旗开得胜

src/main/java/com/greenorange/promotion/utils/JWTUtils.java

@@ -0,0 +1,40 @@
+package com.greenorange.promotion.utils;
+
+import com.auth0.jwt.JWT;
+import com.auth0.jwt.JWTCreator;
+import com.auth0.jwt.algorithms.Algorithm;
+import com.auth0.jwt.interfaces.DecodedJWT;
+
+import java.util.Calendar;
+import java.util.Map;
+
+public class JWTUtils {
+
+    /**
+     * 生成token  header.payload.signature
+     */
+    private static final String SECRET = "qingcheng";
+
+    public static String getToken(Map<String, String> map) {
+
+        Calendar instance = Calendar.getInstance();
+        // 默认7天过期
+        instance.add(Calendar.DATE, 7);
+
+        //创建jwt builder
+        JWTCreator.Builder builder = JWT.create();
+
+        // payload
+        map.forEach(builder::withClaim);
+        return builder.withExpiresAt(instance.getTime())  //指定令牌过期时间
+                .sign(Algorithm.HMAC256(SECRET));
+    }
+
+    /**
+     * 验证token  合法性
+     */
+    public static DecodedJWT verify(String token) {
+        return JWT.require(Algorithm.HMAC256(SECRET)).build().verify(token);
+    }
+}
+