User Registration and Form Validations

14 thoughts on “User Registration and Form Validations”

1. I have a problem. When I try to login after registration, I get an “Email or Password is invalid” error. What is the reason?

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   • There can be multiple problems:
     You need to check the logs for more details. Can you share link to your log file.
     You can check for below things:
     1. Database details are correct and MySQL is up and running.
     2. Queries are executing properly without SQL Exception.
     3. Users are already present in database, for which you are trying to login.

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2. Hello, I have a question. According to the given email, I want to write a function of returning the user object. How can I do it?

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   • Hi, I have added the source code for the same on page, you can find solution for your query in that source code. Here is the code for that.

     public boolean isUserAlreadyPresent(User user) { boolean isUserAlreadyExists = false; User existingUser = userRepository.findByEmail(user.getEmail()); // If user is found in database, then then user already exists. if(existingUser != null){ isUserAlreadyExists = true; } return isUserAlreadyExists; } /* This will get the User using email */ @Repository public interface UserRepository extends JpaRepository<User, Integer> { public User findByEmail(String email); }

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     public boolean isUserAlreadyPresent(User user) { boolean isUserAlreadyExists = false; User existingUser = userRepository.findByEmail(user.getEmail()); // If user is found in database, then then user already exists. if(existingUser != null){ isUserAlreadyExists = true; } return isUserAlreadyExists; }     /* This will get the User using email */ @Repository public interface UserRepository extends JpaRepository<User, Integer> {   public User findByEmail(String email); }

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3. Hi I am not able to open registration page , when i open registration it will redirect to login and give some error as access denied

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   • Hi, Can you check whether in SecurityConfiguration.java, you have allowed the access to register page.
     

     @Override protected void configure(HttpSecurity http) throws Exception { http.authorizeRequests() // URLs matching for access rights .antMatchers("/").permitAll() .antMatchers("/login").permitAll() .antMatchers("/register").permitAll() .antMatchers("/home/**").hasAnyAuthority("SUPER_USER", "ADMIN_USER", "SITE_USER") .antMatchers("/admin/**").hasAnyAuthority("SUPER_USER", "ADMIN_USER") .anyRequest().authenticated() .and() // form login .csrf().disable().formLogin() .loginPage("/login") .failureUrl("/login?error=true") .successHandler(sucessHandler) .usernameParameter("email") .passwordParameter("password") .and() // logout .logout() .logoutRequestMatcher(new AntPathRequestMatcher("/logout")) .logoutSuccessUrl("/").and() .exceptionHandling() .accessDeniedPage("/access-denied"); }

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     @Override protected void configure(HttpSecurity http) throws Exception {   http.authorizeRequests()   // URLs matching for access rights   .antMatchers("/").permitAll()   .antMatchers("/login").permitAll()   .antMatchers("/register").permitAll()   .antMatchers("/home/**").hasAnyAuthority("SUPER_USER", "ADMIN_USER", "SITE_USER")   .antMatchers("/admin/**").hasAnyAuthority("SUPER_USER", "ADMIN_USER")   .anyRequest().authenticated()   .and()   // form login   .csrf().disable().formLogin()   .loginPage("/login")   .failureUrl("/login?error=true")   .successHandler(sucessHandler)   .usernameParameter("email")   .passwordParameter("password")   .and()   // logout   .logout()   .logoutRequestMatcher(new AntPathRequestMatcher("/logout"))   .logoutSuccessUrl("/").and()   .exceptionHandling()   .accessDeniedPage("/access-denied"); }

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4. How to check userAlreadypresent.
   With a Boolean value.

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   • Hi, I have added source code for the assignment, you can find the solution for your query in that. Thanks for your comment, if I could help you in any way, you can subscribe to my YouTube channel. Thanks. Happy Coding.

     @Override public boolean isUserAlreadyPresent(User user) { boolean isUserAlreadyExists = false; User existingUser = userRepository.findByEmail(user.getEmail()); // If user is found in database, then then user already exists. if(existingUser != null){ isUserAlreadyExists = true; } return isUserAlreadyExists; }

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     @Override public boolean isUserAlreadyPresent(User user) {      boolean isUserAlreadyExists = false;      User existingUser = userRepository.findByEmail(user.getEmail());      // If user is found in database, then then user already exists.      if(existingUser != null){          isUserAlreadyExists = true;      }      return isUserAlreadyExists; }

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5. While register it shows some error Field ‘auth_user_id’ doesn’t have a default value

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6. I need to implement this in react js,how i can remove model and view how can i directily cross origin.

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   • You need to use rest controllers instead of controllers.

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7. where can i find the code source please ?

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8. Not able to log in. It is showing Email and password invalid

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9. I try to download the source code of this system but it response page error 404. It delete for that time ?

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