(GGG)JWT

Official website:JSON Web Tokens- jwt.io

Link with . 

Encrypted by the JWT header

The authentication information json data used by JWT is encrypted and obtained

Encrypted by A and B, it is the verification part

Import dependencies

io.jsonwebtokenjjwt0.9.1

Generate token and set expiration time

 @Testvoid JwtTest() {//generate token//1, prepare dataMap map = new HashMap();map.put("id",123);map.put("name","rang rang");/ / According to the current system change the time to set the expiration time laterlong now = System.currentTimeMillis();//2. Use the tool class of JWT to generate tokenString token = Jwts.builder().signWith(SignatureAlgorithm.HS512, "rang rang 01") //Specify the encryption algorithm.setClaims(map) //Write data.setExpiration(new Date(now + 390000)) //Expiration time.compact();System.out.println(token);}

Parse

 @Testpublic void parseTest(){try{String token ="eyJhbGciOiJIUzUxMiJ9.eyJuYW1lIjoicmFuZyByYW5nIiwiaWQiOjEyMywiZXhwIjoxNjU4OTAwODQxfQ.LYLQGfxCwNVbM3Jl_021B1KO78S1785XE9bgd8gknyVMDmGyqsJqsFeSpsf7NhppqPfYy8QxeeEN222pm9v5uw";Claims body = Jwts.parser().setSigningKey("rang rang 01").parseClaimsJws(token).getBody();Object id = body.get("id");Object name = body.get("name");System.out.println(id);System.out.println(name);}catch (ExpiredJwtException e) {System.out.println("token expired");}catch(SignatureException e) {System.out.println("token is invalid");}}

JWT Detailed Explanation Detailed URL of the boss, self-fetching