0
我有低于这个函数从Oracle数据库拉数据的JavaBean的名称FanBean有困难从Oracle数据库中提取数据,JavaBean和JSP
public java.util.Vector getList() {
java.util.Vector myFanList = new java.util.Vector();
StringBuffer sql = new StringBuffer();
DbUtil db = null;
ResultSet rset = null;
db = new DbUtil();
sql.append(" SELECT id_no, name");
if ((this.getSelectedFanType() != null)&& (this.getSelectedFanType().equals("1"))){
sql.append(" from my_fan ");
}
if ((this.getSelectedFanType() != null)&& (this.getSelectedFanType().equals("2"))){
sql.append(" from my_fan ");
sql.append(" where id_no = '");
sql.append(this.getSearchVar());
sql.append("'");
}
if ((this.getSelectedFanType() != null)&& (this.getSelectedFanType().equals("3"))){
sql.append(" from my_fan ");
sql.append(" where name = '");
sql.append(this.getSearchVar());
sql.append("'");
}
if (this.getSelectedSort() != null) {
if(this.getSelectedSort().equals("1"))
sql.append(" ORDER BY id_no");
else if(this.getSelectedSort().equals("2"))
sql.append(" ORDER BY name");
else
sql.append(" ORDER BY id_no");
} else
sql.append(" ORDER BY id_no");
rset = db.executeQuery(sql.toString(),true);
if (rset != null) {
while(rset.next()) {
FanBean myFan = new FanBean();
myFan.setIdNo(rset.getString(1).trim());
myFan.setName(rset.getString(2));
myFanList.addElement(myFan);
Enumeration e = myFanList.elements();
while (e.hasMoreElements()) {
FanBean nextFan = (FanBean) e.nextElement();
this.addDtlItem(nextFan.getIdNo(), nextFan.getName());
}
}
}
}
return myFanList;
}
我有这个功能,增加了数据FanItemBean的java bean
public void addDtlItem(String idNo, String name)
{
FanItemBean detailItem = new FanItemBean(idNo, name);
_dtlListArray.add(detailItem);
}
最后在jsp中我拉了数据这样
<%
Collection dtlItems = fanBean.getDetailItems();
Iterator it = dtlItems.iterator();
int i = 0;
String colorStr = null;
while(it.hasNext()){
FanItemBean fanDtlItem = (FanItemBean) it.next();
%>
<TR>
<TD><%= fanDtlItem.getIdNo()%></TD>
<TD><%= fanDtlItem.getName()%></TD>
</TR>
<%
i++;
} %>
有人能告诉我在这个循环中我做错了什么,我没有在jsp页面中获取任何数据。谢谢
只是检查,但你确定你的JSP的作品?它看起来像在你的JSP脚本中,你正在为while循环缺少一个闭合的“}”(假设你直接从你的JSP中拷贝了这个,我确信这会导致一个问题)。 – brent777
哦对不起,我忘了添加它..我有.. – Jack
你在哪里添加bean到你的请求上下文?你使用servlet吗? – home