Solved

read zip file on Internet Server

Posted on 2001-09-09
11
247 Views
Last Modified: 2008-02-01
hi,

i wrote an applet ,and here is the part of the code:

 { ZipInputStream zin = new ZipInputStream(new FileInputStream(zipname));
      ZipEntry entry;
     while ((entry = zin.getNextEntry()) != null)
     {
        if (entry.getName().equals(filename))
          {   BufferedReader in = new BufferedReader(new InputStreamReader(zin));
               do something.......
          }
it runs well in my computer, but when i upload it the server and run, it says: the file access denied. what the possible problem for this?

i just read file on server, not write or update, why denied?

very urgent. 50pst

ws1999
0
Comment
Question by:ws1999
  • 5
  • 4
  • 2
11 Comments
 
LVL 3

Expert Comment

by:black
ID: 6469535
it seems like you don't have read access, is this a unix system or a windows system?
in unix, sometimes the server runs under a certain account and the file has been copied their under another account name and the account the server uses does not have read access for that file.
0
 
LVL 92

Expert Comment

by:objects
ID: 6469550
Unsigned applets are not permitted to access the local disk (for reading or writing).
You need to sign your applet to permit access to local disk.
0
 
LVL 3

Expert Comment

by:black
ID: 6469565
please disregard my comment I didn't read the applet part
sorry!
0
PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 

Author Comment

by:ws1999
ID: 6469724
hello objects

the zip file is not in local disk,but in the server.

0
 
LVL 92

Expert Comment

by:objects
ID: 6469742
The you'll need to use a different technique to open it. Remember that the applet is running on the client, so accessing files directly will access files on the client disk.

If the zip file is visible on the web server then you can use URLConnection to open it. Otherwise you'll need to use some cgi, or a servlet.
0
 

Author Comment

by:ws1999
ID: 6469953
hello object

would you please elabrate more in detail about the URL connection?

ws1999
0
 
LVL 92

Expert Comment

by:objects
ID: 6469967
The URLConnection class is used to make connections to URL's.

// Make a connection to a URL

URLConnection conn = new URLConnection(url);

// Get a stream for the connection

InputStream in = conn.getInputStream();

// Process data

ZipInputStream zin = new ZipInputStream(in);
...
0
 

Author Comment

by:ws1999
ID: 6470529
hello objects

this code seems wrong:

URLConnection conn = new URLConnection(url);

the compiler said the URLConnection is abstract and cannot be instaniciated.

so how can i access this object?

ws1999
0
 
LVL 92

Accepted Solution

by:
objects earned 50 total points
ID: 6472492
Oops, typing too fast again, try:

URLConnection conn = url.openConnection();

sorry :)

In fact if you just want to read the data then you can actually just do:

InputStream in = url.openStream();
0
 

Author Comment

by:ws1999
ID: 6472807
thanks Objects, hope to give you more points future
0
 
LVL 92

Expert Comment

by:objects
ID: 6472813
Not a problem.
Thanks for the points :)
0

Featured Post

ScreenConnect 6.0 Free Trial

Want empowering updates? You're in the right place! Discover new features in ScreenConnect 6.0, based on partner feedback, to keep you business operating smoothly and optimally (the way it should be). Explore all of the extras and enhancements for yourself!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Java contains several comparison operators (e.g., <, <=, >, >=, ==, !=) that allow you to compare primitive values. However, these operators cannot be used to compare the contents of objects. Interface Comparable is used to allow objects of a cl…
In this post we will learn how to connect and configure Android Device (Smartphone etc.) with Android Studio. After that we will run a simple Hello World Program.
Viewers will learn about the different types of variables in Java and how to declare them. Decide the type of variable desired: Put the keyword corresponding to the type of variable in front of the variable name: Use the equal sign to assign a v…
Viewers will learn about arithmetic and Boolean expressions in Java and the logical operators used to create Boolean expressions. We will cover the symbols used for arithmetic expressions and define each logical operator and how to use them in Boole…

810 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question