Let us implement the back-end customer service operations.
public interface CustomerRepository extends JpaRepository<Customer, Integer>{
Customer findByEmail(String email);
}
@Service
@Transactional
public class CustomerService
{
@Autowired CustomerRepository customerRepository;
public Customer getCustomerByEmail(String email) {
return customerRepository.findByEmail(email);
}
public Customer createCustomer(Customer customer) {
return customerRepository.save(customer);
}
}
@Component
public class CustomerValidator implements Validator
{
@Autowired private CustomerService custmoerService;
@Override
public boolean supports(Class<?> clazz) {
return Customer.class.isAssignableFrom(clazz);
}
@Override
public void validate(Object target, Errors errors) {
Customer customer = (Customer) target;
Customer customerByEmail = custmoerService.getCustomerByEmail(customer.getEmail());
if(customerByEmail != null){
errors.rejectValue("email", "error.exists",
new Object[]{customer.getEmail()},
"Email "+customer.getEmail()+" already in use");
}
}
}
Let us implement the CustomerController registration handler methods as follows:
@Controller
public class CustomerController extends JCartSiteBaseController
{
@Autowired private CustomerService customerService;
@Autowired private CustomerValidator customerValidator;
@Autowired protected PasswordEncoder passwordEncoder;
@Override
protected String getHeaderTitle()
{
return "Login/Register";
}
@RequestMapping(value="/register", method=RequestMethod.GET)
protected String registerForm(Model model)
{
model.addAttribute("customer", new Customer());
return "register";
}
@RequestMapping(value="/register", method=RequestMethod.POST)
protected String register(@Valid @ModelAttribute("customer") Customer customer,
BindingResult result, Model model, RedirectAttributes redirectAttributes)
{
customerValidator.validate(customer, result);
if(result.hasErrors()){
return "register";
}
String password = customer.getPassword();
String encodedPwd = passwordEncoder.encode(password);
customer.setPassword(encodedPwd);
Customer persistedCustomer = customerService.createCustomer(customer);
logger.debug("Created new Customer with id : {} and email : {}", persistedCustomer.getId(), persistedCustomer.getEmail());
redirectAttributes.addFlashAttribute("info", "Customer created successfully");
return "redirect:/login";
}
}
Finally let us create the register.html thymeleaf view as follows:
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:th="http://www.thymeleaf.org"
xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity3"
layout:decorator="layout/mainLayout">
<head>
<title>Register</title>
</head>
<body>
<div layout:fragment="content">
<div class="single-product-area">
<div class="zigzag-bottom"></div>
<div class="container">
<div class="row">
<div class="col-md-offset-3 col-md-6" >
<form id="login-form-wrap" th:action="@{/register}" th:object="${customer}" method="post">
<p class="form-row form-row-first">
<label for="firstName">FirstName <span class="required">*</span>
</label>
<input type="text" th:field="*{firstName}" class="input-text"/>
<p th:if="${#fields.hasErrors('firstName')}" th:errors="*{firstName}" th:errorclass="text-danger">Incorrect data</p>
</p>
<p class="form-row form-row-first">
<label for="lastName">LastName <span class="required">*</span>
</label>
<input type="text" th:field="*{lastName}" class="input-text"/>
<p th:if="${#fields.hasErrors('lastName')}" th:errors="*{lastName}" th:errorclass="text-danger">Incorrect data</p>
</p>
<p class="form-row form-row-first">
<label for="email">Email <span class="required">*</span>
</label>
<input type="email" th:field="*{email}" class="input-text" placeholder="Email"/>
<p th:if="${#fields.hasErrors('email')}" th:errors="*{email}" th:errorclass="text-danger">Incorrect data</p>
</p>
<p class="form-row form-row-last">
<label for="password">Password <span class="required">*</span>
</label>
<input type="password" th:field="*{password}" class="input-text" placeholder="Password"/>
<p th:if="${#fields.hasErrors('password')}" th:errors="*{password}" th:errorclass="text-danger">Incorrect data</p>
</p>
<p class="form-row form-row-first">
<label for="phone">Phone <span class="required">*</span>
</label>
<input type="text" th:field="*{phone}" class="input-text"/>
<p th:if="${#fields.hasErrors('phone')}" th:errors="*{phone}" th:errorclass="text-danger">Incorrect data</p>
</p>
<div class="clear"></div>
<p class="form-row">
<input type="submit" value="Login" class="button"/>
</p>
<p>
<div th:if="${info!=null}" class="alert alert-warning alert-dismissable" >
<p><i class="icon fa fa-warning"></i> <span th:text="${info}"></span></p>
</div>
</p>
<p class="lost_password">
Existing Customer? <a href="#" th:href="@{/login}" th:text="#{label.login}">Login</a>
</p>
<div class="clear"></div>
</form>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
Now new customers can click on Register link and register themselves. Once the registration is successful he can login and proceed to checkout the cart.
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