opencart 路线不匹配任何功能

opencart routes does not match any function

当我请求这个 url 时, https://localhost/index.php?route=product/search/ajax&keyword=brocco

opencart return 一个产品对象

[  
    {  
        "name":"Broccoli (Broccoli)",
        "href":"https:\/\/localhost\/broccoli?keyword=brocco",
        "image":"https:\/\/localhost\/image\/cache\/catalog\/product\/broccoli_new-47x47.jpg"
    }
]

但我没有找到 product/search/ajax 方法。 ajax 函数不在

catalog/controller/product/product.php (class ControllerProductProduct) 或 catalog/controller/product/search.php (class ControllerProductSearch)

如果方法 product/search/ajaxcatalog/controller/product/search.php 文件中不存在,那么它应该在以下文件中。

system/modification/catalog/controller/product/search.php