獲取database所有table名：

（參考：http://stackoverflow.com/questions/2780284/how-to-get-all-table-names-from-a-database ）

DatabaseMetaData md = conn.getMetaData();
ResultSet rs = md.getTables(null, null, "%", null);
while (rs.next()) {
  　　System.out.println(rs.getString(3));
}

獲取某table的所有欄位名：  

(參考：http://java.dzone.com/snippets/listing-schematablecolumn )

DatabaseMetaData meta = conn.getMetaData();
ResultSet resultSet = meta.getColumns(databaseName, null, tableName, "%");
while (resultSet.next()) {
    System.out.println(esultSet.getString(4));
}