No bean named 'selfController' available

String path = request.getServletPath().substring(1);
String beanName = null;
String methodName = null;
int index = path.indexOf('/');
if (index != -1) {
   beanName = path.substring(0, index) + "Controller";
   methodName = path.substring(index + 1, path.indexOf(".do"));
} else {
   beanName = "selfController";
   methodName = path.substring(0, path.indexOf(".do"));
}

报错500怎么处理啊