Java 捕捉映射中的GET请求参数<；字符串，字符串>；

我试图在SpringMVC端捕捉映射参数中的键值对。在我看来，这很简单，但我现在还不能完全理解。获取以下url

www.goudengids.be.localhost:8080/ms/view/sendContactForm.ajah?pageId=711408&listingId=685592&siteId=353009&url=http%3A%2F%2Fwww.goudengids.be.localhost%3A8080%2Fms%2Fms%2Fkbc-bank-versicherung-recht-4780%2Fms-353009-preview%2F&moduleId=65920100&mySiteId=353009&pageShortId=1&prefills[Naam]=janneke

最后你会注意到我最近一次尝试得到这个工作前缀[Naam]=janneke。我想在下面的控制器中捕捉到这一点

public String getContactForm(@RequestParam(required = true) Long moduleId, @RequestParam(required = true) String url, @RequestParam(required=false) Map<String,String> prefills, Long mySiteId, Integer pageShortId,
      DefaultPageParameters defaultPageParameters, ModelMap model, HttpServletRequest request, HttpServletResponse response, Locale locale) throws Exception {

---

我找不到一条干净的出路，所以我选择了务实的解决方案

  public String getContactForm(@RequestParam(required = true) Long moduleId, @RequestParam(required = true) String url, @RequestParam(required=false) List<String> prefills, Long mySiteId, Integer pageShortId,
      DefaultPageParameters defaultPageParameters, ModelMap model, HttpServletRequest request, HttpServletResponse response, Locale locale) throws Exception {


  private void prefillFieldsWithData(List<String> prefills, ModelMap model, BasicContactFormVo contactFormVo) {
    if(prefills != null && !prefills.isEmpty()){
      Map<String, String> valuesOfCustomFields = new HashMap<String, String>();
      List<ContactFormElementVo> customFormElements = contactFormVo.getCustomFormElements();
      for (String prefillData : prefills) {
        if(prefillData.contains("|")){
          String[] prefillFieldData = prefillData.split("|");
          for (ContactFormElementVo contactFormElementVo : customFormElements) {
            if(contactFormElementVo.getLabel().equals(prefillFieldData[0])){
              valuesOfCustomFields.put("cfe"+contactFormElementVo.getId().toString(), prefillFieldData[1]);
              break;
            }
          }                    
        }
      }
      model.addAttribute("customFieldValues",valuesOfCustomFields);
    }
  }

---

我认为典型的方法是对每个“prefill”值使用不同的可选的

@RequestParam

。如果我们有固定的值，这会起作用，但在本例中，我们讨论的是不知道可以有多少prefill字段的情况。一个表单只能有两个字段，另一个表单可以有数千个字段（有一些限制）。但是我不能在controllerI中硬编码x变量，我看不到示例请求中的

title

或

subject

参数。他们从哪里来？啊，从另一个例子看来，他们从哪里来。故事的重点是，这些领域可以是任何东西。此功能处理用户可以为其网站创建的自定义表单。他们可以称之为任何名称，但有时如果他们打开表单，您需要预先填充字段，例如共享一张图片，然后他们单击图片，表单将打开一个带有图片url的图片字段

  public String getContactForm(@RequestParam(required = true) Long moduleId, @RequestParam(required = true) String url, @RequestParam(required=false) List<String> prefills, Long mySiteId, Integer pageShortId,
      DefaultPageParameters defaultPageParameters, ModelMap model, HttpServletRequest request, HttpServletResponse response, Locale locale) throws Exception {


  private void prefillFieldsWithData(List<String> prefills, ModelMap model, BasicContactFormVo contactFormVo) {
    if(prefills != null && !prefills.isEmpty()){
      Map<String, String> valuesOfCustomFields = new HashMap<String, String>();
      List<ContactFormElementVo> customFormElements = contactFormVo.getCustomFormElements();
      for (String prefillData : prefills) {
        if(prefillData.contains("|")){
          String[] prefillFieldData = prefillData.split("|");
          for (ContactFormElementVo contactFormElementVo : customFormElements) {
            if(contactFormElementVo.getLabel().equals(prefillFieldData[0])){
              valuesOfCustomFields.put("cfe"+contactFormElementVo.getId().toString(), prefillFieldData[1]);
              break;
            }
          }                    
        }
      }
      model.addAttribute("customFieldValues",valuesOfCustomFields);
    }
  }

http://www.goudengids.be.localhost:8080/ms/view/sendContactForm.ajah?pageId=711408&listingId=685592&siteId=353009&url=http%3A%2F%2Fwww.goudengids.be.localhost%3A8080%2Fms%2Fms%2Fkbc-bank-versicherung-recht-4780%2Fms-353009-preview%2F&moduleId=65920100&mySiteId=353009&pageShortId=1&prefills=Naam|janneke%20zag%20eens%20pruimen&prefills=E-mail|maan