ruby on rails and android: JWT在这里是如何工作的

gem 'jwt'

# 生成JWT
payload = { user_id: 1 }
secret_key = 'your_secret_key'
token = JWT.encode(payload, secret_key, 'HS256')

# 验证JWT
decoded_token = JWT.decode(token, secret_key, true, { algorithm: 'HS256' })
user_id = decoded_token[0]['user_id']

implementation 'io.jsonwebtoken:jjwt-api:0.11.2'
implementation 'io.jsonwebtoken:jjwt-impl:0.11.2'
implementation 'io.jsonwebtoken:jjwt-jackson:0.11.2'

import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;

// 生成JWT
String secretKey = "your_secret_key";
String token = Jwts.builder()
        .claim("user_id", 1)
        .signWith(SignatureAlgorithm.HS256, secretKey)
        .compact();

// 验证JWT
Claims claims = Jwts.parser()
        .setSigningKey(secretKey)
        .parseClaimsJws(token)
        .getBody();
int userId = claims.get("user_id", Integer.class);