public classJwtUtils {/*** 密钥*/

private static final String SECRET="xxxx";/*** 默认字段key:exp*/

private static final String EXP="exp";/*** 默认字段key:payload*/

private static final String PAYLOAD="payload";/*** 加密

*@paramobject 加密数据

*@parammaxTime 有效期(毫秒数)

*@param

*@return

*/

public static String encode(T object,longmaxTime){try{final JWTSigner signer=newJWTSigner(SECRET);final Map data=new HashMap<>(10);

ObjectMapper objectMapper=newObjectMapper();

String jsonString=objectMapper.writeValueAsString(object);

data.put(PAYLOAD,jsonString);

data.put(EXP,System.currentTimeMillis()+maxTime);returnsigner.sign(data);

}catch(IOException e) {

e.printStackTrace();return null;

}

}/*** 数据解密

*@paramjwt 解密数据

*@paramtClass 解密类型

*@param

*@return

*/

public static T decode(String jwt,ClasstClass) {final JWTVerifier jwtVerifier = newJWTVerifier(SECRET);try{final Map data =jwtVerifier.verify(jwt);//判断数据是否超时或者符合标准

if (data.containsKey(EXP) &&data.containsKey(PAYLOAD)) {long exp = (long) data.get(EXP);long currentTimeMillis =System.currentTimeMillis();if (exp >currentTimeMillis) {

String json=(String) data.get(PAYLOAD);

ObjectMapper objectMapper= newObjectMapper();returnobjectMapper.readValue(json, tClass);

}

}return null;

}catch(Exception e) {//e.printStackTrace();

return null;

}

}//解密token取出userId

public static T updateDecode(String jwt,ClasstClass){final JWTVerifier jwtVerifier = newJWTVerifier(SECRET);try{final Map data =jwtVerifier.verify(jwt);

String json=(String) data.get(PAYLOAD);

ObjectMapper objectMapper= newObjectMapper();returnobjectMapper.readValue(json, tClass);

}catch(Exception e) {//e.printStackTrace();

return null;

}

}public static void main(String[] args) throwsInterruptedException {//有效期10秒//加密：//TestCenterAdministratorsVO test = new TestCenterAdministratorsVO();//test.setId(1L);//test.setLoginName("sa");//String token=encode(test,1000000);//System.out.println("TOKEN======="+token);// //Thread.sleep(10000);解密//TestCenterAdministratorsVO user=decode(token,TestCenterAdministratorsVO.class);//System.out.println(user.getId()+user.getLoginName());//removeDecode("eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJleHAiOjE1NDcwODkwNTYxNDgsInBheWxvYWQiOiJ7XCJpZFwiOjEsXCJuYW1lXCI6bnVsbCxcInBob25lTnVtYmVyXCI6bnVsbCxcImxvZ2luTmFtZVwiOlwic2FcIixcInNlcmlhbE51bWJlclwiOm51bGwsXCJ0eXBlXCI6bnVsbCxcInRlc3RDZW50ZXJJZFwiOm51bGwsXCJvcmdhbml6YXRpb25JZFwiOm51bGwsXCJtYWluU2l0ZUFkbWluXCI6ZmFsc2UsXCJhZG1pblwiOmZhbHNlLFwib3JnYW5pemF0aW9uTmFtZVwiOm51bGx9In0.FgYm4wSDhkZukqlRukjwvxQ1BM746AWQfCmGucMP3pc");

updateDecode("eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJleHAiOjE1NDcwMTgxNTU4OTYsInBheWxvYWQiOiJ7XCJpZFwiOjIwMTAwMDAzMyxcIm5hbWVcIjpcIuW6numTtuaYjFwiLFwicGhvbmVOdW1iZXJcIjpudWxsLFwibG9naW5OYW1lXCI6XCJwYW5neWluY2hhbmdcIixcInNlcmlhbE51bWJlclwiOm51bGwsXCJ0eXBlXCI6XCJNQUlOU0lURUFETUlOXCIsXCJ0ZXN0Q2VudGVySWRcIjo3OSxcIm9yZ2FuaXphdGlvbklkXCI6XCIwMDFcIixcIm1haW5TaXRlQWRtaW5cIjp0cnVlLFwiYWRtaW5cIjpmYWxzZSxcIm9yZ2FuaXphdGlvbk5hbWVcIjpudWxsfSJ9.yrYlU4djPPQyu1mneQgkVgLCEQiJ2pKkyX8EVw0NcY8",TestCenterAdministratorsVO.class);

}

}