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help me to read a file from another machine in the network.

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Join Date: Jul 2007

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stephen84s stephen84s is offline

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Re: help me to read a file from another machine in the network.

#11

Dec 16th, 2008

Now to connect via a Proxy **I think** you need to use the following method while opening the URL Connection using this "openConnection()" method of the URL class.

It takes an object of the Proxy class as an argument.

To construct the Proxy using the Proxy(Proxy(ProxyType, SocketAddress)) constructor itself you will need two items, First is the Proxy type, I am guessing yours is an HTTP proxy server so use Proxy.Type.HTTP as the first argument.
Next you will need a SocketAddress, the SocketAddress class is itself abstract so you will need to use the InetSocketAddress class which is its concrete sub class. Using InetSocketAddress(String hostname, int port) create an object of the InetSocketAddress of your Proxy Server (using the host name and port on which your proxy is running).

So that **should** do the job of getting past your Proxy.

Last edited by stephen84s; Dec 16th, 2008 at 7:33 am.

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Join Date: Nov 2008

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AlbertPi

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Re: help me to read a file from another machine in the network.

#12

Dec 16th, 2008

A proxy server is a server that services the requests of its clients by forwarding requests to other servers and acts as a gateway.

Ask your networking admin. about ip address of your proxy server ?

:-)

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ajithraj

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Re: help me to read a file from another machine in the network.

#13

Dec 17th, 2008

Using this code the file can be uploaded to the server

 Help with Code Tags 
 Java Syntax (Toggle Plain Text) 
<%@ page import="java.io.*" %>
 
<%
String contentType = request.getContentType();
System.out.println("Content type is :: " +contentType);
if ((contentType != null) && (contentType.indexOf("multipart/form-data") >= 0)) {
DataInputStream in = new DataInputStream(request.getInputStream());
int formDataLength = request.getContentLength();
 
byte dataBytes[] = new byte[formDataLength];
int byteRead = 0;
int totalBytesRead = 0;
while (totalBytesRead < formDataLength) {
byteRead = in.read(dataBytes, totalBytesRead, formDataLength);
totalBytesRead += byteRead;
}
 
 
String file = new String(dataBytes);
String saveFile = file.substring(file.indexOf("filename=\"") + 10);
//out.print("FileName:" + saveFile.toString());
saveFile = saveFile.substring(0, saveFile.indexOf("\n"));
//out.print("FileName:" + saveFile.toString());
saveFile = saveFile.substring(saveFile.lastIndexOf("\\") + 1,saveFile.indexOf("\""));
//out.print("FileName:" + saveFile.toString());
 
//out.print(dataBytes);
 
int lastIndex = contentType.lastIndexOf("=");
String boundary = contentType.substring(lastIndex + 1,contentType.length());
//out.println(boundary);
int pos;
pos = file.indexOf("filename=\"");
 
pos = file.indexOf("\n", pos) + 1;
 
pos = file.indexOf("\n", pos) + 1;
 
pos = file.indexOf("\n", pos) + 1;
 
 
int boundaryLocation = file.indexOf(boundary, pos) - 4;
int startPos = ((file.substring(0, pos)).getBytes()).length;
int endPos = ((file.substring(0, boundaryLocation)).getBytes()).length;
 
out.println(boundaryLocation+"pppp"+file.length()+"ooooooooooooo"+(endPos-startPos)+"kkkkk");
 
saveFile = "/usr/programs/apache-tomcat-6.0.16/webapps/Pinnacle/hr_photoGallery/" + saveFile;
FileOutputStream fileOut = new FileOutputStream(saveFile);
 
 
//fileOut.write(dataBytes);
fileOut.write(dataBytes, startPos, file.length());
fileOut.flush();
fileOut.close();
 
out.println("File saved as " +saveFile);
 
}
%>
<%@ page import="java.io.*" %>

<%
String contentType = request.getContentType();
System.out.println("Content type is :: " +contentType);
if ((contentType != null) && (contentType.indexOf("multipart/form-data") >= 0)) {
DataInputStream in = new DataInputStream(request.getInputStream());
int formDataLength = request.getContentLength();

byte dataBytes[] = new byte[formDataLength];
int byteRead = 0;
int totalBytesRead = 0;
while (totalBytesRead < formDataLength) {
byteRead = in.read(dataBytes, totalBytesRead, formDataLength);
totalBytesRead += byteRead;
}


String file = new String(dataBytes);
String saveFile = file.substring(file.indexOf("filename=\"") + 10);
//out.print("FileName:" + saveFile.toString());
saveFile = saveFile.substring(0, saveFile.indexOf("\n"));
//out.print("FileName:" + saveFile.toString());
saveFile = saveFile.substring(saveFile.lastIndexOf("\\") + 1,saveFile.indexOf("\""));
//out.print("FileName:" + saveFile.toString());

//out.print(dataBytes);

int lastIndex = contentType.lastIndexOf("=");
String boundary = contentType.substring(lastIndex + 1,contentType.length());
//out.println(boundary);
int pos;
pos = file.indexOf("filename=\"");

pos = file.indexOf("\n", pos) + 1;

pos = file.indexOf("\n", pos) + 1;

pos = file.indexOf("\n", pos) + 1;


int boundaryLocation = file.indexOf(boundary, pos) - 4;
int startPos = ((file.substring(0, pos)).getBytes()).length;
int endPos = ((file.substring(0, boundaryLocation)).getBytes()).length;

out.println(boundaryLocation+"pppp"+file.length()+"ooooooooooooo"+(endPos-startPos)+"kkkkk");

saveFile = "/usr/programs/apache-tomcat-6.0.16/webapps/Pinnacle/hr_photoGallery/" + saveFile;
FileOutputStream fileOut = new FileOutputStream(saveFile);


//fileOut.write(dataBytes);
fileOut.write(dataBytes, startPos, file.length());
fileOut.flush();
fileOut.close();

out.println("File saved as " +saveFile);

}
%>

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Join Date: Feb 2006

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masijade

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Re: help me to read a file from another machine in the network.

#14

Dec 17th, 2008

See the comments on this code here:

http://www.daniweb.com/forums/thread162658.html

Java Programmer and Sun Systems Administrator

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Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it.
--Brian Kernighan