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📁 精通struts源码,孙卫琴.经过更新后的,请查收,
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<title>新时代软件教程:操作系统 主页制作 服务器 设计软件 网络技术 编程语言 文字编辑</title>
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<p align="center"><big><strong>一个连接数据库的bean</strong></big></p>
<div align="right">---摘自互联网</div>

<br>//&nbsp; substitute&nbsp; your&nbsp; own&nbsp; class&nbsp; path<br>
package&nbsp; com.jspcafe.beans;<br>
<br>
//&nbsp; standard&nbsp; classes&nbsp; to&nbsp; import&nbsp; when&nbsp; using&nbsp; jdbc<br>
import&nbsp; java.sql.*;<br>
import&nbsp; java.io.*;<br>
<br>
public&nbsp; class&nbsp; OdbcBean&nbsp; {<br>
<br>
//&nbsp; db&nbsp; is&nbsp; our&nbsp; connection&nbsp; object<br>
Connection&nbsp; db&nbsp; =&nbsp; null;<br>
<br>
//&nbsp; stmt&nbsp; will&nbsp; hold&nbsp; our&nbsp; jdbc&nbsp; statements<br>
//&nbsp; i.e.&nbsp; sql&nbsp; and&nbsp; stored&nbsp; procedures<br>
Statement&nbsp; stmt&nbsp; =&nbsp; null;<br>
<br>
//&nbsp; result&nbsp; will&nbsp; hold&nbsp; the&nbsp; recordset<br>
ResultSet&nbsp; result&nbsp; =&nbsp; null;<br>
<br>
//&nbsp; default&nbsp; constructor<br>
public&nbsp; OdbcBean()&nbsp; {<br>
}<br>
<br>
/*********************************************<br>
*&nbsp; @dsn&nbsp; String&nbsp; for&nbsp; ODBC&nbsp; Datasource&nbsp; name<br>
*&nbsp; @uid&nbsp; String&nbsp; for&nbsp; ODBC&nbsp; Datasource&nbsp; user&nbsp; name<br>
*&nbsp; @pwn&nbsp; String&nbsp; for&nbsp; ODBC&nbsp; Datasource&nbsp; password<br>
*/<br>
public&nbsp; void&nbsp; OpenConn(<br>
String&nbsp; dsn,&nbsp; <br>
String&nbsp; uid,&nbsp; <br>
String&nbsp; pwd)&nbsp; throws&nbsp; Exception&nbsp; {<br>
<br>
try&nbsp; {<br>
dsn&nbsp; =&nbsp; "jdbc:odbc:"&nbsp; +&nbsp; dsn;<br>
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");<br>
db&nbsp; =&nbsp; DriverManager.getConnection(dsn,&nbsp; uid,&nbsp; pwd);<br>
}&nbsp; catch&nbsp; (Exception&nbsp; e)&nbsp; {<br>
e.printStackTrace();<br>
}<br>
}<br>
<br>
<br>
/*********************************************<br>
*&nbsp; @sproc&nbsp; String&nbsp; for&nbsp; sql&nbsp; statement&nbsp; or&nbsp; stored<br>
*&nbsp; procedure<br>
*/<br>
public&nbsp; ResultSet&nbsp; getResults(String&nbsp; sproc)&nbsp; <br>
throws&nbsp; Exception&nbsp; {<br>
<br>
stmt&nbsp; =&nbsp; db.createStatement();<br>
result&nbsp; =&nbsp; stmt.executeQuery(sproc);<br>
return&nbsp; result;<br>
}<br>
<br>
/*********************************************<br>
*&nbsp; @sproc&nbsp; String&nbsp; for&nbsp; sql&nbsp; statement&nbsp; or&nbsp; stored<br>
*&nbsp; procedure<br>
*/<br>
public&nbsp; void&nbsp; execute(String&nbsp; sproc)&nbsp; <br>
throws&nbsp; Exception&nbsp; {<br>
<br>
stmt&nbsp; =&nbsp; db.createStatement();<br>
stmt.execute(sproc);<br>
}<br>
<br>
//&nbsp; Don't&nbsp; forget&nbsp; to&nbsp; clean&nbsp; up!<br>
public&nbsp; void&nbsp; CloseStmt()&nbsp; <br>
throws&nbsp; Exception&nbsp; {<br>
<br>
stmt.close();<br>
stmt&nbsp; =&nbsp; null;<br>
}<br>
<br>
//&nbsp; Don't&nbsp; forget&nbsp; to&nbsp; clean&nbsp; up!<br>
public&nbsp; void&nbsp; CloseConn()&nbsp; <br>
throws&nbsp; Exception&nbsp; {<br>
<br>
db.close();<br>
db&nbsp; =&nbsp; null;<br>
}<br>
<br>
}

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