Application/x-www-form-urlencoded file upload

In response, it tells about the type of returned content , to the client. A " Content - type " is simply a header defined in many protocols, such as HTTP, that makes use of MIME types to specify the nature of the file currently being handled. By the HTTP protocol, clause 7. GET requests can have "Accept" headers, which say which types of content the client understands. What is content type X www form Urlencoded? Category: technology and computing web development. This type of form is used when the user wants to upload files.

How do you set a request header? Create new headers. In the Name field, type the name of your header rule for example, My header. What is Enctype? How does post method work? How does HTTP multipart work? How is form data sent? What is the content type for image? Active 10 years, 4 months ago. Viewed 1k times. Add a comment. Active Oldest Votes. Read buffer, 0, buffer. Write buffer, 0, bytesRead ; All upload code.

Ssl3; ServicePointManager. Create requestUri ; webRequest. ToString "x", CultureInfo. InvariantCulture ; webRequest. GetValues key ; if values! Empty; if string. Format CultureInfo. GetFileName fileName ; sbHeader.

AppendLine ; if postData! Append value. GetBytes sbHeader. GetBytes sbFooter. Length; webRequest. We can simulate form submission through the FormData object, send data using the original XMLHttpRequest, and let us see the format in the Chrome development tool:.

The format is as follows:. Call interface through the following code:. From debug, you can see the following values for dataOutputStream:. Equivalent to an html form request, the value can be a Text or a file.

The dividing line at the line should be omitted. You can change the type in the upper left corner to see the corresponding Headers code, which is common in the following three types:. POST is generally used to submit data to the server. This paper mainly discusses several ways POST submits data. The specification divides HTTP requests into three parts: the status line request line, the request header, and the message body.

Similar to the following:. The protocol specifies that data submitted by POST must be placed in the entity-body, but it does not specify how the data must be encoded. In fact, the format of the message body is entirely up to the developer as long as the last HTTP request sent satisfies the above format. However, it makes sense for the server to parse the data successfully before it is sent out.

Common server-side languages such as php, python, and their framework all have built-in capabilities to automatically parse common data formats. The service side usually knows how the message body in the request is encoded based on the Content-Type field in the headers, and then parses the body.

So when it comes to POST submission data scheme, there are two parts, Content-Type and encoding method of message body.