JWT工具类

原创已于 2023-09-19 17:01:28 修改 · 194 阅读

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#java #服务器 #前端

于 2023-09-19 15:25:16 首次发布

博客主要展示了Java引入依赖的代码以及测试类代码，涉及Java后端开发和前端相关的服务器内容。

引入依赖

<dependency>
    <groupId>com.auth0</groupId>
    <artifactId>java-jwt</artifactId>
    <version>3.11.0</version>
</dependency>

代码如下：

@Slf4j
public class JWTUtil{

    //签发人
    private static final String ISSUER = "issuer";
    //过期时间
    private static final long EXPIRE_TIME = 5*60*1000;
    //密钥
    private static final String SECRET_KEY = "secret_key";
    //权限变量名
    private static final String USER_NAME = "username";

    //生成token
    public static String token(String username) {
        Algorithm key = Algorithm.HMAC256(SECRET_KEY);
        Date now = new Date();
        String token = JWT.create()
                                .withIssuer(ISSUER)
                                .withIssuedAt(now)
                                .withExpiresAt(new Date(now.getTime()+EXPIRE_TIME))
                                .withClaim(USER_NAME,username)
                                .sign(key);
        log.info("generated token user={}",username);
        return token;
    }

    
    public static boolean verify(String token) {
        try{
            Algorithm key = Algorithm.HMAC256(SECRET_KEY);
            JWTVerifier verifier = JWT.require(key)
                                    .withIssuer(ISSUER)
                                    .build();
            verifier.verify(token);
            return true;
        }catch(Exception e) {
            e.printStackTrace();
        }
        return false;
    }
}

测试类如下：

@SpringBootTest
public class JWTUtilTest{
    @Test
    public void testJWTUtil() {
        String token = JWTUtil.token("userone");
        System.out.println(token);

        boolean b = JWTUtil.verify(token);
        System.out.println(b);
    }
}