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作者:互联网


// TOKEN的有效期一天(S)
private static final int TOKEN_TIME_OUT = 3_600;
// 加密KEY
private static final String TOKEN_ENCRY_KEY = "MDk4ZjZiY2Q0NjIxZDM3M2NhZGU0ZTgzMjYyN2I0ZjY";
// 最小刷新间隔(S)
private static final int REFRESH_TIME = 300;

// 生产ID
public static String getToken(Long id){
Map<String, Object> claimMaps = new HashMap<>();
claimMaps.put("id",id);
long currentTime = System.currentTimeMillis();
return Jwts.builder()
.setId(UUID.randomUUID().toString())
.setIssuedAt(new Date(currentTime)) //签发时间
.setSubject("system") //说明
.setIssuer("heima") //签发者信息
.setAudience("app") //接收用户
.compressWith(CompressionCodecs.GZIP) //数据压缩方式
.signWith(SignatureAlgorithm.HS512, generalKey()) //加密方式
.setExpiration(new Date(currentTime + TOKEN_TIME_OUT * 1000)) //过期时间戳
.addClaims(claimMaps) //cla信息
.compact();
}

/**
* 获取token中的claims信息
*
* @param token
* @return
*/
private static Jws<Claims> getJws(String token) {
return Jwts.parser()
.setSigningKey(generalKey())
.parseClaimsJws(token);
}

/**
* 获取payload body信息
*
* @param token
* @return
*/
public static Claims getClaimsBody(String token) {
try {
return getJws(token).getBody();
}catch (ExpiredJwtException e){
return null;
}
}

/**
* 获取hearder body信息
*
* @param token
* @return
*/
public static JwsHeader getHeaderBody(String token) {
return getJws(token).getHeader();
}

/**
* 是否过期
*
* @param claims
* @return -1:有效,0:有效,1:过期,2:过期
*/
public static int verifyToken(Claims claims) {
if(claims==null){
return 1;
}
try {
claims.getExpiration()
.before(new Date());
// 需要自动刷新TOKEN
if((claims.getExpiration().getTime()-System.currentTimeMillis())>REFRESH_TIME*1000){
return -1;
}else {
return 0;
}
} catch (ExpiredJwtException ex) {
return 1;
}catch (Exception e){
return 2;
}
}

/**
* 由字符串生成加密key
*
* @return
*/
public static SecretKey generalKey() {
byte[] encodedKey = Base64.getEncoder().encode(TOKEN_ENCRY_KEY.getBytes());
SecretKey key = new SecretKeySpec(encodedKey, 0, encodedKey.length, "AES");
return key;
}

public static void main(String[] args) {
/* Map map = new HashMap();
map.put("id","11");*/
System.out.println(AppJwtUtil.getToken(1102L));
Jws<Claims> jws = AppJwtUtil.getJws("eyJhbGciOiJIUzUxMiIsInppcCI6IkdaSVAifQ.H4sIAAAAAAAAADWLQQqEMAwA_5KzhURNt_qb1KZYQSi0wi6Lf9942NsMw3zh6AVW2DYmDGl2WabkZgreCaM6VXzhFBfJMcMARTqsxIG9Z888QLui3e3Tup5Pb81013KKmVzJTGo11nf9n8v4nMUaEY73DzTabjmDAAAA.4SuqQ42IGqCgBai6qd4RaVpVxTlZIWC826QA9kLvt9d-yVUw82gU47HDaSfOzgAcloZedYNNpUcd18Ne8vvjQA");
Claims claims = jws.getBody();
System.out.println(claims.get("id"));

}

标签:return,String,awt,token,static,new,claims
来源: https://www.cnblogs.com/KingAndPig/p/14072732.html