遍历ResultSet结果集

public static void main(String argv[]){
		Connection conn=null;
		conn=connect();
		try {
			Statement statement = conn.createStatement();
			String sql = "select * from user";
			ResultSet rs = statement.executeQuery(sql);
			while(rs.next()){
				for(int i=0;i<rs.getMetaData().getColumnCount();i++){
					System.out.print(rs.getObject(i+1));
					System.out.print("\t");
				}
				System.out.println("");
			}
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

ResultSet的getMetaData()之后的getColumnCount()方法能够得到当前一条记录集的长度