nbsp;&nbsp;String&nbsp;prm1,prm2,prm3;<BR>&nbsp;&nbsp;ResultSet&nbsp;rst=null;<BR>&nbsp;&nbsp;prm1&nbsp;=&nbsp;...;<BR>&nbsp;&nbsp;prm2&nbsp;=&nbsp;...;<BR>&nbsp;&nbsp;prm3&nbsp;=&nbsp;...;<BR>&nbsp;&nbsp;querybean.setConnection("sun.jdbc.odbc.JdbcOdbcDriver","jdbc:odbc:数据源名","sa","");<BR>&nbsp;&nbsp;<BR>&nbsp;&nbsp;try{<BR><BR>&nbsp;&nbsp;&nbsp;&nbsp;String[]&nbsp;param&nbsp;=&nbsp;{prm1,prm2,prm3};<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;/*设置select语句*/<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;querybean.setQuerystatement("Select&nbsp;*&nbsp;from&nbsp;table&nbsp;where&nbsp;field1&nbsp;=&nbsp;?&nbsp;and&nbsp;field2=?&nbsp;and&nbsp;field3=?");<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;querybean.setParam(param);<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;rst=querybean.getResult();<BR>&nbsp;&nbsp;&nbsp;&nbsp;}catch(Exception&nbsp;e){System.out.println(e);&nbsp;&nbsp;}<BR><BR><BR>&nbsp;while&nbsp;(rst.next()){<BR><BR>%&gt;&lt;%=rst.getString(1)%&gt;<BR><BR>&lt;%}%&gt;<BR><BR>希望大家尊重作者的劳动,使用时保留作者信息以及版本信息等等,谢谢!<BR><BR><BR>我的信箱:lci21@263.net<BR>&nbsp;<BR><BR><BR></FONT></TD></TR>
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