Failed to get content from HttpServletRequest

Question

I am trying to get the contents of an HttpServletRequest. Here is how I do it:

// Extract the request content
StringBuilder stringBuilder = new StringBuilder();
BufferedReader bufferedReader = null;
String content = "";

try {
    InputStream inputStream = request.getInputStream();
    if (inputStream != null) {
        bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
        char[] charBuffer = new char[128];
        int bytesRead = -1;
        while ((bytesRead = bufferedReader.read(charBuffer)) > 0) {
            stringBuilder.append(charBuffer, 0, bytesRead);
        }
    } else {
        stringBuilder.append("");
    }
} catch (IOException ex) {
    throw ex;
} finally {
    if (bufferedReader != null) {
        try {
            bufferedReader.close();
        } catch (IOException ex) {
            throw ex;
        }
    }
}

content =  stringBuilder.toString();
System.out.println("Length: " + request.getContentLength());

The string "content" is empty. However, the last line displays

Length: 53

which is exactly the length of the content that I expect. If this helps, here is how I run this servlet:

wget --post-data='{"imei":"351553012623446","hni":"310150","wdp":false}' http://localhost:8080/test/forward

Answer 1

Well, finally, I found the answer! It turns out that the "post-data" value that is assigned by wget becomes the name of the parameter in the request. In other words, if I get the parameter name of the first (and only) parameter in the query, I get this value. The code to extract it is trivial:

// Extract the post content from the request
@SuppressWarnings("unchecked")
Enumeration<String> paramEnum = request.getParameterNames();
paramEnum.hasMoreElements();
String postContent = (String) paramEnum.nextElement();

Thank you all for your answers!