重载发布请求映射答案

【问题标题】：Overload Post RequestMapping重载发布请求映射
【发布时间】：2016-07-06 10:21:06
【问题描述】：

我正在尝试重载 Spring 控制器的 RequestMapping。控制器将 POST 作为请求方法，我需要传递不同的参数来重载它。

如何在不更改 URL 的情况下做到这一点？

@RequestMapping(method = RequestMethod.POST, value = "/windparks/import/error")
public ModelAndView handleFileUploadError(Locale locale, @AuthenticationPrincipal SpringUser authenticatedUser, List<RegulationEvent> regList, @RequestParam("regulations") MultipartFile regulations, RedirectAttributes redirectAttributes, @PathVariable String windparkId) throws IOException, WindSpeedInterpolator.TimeSeriesMismatchException, SAXException {
    ModelAndView view = new ModelAndView("uis/windparks/parkdetail");

    view.addObject("failedEvents", regList);
    view.addObject("windparkId", windparkId);


    return view;
}

@RequestMapping(method = RequestMethod.POST, value = "/windparks/import/error")
public ModelAndView handleFileUploadError(Locale locale, @AuthenticationPrincipal SpringUser authenticatedUser, RedirectAttributes redirectAttributes, @PathVariable String windparkId) throws IOException, WindSpeedInterpolator.TimeSeriesMismatchException, SAXException {
    ModelAndView view = new ModelAndView("uis/windparks/parkdetail");

    view.addObject("windparkId", windparkId);


    return view;
}

【问题讨论】：

标签： spring spring-mvc spring-boot

【解决方案1】：

您可以在注解@RequestParam 中使用params 选项，如下所示：

@RequestMapping(method = RequestMethod.POST, value = "/windparks/import/error", params = {"locale", "authenticatedUser", "regList", "regulations", "windparkId"})
public ModelAndView handleFileUploadError(Locale locale, @AuthenticationPrincipal SpringUser authenticatedUser, List<RegulationEvent> regList, @RequestParam("regulations") MultipartFile regulations, RedirectAttributes redirectAttributes, @PathVariable String windparkId) throws IOException, WindSpeedInterpolator.TimeSeriesMismatchException, SAXException {
    ModelAndView view = new ModelAndView("uis/windparks/parkdetail");

    view.addObject("failedEvents", regList);
    view.addObject("windparkId", windparkId);


    return view;
}

@RequestMapping(method = RequestMethod.POST, value = "/windparks/import/error", params = {"locale", "authenticatedUser", "windparkId"})
public ModelAndView handleFileUploadError(Locale locale, @AuthenticationPrincipal SpringUser authenticatedUser, RedirectAttributes redirectAttributes, @PathVariable String windparkId) throws IOException, WindSpeedInterpolator.TimeSeriesMismatchException, SAXException {
    ModelAndView view = new ModelAndView("uis/windparks/parkdetail");

    view.addObject("windparkId", windparkId);


    return view;
}

也许不适合你，但你可以在Spring 中查看params 手册。

【讨论】：