jwt令牌的生成

jwt生成

/*
    jwt令牌的生成
*/
    @Test
    public void testGenjwt(){
        Map<String,Object> claims=new HashMap<>();
        claims.put("id",1);
        claims.put("name","tom");
        String jwt= Jwts.builder()
                .signWith(SignatureAlgorithm.HS256,"luo9")
                .setClaims(claims)
                .setExpiration(new Date(System.currentTimeMillis()+3600*1000))
                .compact();
        System.out.println(jwt);
    }
}

jwt的解析

/*
    jwt令牌的解析
*/
    @Test
    public void testParseJwt(){
        Claims luo9 = Jwts.parser()
                .setSigningKey("luo9")
                .parseClaimsJws("eyJhbGciOiJIUzI1NiJ9.eyJuYW1lIjoidG9tIiwiaWQiOjEsImV4cCI6MTcwNTI5MDEwM30.9so4ji6psjP9y897AELYB0jnl8_ns5zenvqNqoCh5Zo")
                .getBody();
        System.out.println(luo9);
    }

jwt的工具类

package com.itheima.utils;
import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;
import java.util.Date;
import java.util.Map;
public class JwtUtils {
    private static String signKey="luo9";
    private static Long expire=43200000L;
    public static String generateJwt(Map<String,Object> claims){
        String jwt= Jwts.builder()
                .addClaims(claims)
                .signWith(SignatureAlgorithm.HS256,signKey)
                .setClaims(claims)
                .setExpiration(new Date(System.currentTimeMillis()+expire))
                .compact();
        return jwt;
    }
    public static Claims parseJwt(String jwt){
        Claims claims=Jwts.parser()
                .setSigningKey(signKey)
                .parseClaimsJws(jwt)
                .getBody();
        return claims;
    }
}