您好我是JSP编程的新手。我已经完成了创建个人贷款申请表的任务。当用户输入表单中的所有详细信息并点击提交时，表单将存储在数据库中。我已经创建了表单和所有必需的JSP页面和连接语句。我的问题是，当我给出值并点击提交时，没有任何反应。它停留在同一页面。我不知道问题出在哪里。请帮帮我。提前谢谢。
Application form.jsp
<%@ page language="java" import="java.util.Random"%>
<%!
public int generateRandomNumber(int start, int end ){
Random random = new Random();
long fraction = (long) ((end - start + 1 ) * random.nextDouble());
return ((int)(fraction + start));
}
%>
<!DOCTYPE html>
<html lang="en">
<head>
<script type="text/javascript">
function changeContents(){
var dropDown = document.getElementById("employmenttype");
var showDetails = document.getElementById("salariedType");
showDetails.style.display = dropDown.value == "salaried" ? "block" : "none";
var elements = document.getElementById("employmenttype");
var businessDetails = document.getElementById("selfEmployedType");
businessDetails.style.display = elements.value == "self_employed_business" ? "block" : "none";
}
</script>
<title>Bank</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="css/bootstrap.css">
<script src="js/jquery.js"></script>
<script src="js/bootstrap.js"></script>
</head>
<body>
<div class="container">
<div class="jumbotron">
<h1>Welcome to Bank</h1>
<p></p>
</div>
<form action="personalloanhandler.jsp" method="POST">
<div class="row">
<div class="col-md-3">
Your Application ID: <input type="text" name="app_id" value="<%=generateRandomNumber(10000,99999)%>" />
</div>
<div class="col-md-6">
</div>
<div class="col-md-5">
Full Name:*
<input class="form-control" name="fullname" type="text" />
<br><br>
Mobile No.:*
<input name="mobilenumber" class="form-control" type="text" pattern="[7-9]{1}[0-9]{9}" title="ex:9870367035"required />
<br><br>
Email_ID:*<input name="email" class="form-control" type="email" title="ex:hari21@gmail.com" required />
<br><br>
Pancard NO:*<input name="pan" class="form-control" type="text" pattern="[A-Za-z]{5}\d{4}[A-Za-z]{1}" title="ex:AIAPY3476G" required />
<br><br>
Gender: <input class="form-control"
name="gender" type="radio">Male
<input class="form-control"name="gender" type="radio">Female
<br><br>
Date OF Birth (DD/MM/YYYY):<input class="form-control" type="date" name="seldob" required>
<br><br>
Age*<input class="form-control"name="age" type="text" required />
<br><br>
Address* <textarea class="form-control" name="address" rows="2" cols="20" required>
</textarea>
<br><br>
City*<input class="form-control" name="city" id="focusedInput" type="text" required />
<br><br>
State*
<select name="state" onchange ="showText(this.value)">
<option value="">Select</option>
<option value='Andamans and Nicobar' >Andamans and Nicobar</option><option value='Andhra Pradesh' >Andhra Pradesh</option><option value='Arunachal Pradesh' >Arunachal Pradesh</option><option value='Assam' >Assam</option><option value='Bihar' >Bihar</option><option value='Chandigarh (UT)' >Chandigarh (UT)</option><option value='Chhattisgarh' >Chhattisgarh</option><option value='Dadra and Nagar Haveli' >Dadra and Nagar Haveli</option><option value='Daman Dui' >Daman Dui</option><option value='Delhi' >Delhi</option><option value='Goa' >Goa</option><option value='Gujarat' >Gujarat</option><option value='Habra' >Habra</option><option value='Haryana' >Haryana</option><option value='Himachal Pradesh' >Himachal Pradesh</option><option value='Jammu and Kashmir' >Jammu and Kashmir</option><option value='Jharkhand' >Jharkhand</option><option value='Karnataka' >Karnataka</option><option value='Kerala' >Kerala</option><option value='Madhya Pradesh' >Madhya Pradesh</option><option value='Maharashtra' >Maharashtra</option><option value='Manipur' >Manipur</option><option value='Meghalaya' >Meghalaya</option><option value='Mizoram' >Mizoram</option><option value='Nagaland' >Nagaland</option><option value='Odisha' >Odisha</option><option value='Puducherry' >Puducherry</option><option value='Punjab' >Punjab</option><option value='Rajasthan' >Rajasthan</option><option value='Sikkim' >Sikkim</option><option value='Tamil Nadu' >Tamil Nadu</option><option value='Telangana' >Telangana</option><option value='Tripura' >Tripura</option><option value='Uae' >Uae</option><option value='Uttar Pradesh' >Uttar Pradesh</option><option value='Uttarakhand' >Uttarakhand</option><option value='West Bengal' >West Bengal</option>
</select>
Pincode* <input class="form-control" id="focusedInput" type="text" required />
<br><br>
Type of employment*
<select name="employmenttype" id="employmenttype"
class="employer-info" onchange="changeContents()">
<option value="">Select</option>
<option value="salaried" id="salaried" >Salaried</option>
<option value="self_employed_business" id="self_employed_business">Self Employed business</option>
</select><br/></div>
<div id="salariedType" class="employer-info" style="display:none;">
<br/>Retirement age:*<input class="employer-info" name="retirementage"
id="focusedInput" type="text" required />
<br><br>
Date of joining:*<input class="employer-info" name="doj"
id="focusedInput" type="text" required />
<br><br>
Experience:<select class="form-control" name="workexperience">
<option value="select">Select</option>
<option value="0"> <1 </option>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
<option value="8">8</option>
<option value="9">9</option>
<option value="10">10</option>
<option value="11">>10</option>
</select>
<br><br>
</div>
<br><br>
<div id = "self_employed_business" style="display:none">
TIN no:*<input class="form-control" name="tin" id="focusedInput" type="text" required /><br/>
<br><br>
Net profit (annually):*<input class="form-control" name="profit" id="focusedInput" type="text" required /><br/><br/>
</div>
<div class="form-control" id="salariedType1" style="display:none;">
<br/>Employer name:*
<select name="employer_name" id="focusedInput"
class="employer-info">
<option value="">Select</option>
<option value="IBM" >IBM</option>
<option value="Fujitsu" >Fujitsu</option>
<option value="CSC" >CSC</option>
<option value="Accenture" >Accenture</option>
<option value="Northrop Grumman" >Northrop Grumman</option>
<option value="Hitachi" >Hitachi</option>
<option value="Capgemini" >Capgemini</option>
<option value="NTT Data Corporation" >NTT Data Corporation</option>
<option value="NEC" >NEC</option>
<option value="Ericsson" >Ericsson</option>
<option value="BT Global Services" >BT Global Services</option>
<option value="Atos Origin" >Atos Origin</option>
<option value="T-Systems" >T-Systems</option>
<option value="Siemens" >Siemens</option>
<option value="Lockheed Martin" >Lockheed Martin</option>
<option value="Nokia Siemens Networks" >Nokia Siemens Networks</option>
<option value="SAIC" >SAIC</option>
<option value="Microsoft" >Microsoft</option>
<option value="ACS" >ACS</option>
<option value="Huawei" >Huawei</option>
<option value="Dell" >Dell</option>
<option value="Logica" >Logica</option>
<option value="General Dynamics" >General Dynamics</option>
<option value="Alcatel-Lucent" >Alcatel-Lucent</option>
<option value="Self Employed Professional">Self Employed
Professional</option>
</select><br/><br/>
</div>
Monthly Income<input class="form-control" id="focusedInput" type="text" name="monthly_income" required />
<br><br>
Reason for loan:*
<select class="form-control" name="reason_for_loan">
<option value="select">Select</option>
<option value="newcar">Car</option>
<option value="marriage">Marriage</option>
<option value="Other">Other</option>
</select>
<br><br>
Total years of work experience:*
<select class="form-control" name="experience">
<option value="select">Select</option>
<option value="0"> <1 </option>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
<option value="8">8</option>
<option value="9">9</option>
<option value="10">10</option>
<option value="11">>10</option>
</select>
<br><br>
Tenure:*<input name="loan_tenure" type="text" class="form-control"required />
<br><br>
Loan Amount:*<input type="text" name="loan_amt" class="form-control" required />
<br/><br/>
ROI:10.5<input name="emi" type="text" value=10.5 class="form-control" disabled>
<br><br>
EMI:* <input name="emi" type="text" class="form-control" required />
<br><br>
Guarantor Name:*<input name="guarantorname" type="text" class="form-control" required />
<br><br>
Guarantor's Annual income(Rs):*<input name="guarantor_address" class="form-control" type="text"required />
<br><br>
Guarantor's Phone number:*<input name="guarantor_contact" class="form-control" type="text"required />
<br><br>
Existing customer:* <input class="form-control" name="cust_gender" type="radio" value="yes">Yes
<input class="form-control" name="cust_gender" type="radio">No<br/>
<br><br>
<input class="form-control" type="checkbox"required /> I agree with terms & conditions:*
<br><br>
Savings account number:*<input class="form-control" name="acc_no" type="text"required >
<br><br>
<input type="submit" value="Submit" name="personalloanhandler" />
</div>
</form>
</div>
<script>
$(document).ready(function() {
$("#divLoanApplicationForm").hide();
$("#salariedType").hide();
$("#selfEmployedType").hide();
});
$("#salaried").click(function(e){
$("#divLoanApplicationForm").hide();
$("#salariedType").show();
$("#selfEmployedType").hide();
});
$("#self_employed_business").click(function(e){
$("#divLoanApplicationForm").show();
$("#salariedType").hide();
$("#selfEmployedType").show();
});
/*$("#employmenttype").ready(function(e) {
var value=$("#employmenttype").val();
$("#divLoanApplicationForm").show();
if(value=="SALARIED")
{
$("#selfEmployedType").hide();
$("#salariedType").show();
}
if(value=="SELF_EMPLOYED_BUSINESS")
{
$("#selfEmployedType").show();
$("#salariedType").hide();
}
});*/
</script>
</body>
</html>
The Jsp Page(personalloanhandler.jsp):
<%@ page language="java" import="java.sql.*"%>
<%
String appid = request.getParameter("app_id");
String mobileNumber = request.getParameter("mobilenumber");
String emailId = request.getParameter("email");
String pancardNumber = request.getParameter("pan");
String applicantGender = request.getParameter("gender");
String dateofBirth = request.getParameter("seldob");
String applicantAddress = request.getParameter("address");
String cityofResidence = request.getParameter("city");
String stateofResidence = request.getParameter("state");
String typeofEmployment = request.getParameter("employmenttype");
String retirementAge = request.getParameter("retirementage");
int retiringAge = Integer.parseInt(retirementAge);
String dateofJoining = request.getParameter("doj");
String workExperience = request.getParameter("workexperience");
int experienceinWork = Integer.parseInt(workExperience);
String tinNo = request.getParameter("tin");
int tin = Integer.parseInt(tinNo);
String netProfit = request.getParameter("profit");
int profit = Integer.parseInt(netProfit);
String employeeName = request.getParameter("employer_name");
String monthlyIncome = request.getParameter("monthly_income");
int monthIncome = Integer.parseInt(monthlyIncome);
String reasonforLoan = request.getParameter("reason_for_loan");
String totalworkExpreience = request.getParameter("experience");
int workExperienceTotal = Integer.parseInt(totalworkExpreience);
String loanTenure = request.getParameter("loan_tenure");
int tenure = Integer.parseInt(loanTenure);
String loanAmount = request.getParameter("loan_amt");
int loanAmt = Integer.parseInt(loanAmount);
String guarantorName = request.getParameter("guarantorname");
String guarantorAddress = request.getParameter("guarantor_address");
String guarantorContact = request.getParameter("guarantor_contact");
int guarantorNo = Integer.parseInt(guarantorContact);
String emiAmount = request.getParameter("emi");
int emiAmt = Integer.parseInt(emiAmount);
String savingsaccntNumber = request.getParameter("acc_no");
int accNo = Integer.parseInt(savingsaccntNumber);
String applicantName = request.getParameter("fullname");
try{
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe","hr","themoonwalker");
PreparedStatement prepare = conn.prepareStatement("INSERT INTO BOI_Personal_loan_app-form values(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)");
prepare.setString(1,appid);
prepare.setString(2,mobileNumber);
prepare.setString(3,emailId );
prepare.setString(4,pancardNumber );
prepare.setString(5,applicantGender);
prepare.setString(6,dateofBirth );
prepare.setString(7,applicantAddress);
prepare.setString(8,cityofResidence);
prepare.setString(9,stateofResidence);
prepare.setString(10,typeofEmployment);
prepare.setInt(11,retiringAge);
prepare.setString(12,dateofJoining);
prepare.setInt(13,experienceinWork);
prepare.setInt(14,tin);
prepare.setInt(15,profit);
prepare.setString(16,employeeName);
prepare.setInt(17,monthIncome);
prepare.setString(18,reasonforLoan);
prepare.setInt(19,workExperienceTotal);
prepare.setInt(20,tenure);
prepare.setInt(21,loanAmt);
prepare.setString(22,guarantorName);
prepare.setString(23,guarantorAddress );
prepare.setInt(24,guarantorNo );
prepare.setInt(25,emiAmt );
prepare.setInt(26,accNo);
prepare.setString(27,applicantName );
int i = prepare.executeUpdate();
if (i > 0){
out.println("Success");
}
}catch(Exception e){
System.out.println("Sorry couldn't process the request. Please try again");
}
out.close();
%>
我在项目中包含了必要的jar文件和所有内容。请帮忙
答案 0 :(得分：1)
tin and profit inputs are required but not visible, so you can't submit the form
<div id = "self_employed_business" style="display:none">
TIN no:*<input class="form-control" name="tin" id="focusedInput" type="text" required /><br/>
<br><br>
Net profit (annually):*<input class="form-control" name="profit" id="focusedInput" type="text" required /><br/><br/>
</div>