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PODownloading images through socket or http
 

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    <p>I have custom socket client server. Now when I transfer binary files, some bytes convert onto out of range characters. So I send them in hex string. That works. But for another problem this is not the solution.</p> <p>When I download images from the net, same thing happens. Some bytes change into something else. I have compared bytes by bytes. Converting into String show ? instead of the symbol. I have tried readers and byte array input stream. I have tried all the examples on the net. What is the mistake I could be doing?</p> <p>update (answer accepted):</p> <p>Check the mime of the object you send or receive. If it is a binary file, use the InputStream | OutputStream and derived classes, when text, use Reader | Writer and derived classes.</p> <p>Do not use the Readers and Writers to download a binary file, like I did (this only works for the text, and then you have to use hex string that adds to performance problems):</p> <pre><code>void saveFile(String strFileName){ try{ URL url = new URL(strImageRoot + strFileName); BufferedReader reader = new BufferedReader(new InputStreamReader(url.openStream())); BufferedWriter bw = new BufferedWriter(new FileWriter(strImageDownloadPath + strFileName)); String line = null; while ( (line = reader.readLine()) != null) { bw.write(line); } }catch(FileNotFoundException fnfe){ System.out.println("FileNotFoundException occured!!!"); }catch(IOException ioe){ }catch(Exception e){ System.out.println("Exception occured : " + e); }finally{ System.out.println("Image downloaded!!!"); } } </code></pre>
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    1. USAbhinav Saxena
    1. USAbhinav Saxena
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      1. USDeepak Swami
 

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