我的JSP页面：
<body>
<form action="Ser" method="post">
<table border="0" align="center" cellpadding="3" cellspacing="1" bgcolor="#006000">
<tr bgcolor="#F8FFF7">
<td colspan="2" bgcolor="#F8FFF7"><div align="center"><font size="4" color="#1D5C92">
<input name="button222" type="submit" value=" 修改 ">
</font> <font size="4" color="#1D5C92">
<input name="button24" type="button" value=" 返回 ">
</font></div>
<tr bgcolor="#F6F6F6">
<td width="78" nowrap bgcolor="#F8FFF7" class="td2">输入账号：</td>
<td width="232" bgcolor="#F8FFF7"><input type="password" name="id"></td>
</tr>
<tr bgcolor="#F6F6F6">
<td width="78" nowrap bgcolor="#F8FFF7" class="td2">输入原密码：</td>
<td width="232" bgcolor="#F8FFF7"><input type="password" name="yuan"></td>
</tr>
<tr bgcolor="#F6F6F6">
<td nowrap bgcolor="#F8FFF7" class="td2">输入新密码：</td>
<td bgcolor="#F8FFF7"><input type="password" name="xin"></td>
</tr>
<tr bgcolor="#F6F6F6">
<td nowrap bgcolor="#F8FFF7" class="td2">确认新密码：</td>
<td bgcolor="#F8FFF7"><input type="password" name="que"></td>
</tr>
<tr>
<td align="center"><input type="submit" name="xiugai" value="修改"/></td>
<td align="center"><input type="button" name="fanhui" value="返回"/></td>
</tr>
</table>
</form>
</body>
我的数据连接类：
public class DBunit {
private Connection con;
public Connection getConn()
{ try{Class.forName("com.mysql.jdbc.Driver");
}
catch(ClassNotFoundException e){
System.out.print("加载驱动器有错误");
}
try{con=DriverManager.getConnection("jdbc:mysql://localhost/hr","gxp","gxp");
}
catch(SQLException el){
System.out.println("数据库连接有错误");
}
return con;
}
public void setConn(Connection con){
this.con = con;
}
}
我的密码修改处理类：
public class Password {
public String getString(String s) {
if(s==null)
{ s= "";}
return s;}
public void pass(HttpServletRequest request)
throws SQLException, IOException, ServletException {
// TODO Auto-generated method stub
String id=request.getParameter("id");
id=getString(id);
String yuan=request.getParameter("yuan");
yuan=getString(yuan);
String xin=request.getParameter("xin");
xin=getString(xin);
String que=request.getParameter("que");
que=getString(que);
DBunit db=new DBunit();
db.getConn();