报错信息:
Caused by: java.lang.IllegalArgumentException: Parameter specified as non-null is null: method
kotlin.jvm.internal.Intrinsics.checkParameterIsNotNull, parameter type
代码如下:
@RequestMapping(ComponentUrlConstant.SHOW_CLEANEYE_CONFIG_META_LIST) fun showCleaneyeConfigMetaList(request: HttpServletRequest, mav: ModelAndView, type:String) :ModelAndView { mav.addObject("currentnav", "collect") mav.viewName = "/component/pengine/meta/class/cleaneyeconfiglist" return mav }
原因:
type这个参数在原来的代码中被设定是不能为空的,但是现在传入的是空的。当某个变量的值可以为null的时候,必须在声明处的类型后面加?来表示该引用可以为空
解决:在type:String后面加一个?,如下:
@RequestMapping(ComponentUrlConstant.SHOW_CLEANEYE_CONFIG_META_LIST)
fun showCleaneyeConfigMetaList(request: HttpServletRequest, mav: ModelAndView,
type:String?) :ModelAndView {
mav.addObject("currentnav", "collect")
mav.viewName = "/component/pengine/meta/class/cleaneyeconfiglist"
return mav
}