java读取access2013报错

2024-11-20 11:01:35
推荐回答(2个)
回答1:

你看看控制台里报什么错误,打断点进行测试看看是你的数据问题还是配置或代码问题,创建个testcase测试类。。测试。不要用test测试,给你个例子java 连接 Access 数据库 步骤: 1.打开 ACCESS 创建一个 数据库 选择路径 E:数据库名称 Access1.mdb * 2.在该数据库内创建一个表 emp 插入一条数据 3.打开控制面版--控制工具--数据源(ODBJ) 分别在 用户DSN 和 系统DSN 内添加 * 一个用户名称 msn 添加步骤: - 点击添加 选择 Driver do Microsoft Access (*.mdb) - 点 完成 * 弹出对话框 在数据库源框内 输入 msn - 数据库项 选择 地址 E:Access1.mdb - 确定 (两个步骤一样) * ---------OK------------ */ private String url = "jdbc:odbc:msn";// 打开数据库源 private String str = "sun.jdbc.odbc.JdbcOdbcDriver"; private Connection conn; private Statement sta; private ResultSet res; public DAO() { try { Class.forName(str); conn = DriverManager.getConnection(url); sta = conn.createStatement(); System.out.println("数据库连接成功"); } catch (ClassNotFoundException e) { System.out.println("缺少架包支持"); e.printStackTrace(); } catch (SQLException e) { System.out.println("连接错误 检查用户名密码 或 url 以及数据库是否存在"); e.printStackTrace(); } } public void close() { try { if (res != null) { res.close(); } if (sta != null) { sta.close(); } if (conn != null) { conn.close(); } } catch (SQLException e) { System.out.println("sql不能执行"); e.printStackTrace(); } } public ResultSet querry(String sql) { try { res = sta.executeQuery(sql); } catch (SQLException e) { System.out.println("sql不能执行"); System.out.println(sql); e.printStackTrace(); } return res; } public int update(String sql) { int flag = -1; try { flag = sta.executeUpdate(sql); } catch (SQLException e) { System.out.println("以下sql不能执行"); System.out.println(sql); e.printStackTrace(); } return flag; } private Connection getConn() { return conn; } public static void main(String[] args) { DAO d = new DAO(); String sql = "select * from emp as t "; ResultSet res = d.querry(sql); try { while (res.next()) { System.out.println(res.getString(1)); } } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); } /* * try{ * * String strURL ="jdbc:odbc:msn";myds在ODBC中建的一个用户DSN * Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); Connection * connAcce=DriverManager.getConnection(strURL); Statement * stmt=connAcce.createStatement(); * * ResultSet rs=stmt.executeQuery("SELECT * FROM emp"); * * while(rs.next()){ * * System.out.println(rs.getString(2)); } * * * stmt.close(); connAcce.close(); } catch(Exception ex){ * ex.printStackTrace(); } } */ }}

回答2:

你使用的是什么jdbc驱动,jodbc驱动?看看是不是url配置错误了。

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