spring boot 集成jwt_java

版本说明

Spring Boot 版本：2.6.1
redis 版本：6.2.6
jwt 版本：0.6.0
redisson 版本：3.13.6

创建拦截器配置

除了/token开头的地址都拦截

@Configuration
public class InterceptorConfiguration extends WebMvcConfigurationSupport {

    @Autowired
    private TokenHandlerInterceptor tokenHandlerInterceptor;

    @Override
    protected void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(tokenHandlerInterceptor)
                .addPathPatterns("/**")
                .excludePathPatterns("/token/**");
        super.addInterceptors(registry);
    }
}

拦截器验证token

@Configuration
public class TokenHandlerInterceptor implements HandlerInterceptor {

    private static final Logger log = LoggerFactory.getLogger(TokenHandlerInterceptor.class);

    @Autowired
    private JwtService jwtService;

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        try {
            boolean flag = jwtService.verificationToken(request);
            if(!flag) {
                responseMessage("token无效或过期", response);
            }
            return flag;
        } catch (Exception e) {
            responseMessage(e.getMessage(), response);
        }
        return false;
    }

    private void responseMessage(String message, HttpServletResponse response) {
        try (
            OutputStream os = response.getOutputStream();
        ) {
            os.write(message.getBytes(StandardCharsets.UTF_8));
        } catch (Exception e2) {
            log.error("write message error:", e2);
        }
    }
}

jwt接口

public interface JwtService {

    /**
     * 申请token
     * @param name 用户名
     * @param secretKey 密匙
     * @param time 有效期
     * @return
     */
    String tokenApply(String name, String secretKey, long time);

    /**
     * 验证token
     * @param token
     * @return
     */
    boolean verificationToken(String token) throws Exception;

    /**
     * 验证token
     * @param request
     * @return
     */
    boolean verificationToken(HttpServletRequest request) throws Exception;

    /**
     * 续期
     * @param oldToken
     * @param name 用户名
     * @param time
     * @return
     */
    String renewal(String oldToken, String name, long time);
}

jwt实现

@Service
public class JwtServiceImpl implements JwtService {

    private static final Logger log = LoggerFactory.getLogger(JwtServiceImpl.class);

    @Value("${jwt.secret}")
    private String jwtSecret;

    @Autowired
    private RedissonClient redisson;

    // 默认过期时间30天
    private long jwtDefaultExpire = 1000L * 60 * 60 * 24 * 30;

    @Override
    public String tokenApply(String name, String secretKey, long time) {
        long expire = time < 1 ? jwtDefaultExpire:time;
        String jwtToken = Jwts.builder()
                .setHeaderParam("typ", "JWT")
                .setHeaderParam("alg", "HS256")
                .setSubject("app")
                .setIssuedAt(new Date())
                //设置过期时间
                .setExpiration(new Date(System.currentTimeMillis() + expire))
                .claim("user", name)
                .signWith(SignatureAlgorithm.HS256, jwtSecret)
                .compact();
        redisson.getBucket(secretKey).set(jwtToken);
        redisson.getBucket(secretKey).expire(expire, TimeUnit.MILLISECONDS);
        return jwtToken;
    }

    @Override
    public boolean verificationToken(String token) throws Exception {
        return checkToken(token);
    }

    @Override
    public boolean verificationToken(HttpServletRequest request) throws Exception {
        return checkToken(request.getHeader("secret_key"))
                || checkToken(request.getHeader("access_token"))
                || checkToken(request.getHeader("token"));
    }

    @Override
    public String renewal(String secretKey, String name, long time) {
        Object oldToken = redisson.getBucket(secretKey).get();
        Assert.isTrue(null != oldToken, "请先申请密匙");
        Claims claims = decryptToken(oldToken.toString());
        if(null == claims) {
            // token过期，直接重新申请
            return tokenApply(name, secretKey, time);
        }
        return tokenApply(name,
                secretKey,
                claims.getExpiration().getTime() - System.currentTimeMillis() + (time < 1 ? jwtDefaultExpire:time));
    }

    private boolean checkToken(String secretKeys) throws Exception {
        if(null == secretKeys) return false;
        Object data = redisson.getBucket(secretKeys).get();
        Assert.isTrue(null != data, "密匙不存在或者已过期");
        try {
            Jws<Claims> claimsJws = Jwts.parser().setSigningKey(jwtSecret).parseClaimsJws(data.toString());
        } catch (ExpiredJwtException e) {
            throw new Exception("密匙过期或无效");
        }
        return true;
    }

    private Claims decryptToken(String token) {
        try {
            Jws<Claims> claimsJws = Jwts.parser().setSigningKey(jwtSecret).parseClaimsJws(token);
            return claimsJws.getBody();
        } catch (ExpiredJwtException e) {
            log.error("Jwts.parser error:", e);
        }
        return null;
    }
}

申请token

@RestController
@RequestMapping("/token")
public class JwtTokenController {

    @Autowired
    private JwtService jwtService;

    @Autowired
    private RedissonClient redisson;

    /**
     * 密匙申请
     * @param name 用户名
     * @param time 有效期，毫秒值
     * @return 返回密匙
     */
    @PostMapping("/secretKeyApply")
    public String secretKeyApply(@RequestParam String name, Long time) {
        String secretKey = UUID.randomUUID().toString();
        jwtService.tokenApply(name, secretKey, null == time ? -1:time.longValue());
        return secretKey;
    }

    /**
     * 续期
     * @param secretKey 密匙
     * @param name 用户名
     * @param time 续期时间
     * @return
     */
    @PostMapping("/renewal")
    public boolean renewal(@RequestParam String secretKey, @RequestParam String name, Long time) {
        Assert.isTrue(null != secretKey, "密匙不能为空");
        jwtService.renewal(secretKey, name, time);
        return true;
    }

    /**
     * 废除密匙
     * @param secretKey
     * @return
     */
    @PostMapping("/abolish")
    public boolean abolish(@RequestParam String secretKey) {
        Assert.isTrue(null != secretKey, "密匙不能为空");
        redisson.getBucket(secretKey).delete();
        return true;
    }
}

properties配置文件

redis.address=127.0.0.1:6379
redis.password=密码
jwt.secret=随机字符串

至此jwt校验就完成了

测试代码

@RestController
@RequestMapping("/test")
public class TestJwtController {

    @PostMapping("/testjwt")
    public String testJwt() {
        return "verification token success";
    }
}