add

qiaoba-auth/src/main/java/com/qiaoba/auth/utils/TokenUtil.java

@@ -0,0 +1,70 @@
+package com.qiaoba.auth.utils;
+
+import cn.hutool.core.date.DateField;
+import cn.hutool.core.date.DateTime;
+import cn.hutool.jwt.JWTPayload;
+import cn.hutool.jwt.JWTUtil;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * TokenUtil
+ *
+ * @author ailanyin
+ * @version 1.0
+ * @since 2022/6/8 0008 上午 11:44
+ */
+public class TokenUtil {
+
+
+    /**
+     * jwt 加解密密钥,第一次项目启动时创建随机数
+     */
+    public static String secret;
+
+
+    public static String generateToken(String username) {
+        DateTime now = DateTime.now();
+        // 3天过期
+        DateTime newTime = now.offsetNew(DateField.HOUR, 72);
+
+        Map<String, Object> payload = new HashMap<String, Object>(4);
+        //签发时间
+        payload.put(JWTPayload.ISSUED_AT, now);
+        //过期时间
+        payload.put(JWTPayload.EXPIRES_AT, newTime);
+        //生效时间
+        payload.put(JWTPayload.NOT_BEFORE, now);
+        //载荷
+        payload.put(JWTPayload.SUBJECT, username);
+
+        return JWTUtil.createToken(payload, secret.getBytes());
+    }
+
+    public static String getUserNameFromToken(String token) {
+        try {
+            return JWTUtil.parseToken(token).getPayload(JWTPayload.SUBJECT).toString();
+        } catch (Exception e) {
+            return null;
+        }
+    }
+
+    /**
+     * 验证Token是否有效
+     *
+     * @param token token
+     * @return 是/否
+     */
+    public static boolean validateToken(String token) {
+        try {
+            if (!JWTUtil.verify(token, secret.getBytes())) {
+                return false;
+            }
+            long expireTime = Long.parseLong(JWTUtil.parseToken(token).getPayload(JWTPayload.EXPIRES_AT).toString() + "000");
+            return new DateTime(expireTime).after(DateTime.now());
+        } catch (Exception e) {
+            return false;
+        }
+    }
+}