@requestParam在Spring MVC中具有必要的= false用法参数作为强制性

Question

我正在尝试包括一个无效的请求param，但春季似乎将其作为强制性

控制器：

open fun calculate(@RequestHeader(name = USER_ID_HEADER, required = true) userId: String,
                   @RequestParam(name = "product_price_amount", required = true) productPriceAmount: BigDecimal,
                   @RequestParam(name = "product_price_currency", required = true) productPriceCurrency: String,
                   @RequestParam(name = "item_id", required = true) itemId: String,
                   @RequestParam(name = "promocode", required = true) promocode: String,
                   @RequestParam(value = "carrier_delivery_mode",
                                 required = false, defaultValue = "BUYER_ADDRESS") carrierDeliveryMode: String? = "BUYER_ADDRESS"

获取请求

calculator/costs?product_price_amount=100&product_price_currency=EUR&item_id=g9kp615z5l32&promocode=1LL

我有以下错误：

[ { " error_code"："不良请求"， "消息"："参数条件" product_price_amount，product_price_currency，item_id，promocode，carrier_delivery_mode "未满足实际请求参数：produck_price_amount = {100}" } ]

有什么想法为什么失败？

Answer 1

您已经在注释中具有默认值。请删除此？=" puyer_address"零件，只需将其保留carrierDeliverymode：string即可。希望很有帮助：(

Answer 2

我删除了@getMapping中的参数，它起作用了：(

@GetMapping("calculator/costs",
                params = ["product_price_amount", "product_price_currency", "item_id", "promocode", "carrier_delivery_mode"])