如何在JSP页面上取ARRAYLIST里面的值！

Question

代码如下！！  public ArrayList selectCourseBean(String userdep) //查询
    {
        ArrayList list = new ArrayList();
//        if (!checkParameter(userdep))
//        {
//            userdep = "";
//        }
        try
        {
            String sql = "select * from CHOOSECOURSE";
            prepar = conn.prepareStatement(sql);
            res = prepar.executeQuery(); //接收存储过程的结果集
            while (res.next()) //提取结果集的每条记录
            {
                CourseInforBean cb = new CourseInforBean();
                cb.setCourseID(res.getString("COURSEID"));
                cb.setCourseName(res.getString("COURSENAME"));
                cb.setTeacherID(res.getString("TEACHERID"));
                cb.setTeacherName(res.getString("TEACHERNAME"));
                cb.setCourseDepart(res.getString("DEPARTMENT"));
                list.add(cb);
            }
        }
        catch (SQLException ex)
        {
            ex.printStackTrace();
        }
        return list;    }谢谢！！！

Answer 1

Iterator it = list.iterator();for (; it.hasNext(); ){
    CourseInforBean cb = (CourseInforBean)it.next();
    //Test
    out.print(cb.getCourseID());
}

Answer 2

ArrayList list = Xobj.selectCourseBean(userdep);//Xobj为你这个方法所在类的对象
这样就取出来了

Answer 3

for ( int i = 0; i < _list.size(); i ++ ) {
    Channel channel = (_list.isEmpty())?null:(Channel)_list.get(i);
    if ( channel == null ) continue;
exceptFlag = chnDao.updChannel( channel );
if ( !exceptFlag ) {
             retList.add( "频道<b>["+channel.getChnName()+"]</b>更新失败" );
}
}

Answer 4

用一个遍历标签<logic:iterate>