相关疑难解决方法(0)

我需要将我的图像转换为base64字符串,以便我可以将我的图像发送到服务器.这个有没有js文件......？否则如何转换它

我正在尝试在用户注册后发送确认电子邮件.我正在使用JavaMail库和Java 8 Base64 util类.

我正在以下列方式编码用户电子邮件:

byte[] encodedEmail = Base64.getUrlEncoder().encode(user.getEmail().getBytes(StandardCharsets.UTF_8));
Multipart multipart = new MimeMultipart();
InternetHeaders headers = new InternetHeaders();
headers.addHeader("Content-type", "text/html; charset=UTF-8");
String confirmLink = "Complete your registration by clicking on following"+ "\n<a href='" + confirmationURL + encodedEmail + "'>link</a>";
MimeBodyPart link = new MimeBodyPart(headers,
confirmLink.getBytes("UTF-8"));
multipart.addBodyPart(link);

在哪里confirmationURL:

private final static String confirmationURL = "http://localhost:8080/project/controller?command=confirmRegistration&ID=";

然后以这种方式在ConfirmRegistrationCommand中对此进行解码:

    String encryptedEmail = request.getParameter("ID");

    String decodedEmail = new String(Base64.getUrlDecoder().decode(encryptedEmail), StandardCharsets.UTF_8);

    RepositoryFactory repositoryFactory = RepositoryFactory
            .getFactoryByName(FactoryType.MYSQL_REPOSITORY_FACTORY);
    UserRepository userRepository = repositoryFactory.getUserRepository();
    User user = …