public class HtmlTag extends SimpleTagSupport{  
    private JdbcUtil jUtil = new JdbcUtil();  
      
    private String table;    
    private String value;    
    private String label;   
    public void setTable(String table) {  
        this.table = table;  
    }  
    public void setValue(String value) {  
        this.value = value;  
    }  
    public void setLabel(String label) {  
        this.label = label;  
    }  
      
    @Override  
    public void doTag() throws JspException, IOException {  
        // TODO Auto-generated method stub   
        String sql = "select * from "+table;  
        ResultSet rs = jUtil.gerSet(sql);  
        JspWriter out = getJspContext().getOut();  
        out.print("<select name="+table+">");  
        out.print("<option value=-1>--请选择--</option>");  
           try {  
            while (rs != null && rs.next()) {  
                String v = rs.getString(value);  
                String l = rs.getString(label);  
                out.print("<option value=" + v + ">" + l + "</option>");  
            }  
        } catch (SQLException e) {  
            // TODO Auto-generated catch block   
            e.printStackTrace();  
        }  
        out.print("</select>");  
        super.doTag();  
    }  
}