Erstellen Sie eine Benutzerregistrierungsanwendung mit Spring Boot, Spring Form Validation

package org.o7planning.sbformvalidation;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class SbRegistrationFormValidationThymeleafApplication {

    public static void main(String[] args) {
        SpringApplication.run(SbRegistrationFormValidationThymeleafApplication.class, args);
    }
}

 

package org.o7planning.sbformvalidation.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;

@Configuration
@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

	@Bean
	public PasswordEncoder passwordEncoder() {
		BCryptPasswordEncoder bCryptPasswordEncoder = new BCryptPasswordEncoder();
		return bCryptPasswordEncoder;
	}

	// In this example we do not use Security.
	// Override this method with empty code
	// to disable the default Spring Boot security.
	@Override
	protected void configure(HttpSecurity http) throws Exception {
		// Empty code!
	}
}

package org.o7planning.sbformvalidation.config;

import org.springframework.context.MessageSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.support.ReloadableResourceBundleMessageSource;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration
@EnableWebMvc
public class WebConfiguration implements WebMvcConfigurer {

	@Bean
	public MessageSource messageSource() {
		ReloadableResourceBundleMessageSource messageSource = new ReloadableResourceBundleMessageSource();
		// Load file: validation.properties
		messageSource.setBasename("classpath:validation");
		messageSource.setDefaultEncoding("UTF-8");
		return messageSource;
	}

}

package org.o7planning.sbformvalidation.model;

public class AppUser {
    

    private Long userId;
    private String userName;
    private String firstName;
    private String lastName;
    private boolean enabled;
    private String gender;
    private String email;
    private String encrytedPassword;
    
    private String countryCode;

    public AppUser() {

    }

    public AppUser(Long userId, String userName, String firstName, String lastName, //
            boolean enabled, String gender, //
            String email,String countryCode, String encrytedPassword) {
        super();
        this.userId = userId;
        this.userName = userName;
        this.firstName = firstName;
        this.lastName = lastName;
        this.enabled = enabled;
        this.gender = gender;
        this.email = email;
        this.countryCode= countryCode;
        this.encrytedPassword = encrytedPassword;
    }

    public Long getUserId() {
        return userId;
    }

    public void setUserId(Long userId) {
        this.userId = userId;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    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;
    }

    public boolean isEnabled() {
        return enabled;
    }

    public void setEnabled(boolean enabled) {
        this.enabled = enabled;
    }

    public String getGender() {
        return gender;
    }

    public void setGender(String gender) {
        this.gender = gender;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getEncrytedPassword() {
        return encrytedPassword;
    }

    public void setEncrytedPassword(String encrytedPassword) {
        this.encrytedPassword = encrytedPassword;
    }

    public String getCountryCode() {
        return countryCode;
    }

    public void setCountryCode(String countryCode) {
        this.countryCode = countryCode;
    }

}

 

package org.o7planning.sbformvalidation.model;

public class Country {

    private String countryCode;
    private String countryName;

    public Country() {

    }

    public Country(String countryCode, String countryName) {
        this.countryCode = countryCode;
        this.countryName = countryName;
    }

    public String getCountryCode() {
        return countryCode;
    }

    public void setCountryCode(String countryCode) {
        this.countryCode = countryCode;
    }

    public String getCountryName() {
        return countryName;
    }

    public void setCountryName(String countryName) {
        this.countryName = countryName;
    }
}
 

package org.o7planning.sbformvalidation.model;

public class Gender {

    public static final String MALE = "M";
    public static final String FEMALE = "F";
}

 

package org.o7planning.sbformvalidation.dao;

import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.o7planning.sbformvalidation.formbean.AppUserForm;
import org.o7planning.sbformvalidation.model.AppUser;
import org.o7planning.sbformvalidation.model.Gender;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.stereotype.Repository;

@Repository
public class AppUserDAO {

    // Config in WebSecurityConfig
    @Autowired
    private PasswordEncoder passwordEncoder;

    private static final Map<Long, AppUser> USERS_MAP = new HashMap<>();

    static {
        initDATA();
    }

    private static void initDATA() {
        String encrytedPassword = "";

        AppUser tom = new AppUser(1L, "tom", "Tom", "Tom", //
                true, Gender.MALE, "tom@waltdisney.com", encrytedPassword, "US");

        AppUser jerry = new AppUser(2L, "jerry", "Jerry", "Jerry", //
                true, Gender.MALE, "jerry@waltdisney.com", encrytedPassword, "US");

        USERS_MAP.put(tom.getUserId(), tom);
        USERS_MAP.put(jerry.getUserId(), jerry);
    }

    public Long getMaxUserId() {
        long max = 0;
        for (Long id : USERS_MAP.keySet()) {
            if (id > max) {
                max = id;
            }
        }
        return max;
    }

    //

    public AppUser findAppUserByUserName(String userName) {
        Collection<AppUser> appUsers = USERS_MAP.values();
        for (AppUser u : appUsers) {
            if (u.getUserName().equals(userName)) {
                return u;
            }
        }
        return null;
    }

    public AppUser findAppUserByEmail(String email) {
        Collection<AppUser> appUsers = USERS_MAP.values();
        for (AppUser u : appUsers) {
            if (u.getEmail().equals(email)) {
                return u;
            }
        }
        return null;
    }

    public List<AppUser> getAppUsers() {
        List<AppUser> list = new ArrayList<>();

        list.addAll(USERS_MAP.values());
        return list;
    }

    public AppUser createAppUser(AppUserForm form) {
        Long userId = this.getMaxUserId() + 1;
        String encrytedPassword = this.passwordEncoder.encode(form.getPassword());

        AppUser user = new AppUser(userId, form.getUserName(), //
                form.getFirstName(), form.getLastName(), false, //
                form.getGender(), form.getEmail(), form.getCountryCode(), //
                encrytedPassword);

        USERS_MAP.put(userId, user);
        return user;
    }

}
 

package org.o7planning.sbformvalidation.dao;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.o7planning.sbformvalidation.model.Country;
import org.springframework.stereotype.Repository;

@Repository
public class CountryDAO {

    private static final Map<String, Country> COUNTRIES_MAP = new HashMap<>();

    static {
        initDATA();
    }

    private static void initDATA() {

        Country vn = new Country("VN", "Vietnam");
        Country en = new Country("EN", "England");
        Country fr = new Country("FR", "France");
        Country us = new Country("US", "US");
        Country ru = new Country("RU", "Russia");

        COUNTRIES_MAP.put(vn.getCountryCode(), vn);
        COUNTRIES_MAP.put(en.getCountryCode(), en);
        COUNTRIES_MAP.put(fr.getCountryCode(), fr);
        COUNTRIES_MAP.put(us.getCountryCode(), us);
        COUNTRIES_MAP.put(ru.getCountryCode(), ru);
    }

    public Country findCountryByCode(String countryCode) {
        return COUNTRIES_MAP.get(countryCode);
    }

    public List<Country> getCountries() {
        List<Country> list = new ArrayList<>();
        list.addAll(COUNTRIES_MAP.values());
        return list;
    }

}

 

package org.o7planning.sbformvalidation.formbean;

public class AppUserForm {

    private Long userId;
    private String userName;
    private String firstName;
    private String lastName;
    private boolean enabled;
    private String gender;
    private String email;
    private String password;
    private String confirmPassword;
    private String countryCode;

    public AppUserForm() {

    }

    public AppUserForm(Long userId, String userName, //
            String firstName, String lastName, boolean enabled, //
            String gender, String email, String countryCode, //
            String password, String confirmPassword) {
        this.userId = userId;
        this.userName = userName;
        this.firstName = firstName;
        this.lastName = lastName;
        this.enabled = enabled;
        this.gender = gender;
        this.email = email;
        this.countryCode = countryCode;
        this.password = password;
        this.confirmPassword = confirmPassword;
    }

    public Long getUserId() {
        return userId;
    }

    public void setUserId(Long userId) {
        this.userId = userId;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    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;
    }

    public boolean isEnabled() {
        return enabled;
    }

    public void setEnabled(boolean enabled) {
        this.enabled = enabled;
    }

    public String getGender() {
        return gender;
    }

    public void setGender(String gender) {
        this.gender = gender;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getCountryCode() {
        return countryCode;
    }

    public void setCountryCode(String countryCode) {
        this.countryCode = countryCode;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getConfirmPassword() {
        return confirmPassword;
    }

    public void setConfirmPassword(String confirmPassword) {
        this.confirmPassword = confirmPassword;
    }
}

 

package org.o7planning.sbformvalidation.validator;

import org.apache.commons.validator.routines.EmailValidator;
import org.o7planning.sbformvalidation.dao.AppUserDAO;
import org.o7planning.sbformvalidation.formbean.AppUserForm;
import org.o7planning.sbformvalidation.model.AppUser;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.validation.Errors;
import org.springframework.validation.ValidationUtils;
import org.springframework.validation.Validator;

@Component
public class AppUserValidator implements Validator {

	// common-validator library.
	private EmailValidator emailValidator = EmailValidator.getInstance();

	@Autowired
	private AppUserDAO appUserDAO;

	// The classes are supported by this validator.
	@Override
	public boolean supports(Class<?> clazz) {
		return clazz == AppUserForm.class;
	}

	@Override
	public void validate(Object target, Errors errors) {
		AppUserForm appUserForm = (AppUserForm) target;

		// Check the fields of AppUserForm.
		ValidationUtils.rejectIfEmptyOrWhitespace(errors, "userName", "NotEmpty.appUserForm.userName");
		ValidationUtils.rejectIfEmptyOrWhitespace(errors, "firstName", "NotEmpty.appUserForm.firstName");
		ValidationUtils.rejectIfEmptyOrWhitespace(errors, "lastName", "NotEmpty.appUserForm.lastName");
		ValidationUtils.rejectIfEmptyOrWhitespace(errors, "email", "NotEmpty.appUserForm.email");
		ValidationUtils.rejectIfEmptyOrWhitespace(errors, "password", "NotEmpty.appUserForm.password");
		ValidationUtils.rejectIfEmptyOrWhitespace(errors, "confirmPassword", "NotEmpty.appUserForm.confirmPassword");
		ValidationUtils.rejectIfEmptyOrWhitespace(errors, "gender", "NotEmpty.appUserForm.gender");
		ValidationUtils.rejectIfEmptyOrWhitespace(errors, "countryCode", "NotEmpty.appUserForm.countryCode");

		if (!this.emailValidator.isValid(appUserForm.getEmail())) {
			// Invalid email.
			errors.rejectValue("email", "Pattern.appUserForm.email");
		} else if (appUserForm.getUserId() == null) {
			AppUser dbUser = appUserDAO.findAppUserByEmail(appUserForm.getEmail());
			if (dbUser != null) {
				// Email has been used by another account.
				errors.rejectValue("email", "Duplicate.appUserForm.email");
			}
		}

		if (!errors.hasFieldErrors("userName")) {
			AppUser dbUser = appUserDAO.findAppUserByUserName(appUserForm.getUserName());
			if (dbUser != null) {
				// Username is not available.
				errors.rejectValue("userName", "Duplicate.appUserForm.userName");
			}
		}

		if (!errors.hasErrors()) {
			if (!appUserForm.getConfirmPassword().equals(appUserForm.getPassword())) {
				errors.rejectValue("confirmPassword", "Match.appUserForm.confirmPassword");
			}
		}
	}

}

package org.o7planning.sbformvalidation.controller;

import java.util.List;

import org.o7planning.sbformvalidation.dao.AppUserDAO;
import org.o7planning.sbformvalidation.dao.CountryDAO;
import org.o7planning.sbformvalidation.formbean.AppUserForm;
import org.o7planning.sbformvalidation.model.AppUser;
import org.o7planning.sbformvalidation.model.Country;
import org.o7planning.sbformvalidation.validator.AppUserValidator;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
// import org.springframework.transaction.annotation.Transactional;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.InitBinder;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

@Controller
public class MainController {

   @Autowired
   private AppUserDAO appUserDAO;

   @Autowired
   private CountryDAO countryDAO;

   @Autowired
   private AppUserValidator appUserValidator;

   // Set a form validator
   @InitBinder
   protected void initBinder(WebDataBinder dataBinder) {
      // Form target
      Object target = dataBinder.getTarget();
      if (target == null) {
         return;
      }
      System.out.println("Target=" + target);

      if (target.getClass() == AppUserForm.class) {
         dataBinder.setValidator(appUserValidator);
      }
      // ...
   }

   @RequestMapping("/")
   public String viewHome(Model model) {

      return "welcomePage";
   }

   @RequestMapping("/members")
   public String viewMembers(Model model) {

      List<AppUser> list = appUserDAO.getAppUsers();

      model.addAttribute("members", list);

      return "membersPage";
   }

   @RequestMapping("/registerSuccessful")
   public String viewRegisterSuccessful(Model model) {

      return "registerSuccessfulPage";
   }

   // Show Register page.
   @RequestMapping(value = "/register", method = RequestMethod.GET)
   public String viewRegister(Model model) {

      AppUserForm form = new AppUserForm();
      List<Country> countries = countryDAO.getCountries();

      model.addAttribute("appUserForm", form);
      model.addAttribute("countries", countries);

      return "registerPage";
   }

   // This method is called to save the registration information.
   // @Validated: To ensure that this Form
   // has been Validated before this method is invoked.
   @RequestMapping(value = "/register", method = RequestMethod.POST)
   public String saveRegister(Model model, //
         @ModelAttribute("appUserForm") @Validated AppUserForm appUserForm, //
         BindingResult result, //
         final RedirectAttributes redirectAttributes) {

      // Validate result
      if (result.hasErrors()) {
         List<Country> countries = countryDAO.getCountries();
         model.addAttribute("countries", countries);
         return "registerPage";
      }
      AppUser newUser= null;
      try {
         newUser = appUserDAO.createAppUser(appUserForm);
      }
      // Other error!!
      catch (Exception e) {
         List<Country> countries = countryDAO.getCountries();
         model.addAttribute("countries", countries);
         model.addAttribute("errorMessage", "Error: " + e.getMessage());
         return "registerPage";
      }

      redirectAttributes.addFlashAttribute("flashUser", newUser);
      
      return "redirect:/registerSuccessful";
   }

}