@FormDataParam和@FormParam有什么区别 [英] What is difference between @FormDataParam and @FormParam

问题描述

@FormDataParam 和 @FormParam 之间有什么区别？

我在一个方法中使用了多个 @FormDataParam ，但它抛出了媒体不支持的类型错误。但是当我使用 @FormParam 时，我得到了值。

I was using multiple @FormDataParam in a method but it was throwing media unsupported type error. But when I used @FormParam, I got the values.

所以，我需要知道有什么区别两者之间？

So, I need to know what is the difference between the two of them?

推荐答案

• @FormDataParam 应该与Multipart类型数据一起使用（即 multipart / form-data 或 MediaType.MULTIPART_FORM_DATA ），其原始形式看起来像

  • @FormDataParam is supposed to be used with Multipart type data (i.e. multipart/form-data or MediaType.MULTIPART_FORM_DATA), which in its raw form looks something like

    Content-Type: multipart/form-data; boundary=AaB03x
    
    --AaB03x
    Content-Disposition: form-data; name="submit-name"
    
    Larry
    --AaB03x
    Content-Disposition: form-data; name="files"; filename="file1.txt"
    Content-Type: text/plain
    
    ... contents of file1.txt ...
    --AaB03x--
    

    Multipart主要用于发送二进制数据，如非文本文件。

    Multipart is mainly used for sending binary data, like non-text files.

    @FormParam 用于url编码的请求参数（即 application / x-www-form-urlencoded 或 MediaType.APPLICATION_FORM_URLENCODED ），其原始形式如下所示

    @FormParam is for url-encoded request parameters (i.e. application/x-www-form-urlencoded or MediaType.APPLICATION_FORM_URLENCODED), which in raw form looks like

    param1=value1&param2=value2
    

  
  

  这两种类型主要用于客户端表单。例如

  Both of these types are mainly used in client side forms. For example

  <form method="POST" action="someUrl">
      <input name="gender" type="text">
      <input name="name" type="text">
  </form>
  

  以上会将请求参数发送为 application / x-www-form -urlencoded 。它将以原始形式发送为

  the above would send the request parameters as application/x-www-form-urlencoded. It would get sent in raw form as

  gender=male&name=peeskillet
  

  在服务器端，我们可以为表格中的每个命名参数使用 @FormParam / p>
  
  

  On the server side, we can use a @FormParam for each named parameter in the form

  @FormParam("gender") String gender, @FormParam("name") String name
  

  但是如果我们需要发送一个图像以及参数， application / x-form-url-encoded 数据类型不足，因为它只处理文本。所以我们需要使用Multipart

  But if we need to send say an image along with the parameters, application/x-form-url-encoded data type is not sufficient, as it only deals with text. So we need to use Multipart

  <form method="POST" action="someUrl", enctype="multipart/form-data">
      <input name="gender" type="text">
      <input name="name" type="text">
      <input name="avatar" type="file">
  </form>
  

  这里指定了Multipart类型，现在浏览器会发出类似
  
  

  Here the Multipart type is specified, now the browser will send out the request with something like

  Content-Type: multipart/form-data; boundary=AaB03x
  
  --AaB03x
  Content-Disposition: form-data; name="gender"
  
  Male
  --AaB03x
  Content-Disposition: form-data; name="name"
  
  Peskillet
  --AaB03x
  Content-Disposition: form-data; name="avatar"; filename="image.png"
  Content-Type: image/png
  
  ... binary content of image file ...
  --AaB03x--
  

  在服务器上，类似于 application / x-www-form-urlencoded 上面的示例，对于每个Multipart参数（或更准确的字段），我们可以使用 @FormDataParam 来表示每个参数

  On the server, similar with the application/x-www-form-urlencoded example above, for each Multipart parameter (or field to be more precise), we can use @FormDataParam to signify each parameter

  @FormDataParam("gender") String gender,
  @FormDataParam("name") String name,
  @FormDataParam("avatar") InputStream avatar
  

  另见：

  
  
  • HTML文档中的表单
  
  
  • Forms in HTML Documents

  这篇关于@FormDataParam和@FormParam有什么区别的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！