1.导入依赖
<!-- JWT--> <dependency> <groupId>io.jsonwebtoken</groupId> <artifactId>jjwt</artifactId> </dependency>
2.工具类
import io.jsonwebtoken.Claims; import io.jsonwebtoken.Jws; import io.jsonwebtoken.Jwts; import io.jsonwebtoken.SignatureAlgorithm; import org.springframework.http.server.reactive.ServerHttpRequest; import org.springframework.util.StringUtils; import javax.servlet.http.HttpServletRequest; import java.util.Date; public class JwtUtils { public static final long EXPIRE = 1000 * 60 * 60 * 24; public static final String APP_SECRET = "ukc8BDbRigUDaY6pZFfWus2jZWLPHO"; public static String getJwtToken(String id, String nickname){ String JwtToken = Jwts.builder() .setHeaderParam("typ", "JWT") .setHeaderParam("alg", "HS256") .setSubject("guli-user") .setIssuedAt(new Date()) .setExpiration(new Date(System.currentTimeMillis() + EXPIRE)) .claim("id", id) .claim("nickname", nickname) .signWith(SignatureAlgorithm.HS256, APP_SECRET) .compact(); return JwtToken; } /** * 判断token是否存在与有效 * @param jwtToken * @return */ public static boolean checkToken(String jwtToken) { if(StringUtils.isEmpty(jwtToken)) return false; try { Jwts.parser().setSigningKey(APP_SECRET).parseClaimsJws(jwtToken); } catch (Exception e) { e.printStackTrace(); return false; } return true; } /** * 判断token是否存在与有效 * @param request * @return */ public static boolean checkToken(HttpServletRequest request) { try { String jwtToken = request.getHeader("token"); if(StringUtils.isEmpty(jwtToken)) return false; Jwts.parser().setSigningKey(APP_SECRET).parseClaimsJws(jwtToken); } catch (Exception e) { e.printStackTrace(); return false; } return true; } /** * 根据token获取会员id * @param request * @return */ public static String getMemberIdByJwtToken(HttpServletRequest request) { String jwtToken = request.getHeader("token"); if(StringUtils.isEmpty(jwtToken)) return ""; Jws<Claims> claimsJws = Jwts.parser().setSigningKey(APP_SECRET).parseClaimsJws(jwtToken); Claims claims = claimsJws.getBody(); return (String)claims.get("id"); } }