java.lang.IllegalStateException: Optional int parameter 'usid' is present but cannot be translated into a null value due to being declared as a primitive type. Consider declaring it as object wrapper for the corresponding primitive type.
这个问题是说int这个参数类型是非必须的,则会赋值成null,int是接收不了null值的,参数可以换成Integer,Integer是包装类,是一个对象,可以接收null
