JWT学习记录

官网：https://jwt.io/introduction

@Test
public void test01(){
   //HashMap map=new HashMap<>();

   Calendar instance=Calendar.getInstance();
   instance.add(Calendar.HOUR,1);

   String token = JWT.create()
   //    .withHeader(map) //header
         .withClaim("userId",21) //payload
         .withClaim("userName","良")
         .withExpiresAt(instance.getTime()) //指定令牌过期时间
         .sign(Algorithm.HMAC256("！@#￥%……")); //签名

   System.out.println(token);
}

@Test
public void test02(){
   
   //创建解码对象
   JWTVerifier jwtVerifier=JWT.require(Algorithm.HMAC256("！@#￥%……")).build();
   DecodedJWT decodedJWT=jwtVerifier.verify("eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ1c2VyTmFtZSI6IuiJryIsImV4cCI6MTYxMDUyMDQ4OSwidXNlcklkIjoyMX0.PDj4tCFn4X4ZxoPxH6Tr8jtL1Yx2GD2mi0MYEebzC4E");
   System.out.println(decodedJWT.getClaim("userId").asLong());
   System.out.println(decodedJWT.getClaim("userName").asString());
   System.out.println("过期时间："+decodedJWT.getExpiresAt());
}