任务三

pkg/jwt/jwt.go

@@ -120,3 +120,16 @@ func (j *JWT) CreateTokenByOldToken(oldToken string, oldClaims CustomClaims) (st
 	}
 	return newToken, &oldClaims, nil
 }
+
+// NewJWTFromConfig 从配置创建JWT实例（内部使用）
+func NewJWTFromConfig(signingKey, issuer, expiresTime, bufferTime string) *JWT {
+	expires, _ := time.ParseDuration(expiresTime)
+	if expires == 0 {
+		expires = 7 * 24 * time.Hour // 默认7天
+	}
+	buffer, _ := time.ParseDuration(bufferTime)
+	if buffer == 0 {
+		buffer = 24 * time.Hour // 默认1天
+	}
+	return NewJWT(signingKey, issuer, expires, buffer)
+}

pkg/jwt/provider.go

@@ -0,0 +1,15 @@
+package jwt
+
+import (
+	"kra/internal/conf"
+
+	"github.com/google/wire"
+)
+
+// NewJWTFromConf 从conf.JWT配置创建JWT实例（用于wire注入）
+func NewJWTFromConf(c *conf.JWT) *JWT {
+	return NewJWTFromConfig(c.SigningKey, c.Issuer, c.ExpiresTime, c.BufferTime)
+}
+
+// ProviderSet is jwt providers for wire.
+var ProviderSet = wire.NewSet(NewJWTFromConf)