java

jar包

封装工具类

public class jwtTool {

public static final String secretKey = "askjdksadjkasdakjshdjkasdkAakjshdjasdjs";

public String getJWTWithHMAC256(String subject, String secretKey){

//指定JWT所使?用的签名算法

Algorithm algorithm = Algorithm.HMAC256(secretKey);

String token = JWT.create()//创建token

.withIssuer("com.kkb")//指定签发?人

.withSubject(subject)//指定主体数据

.withExpiresAt(new Date(new Date().getTime()+(1000*20)))

.sign(algorithm);//最终?生成 token

return token;

}

public boolean verifyTokenWithHMAC256(String token,String secretKey){

try{

Algorithm algorithm = Algorithm.HMAC256(secretKey);

JWTVerifier verifier = JWT.require(algorithm)

.withIssuer("com.kkb")

.build();

verifier.verify(token);

return true;

}catch (JWTVerificationException e){

e.printStackTrace();

return false;

}

}

}

DecodedJWT decode = JWT.decode(token);

System.out.println(decode.getSignature());

System.out.println(decode.getSubject());

System.out.println(decode.getExpiresAt());