Question

我正在尝试执行此代码＆amp;它显示成功执行但我无法获得我创建的任何值访问数据库文件。所以，请在我的代码中找到错误，以便我可以在数据库表中获得一些值。

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String filename ="D:\\Database for Mini Project\\Database21(example).mdb";
String database = "jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)};DBQ=D:\\Database for Mini Project\\Database21(example).mdb";
        try (Connection con = DriverManager.getConnection( database ,"","")) {
            Statement s = con.createStatement();
            String b=request.getParameter("uname");

            String c=request.getParameter("pass");
            String query="insert into A.ABC1(uname,pass) values='"+b+"','"+c+"'";

            s.executeQuery(query);
            s.close();

Answer 1

将s.executeQuery(query);更改为s.executeUpdate(query);

对于数据操作语言，请使用oracle docs

中提到的executeQuery();

Answer 2

试试这个

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String filename ="D:\\Database for Mini Project\\Database21(example).mdb";
String database = "jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)};DBQ=D:\\Database for Mini Project\\Database21(example).mdb";
        String b=request.getParameter("uname");
        String c=request.getParameter("pass");
              try {
            // connects to the database
           Connection con = DriverManager.getConnection( database ,"","")) {
        Statement s = con.createStatement();
             String query="insert into A.ABC1(uname,pass) values(?,?);
            PreparedStatement statement = conn.prepareStatement(query);

            s.setString(1, b);
            s.setString(2, c);

            int row = s.executeUpdate();
            if (row > 0) {
                message = "Query executed";
            }
        } catch (SQLException ex) { //catch ur msaccess exception..I use mysql
            message = "ERROR: " + ex.getMessage();
            ex.printStackTrace();
        } finally {
            if (con != null) {
                // closes the database connection
                try {
                    con.close();
                } catch (SQLException ex) {
                    ex.printStackTrace();
                }
            }

我使用mysql作为我的数据库..所以只要有catch（SQLException ex）将其替换为msaccess异常..

将MS Access数据库与我的项目连接

2 个答案: