摘要： 1为抛出异常原因，2为异常解决方法。原因： 进入spring：bind标签源码你可以看到Object target = requestContext.getModelObject(beanName); if (target == null) { throw new IllegalStateException("Neither BindingResult nor plain target object for bean name '" + beanName + "' available as request attribute"); }be 阅读全文