InputStream → String

InputStream in = request.getInputStream();
int k;
int aBuffSize = 1123123;
String StringFromWS="";
byte buff[] = new byte[aBuffSize];
OutputStream xOutputStream = new ByteArrayOutputStream(aBuffSize);

while ( (k=in.read(buff) ) != -1)
xOutputStream.write(buff,0,k);

// I can now grab the string I want
StringFromWS = StringFromWS + xOutputStream.toString();
System.out.println(StringFromWS);

InputStream in = req.getInputStream();

DataInputStream dis = new DataInputStream(in);

StringBuffer sb = new StringBuffer();
String line;
while *1 != null) {
sb.append(line+"\n");
}
String finalSring = sb.toString();

source

*1:line=dis.readUTF(