I'm trying create http proxy server on android device. When i trying read response from HTTP server (example1.com) ( example1.com contains content-length in header) If HTTP server contains content-length, then i'm read bytes from content-length else i'm read all bytes of response
byte[] bytes = IOUtils.toByteArray(inFromServer);
The problem is that, when response contains content-length the response reads quickly. If response not contains content-length the response read slowly.
this my code
DataInputStream in = new DataInputStream(inFromServer); //BufferedReader br = new BufferedReader(new InputStreamReader(in)); String line = ""; String str = ""; Integer len = 0; while(true) { line = in.readLine(); if (line.indexOf("Content-Length") != -1) { len = Integer.parseInt( line.split("\\D+")[1] ); //System.out.println("LINEE="+len); } out.println(line); str = str + line + '\n'; if(line.isEmpty()) break; } int i = Integer.valueOf(len); String body= ""; System.out.println("i="+i); if (i>0) { byte[] buf = new byte[i]; in.readFully(buf); out.write(buf); for (byte b:buf) { body = body + (char)b; } }else{ byte[] bytes = IOUtils.toByteArray(inFromServer); out.write(bytes); } out - outStream to browser
2 Answers
Answers 1
Try the following code:
// Get server response int responseCode = connection.getResponseCode(); if (responseCode == 200) { BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream())); String line; StringBuilder builder = new StringBuilder(); while ((line = reader.readLine()) != null) { builder.append(line); } String response = builder.toString() // Handle response... } Answers 2
Firstly, you should know what http protocal and how it work.
and every http Request like:
- Request Line
- Request Header
- Blank Line
- Request Body.
and every http Response like:
- Status Line
- Response Header
- Blank Line
- Response Body.
However we can read the InputStream from http server, we can split every line we read from inputstream end with '/r/n'.
and your code:
while(true) { **line = in.readLine();** if (line.indexOf("Content-Length") != -1) { len = Integer.parseInt( line.split("\\D+")[1] ); //System.out.println("LINEE="+len); } out.println(line); str = str + line + '\n'; if(line.isEmpty()) break; } } and in.readLine() return the every line not end with '/r/n', it return the line end with '/r' or '/n' . Maybe read from the inputstream block in here.
Here is a IOStreamUtils to read line end with '/r/n'.
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