下面列出了怎么用io.jsonwebtoken.impl.crypto.MacProvider的API类实例代码及写法，或者点击链接到github查看源代码。
public Map<String, String> refreshSecrets() {
SecretKey key = MacProvider.generateKey(SignatureAlgorithm.HS256);
secrets.put(SignatureAlgorithm.HS256.getValue(), TextCodec.BASE64.encode(key.getEncoded()));
key = MacProvider.generateKey(SignatureAlgorithm.HS384);
secrets.put(SignatureAlgorithm.HS384.getValue(), TextCodec.BASE64.encode(key.getEncoded()));
key = MacProvider.generateKey(SignatureAlgorithm.HS512);
secrets.put(SignatureAlgorithm.HS512.getValue(), TextCodec.BASE64.encode(key.getEncoded()));
return secrets;
}
private static Key createSecretKey() {
return MacProvider.generateKey();
}