Spring MVC BindingResult異常

@RequestMapping(value = "/adCrowdEdit.s", method = RequestMethod.POST)
public String adCrowdEdit(Model model, HttpServletRequest request, HttpServletResponse response,
@ModelAttribute("command") Adcrowd command, @RequestParam(value="adTagString") String adTagString, BindingResult result) throws Exception {
    ... ...
}

以上代碼會拋出異常：Errors/BindingResult argument declared without preceding model attribute. Check your handler method signature

原因分析以及解決辦法：BindingResult的對象緊跟在@ModelAttribute聲明的對象后面，這樣Spring MVC的管理控制程序才能正確的完成綁定。

修改辦法如下，紅色字體標出： 萌萌的IT人,IT人的樂園

@RequestMapping(value = "/adCrowdEdit.s", method = RequestMethod.POST)
public String adCrowdEdit(Model model, HttpServletRequest request, HttpServletResponse response,
@ModelAttribute("command") Adcrowd command, BindingResult result, @RequestParam(value="adTagString") String adTagString) throws Exception {
    ... ...
}