获取ResultSet的列名集合

heads=new Vector();
ResultSetMetaData rsmd=rs.getMetaData();//rs为查询结果集
int count=rsmd.getColumnCount();
for(int i=1;i<=count;i++){
heads.add(rsmd.getColumnName(i));//把列名存入向量heads中
}

转载于:https://www.cnblogs.com/wpcnblog/archive/2011/06/09/2076266.html