Java：java-jwt实现JsonWebToken

文档：https://github.com/auth0/java-jwt

依赖

com.auth0 java-jwt 3.4.0

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代码示例

package com.mouday; import com.auth0.jwt.JWT; import com.auth0.jwt.JWTVerifier; import com.auth0.jwt.Algorithms.Algorithm; import com.auth0.jwt.interfaces.Claim; import com.auth0.jwt.interfaces.DecodedJWT; import org.junit.jupiter.api.Test; import java.util.Date; import java.util.Map; public class JwtDemo { //过期时间 120秒后 private long expire = 120; // 秘钥 private String secret = "123456"; @Test public void createJwt() { Date now = new Date(); Date expireDate = new Date(now.getTime() + expire * 1000); Algorithm algorithm = Algorithm.HMAC256(secret); String token = JWT.create() .withClaim("id", 12) // 增加Payload数据 .withExpiresAt(expireDate) // 过期时间 .sign(algorithm); System.out.println(token); } @Test public void decodeJwt() { String token = "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6MTIsImV4cCI6MTYwNzg3MjM5NH0.J5ih6dffc7z3D2ckYDCe61JuhsQJLXjQuDIUGMip94s"; DecodedJWT jwt = JWT.decode(token); System.out.println(jwt.getToken()); System.out.println(jwt.getHeader()); System.out.println(jwt.getPayload()); System.out.println(jwt.getSignature()); // 获取Payload中的数据 Map claims = jwt.getClaims(); //Key is the Claim name Integer id = claims.get("id").asInt(); System.out.println(id); } @Test public void verifyJwt() { String token = "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6MTIsImV4cCI6MTYwNzg3MjM5NH0.J5ih6dffc7z3D2ckYDCe61JuhsQJLXjQuDIUGMip94s"; Algorithm algorithm = Algorithm.HMAC256(secret); JWTVerifier verifier = JWT.require(algorithm).build(); //Reusable verifier instance try { verifier.verify(token); System.out.println("验证成功"); } catch (Exception e) { e.printStackTrace(); } } }

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Java

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