今天突然發(fā)現(xiàn)，當(dāng)我們根據(jù)id查詢用戶信息時(shí)，如果不想通過localhost:8080//findOne?id=1來訪問，而是通過localhost:8080//findOne/1這樣的url來訪問，結(jié)果找了一大圈都沒有發(fā)現(xiàn)，現(xiàn)在來說明一下實(shí)現(xiàn)。

這里使用@PathVariable注解來注解參數(shù)，value中使用{參數(shù)名}來實(shí)現(xiàn)。

使用@GetMapping注解,用一個(gè)對(duì)象來接受參數(shù)報(bào)錯(cuò)400

controller

@GetMapping("/products")
public ApiResult<List<YxStoreProductQueryVo>> goodsList(YxStoreProductQueryParam productQueryParam){
? ? ? ? return ApiResult.ok(storeProductService.getGoodsList(productQueryParam));
? ? }

接受參數(shù)的實(shí)體

@Data
@EqualsAndHashCode(callSuper = true)
@ApiModel(value="YxStoreProductQueryParam對(duì)象", description="商品表查詢參數(shù)")
public class YxStoreProductQueryParam extends QueryParam {
? ? private static final long serialVersionUID = 1L;
? ? private int page; ??
? ? private int limit;
? ? private int sid;
? ? private int cid;
? ? private int news;
? ? private String priceOrder;
? ? private String salesOrder;
? ? private String keyword;
? ? private Integer brandId; ? ?
}

請(qǐng)求地址：

http://127.0.0.1:8008/api/products?page=&limit=8&keyword=&sid=129&news=0&priceOrder=&salesOrder=

后臺(tái)打印報(bào)錯(cuò)信息：

Field error in object 'yxStoreProductQueryParam' on field 'page': rejected value []; codes [typeMismatch.yxStoreProductQueryParam.page,typeMismatch.page,typeMismatch.int,typeMismatch]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [yxStoreProductQueryParam.page,page]; arguments []; default message [ page ]]; default message [Failed to convert property value of type 'java.lang.String' to required type 'int' for property 'page'; nested exception is java.lang.NumberFormatException: For input string: ""]