Get Posted XML from HttpServletRequest Object

I have a Filter that receives th开发者_如何学Pythone HttpServletRequest and the request is a POST that consists of an xml that I need to read into my filter method. What is the best way to get the posted xml from the HttpServletRequest object.

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That depends on how the client has sent it.

If it's been sent as the raw request body, then use ServletRequest#getInputStream():

InputStream xml = request.getInputStream();
// ...

If it's been sent as a regular application/x-www-form-urlencoded request parameter, then use ServletRequest#getParameter():

String xml = request.getParameter("somename");
// ...

If it's been sent as an uploaded file in flavor of a multipart/form-data part, then use HttpServletRequest#getPart().

InputStream xml = request.getPart("somename").getInputStream();
// ...

That were the ways supported by the standard servlet API. Other ways may require a different or 3rd party API (e.g. SOAP).