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1. 添加依赖
<!-- jwt加密工具类 -->
<dependency>
<groupId>io.jsonwebtoken</groupId>
<artifactId>jjwt</artifactId>
<version>0.9.1</version>
</dependency>
2. java代码
import io.jsonwebtoken.*;
import javax.crypto.spec.SecretKeySpec;
import javax.xml.bind.DatatypeConverter;
import java.security.Key;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
/**
* @author pibigstar
* @create 2018-12-13 15:32
* @desc token工具类
**/
public class TokenUtil {
private static final String SECRET = "rgsnsm#ldyh*ws%l&hdpmnmw@xyhndes";//私密key
private static final Long TTL_EXPIRATION = 1000L * 60 * 30; //过期时间30分钟
private static final String ISSUER = "pibigstar";//发行人
/**
* 加密信息,生成token
*/
public static String creatToken(Map<String,Object> params) {
SignatureAlgorithm signature = SignatureAlgorithm.HS256;
byte[] secretBytes = DatatypeConverter.parseBase64Binary(SECRET);
Key secretKey = new SecretKeySpec(secretBytes, signature.getJcaName());
Long expiration = System.currentTimeMillis() + TTL_EXPIRATION;
JwtBuilder builder = Jwts.builder()
.setIssuedAt(new Date())
.setExpiration(new Date(expiration))
.setIssuer(ISSUER)
.setClaims(params)
.signWith(signature,secretKey);
return builder.compact();
}
/**
* 解析token
*/
public static Map<String, Object> parseToken(String token) {
Claims claims = null;
try {
claims = Jwts.parser().setSigningKey(DatatypeConverter.parseBase64Binary(SECRET))
.parseClaimsJws(token).getBody();
} catch (SignatureException | MalformedJwtException e){
System.out.println("token解析失败");
} catch (ExpiredJwtException e) {
System.out.println("token已过期");
}
return claims;
}
}
3. 测试
public static void main(String[] args){
Map<String,Object> map = new HashMap<>();
map.put("pibigstar","测试");
String token = creatToken(map);
System.out.println("token:" + token);
Map<String, Object> result = parseToken(token);
System.out.println(result.get("pibigstar"));
}