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JWT令牌
老版本
package com.itheima;import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;
import org.junit.jupiter.api.Test;import java.util.Date;
import java.util.HashMap;public class JwtTest {/*** 生成JWT令牌旧版本*/@Testpublic void testGenerateJwt(){HashMap<String, Object> dataMap = new HashMap<>();dataMap.put("id",1);dataMap.put("username","admin");String jwt = Jwts.builder().signWith(SignatureAlgorithm.HS256, "aXRoZWltYQ==")//指定加密算法和密钥.addClaims(dataMap)//添加自定义信息.setExpiration(new Date(System.currentTimeMillis() + 60 * 1000))//设置过期时间.compact();//生成令牌System.out.println(jwt);}/***解析JWT令牌*/@Testpublic void testParseJWT(){String token = "eyJhbGciOiJIUzI1NiJ9.eyJpZCI6MSwidXNlcm5hbWUiOiJhZG1pbiIsImV4cCI6MTc2NDMyMjE2NH0.AlOIPixvMm1I9oMyl8bkaVTITrtvKpICIoH-xZGZbC0";Claims claims = Jwts.parser().setSigningKey("aXRoZWltYQ==")//指定密钥.parseClaimsJws(token)//解析令牌.getBody();//获取自定义信息System.out.println(claims);}
}
package com.itheima;import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;
import org.junit.jupiter.api.Test;import java.util.Date;
import java.util.HashMap;public class JwtTest {
// /**
// * 生成JWT令牌旧版本
// */
// @Test
// public void testGenerateJwt(){
// HashMap<String, Object> dataMap = new HashMap<>();
// dataMap.put("id",1);
// dataMap.put("username","admin");
//
// String jwt = Jwts.builder().signWith(SignatureAlgorithm.HS256, "aXRoZWltYQ==")//指定加密算法和密钥
// .addClaims(dataMap)//添加自定义信息
// .setExpiration(new Date(System.currentTimeMillis() + 60 * 1000))//设置过期时间
// .compact();//生成令牌
// System.out.println(jwt);
// }
// /**
// *解析JWT令牌
// */
// @Test
// public void testParseJWT(){
// String token = "eyJhbGciOiJIUzI1NiJ9.eyJpZCI6MSwidXNlcm5hbWUiOiJhZG1pbiIsImV4cCI6MTc2NDMyMjE2NH0.AlOIPixvMm1I9oMyl8bkaVTITrtvKpICIoH-xZGZbC0";
// Claims claims = Jwts.parser().setSigningKey("aXRoZWltYQ==")//指定密钥
// .parseClaimsJws(token)//解析令牌
// .getBody();//获取自定义信息
// System.out.println(claims);
// }
}
package com.itheima;import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jws;
import io.jsonwebtoken.JwtParserBuilder;
import io.jsonwebtoken.io.Decoders;
import io.jsonwebtoken.security.Keys;
import org.junit.jupiter.api.Test;
import io.jsonwebtoken.Jwts;import javax.crypto.SecretKey;
import java.security.Key;
import java.util.Date;
import java.util.HashMap;public class JwtNewTest {// 1. 复制必要的常量和辅助方法:abcdefghijklmnopqrstuvwxyz0123456789private static final String SECRET_KEY = "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXowMTIzNDU2Nzg5";private static SecretKey getSigningKey() {byte[] keyBytes = Decoders.BASE64.decode(SECRET_KEY);return Keys.hmacShaKeyFor(keyBytes);}/*** 生成JWT令牌新版本*/@Testpublic void testGenerateJwt(){HashMap<String, Object> map = new HashMap<>();map.put("id",1);map.put("username","admin");String jwt = Jwts.builder().signWith(getSigningKey())//密钥：新版的需要.claims(map)//自定义信息.expiration(new Date(System.currentTimeMillis() + 3600 * 1000)).compact();System.out.println(jwt);}@Testpublic void testParseJWT(){String token = "eyJhbGciOiJIUzI1NiJ9.eyJpZCI6MSwidXNlcm5hbWUiOiJhZG1pbiIsImV4cCI6MTc2NDMyODA0OH0.-P0YM86RPP7hTyPQ8ULO8Y-yedAbubi94G8Xs0JKcUA";Claims claims = Jwts.parser().verifyWith(getSigningKey()).build().parseSignedClaims(token)//返回 Jwt<Claims> 对象，封装了JWT令牌的完整结构.getPayload();//提取实际数据的关键步骤System.out.println(claims);}
}
package com.itheima.utils;import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.io.Decoder;
import io.jsonwebtoken.io.Decoders;
import io.jsonwebtoken.security.Keys;import javax.crypto.SecretKey;
import java.security.Key;
import java.util.Date;
import java.util.Map;import static org.yaml.snakeyaml.tokens.Token.ID.Key;public class JwtUtils {private static final String SECRET_KEY = "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXowMTIzNDU2Nzg5";private static final long EXPIPRATION = 7*24*60*60*1000;//7天public static SecretKey getSigningKey(){byte[] decode = Decoders.BASE64.decode(SECRET_KEY);return Keys.hmacShaKeyFor(decode);}/*** 生成JWT令牌* @param map* @return*/public static String generateKey(Map<String,Object>map){return Jwts.builder().signWith(getSigningKey()).claims(map).expiration(new Date(System.currentTimeMillis()+EXPIPRATION)).compact();}/*** 解析令牌* @param token* @return*/public static Claims parseToken(String token) throws Exception{return Jwts.parser().verifyWith(getSigningKey()).build().parseSignedClaims(token).getPayload();}
}