从网页插入表单数据时获取ORA-01722：无效数字错误

Question

Im getting ORA-01722 error while inserting data from jsp form into the oracle database. i know that this error is pointing out to me that i am trying to insert a character string inside a number datatype but the problem is that everything looks to be fine to me but still im getting the error

here is the code i use.

roomregister.jsp

<%
String roomcategory=request.getParameter("category");
if(roomcategory==null)
{
    response.sendRedirect("categoryrooms.jsp");
    return;
}
//out.println(roomcategory);
%>
<script type="text/javascript" src="js/jquery-1.11.1.min.js"></script>
<script type="text/javascript">
    $(document).ready(
        function ()
{
    //getRoomsByCategory();
}
        );
    var roomcategory="<%=roomcategory%>";

   /* function f1()
    //{
      //  var nrooms=$("#hdmaxrooms").val()-1;
        //alert(nrooms);
    }*/
    function chooseRoom(roomno)
    {
        $("#txtroomno").val(roomno);
    }

    function roombook()
    {
        var gender="";
        if(document.getElementById("txtmale").checked)
            gender="Male";
          if(document.getElementById("txtfemale").checked)
            gender="Female";
        if(gender=="")
            {
                alert("Please select a gender");
                return ;
            }
        var receiptno=$("#txtreceiptno").val();
        var name=$("#txtname").val();
        var address=$("#txtaddress").val(); 
        var idproof=$("#txtidproof").val();
        var dob=$("#txtdob").val();
        var contact=$("#txtcontact").val();
        var roomno=$("#txtroomno").val();
        var fromdate=$("#txtfromdate").val();
        var todate=$("#txttodate").val();
        var roomcategory=$("#txtroomcategory").val();
        var noofguestname=$("#txtnoofguestname").val();
        var charge=$("#txtcharge").val();
        var purpose=$("#txtpurpose").val();

        var bookingamount=$("#txtbookingamount").val();


        var url="bookrooms.jsp?receiptno="+ receiptno + "&name=" + name + "&address=" + address + "&idproof=" + idproof + "&dob=" + dob + "&gender="+ gender + "&contact=" + contact + "&roomno="
        + roomno + "&fromdate=" + fromdate +"&todate="+ todate +  "&roomcategory=" + roomcategory + "&noofguestname=" + noofguestname +
        "&charge=" + charge + "&purpose=" + purpose + "&bookingamount=" + bookingamount;

          var xhr=new XMLHttpRequest();
                xhr.open("GET",url,true);
                xhr.onreadystatechange=function (){roomBookResponse(xhr);};
                xhr.send();
                //alert(url);

    }

      function roomBookResponse(xhr)
         {
             if(xhr.readyState!=4)
                 return ;
             //getRoomsByCategory();
             $("#diverrors").html(xhr.responseText);
            // alert("xZXZX" + xhr.responseText);
         }

         function getroom()
         {
            var fromdate =$("#txtfromdate").val();
            var todate =$("#txttodate").val();


            var url="roomsforbooking.jsp?fromdate="+ fromdate + "&todate=" + todate + "&category=" + roomcategory ;
                //alert(url);

          var xhr=new XMLHttpRequest();
                xhr.open("GET",url,true);
                xhr.onreadystatechange=function (){getRoomResponse(xhr);};
                xhr.send();
                //alert(url);

         }
          function getRoomResponse(xhr)
         {
             if(xhr.readyState!=4)
                 return ;
            // getRoomsByCategory();
             $("#diverrors").html(xhr.responseText);
            // alert("xZXZX" + xhr.responseText);
         }
</script>

<font color="white">

<div id="divroomsbycategory"></div>




<div id="image" class="image">

<center>
    <table  class="divcenter" width="60%" border="0">
        <tr><td colspan="2" align="center">ROOM BOOKING</td></tr>

         <tr><td colspan="2" align="center"> <div id="diverrors"></div> </td></tr>
         <tr><td><BR>Receipt_No</td><td><BR><input type="text" id="txtreceiptno"/></td></tr>
         <tr><td>Name</td><td><input type="text" id="txtname"/></td></tr>
         <tr><td>Address</td><td><input type="text" id="txtaddress"/></td></tr>
         <tr><td>Id_Proof</td><td><input type="text" id="txtidproof"/></td></tr>
         <tr><td>Date_of_Birth</td><td><input type="text" id="txtdob"/></td></tr>

         <tr><td>Gender</td><td>Male<input type="radio" id="txtmale" value="male" name="gender"/>
         Female<input type="radio" id="txtfemale" value="female" name="gender"/></td></tr>


         <tr><td>Contact</td><td><input type="text" id="txtcontact"/></td></tr>
         <tr><td> Room_No</td><td>
                 <input type="text" id="txtroomno" readonly="readonly"/>
                 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp&nbsp;&nbsp;&nbsp;
                 <input type="button" value="GET" onclick="getroom();" class="divbutton"/></td></tr>


         <tr><td>From_Date</td><td><input type="text" id="txtfromdate"/></td></tr>
         <tr><td>TO-date</td><td><input type="text" id="txttodate"/></td></tr>
         <tr><td>Room_Category</td><td><input type="text" id="txtroomcategory"  readonly="readonly"  value="<%=roomcategory%>"/></td></tr>
         <tr><td>No_Of_Guest</td><td><input type="text" id="txtnoofguestname"/></td></tr>
         <tr><td>Charge</td><td><input type="text" id="txtcharge"/></td></tr>
         <tr><td>Purpose</td><td><input type="text" id="txtpurpose"/></td></tr>



         <tr><td>Booking-Amount</td><td><input type="text" id="txtbookingamount"/></td></tr>



         <tr><td colspan="2" align="center"><BR><input type="button" value="SUBMIT" onclick="roombook();" class="divbutton"/></td></tr>
         <tr><td colspan="2" align="center"><div id="divroomsbycategory"></div></td></tr>
    </table>
</center>

</div>  
         </font>    
         <style>
            .divbutton:hover
            {
                border: solid white;
               background-color:  seagreen;
            }
            .divcenter:hover


            {
                 border: solid;
                border-top-color:  white;
                border-bottom-color:  white;
                border-left-color: white;
                border-right-color: white;


            }
            .image
            {
                width: 100%;
                height: 600px;
                background-image: url("images/332.jpg");
            }
        </style>

bookrooms.jsp

<%@page import="utilitiespackage.Date"%>
<%@page import="java.sql.Connection"%>
<%@page import="dbpackage.DBConnector"%>
<%@page import="java.sql.PreparedStatement"%>
<%@page import="validationspackage.Validations"%>

  <%
    try
    {
String receiptno=request.getParameter("receiptno");
String name=request.getParameter("name");
String address=request.getParameter("address");
String idproof=request.getParameter("idproof");
String dob=request.getParameter("dob");
String gender=request.getParameter("gender");
String contact=request.getParameter("contact");
String roomno=request.getParameter("roomno");
String fromdate=request.getParameter("fromdate");
String todate=request.getParameter("todate");
String roomcategory=request.getParameter("roomcategory");
String noofguestname=request.getParameter("noofguestname");
String charge=request.getParameter("charge");
String purpose=request.getParameter("purpose");

String bookingamount=request.getParameter("bookingamount");

 //Connection con=DBConnector.getConnection(session);

PreparedStatement ps=DBConnector.getPreparedStatement(session, "insert into roomregister values ( ?,?,?,?,?,?,?,?,?,?,?,?,?,?)");
ps.setString(1,receiptno);
ps.setString(2,name);
ps.setString(3,address);
ps.setString(4,idproof);
ps.setString(5,contact);
ps.setString(6,roomno);
ps.setString(7,fromdate);
ps.setString(8,roomcategory);
ps.setString(9,noofguestname);
ps.setString(10,charge);
ps.setString(11,purpose);
ps.setString(12,gender);
ps.setString(13,dob);
ps.setString(14,bookingamount);

Date d1=new Date(fromdate);
Date d2=new Date(todate);
for(;Date.compare(d1, d2)<0;d1.advance())
{
    ps.setString(6, "" + d1);
    ps.executeUpdate();
}




out.println(Validations.setSuccess("Booked"));

//String message=Validations.setSuccess("deleted");
//out.println(message);
    }
    catch(Exception ex)
    {
        System.out.println(ex);
        out.println(Validations.setError(ex));

    }
%>

my database table:

error that i am getting:

Answer 1

ps.setString(1,receiptno);

isn't that a "number" field and you are calling setString?

The documentation for java.sql.PreparedStatement has this to say:

Note: The setter methods (setShort, setString, and so on) for setting IN parameter values must specify types that are compatible with the defined SQL type of the input parameter. For instance, if the IN parameter has SQL type INTEGER, then the method setInt should be used.