How to use jwt in springboot

java spring-boot jwt

• what is jwt
  • jwt (json token token), s a standard that is mostly used for securing REST APIs.
  • how to sign a toke
    • JWTs can be signed using a secret (with the HMAC algorithm) or a public/private key pair using RSA or ECDSA.
    • the structure of jwt
      • jwt token is componented by the following three parts (always like xxx.xxx.xxx)
        • header, tell the service the type of the token and the encoding algorithm

          {
            "alg": "HS256",
            "typ": "JWT"
          }

        • payload
          • different claim
            • Registered claims: issuer, expiration time, subject
            • Public claims: name
            • Private claims:
        • signature
          • to encode the header, payload and secret
• why we use jwt
  • authentication
  • authorization
• how to use jwt token
  • the framework of jwt usage
    
  • code implementation
    

source code