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JWT 工具类
import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;
import net.xdclass.xdvideo.domain.User;
import java.util.Date;
/**
* jwt工具类
*/
public class JwtUtils {
public static final String SUBJECT = "xdclass";
public static final long EXPIRE = 1000*60*60*24*7; //过期时间,毫秒,一周
//秘钥
public static final String APPSECRET = "xd666";
/**
* 生成jwt
* @param user
* @return
*/
public static String geneJsonWebToken(User user){
if(user == null || user.getId() == null || user.getName() == null
|| user.getHeadImg()==null){
return null;
}
String token = Jwts.builder().setSubject(SUBJECT)
.claim("id",user.getId())
.claim("name",user.getName())
.claim("img",user.getHeadImg())
.setIssuedAt(new Date())
.setExpiration(new Date(System.currentTimeMillis()+EXPIRE))
.signWith(SignatureAlgorithm.HS256,APPSECRET).compact();
return token;
}
/**
* 校验token
* @param token
* @return
*/
public static Claims checkJWT(String token ){
try{
final Claims claims = Jwts.parser().setSigningKey(APPSECRET).
parseClaimsJws(token).getBody();
return claims;
}catch (Exception e){ }
return null;
}
}
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