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Я задавался вопросом, что случилось с моим кодом. Предполагалось, что JSP будет проверять все поле, будь то требуемое, формат текстового поля и т. Д., Прежде чем перейти к сервлету. Я использовал следующий код, чтобы проверить сам jsp перед тем, как перейти к сервлету. Однако это не работает, так как он не запускал мой код проверки функции jsp(), и он сразу попал в сервлет.JSP подтвердил себя первым, прежде чем переходить на сервлет
<form action="RegistrationServlet" method="post" enctype="multipart/form-data" onSubmit="return validation(event);">
Следующий код будет мой JSP:
<!DOCTYPE HTML><%@page language="java"
contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%>
<html>
<head>
<title>Registration</title>
<script>
function validation(){
var userid =document.getElementById("userID").value;
var firstName= document.getElementById("fName").value;
var lastName = document.getElementById("lName").value;
var phoneNo= document.getElementById("phoneNo").value;
var dateOfBirth=document.getElementById("dob").value;
var displayName= document.getElementById("dName").value;
var password = document.getElementById("password").value;
var address= document.getElementById("address").value;
var interest = document.getElementById("interest").value;
var emailAddress = document.getElementById("emailAddress").value;
//var profilePic=document.getElementById("profilePic").value;
var profilePiclbl=document.getElementById("lblProfilePic").innerHTML;
alert("cc");
alert(emailAddress);
//first check all whether is it empty
//check individual whether is it empty
//else forward to next page & create session
//check the format
// forward to next page & create session
//servlet check label is it empty if not send to confirmation page
if(firstName==""){
document.getElementById("lblfName").style.color = "red";
document.getElementById("lblfName").innerHTML="Please fill in your first name.";
alert("Please check your first name.");
return false;
}
else {
document.getElementById("lblfName").innerHTML="";
}
if(lastName==""){
document.getElementById("lbllName").style.color = "red";
document.getElementById("lbllName").innerHTML="Please fill in your last name.";
alert("Please check your last name.");
return false;
}
else {
document.getElementById("lbllName").innerHTML="";
}
if(displayName==""){
document.getElementById("lbldName").style.color = "red";
document.getElementById("lbldName").innerHTML="Please fill in your display name.";
alert("Please check your display name.");
return false;
}
else {
document.getElementById("lbldName").innerHTML="";
}
if($("#dob").datepicker("getDate") === null) {
document.getElementById("lblDOB").style.color = "red";
document.getElementById("lblDOB").innerHTML="Please fill in your date of birth.";
return false;
}
else {
document.getElementById("lblDOB").innerHTML="";
}
if(phoneNo==""){
document.getElementById("lblphoneNo").style.color = "red";
document.getElementById("lblphoneNo").innerHTML="Please fill in your phone number.";
alert("Please check your phone number.");
return false;
}
else {
document.getElementById("lblphoneNo").innerHTML="";
}
if(userid==""){document.getElementById("lblUserID").style.color = "red";
document.getElementById("lblUserID").innerHTML="Please fill in your user ID.";
alert("Please check your user ID.");
return false;
}
else {
document.getElementById("lblUserID").innerHTML="";
}
if(password==""){
document.getElementById("lblPassword").style.color = "red";
document.getElementById("lblPassword").innerHTML="Please fill in your password.";
alert("Please check your password.");
return false;
}
else {
document.getElementById("lblPassword").innerHTML="";
}
if(emailAddress==""){
document.getElementById("lblemailAddress").style.color = "red";
document.getElementById("lblemailAddress").innerHTML="Please fill in your email address.";
alert("Please check your email address.");
return false;
}
else {
document.getElementById("lblemailAddress").innerHTML="";
}
if(address==""){
document.getElementById("lblAddress").style.color = "red";
document.getElementById("lblAddress").innerHTML="Please fill in address.";
alert("Please check address.");
return false;
}
else {
document.getElementById("lblAddress").innerHTML="";
}
if(interest==""){
document.getElementById("lblInterest").style.color = "red";
document.getElementById("lblInterest").innerHTML="Please fill in your interest.";
alert("Please check your interest.");
return false;
}
else {
document.getElementById("lblInterest").innerHTML="";
}
if(firstName!="" || lastName!="" || userid!="" || phoneNo!="" || dateOfBirth!="" || displayName!="" || password!="" || address!=""|| interest!=""|| emailAddress!=""){
var letters = /^[A-Za-z]+$/;
var numbers = /^\d{8}$/;
var re = /^(([^<>()[\]\\.,;:\[email protected]\"]+(\.[^<>()[\]\\.,;:\[email protected]\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
if(!firstName.match(letters)|| !lastName.match(letters)){
if (!firstName.match(letters)){
document.getElementById("lblfName").style.color = "red";
document.getElementById("lblfName").innerHTML="Please check your spelling of your first name.";
return false;
}else{
document.getElementById("lblfName").innerHTML="";
}
if(!lastName.match(letters)){
document.getElementById("lbllName").style.color = "red";
document.getElementById("lbllName").innerHTML="Please check your spelling of your last name.";
return false;
}else{
document.getElementById("lbllName").innerHTML="";
}
}
//mid
else{
document.getElementById("lbllName").innerHTML="";
document.getElementById("lblfName").innerHTML="";
}
if(!phoneNo.match(numbers)){
document.getElementById("lblphoneNo").style.color = "red";
document.getElementById("lblphoneNo").innerHTML="Please check your phone number.";
return false;
}else {
document.getElementById("lblphoneNo").innerHTML="";
}
if (!emailAddress.match(re)) {
document.getElementById("lblemailAddress").style.color = "red";
document.getElementById("lblemailAddress").innerHTML="Please check your email address.";
return false;
}else{
document.getElementById("lblemailAddress").innerHTML="";
}
if (profilePiclbl!="") {
return false;
}else{
document.getElementById("lblProfilePic").innerHTML="";
return true;
}
// $("#passRegi").val("success");
//alert($("#passRegi").val());
}
} </script>
<form action="RegistrationServlet" method="post" enctype="multipart/form-data" onSubmit="return validation(event);">
Registration
<table>
<tr>
<td>First Name:</td>
<td> <input type="text" name="fName" id="fName"></td>
<td> <label for="lblfName" id="lblfName" ></label></td>
</tr>
<tr>
<td>Last Name :</td>
<td> <input type="text" name="lName" id="lName"></td>
<td> <label for="lblDOB" id="lbllName"></label></td>
</tr>
<tr>
<td>Display Name :</td>
<td> <input type="text" name="dName" id="dName"></td>
<td> <label for="lblDOB" id="lbldName"></label></td>
</tr>
<tr>
<td>Date Of Birth :</td>
<td> <input type="text" name="dob" id="dob"></td>
<td> <label for="lblDOB" id="lblDOB"></label></td>
</tr>
<tr>
<td>Phone Number:</td>
<td> <input type="text" name="phoneNo" id="phoneNo"></td>
<td> <label for="lblphoneNo" id="lblphoneNo"></label></td>
</tr>
<tr>
<td>Email Address:</td>
<td> <input type="text" name="emailAddress" id="emailAddress"></td>
<td><label for="lblemailAddress" id="lblemailAddress"><div style="color: #FF0000;">${errorMessage}</div></label></td>
</tr>
<tr>
<td>Password:</td>
<td> <input type="password" name="password" id="password" onkeyup="CheckPasswordStrength(this.value)"></td>
<td> <label for="lblPassword" id="lblPassword"></label></td>
<td><label for="password_strength" id="password_strength"></label></td>
</tr>
<tr>
<td>Address:</td>
<td> <input type="text" name="address" id="address"></td>
<td> <label for="lblAddress" id="lblAddress"></label></td>
</tr>
<tr>
<td>Profile Picture:</td>
<td> <input type="file" name="profilePic" id="profilePic" accept="image/*" onChange="previewFile()"></td>
<td> <label for="lblProfilePic" id="lblProfilePic"></label></td>
</tr>
<tr>
<td>Interest:</td>
<td> <input type="text" name="interest" id="interest"></td>
<td> <label for="lblInterest" id="lblInterest"></label></td>
</tr>
</table>
<input type="submit" value="Submit" onClick="validation();">
</form>
</body>
</html>
Ох, спасибо, я не заметил эту ошибку. – Qccccc