Question

Converting InputStream to File

Asked by: bluefossil

Hi all,

I have a xml which i've downloaded from a FTP server.
I would like to convert the InputStream to a File so i could upload to another FTP server as a xml file.
I'm using Javazoom upload.
This is the code i've done so far to read the xml:

response.setContentType("text/xml");
URL url = new URL("ftp://user:password@FTP.address.COM/file.xml");
URLConnection urlc = url.openConnection();
InputStream is = urlc.getInputStream(); // to download
BufferedInputStream input= new BufferedInputStream(is);
int readBytes=0;
while((readBytes=input.read())!=-1){
%>      <%out.write(readBytes);%><%
}

Thanks in advance. I'll be back tomorrow to view it.

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Asked On
2006-12-27 at 02:32:44ID22103928
Tags

inputstream

,

file

Topic

Java Server Pages (JSP)

Participating Experts
2
Points
250
Comments
7

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Answers

 

by: vsubram2Posted on 2006-12-27 at 22:16:22ID: 18206560

<%!
public static  void createFile(InputStream io, String fileName) throws IOException {
        FileOutputStream fos = new FileOutputStream(fileName);
        byte[] buf = new byte[256];
        int read = 0;
        while ((read = io.read(buf)) > 0) {
            fos.write(buf, 0, read);
        }
    }
%>
response.setContentType("text/xml");
URL url = new URL("ftp://user:password@FTP.address.COM/file.xml");
URLConnection urlc = url.openConnection();
InputStream is = urlc.getInputStream(); // to download
createFile(is,"file1.xml");

 

by: bluefossilPosted on 2006-12-28 at 00:46:04ID: 18206946

Hi vsubram2,

After including your function and calling it. I got a
sun.net.ftp.FtpLoginException: Not logged in

Before including i can read the xml on the webpage. Anyway to solve this?

Thanks in advance.

 

by: vsubram2Posted on 2006-12-28 at 01:01:26ID: 18206971

I dont think  ,the sun.net.ftp.FtpLoginException: Not logged in is  due to t code given.
since the fn is no way related with the FTP,it is just reading the inputstream from the url and creates a file.
response.setContentType("text/xml");
URL url = new URL("ftp://user:password@FTP.address.COM/file.xml");
URLConnection urlc = url.openConnection();
InputStream is = urlc.getInputStream(); // to download
createFile(is,"file1.xml");  ======> u  r calling t fn here only ,after connectiong to ftp and getting the IStream.

 

by: vsubram2Posted on 2006-12-28 at 01:14:53ID: 18206984

did u change the jdk version .
seems ,it s due to diff cause.
http://www.jdom.org/pipermail/jdom-interest/2003-April/011754.html

 

by: bluefossilPosted on 2006-12-28 at 02:22:52ID: 18207154

Hi vsubram2,

With the code below, i had no problems viewing the xml in jsp, only when i try to call the function then the problem arise.
The file i try to write in don't seems to get affected by my write.
i did not change the jdk version. Is there something else that trigger the error?

<%!
public static  void createFile(InputStream io, String fileName) throws IOException {
        FileOutputStream fos = new FileOutputStream(fileName);
        byte[] buf = new byte[256];
        int read = 0;
        while ((read = io.read(buf)) > 0) {
            fos.write(buf, 0, read);
        }
    }
%>
<%
response.setContentType("text/xml");
String urlAdd = "ftp://user:password@FTP.address.COM/file.xml";
int readBytes=0;
String newXML = "newfile.xml";
try{
FileWriter fw = new FileWriter(newXML);

URL url= new URL(urlAdd);
URLConnection urlc = url.openConnection();
InputStream is = urlc.getInputStream(); // to download

//createFile(is,newXML); =====> the call function

BufferedReader br = new BufferedReader(new InputStreamReader(is));
fw.flush();
while((readBytes=br.read())!=-1){
      fw.write(br.readLine()+"\r\n");
      out.println(br.readLine()+"<br/>");
}


}catch(Exception e){
      out.print(e);
}
%>

Thanks in advance.

PS. I would be back to check 5 days later.
Happy new year folks.

 

by: owenli27Posted on 2006-12-28 at 07:20:58ID: 18208086

sorry for jumping in. this function should be OK:

public static void createFile(InputStream in, String fileName) throws Exception
{
  try
  {
      FileOutputStream outStream = new FileOutputStream(fileName);
      ByteArrayOutputStream byteArrayOS = new ByteArrayOutputStream();
      int ch = 0;
      while ((ch = in.read()) >= 0)
      {
            byteArrayOS.write(ch);
      }

      byteArrayOS.writeTo( outStream );  //converted to ASCII data, not binary
      byteArrayOS.flush();
      outStream.flush();
      outStream.close();
  }
  catch (Exception ie)
  {
      ie.printStackTrace();
  }
}

 

by: bluefossilPosted on 2007-01-03 at 00:47:07ID: 18233753

Hi all,

Both work so i up the points and split it.

Thanks for your help.

20120131-EE-VQP-002

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