jdbc获取表中列名

   1. pment = conn.prepareStatement("select * from A0001 where 1 = 2");     2. rs = pment.executeQuery();     3. ResultSetMetaData metaData = rs.getMetaData();     4. int colum = metaData.getColumnCount();     5. for (int i = 1; i <= colum; i++)     6.     {     7.      String typeStr = ""; //类型     8.      //获取列名     9.      String columName = metaData.getColumnName(i);    10.      //获取每一列的数据类型    11.      int type = metaData.getColumnType(i);    12.      //判断    13.      if(Types.INTEGER == type)    14.      {    15.       typeStr = "Integer";    16.      }    17.      else if(Types.VARCHAR == type)    18.      {    19.       typeStr = "String";    20.      }    21. }