Witam, problem jest w tym gdyż używam Spring MVC + Hibernate validator do walidacji formularzy, tylko nie działa. BindingResult zawszę zwraca false, niezależnie od tego czy dane zostaną wprowadzone poprawnie czy też nie. Nie wiem w czym jest problem. Proszę o rzucenie okiem na kod i wskazanie gdzie robię błąd. Dopiero uczę się Spring'a.
Klasa Customer
package com.mzuchnik;
import javax.validation.constraints.NotBlank;
import javax.validation.constraints.Size;
public class Customer {
@NotBlank
private String firstName;
@Size(min = 1, message = "is required")
private String lastName;
public Customer() {
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
}
Klasa CustomerController
package com.mzuchnik;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import javax.validation.Valid;
@Controller
@RequestMapping("/customer")
public class CustomerController {
@RequestMapping(value = "/showForm")
public String showForm(Model model)
{
Customer customer = new Customer();
model.addAttribute("customer", customer);
return "customer-form";
}
@RequestMapping(value = "/processForm")
public String processForm(
@Valid @ModelAttribute("customer") Customer customer,
BindingResult theBindingResult)
{
if(theBindingResult.hasErrors()) { // <--- zawsze zwraca false :c
return "customer-form";
}else {
return "customer-confirm";
}
}
}
customer-form.jsp
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Customer Form</title>
<style>
.error{ color:red }
</style>
</head>
<body>
<form:form action="processForm" modelAttribute="customer">
Podaj imię: <form:input path="firstName" />
<form:errors path="firstName" cssClass="error"/>
<br>
Podaj nazwisko <form:input path="lastName" />
<form:errors path="lastName" cssClass="error"/>
<br>
<input type="submit" value="Akceptuj"/>
</form:form>
</body>
</html>
customer-confirm.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Customer Confirm</title>
</head>
<body>
Twoję imię i nazwisko to: ${customer.firstName} ${customer.lastName}
</body>
</html>
Plik konfiguracyjny web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
dispatcher-servlet.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!-- <mvc:annotation-driven />-->
<context:component-scan base-package="com.mzuchnik"/>
<context:annotation-config />
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
</beans>