問題描述

問題:我想僅從 authenticate.getName()... 獲取/提取用戶名/電子郵件，如果可能，而不是使用解析字符串.

Problem: I would like to get/extract the username/email only from authenticate.getName()... if possible, not by using parsing the string.

authentication.getName() 或 principal.getName() 值:

[username]: org.springframework.security.core.userdetails.User@21463e7a: Username: butitoy@iyotbihagay.com; Password: [PROTECTED]; Enabled: true; AccountNonExpired: true; credentialsNonExpired: true; AccountNonLocked: true; Not granted any authorities

在本例中，我只想獲取用戶名的值，即 butitoy@iyotbihagay.com

解決方案:

由于我只想獲取用戶名/電子郵件 (butitoy@iyotbihagay.com)，并且它返回整個主要內容/文本(上圖)，因此我將我在主題中設置的值替換為主要值... 到電子郵件值.. 它現在可以工作了.

Since I only want to get the username/email (butitoy@iyotbihagay.com), and it is returning the whole principal content/text (above), I replaced the value I set in the subject from the pricipal value... to the email value.. and it works now.

@Override
protected void successfulAuthentication(HttpServletRequest req,
                                        HttpServletResponse res,
                                        FilterChain chain,
                                        Authentication auth) throws IOException, ServletException {
    String email = auth.getName();
    String principal = auth.getPrincipal().toString();
    Date expiration = new Date(System.currentTimeMillis() + SecurityConstants.EXPIRATION_TIME);
    String token = Jwts.builder()
            .setSubject(email) //from principal to email
            .setExpiration(expiration)
            .signWith(SignatureAlgorithm.HS512, SecurityConstants.SECRET.getBytes())
            .compact();
    AuthenticatedUser loginUser = new AuthenticatedUser(email);
    loginUser.setToken(token);
    String jsonUser = Util.objectToJsonResponseAsString(loginUser, "user");
    res.addHeader(SecurityConstants.HEADER_STRING, SecurityConstants.TOKEN_PREFIX + token);
    res.setContentType("application/json");
    res.setCharacterEncoding(ConstantUtil.DEFAULT_ENCODING);
    res.getWriter().write(jsonUser);
}

我現在可以使用不同的方式獲取用戶名/電子郵件值，例如你們建議的方式……甚至是我目前使用的方式.我現在不需要任何特殊的解析來從 Authentication 對象中獲取電子郵件值.

I can now get the username/email value using different ways like the one you guys are suggesting... even the one I am currently using. I do not need any special parsing now just to get the email value from the Authentication object.

在我之前使用 Spring 的非 RESTful 應用程序中...我可以使用控制器方法參數中注入的 Authentication 類輕松獲取用戶名.

On my previous non RESTful application using Spring... I can easily get the username using Authentication class injected in the controller method parameter.

控制器:

...  
public Ticket getBySwertresNo(Authentication authentication, @PathVariable String swertresNo) {  
    logger.debug("Inside getBySwertresNo: " + swertresNo);  
    System.out.println("
[username]: " + authentication.getName() + "
");  
    return m_sugalService.getSwertresInfoBySwertresNo(swertresNo);  
}  
...  

控制臺:

[username]: butitoy@iyotbihagay.com

現在，在我當前的項目中……我使用了 RESTful 方法，在成功驗證后，我返回了一個令牌，該令牌將在請求標頭中使用/注入.我可以使用令牌登錄...但是當我獲得 authentication.getName() 的值時...返回的不僅僅是電子郵件地址，它還包含一些其他信息.

Now, on my current project... I used a RESTful approach and after successful authentication, I am returning a token which will be used/injected in the request header. I can login using the token... but when I get the value of authentication.getName()... the return is not just the email address but it contains some other information.

控制臺(REST + JWT):

[username]: org.springframework.security.core.userdetails.User@21463e7a: Username: butitoy@iyotbihagay.com; Password: [PROTECTED]; Enabled: true; AccountNonExpired: true; credentialsNonExpired: true; AccountNonLocked: true; Not granted any authorities

我只想獲取用戶名值butitoy@iyotbihagay.com".

I would like to get only the username value which is "butitoy@iyotbihagay.com".

JWT 身份驗證過濾器:

public class JWTAuthenticationFilter extends UsernamePasswordAuthenticationFilter {

    private AuthenticationManager authenticationManager;

    public JWTAuthenticationFilter(AuthenticationManager authenticationManager) {
        this.authenticationManager = authenticationManager;
    }

    @Override
    public Authentication attemptAuthentication(HttpServletRequest req,
                                                HttpServletResponse res) throws AuthenticationException {
        String username = req.getParameter("username");
        String password = req.getParameter("password");
        UsernamePasswordAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(username, password);
        Authentication authentication = authenticationManager.authenticate(authenticationToken);
        return authentication;
    }

    @Override
    protected void successfulAuthentication(HttpServletRequest req,
                                            HttpServletResponse res,
                                            FilterChain chain,
                                            Authentication auth) throws IOException, ServletException {
        String email = auth.getName();
        String principal = auth.getPrincipal().toString();
        Date expiration = new Date(System.currentTimeMillis() + SecurityConstants.EXPIRATION_TIME);
        String token = Jwts.builder()
                .setSubject(principal)
                .setExpiration(expiration)
                .signWith(SignatureAlgorithm.HS512, SecurityConstants.SECRET.getBytes())
                .compact();
        AuthenticatedUser loginUser = new AuthenticatedUser(email);
        loginUser.setToken(token);
        String jsonUser = Util.objectToJsonResponseAsString(loginUser, "user");
        res.addHeader(SecurityConstants.HEADER_STRING, SecurityConstants.TOKEN_PREFIX + token);
        res.setContentType("application/json");
        res.setCharacterEncoding(ConstantUtil.DEFAULT_ENCODING);
        res.getWriter().write(jsonUser);
    }

}

JWT 授權過濾器:

public class JWTAuthorizationFilter extends BasicAuthenticationFilter {

    public JWTAuthorizationFilter(AuthenticationManager authManager) {
        super(authManager);
    }

    @Override
    protected void doFilterInternal(HttpServletRequest req,
                                    HttpServletResponse res,
                                    FilterChain chain) throws IOException, ServletException {
        String header = req.getHeader(SecurityConstants.HEADER_STRING);

        if (header == null || !header.startsWith(SecurityConstants.TOKEN_PREFIX)) {
            chain.doFilter(req, res);
            return;
        }

        UsernamePasswordAuthenticationToken authentication = getAuthentication(req);

SecurityContextHolder.getContext().setAuthentication(authentication);
        chain.doFilter(req, res);
    }

    private UsernamePasswordAuthenticationToken getAuthentication(HttpServletRequest request) {
        String token = request.getHeader(SecurityConstants.HEADER_STRING);
        if (token != null) {
            // parse the token.
            String user = Jwts.parser()
                    .setSigningKey(SecurityConstants.SECRET.getBytes())
                    .parseClaimsJws(token.replace(SecurityConstants.TOKEN_PREFIX, ""))
                    .getBody()
                    .getSubject();

            if (user != null) {
                return new UsernamePasswordAuthenticationToken(user, null, new ArrayList<>());
            }
            return null;
        }
        return null;
    }

}

推薦答案

我認為你可以在類型的注入控制器參數中使用 authentication.getName 和 principal.getName身份驗證和Principal:

I think you can use authentication.getName and principal.getName in the injected controller argument of type Authentication and Principal:

@Controller
@RequestMapping("/info")
public class GetNameController {

    @RequestMapping(value = "/name", method = RequestMethod.GET)
    public String getName(Authentication authentication, Principal principal) {
        System.out.println(authentication.getName());
        System.out.println("-----------------");
        System.out.println(principal.getName());
        return "";
    }
}

可以生產

admin
-----------------
admin

這篇關于Springboot通過Controller從Authentication獲取用戶名的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！