Spring Boot PasswordEncoder: encode() Method Guide

2 years ago
Olivia Parker
1 minute

In Spring Boot, you can use an implementation of the PasswordEncoder interface to perform encoding operations. Usually, you can inject the PasswordEncoder implementation into the application using the @Bean annotation, and then call the encode method of the PasswordEncoder where encryption is needed. Here is an example code:

Firstly, the implementation class of the password encoder needs to be configured in the application.properties file, for example, BCryptPasswordEncoder.

spring.security.user.passwordEncoder=bcrypt

Next, inject the implementation class of PasswordEncoder in the configuration class.

@Configuration
public class PasswordEncoderConfig {
    
    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }
}

Finally, call the encode method of PasswordEncoder to encrypt the password where necessary.

@Autowired
private PasswordEncoder passwordEncoder;

public void encryptPassword(String password) {
    String encryptedPassword = passwordEncoder.encode(password);
    System.out.println("Encrypted password: " + encryptedPassword);
}

This way, you can use the PasswordEncoder implementation class in Spring Boot to encrypt passwords.

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