在我的Spring MVC应用程序中，表单控制器已正确连接并按预期显示表单。
但是“提交”按钮不起作用。此外，FormController的onSubmit（）方法永远不会被调用，因为我的调试打印语句没有显示。
相反，当我单击“提交”时，表单会重新加载并且某些字段会发生变化（非常奇怪的行为）。
我像往常一样在Spring MVC中实现了我的FormController：
public class RegisterController extends SimpleFormController {
public RegisterController()
{
setCommandClass(Customer.class);
setCommandName("customer");
}
@Override
protected ModelAndView onSubmit(Object command) throws Exception {
// never gets run!
Customer customer = (Customer) command;
System.out.println("TEST. Obtained Customer object: " + customer.toString());
}
}
Dispatcher Servlet的我的bean连接是：
<bean name="/register.htm" class="techbooks.web.RegisterController"
p:formView="register" p:successView="home"/>
“register”是指register.htm（.jsp）和home.htm（.jsp）的“home”，两者都存在。
JSP：
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<html>
<head>
<meta http-equiv="Content-Language" content="en-us" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>TechBooks.com</title>
<link rel="stylesheet" type="text/css" href="css/main.css" />
</head>
<body>
<center>
<table style="width: 850px" class="style2">
<form:form method="POST" commandName="customer">
<tr>
<td><h1>Register New Customer</h1></td>
</tr>
<tr>
<td>
<table>
<tr>
<td align="left">Customer ID:</td>
<td align="left"><form:input path="customerId"/></td>
</tr>
<tr>
<td align="left">Customer Password:</td>
<td align="left"><form:password path="customerPassword"/></td>
</tr>
<tr>
<td align="left">Customer First Name:</td>
<td align="left"><form:input path="customerFirstName"/></td>
</tr>
<tr>
<td align="left">Customer Last Name:</td>
<td align="left"><form:input path="customerLastName"/></td>
</tr>
<tr>
<td align="left">Customer Address:</td>
<td align="left"><form:input path="customerAddress"/></td>
</tr>
<tr>
<td align="left">Customer City:</td>
<td align="left"><form:input path="customerCity"/></td>
</tr>
<tr>
<td align="left">Customer State:</td>
<td align="left"><form:input path="customerState"/></td>
</tr>
<tr>
<td align="left">Customer Zip Code:</td>
<td align="left"><form:input path="customerZipCode"/></td>
</tr>
<tr>
<td align="left">Customer Email Address:</td>
<td align="left"><form:input path="customerEmailAddress"/></td>
</tr>
<tr>
<td align="left">Date Added:</td>
<td align="left"><form:input path="customerDateAdded" /></td>
</tr>
<tr>
<td align="left">Is Admin?</td>
<td align="left"><form:checkbox path="customerIsAdmin"/></td>
</tr>
<tr>
<td align="left"><input type="submit" value="Register"/><br/><input type="button" value="Cancel"/>
</td>
<td align="left"> </td>
</tr>
</table>
</td>
</tr>
</form:form>
</table>
</center>
</body>
</html>
客户bean类：
package techbooks.model;
import java.io.Serializable;
import java.util.Date;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
public class Customer implements Serializable {
@Id
private String customerId;
private String customerPassword;
private String customerFirstName;
private String customerLastName;
private String customerAddress;
private String customerCity;
private String customerState;
private String customerZipCode;
private String customerEmailAddress;
private Date customerDateAdded;
private Boolean customerIsAdmin;
/**
* @return the customerId
*/
public String getCustomerId() {
return customerId;
}
/**
* @param customerId the customerId to set
*/
public void setCustomerId(String customerId) {
this.customerId = customerId;
}
/**
* @return the customerPassword
*/
public String getCustomerPassword() {
return customerPassword;
}
/**
* @param customerPassword the customerPassword to set
*/
public void setCustomerPassword(String customerPassword) {
this.customerPassword = customerPassword;
}
/**
* @return the customerFirstName
*/
public String getCustomerFirstName() {
return customerFirstName;
}
/**
* @param customerFirstName the customerFirstName to set
*/
public void setCustomerFirstName(String customerFirstName) {
this.customerFirstName = customerFirstName;
}
/**
* @return the customerLastName
*/
public String getCustomerLastName() {
return customerLastName;
}
/**
* @param customerLastName the customerLastName to set
*/
public void setCustomerLastName(String customerLastName) {
this.customerLastName = customerLastName;
}
/**
* @return the customerAddress
*/
public String getCustomerAddress() {
return customerAddress;
}
/**
* @param customerAddress the customerAddress to set
*/
public void setCustomerAddress(String customerAddress) {
this.customerAddress = customerAddress;
}
/**
* @return the customerCity
*/
public String getCustomerCity() {
return customerCity;
}
/**
* @param customerCity the customerCity to set
*/
public void setCustomerCity(String customerCity) {
this.customerCity = customerCity;
}
/**
* @return the customerState
*/
public String getCustomerState() {
return customerState;
}
/**
* @param customerState the customerState to set
*/
public void setCustomerState(String customerState) {
this.customerState = customerState;
}
/**
* @return the customerZipCode
*/
public String getCustomerZipCode() {
return customerZipCode;
}
/**
* @param customerZipCode the customerZipCode to set
*/
public void setCustomerZipCode(String customerZipCode) {
this.customerZipCode = customerZipCode;
}
/**
* @return the customerEmailAddress
*/
public String getCustomerEmailAddress() {
return customerEmailAddress;
}
/**
* @param customerEmailAddress the customerEmailAddress to set
*/
public void setCustomerEmailAddress(String customerEmailAddress) {
this.customerEmailAddress = customerEmailAddress;
}
/**
* @return the customerDateAdded
*/
public Date getCustomerDateAdded() {
return customerDateAdded;
}
/**
* @param customerDateAdded the customerDateAdded to set
*/
public void setCustomerDateAdded(Date customerDateAdded) {
this.customerDateAdded = customerDateAdded;
}
/**
* @return the customerIsAdmin
*/
public Boolean getCustomerIsAdmin() {
return customerIsAdmin;
}
/**
* @param customerIsAdmin the customerIsAdmin to set
*/
public void setCustomerIsAdmin(Boolean customerIsAdmin) {
this.customerIsAdmin = customerIsAdmin;
}
}
正如我所说，表单永远不会被提交，并且Controller的onSubmit（）永远不会执行。感谢您的任何想法
答案 0 :(得分：1)
我认为可能存在一些绑定错误，所以我建议覆盖
protected ModelAndView processFormSubmission(HttpServletRequest request,
HttpServletResponse response,
Object command,
BindException errors)
throws Exception
并检查errors.hasErrors（）是否返回false，以确保提交成功。
答案 1 :(得分：0)
除了上面接受的答案，我想指出一些事情 -
如果你已经被覆盖
通常在protected Map referenceData（HttpServletRequest请求，对象命令，错误错误）
GET请求上调用的控制器中的方法即使在提交表单（POST）时也会被调用。这是因为如果有任何Binding错误形式将重新加载，再次调用referecenData()。当然你可以覆盖processFormSubmission()方法，但如果你只是想要覆盖onSubmit()方法我建议覆盖
protected ModelAndView onSubmit（HttpServletRequest请求，HttpServletResponse响应，Object命令，BindException错误）
方法并查看BindException错误。