JWT-生成和校验Token

JwtTokenService

@Service
@RequiredArgsConstructor
public class JwtTokenService {
    public static final long EXPIRATION_TIME = 3_600_000;
    private final Key key = Keys.secretKeyFor(SignatureAlgorithm.HS256);

    public Date getExpiration(long expirationTime) {
        return new Date(new Date().getTime() + expirationTime);
    }

    public String createToken(String userid, Date expiration) {
        return Jwts.builder()
                .setSubject(userid)
                .signWith(key)
                .setExpiration(expiration)
                .compact();

    }

    public String createDefaultToken(String userid) {
        return createToken(userid, getExpiration(EXPIRATION_TIME));
    }

    public String validateToken(String token) {
        try {
            return Jwts.parserBuilder()
                    .setSigningKey(key).build()
                    .parseClaimsJws(token)
                    .getBody()
                    .getSubject();
        } catch (Exception e) {
            return null;
        }
    }

}

JwtTokenServiceTest

@Slf4j
@SpringBootTest
class JwtTokenServiceTest {
    @Autowired
    public JwtTokenService jwtTokenService;

    @Test
    public void token() {
        String token = jwtTokenService.createDefaultToken("userid");
        log.info(token);
        String userid = jwtTokenService.validateToken(token);
        log.info(userid);
    }

}

---

pom.xml

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>3.0.6</version>
</parent>

<properties>
    <maven.compiler.source>20</maven.compiler.source>
    <maven.compiler.target>20</maven.compiler.target>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <springboot.version>3.0.6</springboot.version>
    <lombok.version>1.18.26</lombok.version>
    <jjwt.version>0.11.5</jjwt.version>
    <junit.version>5.10.0-M1</junit.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-security</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.junit.jupiter</groupId>
        <artifactId>junit-jupiter-api</artifactId>
        <version>${junit.version}</version>
        <scope>test</scope>
    </dependency>

    <dependency>
        <groupId>io.jsonwebtoken</groupId>
        <artifactId>jjwt-api</artifactId>
        <version>${jjwt.version}</version>
    </dependency>
    <dependency>
        <groupId>io.jsonwebtoken</groupId>
        <artifactId>jjwt-impl</artifactId>
        <version>${jjwt.version}</version>
    </dependency>
    <dependency>
        <groupId>io.jsonwebtoken</groupId>
        <artifactId>jjwt-jackson</artifactId>
        <version>${jjwt.version}</version>
    </dependency>

    <dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
        <version>${lombok.version}</version>
        <scope>provided</scope>
    </dependency>
</dependencies>

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-dependencies</artifactId>
            <version>${springboot.version}</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>