Toby's email is correct. The correct way to read from an InputStream is to
create a buffer of bytes, then iterate over it. You should be doing
something like this:
while ((len = stream.read(buffer, 0, buffer.length)) != -1) {
output.write(buffer, 0, len);
}
As far as your question goes, per Sun's documentation of the ServletRequest
class:
http://java.sun.com/j2ee/1.4/docs/api/javax/servlet/ServletRequest.html#getInputStream()
getParameter
public java.lang.String *getParameter*(java.lang.String name)
*If the parameter data was sent in the request body, such as occurs with an
HTTP POST request, then reading the body directly via
**getInputStream()*<../../javax/servlet/ServletRequest.html#getInputStream()>
* or **getReader()* <../../javax/servlet/ServletRequest.html#getReader()>* can
interfere with the execution of this method.*
On Mon, Nov 23, 2009 at 7:04 PM, Bourke Floyd IV <[email protected]> wrote:
> //I figured out the problem. Example case: POST Request from a webpage
> with 2 text fields (userEmail = '[email protected]', and favCar =
> 'corvette')
> //If I use
> String email = req.getParameter("userEmail")
>
> //and then try to get the whole body of the POST
>
> InputStream inputStream = req.getInputStream();
> if (inputStream != null) {
> byte[] body = new byte[inputStream.available()];
> inputStream.read(body);
> String body = new String(body);
> }
>
> //body = ""
> //but if I comment out the use of ANY getParameter Call, I get body
> fine.
> //Also, the reverse also holds true
>
> //if you get the body using the InputStream, then try to use
> getParameter
> //then all of your getParameters will return null
>
> //I don't know if this is by design or a bug because I'm not
> experienced Java Programmer
>
> -Bourke
>
>
>
> On Nov 23, 5:50 pm, "Ikai L (Google)" <[email protected]> wrote:
> > What are you posting? This code works for me:
> >
> > public class TestPostServlet extends HttpServlet {
> >
> > protected void doPost(HttpServletRequest request, HttpServletResponse
> > response) throws ServletException, IOException {
> > InputStream in = request.getInputStream();
> >
> > int size = in.available();
> > byte[] body = new byte[size];
> > int status = in.read(body);
> > in.close();
> >
> > response.getWriter().println("Status of read: " + status + "
> Size: "
> > + size);
> > response.getWriter().println("Got your post: " + new
> String(body));
> >
> > }
> >
> > }
> >
> > What mechanism are you using to POST to your application? Is it a browser
> > form or a custom client?
> >
> > On Sat, Nov 21, 2009 at 12:37 PM, Bourke Floyd IV <[email protected]>
> wrote:
> >
> >
> >
> >
> >
> > > //This was working before I overhauled the authentication of my app
> > > //I'm trying to store the body of a Http POST as Text, I also plan on
> > > doing a Blob version
> > > //The maxLength is returning the correct size, but the read is
> > > returning -1 instead of properly
> > > //updating the body byte array
> >
> > > //...
> >
> > > InputStream httpIn = req.getInputStream();
> > > byte[] body = new byte[httpIn.available()];
> > > httpIn.read(body);
> >
> > > Text myPostBody = new Text(new String(body)); //wasteful maybe? but
> > > should work
> >
> > > //...
> >
> > > //My old code was roughly the same
> >
> > > //...
> >
> > > int maxLength = req.getContentLength();
> > > byte[] body = new byte[maxLength];
> >
> > > InputStream httpIn = req.getInputStream();
> > > httpIn.read(body, 0, maxLength);
> >
> > > String myPostBody = new String(body); //wasteful maybe? but should
> > > work
> >
> > > //...
> >
> > > --
> >
> > > You received this message because you are subscribed to the Google
> Groups
> > > "Google App Engine for Java" group.
> > > To post to this group, send email to
> > > [email protected].
> > > To unsubscribe from this group, send email to
> > > [email protected]<google-appengine-java%[email protected]><google-appengine-java%2B
> [email protected]>
> > > .
> > > For more options, visit this group at
> > >http://groups.google.com/group/google-appengine-java?hl=.
> >
> > --
> > Ikai Lan
> > Developer Programs Engineer, Google App Engine
>
> --
>
> You received this message because you are subscribed to the Google Groups
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> To post to this group, send email to
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> To unsubscribe from this group, send email to
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>
>
>
--
Ikai Lan
Developer Programs Engineer, Google App Engine
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