商城项目day10 购物车:

 1.报错如下: UnsatisfiedDependencyException: 

        Unsatisfied dependency expressed through field 'cartService'; nested exception is 

        Error creating bean with name 'com.changgou.goods.feign.SkuFeign': FactoryBean threw exception on object creation; nested exception is java.lang.IllegalStateException: PathVariable annotation was empty on param 0.

2.原因:  路径变量注解的参数为空

 3. 解决:  返回的Result<Sku>的集合