大家好我想创建一个页面，它与客户端和放电之间有关系。我已经定义了一个组合框，它填充了客户端表单模型的数据，我想要在Discharge表中的客户端ID，但是如果你在前端检查它看起来不错但在后端它的null，那么我不会在后端获得价值所以请帮助我来解决这个问题。
这里是代码，
DischargeCard.java
@Entity
@Table(name = "Discharge_card")
public class DischargeCard {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "ID")
private int DischargeId;
@ManyToOne(cascade = {CascadeType.ALL})
@JoinColumn(name = "Client_id")
private Client Client_id;
@Column(name = "IPDNo")
private String ipdno;
@Column(name = "DOA")
private Date DOA;
@Column(name = "DOO")
private Date DOO;
@Column(name = "DOD")
private Date DOD;
@Column(name = "DOB")
private Date DOB;
@Column(name = "Age")
private int age;
@Column(name = "Sex")
private String sex;
@Column(name = "Phone")
private String phone;
@Column(name = "Address")
private String Address;
@Column(name = "Diagnosis")
private String diagnosis;
@Column(name = "Treatment")
private String treatment;
@Column(name = "Anesthesia")
private String anesthesia;
@Column(name = "Clinical_Presentation")
private String clinical_presentation;
@Column(name = "Investigation")
private String investigation;
@Column(name = "Given_Treatment")
private String given_treatment;
@Column(name = "Advice_on_Discharge")
private String advice;
< generates setter / getter >
Client.java
@Entity
@Table(name = "CLIENT")
public class Client {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "ID")
int clientId;
@NotEmpty(message = "Please Enter Client Name..." )
@Column(name = "Name")
String clientName;
@Column(name = "ContactName")
String contactName;
@NotEmpty(message = " Please Enter Client Address...")
@Column(name = "Address")
String clientAddress;
@NotEmpty(message = "Please Enter Client Phone...")
@Size (min = 10)
@Pattern (regexp = "[0-9]*")
@Column(name = "Phone")
String phone;
@Email (message = "Please Enter Proper Email Address of Client...")
@Column(name = "Email")
String email;
@NotEmpty (message = "Please Enter Client City...")
@Column(name = "City")
String city;
@NotEmpty (message = "Please Enter Client Zip Code...")
@Size (min = 6)
@Pattern (regexp = "[0-9]*")
@Column(name = "Zip")
String zip;
@NotEmpty(message = "Please Enter Client State...")
@Column(name = "State")
String state;
@NotEmpty (message = "Please Enter Client Country...")
@Column(name = "Country")
String country;
@Column(name = "Private")
String privateNote;
@Column(name = "Other")
String otherNote;
@ManyToOne
@JoinColumn(name = "Company_id")
private Company company;
@OneToMany(mappedBy = "Client_id")
private Set<Invoice> invoice;
@OneToMany(mappedBy = "Client_ID")
private Set<Estimate> estimate;
@OneToMany(mappedBy = "Client_id")
private Set<DischargeCard> discharges;
< generated setter / getter >
DischargeCardController.java
@Controller
public class DischargeCardController {
@Autowired
DischargeCardService ds;
@Autowired
ClientService service;
@RequestMapping(value = "/dishcharge", method = RequestMethod.GET)
public String showClientDetailsPage(Model m, HttpServletRequest req) {
m.addAttribute("dischargecard", new DischargeCard());
m.addAttribute("actionURL", "saveCard");
List<Client> obj = service.getAll("");
m.addAttribute("clientList", obj);
List<String> clientlist = new ArrayList<>();
for(Client c : obj)
{
clientlist.add(c.getClientName().toString());
}
m.addAttribute("client_name_list",clientlist);
return "dischargeCard";
}
@RequestMapping(value = "/saveCard", method = RequestMethod.POST)
public String saveCompanyDetails(@ModelAttribute("DischargeCard")DischargeCard dc, BindingResult result,
HttpServletRequest req) {
String redirectTo = "";
/*if(result.hasErrors())
{
redirectTo = "dischargeCard";
return redirectTo;
}
else
{*/
ds.saveData(dc);
redirectTo = "redirect:dishcharge";
return redirectTo;
}
@RequestMapping(value = "/searchDischargeCard", method = RequestMethod.GET)
public ModelAndView showUsersPage() {
ModelAndView mv = new ModelAndView("searchDischargeCard");
List<Client> obj = service.getAll("");
mv.addObject("clientList", obj);
List<String> clientlist = new ArrayList<>();
for(Client c : obj)
{
clientlist.add(c.getClientName().toString());
}
mv.addObject("client_name_list",clientlist);
mv.addObject("DischargeList",ds.getAll(""));
return mv;
}
}
DischargeCard.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://www.springframework.org/tags" prefix="spring"%>
<%@ taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<jsp:include page="header.jsp"></jsp:include>
<jsp:include page="menu.jsp"></jsp:include>
<!-- BEGIN Content -->
<div id="main-content">
<!-- BEGIN Page Title -->
<div class="page-title">
<div>
<h1>
<i class="fa fa-file-o"></i> Add Dishcharge Card
</h1>
<h4>Add data of new Discharge Card</h4>
</div>
</div>
<!-- END Page Title -->
<!-- BEGIN Breadcrumb -->
<div id="breadcrumbs">
<ul class="breadcrumb">
<li><i class="fa fa-home"></i> <a href="index.html">Home</a> <span
class="divider"><i class="fa fa-angle-right"></i></span></li>
<li class="active">Discharge</li>
</ul>
</div>
<!-- END Breadcrumb -->
<div class="row">
<div class="col-md-12">
<div class="box box-pink">
<div class="box-title">
<h3>
<i class="fa fa-bars"></i> Discharge Card
</h3>
<div class="box-tool">
<a data-action="collapse" href="#"><i class="fa fa-chevron-up"></i></a>
<a data-action="close" href="#"><i class="fa fa-times"></i></a>
</div>
</div>
<div class="box-content">
<%-- <form action="#" > --%>
<form:form action="${actionURL}" class="form-horizontal"
id="wizard-validation" method="post"
modelAttribute="dischargecard">
<form:hidden path="DischargeId" id="DischargeId" />
<div class="form-wizard" id="form-wizard-2">
<ul class="row steps steps-fill">
<li class="col-xs-12 col-sm-6 col-lg-3"><a href="#tab2-1"
data-toggle="tab" class="step active"> <span class="number">1</span>
<span class="desc"><i class="fa fa-check"></i> Client
Details</span>
</a></li>
<li class="col-xs-12 col-sm-6 col-lg-3"><a href="#tab2-2"
data-toggle="tab" class="step"> <span class="number">2</span>
<span class="desc"><i class="fa fa-check"></i>
Treatment Details</span>
</a></li>
<li class="col-xs-12 col-sm-6 col-lg-3"><a href="#tab2-3"
data-toggle="tab" class="step"> <span class="number">3</span>
<span class="desc"><i class="fa fa-check"></i> Photo's</span>
</a></li>
<li class="col-xs-12 col-sm-6 col-lg-3"><a href="#tab2-4"
data-toggle="tab" class="step"> <span class="number">4</span>
<span class="desc"><i class="fa fa-check"></i> Confirm</span>
</a></li>
</ul>
<div class="progress progress-striped">
<div class="progress-bar progress-bar-primary"></div>
</div>
<div class="tab-content">
<div class="tab-pane active" id="tab2-1">
<div class="form-group">
<label for="firstname2"
class="col-sm-3 col-lg-2 control-label">Client Name</label>
<div class="col-sm-5 col-lg-3 controls">
<!-- <input type="text" name="firstname2" id="firstname2"
class="form-control" data-rule-required="true"> -->
<%-- <form:select path="Client_id"
class="form-control chosen" data-rule-required="true"
style="border-radius: 8px;"
data-placeholder="Choose a client" tabindex="1">
<option value=""></option>
<c:forEach var="client" items="${clientList}">
<form:option value="${client.clientId}">${client.clientName}</form:option>
</c:forEach>
</form:select> --%>
<form:select path="Client_id" items="${clientList}"
itemValue="clientId" itemLabel="clientName" />
</div>
</div>
<div class="form-group">
<label for="firstname2"
class="col-sm-3 col-lg-2 control-label">IPD Number</label>
<div class="col-sm-5 col-lg-3 controls">
<form:input path="ipdno" name="ipdno" type="text"
class="form-control" />
</div>
</div>
<div class="form-group">
<label class="col-sm-3 col-lg-2 control-label">Date of
Admission</label>
<div class="col-sm-5 col-lg-3 controls">
<form:input path="DOA" name="doa"
class="form-control date-picker" id="dp1" size="16"
type="text" value="" />
</div>
<div class="input-group col-sm-5 col-lg-2">
<a class="input-group-addon" href="#"><i
class="fa fa-clock-o"></i></a>
<form:input path="DOA" name="doa"
class="form-control timepicker-default" type="text" />
</div>
</div>
<div class="form-group">
<label class="col-sm-3 col-lg-2 control-label">Date of
Operation</label>
<div class="col-sm-5 col-lg-3 controls">
<form:input path="DOO" name="doo"
class="form-control date-picker" id="dp1" size="16"
type="text" value="" />
</div>
<div class="input-group col-sm-5 col-lg-2">
<a class="input-group-addon" href="#"><i
class="fa fa-clock-o"></i></a>
<form:input path="DOO" name="doo"
class="form-control timepicker-default" type="text" />
</div>
</div>
<div class="form-group">
<label class="col-sm-3 col-lg-2 control-label">Date of
Discharge</label>
<div class="col-sm-5 col-lg-3 controls">
<form:input path="DOD" name="dod"
class="form-control date-picker" id="dp1" size="16"
type="text" value="" />
</div>
<div class="input-group col-sm-5 col-lg-2">
<a class="input-group-addon" href="#"><i
class="fa fa-clock-o"></i></a>
<form:input path="DOD" name="dod"
class="form-control timepicker-default" type="text" />
</div>
</div>
<div class="form-group">
<label class="col-sm-3 col-lg-2 control-label">Date of
Birth</label>
<div class="col-sm-5 col-lg-3 controls">
<form:input path="DOB" name="dob"
class="form-control date-picker" id="dp1" size="16"
type="text" value="" />
</div>
</div>
<div class="form-group">
<label for="lastname2" class="col-sm-3 col-lg-2 control-label">Age</label>
<div class="col-sm-5 col-lg-3 controls">
<form:input path="age" name="Age" type="text" id="lastname2"
class="form-control" />
</div>
</div>
<div class="form-group">
<label class="col-sm-3 col-lg-2 control-label">Radio
Buttons</label>
<div class="col-sm-9 col-lg-10 controls">
<label class="radio-inline"> <form:radiobutton
path="sex" name="optionsRadios2" value="Male" /> Male
</label> <label class="radio-inline"> <form:radiobutton
path="sex" name="optionsRadios2" value="Female" /> Female
</label>
</div>
</div>
<div class="form-group">
<label for="firstname2"
class="col-sm-3 col-lg-2 control-label">Phone</label>
<div class="col-sm-5 col-lg-3 controls">
<form:input path="phone" name="Phone" type="text"
class="form-control" />
</div>
</div>
<div class="form-group">
<label class="col-sm-3 col-lg-2 control-label">Address</label>
<div class="col-sm-5 col-lg-5 controls">
<form:textarea path="Address" name="address"
class="form-control" rows="4"></form:textarea>
</div>
</div>
</div>
<div class="tab-pane" id="tab2-2">
<div class="form-group">
<label class="col-sm-3 col-lg-2 control-label">Diagnosis</label>
<div class="col-sm-5 col-lg-5 controls">
<form:textarea path="diagnosis" name="Diagnosis"
class="form-control" rows="4"></form:textarea>
</div>
</div>
<div class="form-group">
<label class="col-sm-3 col-lg-2 control-label">Treatment</label>
<div class="col-sm-5 col-lg-5 controls">
<form:textarea path="treatment" name="Treatment"
class="form-control" rows="4"></form:textarea>
</div>
</div>
<div class="form-group">
<label for="firstname2"
class="col-sm-3 col-lg-2 control-label">Anesthesia</label>
<div class="col-sm-5 col-lg-3 controls">
<form:input path="anesthesia" name="Anesthesia" type="text"
class="form-control" />
</div>
</div>
<div class="form-group">
<label class="col-sm-3 col-lg-2 control-label">Clinical
Presentation</label>
<div class="col-sm-5 col-lg-5 controls">
<form:textarea path="clinical_presentation"
name="clinicalpresentation" class="form-control" rows="4"></form:textarea>
</div>
</div>
<div class="form-group">
<label class="col-sm-3 col-lg-2 control-label">Investigation</label>
<div class="col-sm-5 col-lg-5 controls">
<form:textarea path="investigation" name="Investigation"
class="form-control" rows="4"></form:textarea>
</div>
</div>
<div class="form-group">
<label class="col-sm-3 col-lg-2 control-label">Given
Treatment</label>
<div class="col-sm-5 col-lg-5 controls">
<form:textarea path="given_treatment" name="giventreatment"
class="form-control" rows="4"></form:textarea>
</div>
</div>
<div class="form-group">
<label class="col-sm-3 col-lg-2 control-label">Treatment
Advice on Discharge</label>
<div class="col-sm-5 col-lg-5 controls">
<form:textarea path="advice" name="Advice"
class="form-control" rows="4"></form:textarea>
</div>
</div>
</div>
<div class="tab-pane" id="tab2-3">
<div class="form-group">
<label for="country2" class="col-sm-3 col-lg-2 control-label">Country</label>
<div class="col-sm-5 col-lg-3 controls">
<input type="text" name="country2" id="country2"
class="form-control">
</div>
</div>
<div class="form-group">
<label for="city2" class="col-sm-3 col-lg-2 control-label">City</label>
<div class="col-sm-5 col-lg-3 controls">
<input type="text" name="city2" id="city2"
class="form-control">
</div>
</div>
<%-- <div class="form-group">
<label class="col-sm-3 col-lg-2 control-label">Gender</label>
<div class="col-sm-5 col-lg-3 controls">
<label class="radio-inline">
<form:radiobutton path="sex" name="gender" value="Male" /> Male
</label> <label class="radio-inline">
<form:radiobutton path="sex" name="gender" value="Female" /> Female
</label>
</div>
</div> --%>
<div class="form-group">
<label for="textarea2" class="col-sm-3 col-lg-2 control-label">More
info</label>
<div class="col-sm-5 col-lg-3 controls">
<textarea name="textarea2" id="textarea2" rows="5"
class="form-control"></textarea>
</div>
</div>
</div>
<div class="tab-pane" id="tab2-4">
<div class="form-group">
<label class="col-sm-3 col-lg-2 control-label">First
Name</label>
<div class="col-sm-5 col-lg-3 controls">
<span class="text">Penny</span>
</div>
</div>
<div class="form-group">
<label class="col-sm-3 col-lg-2 control-label">last
Name</label>
<div class="col-sm-5 col-lg-3 controls">
<span class="text">Rodrigez</span>
</div>
</div>
<div class="form-group">
<label class="col-sm-3 col-lg-2 control-label">Gender</label>
<div class="col-sm-5 col-lg-3 controls">
<span class="text">Female</span>
</div>
</div>
<div class="form-group">
<label class="col-sm-3 col-lg-2 control-label">Username</label>
<div class="col-sm-5 col-lg-3 controls">
<span class="text">PennyRod</span>
</div>
</div>
<div class="form-group">
<label class="col-sm-3 col-lg-2 control-label">Email</label>
<div class="col-sm-5 col-lg-3 controls">
<span class="text">pennyrod@domain.com</span>
</div>
</div>
</div>
</div>
<div class="form-group">
<div class="col-sm-9 col-sm-offset-3 col-lg-10 col-lg-offset-2">
<a href="javascript:;" class="btn button-previous">Back</a> <a
href="javascript:;" class="btn btn-primary button-next">Continue</a>
<button type="submit" class="btn btn-success button-submit">Submit</button>
</div>
</div>
</div>
</form:form>
</div>
</div>
</div>
</div>
</div>
<!-- END Main Content -->
<jsp:include page="footer.jsp"></jsp:include>