Vector Vheard = new Vector();
Vector Vrow = new Vector(); rs = DB.getInstance().sm.executeQuery(ls_sql);
if (rs== null) return;
ResultSetMetaData rsmd = rs.getMetaData();
if (rsmd == null) return;
int colLen = rsmd.getColumnCount();
int rowLen = rs.getRow();
if (colLen < 1) return;
for (int i=1;i<=colLen;i++){
//model.addColumn(rsmd.getColumnName(i));
Vheard.addElement(rsmd.getColumnName(i));
}
int count = 1;
while (rs.next()){
Vector v = new Vector();
for (int m=1;m<=colLen;m++){
v.addElement(rs.getObject(m));
}
Vrow.addAll(v);
setStatusText("记录数:"+String.valueOf(count));
count++;
}
//model = new DefaultTableModel(Vrow,Vheard);
try{
lchildframe.JTB_table = new JTable(Vrow,Vheard);
}catch(ClassCastException e){
e.printStackTrace();
return;
}
//-----------------------------------------------
JTB_table = new JTable(Vrow,Vheard)出错了,请大侠帮忙。
java.lang.ClassCastException
at javax.swing.table.DefaultTableModel.justifyRows(Unknown Source)
at javax.swing.table.DefaultTableModel.setDataVector(Unknown Source)
at javax.swing.table.DefaultTableModel.<init>(Unknown Source)
at javax.swing.JTable.<init>(Unknown Source)
Vector Vrow = new Vector(); rs = DB.getInstance().sm.executeQuery(ls_sql);
if (rs== null) return;
ResultSetMetaData rsmd = rs.getMetaData();
if (rsmd == null) return;
int colLen = rsmd.getColumnCount();
int rowLen = rs.getRow();
if (colLen < 1) return;
for (int i=1;i<=colLen;i++){
//model.addColumn(rsmd.getColumnName(i));
Vheard.addElement(rsmd.getColumnName(i));
}
int count = 1;
while (rs.next()){
Vector v = new Vector();
for (int m=1;m<=colLen;m++){
v.addElement(rs.getObject(m));
}
Vrow.addAll(v);
setStatusText("记录数:"+String.valueOf(count));
count++;
}
//model = new DefaultTableModel(Vrow,Vheard);
try{
lchildframe.JTB_table = new JTable(Vrow,Vheard);
}catch(ClassCastException e){
e.printStackTrace();
return;
}
//-----------------------------------------------
JTB_table = new JTable(Vrow,Vheard)出错了,请大侠帮忙。
java.lang.ClassCastException
at javax.swing.table.DefaultTableModel.justifyRows(Unknown Source)
at javax.swing.table.DefaultTableModel.setDataVector(Unknown Source)
at javax.swing.table.DefaultTableModel.<init>(Unknown Source)
at javax.swing.JTable.<init>(Unknown Source)
这里错误,应该是Vrow.add(v);
JTable的Vector rowData应该是里面的元素都是Vector()
int w = lchildframe.JTB_table.getRowCount()
调试时它们都有数据值,我在数据库里执行了这SQL,记录条数都是对的。就是显示不出来。