JWT身份验证:如何实现注销?
我为我的Spring启动应用程序实现了JWT身份验证。总的来说,它的工作原理如下:
- 客户端将用户名、密码发送到登录端点。
- 服务器检查提供的凭据是否有效。
- 如果不是,它将返回错误
- 如果是,它将返回一个令牌,该令牌实际上包括
- 客户端在将来的每个请求中都会发送该令牌
问题是,我们应该如何实现注销?
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Date;
class TokenAuthenticationService {
static final long EXPIRATIONTIME = 864_000_000; // 10 days
static final String SECRET = "ThisIsASecret";
static final String TOKEN_PREFIX = "Bearer";
static final String HEADER_STRING = "Authorization";
static void addAuthentication(HttpServletResponse res, String username) {
String JWT = Jwts
.builder()
.setSubject(username)
.setExpiration(
new Date(System.currentTimeMillis() + EXPIRATIONTIME))
.signWith(SignatureAlgorithm.HS512, SECRET).compact();
res.addHeader(HEADER_STRING, TOKEN_PREFIX + " " + JWT);
}
static Authentication getAuthentication(HttpServletRequest request, UserDetailsService customUserDetailsService) {
String token = request.getHeader(HEADER_STRING);
if (token != null) {
// parse the token.
Claims claims = Jwts.parser().setSigningKey(SECRET)
.parseClaimsJws(token.replace(TOKEN_PREFIX, "")).getBody();
String userName = claims.getSubject();
Date expirationTime = claims.getExpiration();
if (expirationTime.compareTo(new Date()) < 0) {
return null;
}
UserDetails user = customUserDetailsService.loadUserByUsername(userName);
return user != null ? new UsernamePasswordAuthenticationToken(user.getUsername(),
user.getPassword(), user.getAuthorities()) : null;
}
return null;
}
}
addAuthentication
由该类在登录时用于发送身份验证代码'getAuthenticationJWTAuthenticationFilter',用于筛选对端点的所有请求。JWTLoginFilter
is used by the
这里的最佳实践是什么?