BAEL-112 | Spring MVC Validation - a Custom Validator (#934)
* BAEL-112 | Spring MVC Validation - a Custom Validator ### Implementation of a custom validator in Employee class using Validator interface * BAEL-112 | Spring MVC Validation - a Custom Validator Implementation of a custom validator in Employee class using Validator interface * BAEL-112 | Spring MVC Validation - a Custom Validator Reverting changes made for a previous module * BAEL-112 | Spring MVC Validation - a Custom Validator Reverting changes to module ‘spring-mvc-java’ * BAEL-112 | Spring MVC Validation - a Custom Validator Reverting changes to module ‘spring-mvc-java’ * BAEL-112 | Spring MVC Validation - a Custom Validator Final reversion of changes to previous module used * BAEL-112 | Spring MVC Validation - a Custom Validator formats the EmployeeValidator class * BAEL-112 | Spring MVC Validation - a Custom Validator Modification from @RequestMapping POST to @PostMapping as per Final Review * BAEL-112 | Spring MVC Validation - a Custom Validator Reverts the changes made to Employee and Employee Controller. Created a new class, Customer as implementation for custom validation * BAEL-112 | Spring MVC Validation - a Custom Validator Reverting EmployeeController * BAEL-112 | Spring MVC Validation - a Custom Validator Reverting EmployeeHome
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gatmeister
Zeger Hendrikse
parent
fa2f0159a9
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2b2dc447bf
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package com.baeldung.springmvcforms.controller;
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import javax.validation.Valid;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Controller;
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import org.springframework.ui.ModelMap;
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import org.springframework.validation.BindingResult;
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import org.springframework.web.bind.annotation.ModelAttribute;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestMethod;
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import org.springframework.web.servlet.ModelAndView;
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import com.baeldung.springmvcforms.domain.Customer;
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import com.baeldung.springmvcforms.validator.CustomerValidator;
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@Controller
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public class CustomerController {
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@Autowired
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CustomerValidator validator;
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@RequestMapping(value = "/customer", method = RequestMethod.GET)
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public ModelAndView showForm() {
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return new ModelAndView("customerHome", "customer", new Customer());
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}
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@PostMapping("/addCustomer")
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public String submit(@Valid @ModelAttribute("customer") final Customer customer, final BindingResult result, final ModelMap model) {
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validator.validate(customer, result);
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if (result.hasErrors()) {
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return "customerHome";
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}
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model.addAttribute("customerId", customer.getCustomerId());
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model.addAttribute("customerName", customer.getCustomerName());
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model.addAttribute("customerContact", customer.getCustomerContact());
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model.addAttribute("customerEmail", customer.getCustomerEmail());
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return "customerView";
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}
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}
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package com.baeldung.springmvcforms.domain;
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public class Customer {
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private String customerId;
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private String customerName;
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private String customerContact;
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private String customerEmail;
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public Customer() {
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super();
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}
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public String getCustomerId() {
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return customerId;
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}
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public void setCustomerId(String customerId) {
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this.customerId = customerId;
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}
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public String getCustomerName() {
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return customerName;
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}
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public void setCustomerName(String customerName) {
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this.customerName = customerName;
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}
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public String getCustomerContact() {
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return customerContact;
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}
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public void setCustomerContact(String customerContact) {
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this.customerContact = customerContact;
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}
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public String getCustomerEmail() {
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return customerEmail;
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}
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public void setCustomerEmail(String customerEmail) {
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this.customerEmail = customerEmail;
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}
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}
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package com.baeldung.springmvcforms.validator;
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import org.springframework.stereotype.Component;
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import org.springframework.validation.Errors;
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import org.springframework.validation.ValidationUtils;
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import org.springframework.validation.Validator;
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import com.baeldung.springmvcforms.domain.Customer;
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@Component
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public class CustomerValidator implements Validator {
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@Override
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public boolean supports(Class<?> clazz) {
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return Customer.class.isAssignableFrom(clazz);
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}
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@Override
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public void validate(Object target, Errors errors) {
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ValidationUtils.rejectIfEmptyOrWhitespace(errors, "customerId", "error.customerId", "Customer Id is required.");
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ValidationUtils.rejectIfEmptyOrWhitespace(errors, "customerName", "error.customerName", "Customer Name is required.");
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ValidationUtils.rejectIfEmptyOrWhitespace(errors, "customerContact", "error.customerNumber", "Customer Contact is required.");
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ValidationUtils.rejectIfEmptyOrWhitespace(errors, "customerEmail", "error.customerEmail", "Customer Email is required.");
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}
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}
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<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%>
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<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>Form Example - Add Customer</title>
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<style>
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.error {
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color: #ff0000;
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font-weight: bold;
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}
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</style>
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</head>
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<body>
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<h3>Welcome, Enter The Customer Details</h3>
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<form:form method="POST" action="${pageContext.request.contextPath}/addCustomer" modelAttribute="customer">
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<table>
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<tr>
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<td><form:label path="customerId">Customer Id</form:label></td>
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<td><form:input path="customerId" /></td>
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<td><form:errors path="customerId" cssClass="error" /></td>
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</tr>
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<tr>
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<td><form:label path="customerName">Customer Name</form:label></td>
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<td><form:input path="customerName" /></td>
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<td><form:errors path="customerName" cssClass="error" /></td>
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</tr>
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<tr>
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<td><form:label path="customerContact">Customer Contact</form:label></td>
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<td><form:input path="customerContact"/></td>
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<td><form:errors path="customerContact" cssClass="error" /></td>
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</tr>
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<tr>
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<td><form:label path="customerEmail">Customer Email</form:label></td>
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<td><form:input path="customerEmail" /></td>
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<td><form:errors path="customerEmail" cssClass="error" /></td>
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</tr>
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<tr>
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<td><input type="submit" value="Submit" /></td>
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</tr>
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</table>
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</form:form>
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</body>
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</html>
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<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
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<html>
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<head>
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<title>Spring MVC Form Handling</title>
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</head>
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<body>
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<h2>Submitted Customer Information</h2>
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<table>
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<tr>
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<td>Customer Id :</td>
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<td>${customerId}</td>
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</tr>
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<tr>
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<td>Customer Name :</td>
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<td>${customerName}</td>
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</tr>
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<tr>
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<td>Customer Contact :</td>
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<td>${customerContact}</td>
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</tr>
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<tr>
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<td>Customer Email :</td>
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<td>${customerEmail}</td>
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</tr>
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</table>
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</body>
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</html>
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