java - JWT 集成

• • 导入坐标
  • 生成token

    io.jsonwebtoken
    jjwt
    0.9.1

@Test
    public void test2(){
        //添加构成JWT的参数
        Map headMap = new HashMap();
        headMap.put("alg", SignatureAlgorithm.HS256.getValue());//使用HS256签名算法
        headMap.put("typ", "JWT");

        Map body = new HashMap();
        body.put("userId","1");
        body.put("username","xiaoming");
        body.put("role","admin");

        String jwt = Jwts.builder()
                        .setHeader(headMap)
                        .setClaims(body)
                        .setId("jwt001")
            			.signWith(SignatureAlgorithm.HS256,"smallmq")
            			.compact();
        System.out.println(jwt);

        //解析jwt
        Jwt result = Jwts.parser().setSigningKey("smallmq").parse(jwt);
        Object jwtBody = result.getBody();
        Header header = result.getHeader();

        System.out.println(result);
        System.out.println(jwtBody);
        System.out.println(header);
    }