Java数据库操作示例处理查询结果集

尝试 { String strCon = "jdbc:odbc:MyODBC"; System.out.println("正在连接数据库..."); Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); Connection con; con = DriverManager.getConnection(strCon, "sa", ""); System.out.println("成功连接到数据库。"); Statement sta = con.createStatement(); ResultSet rs = sta.executeQuery("SELECT * FROM Friends"); System.out.println("查询到数据如下："); while (rs.next()) { //循环将结果集游标往下移动，到达末尾返回false //根据字段名称获得各个字段的值System.out.print(rs.getString("Name") + "\t"); //获得字符串System.out.print(rs.getString("Address") + "\t"); //获得字符串System.out.print(rs.getInt("Telephone") + "\t"); //获得整数System.out.print(rs.getDate("HireDate") + "\t"); //获得日期型数据System.out.println(rs.getFloat("Salary")); //获得浮点型数据} rs.close(); sta.close(); con.close(); } catch (ClassNotFoundException cnfe) { cnfe.printStackTrace(); } catch (SQLException sqle