How to load a file from D: Directory

Question

1.50/5 (2 votes)

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Hi,

I have some image files in c://images/flower.jpg

I have used following code to read the input stream of the file.

Java

InputStream in = null;
FileInputStream fis = new FileInputStream("c://images/flower.jpg");
in  = fis;
fis.close();

But stream always returns Null . Please help me to read the file stream .

Thanks,
Baskar G

Posted 5-Nov-15 20:17pm

Baskar Gs

Updated 5-Nov-15 20:23pm

George Jonsson

v2

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Afzaal Ahmad Zeeshan 6-Nov-15 8:36am

Also, that is C directory not D directory.

3 solutions

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George Jonsson · Accepted Answer · 2015-11-05T20:25:00

Solution 1

Try to remove one of the slashes after c:
From

Java

FileInputStream fis = new FileInputStream("c://images/flower.jpg");

to

Java

FileInputStream fis = new FileInputStream("c:/images/flower.jpg");

Posted 5-Nov-15 20:25pm

George Jonsson

Comments

Baskar Gs 6-Nov-15 7:17am

I have used below code,

1)InputStream in = null;
2)in = new URL(service.getURL("file://c:/images/flower.jpg")).openStream();
3)int bytes = in.read(b);

I have deployed this code in tomcat server which works fine and displays the image.
same code has been deployed in jboss-4.2.1.GA server, which throws a null point exception in line no 3.

What is that problem, how to solve this problem help me.

George Jonsson 6-Nov-15 8:45am

Sorry, you need to contact the server support for this.

Afzaal Ahmad Zeeshan 6-Nov-15 8:36am

5ed.

H.Brydon · Accepted Answer · 2015-11-06T02:27:00

My guess is that you consider the forward slash ("/") to be an escape character that needs to be doubled. It doesn't.

On Microsoft systems, you can use either forward or back slashes. Back slashes need to be doubled; forward slashes do not.

Change your code to either one of:

C++

FileInputStream fis = new FileInputStream("c:/images/flower.jpg");

or

C++

FileInputStream fis = new FileInputStream("c:\\images\\flower.jpg");

phil.o · Accepted Answer · 2015-11-06T02:59:00

Solution 3

You can also avoid the backslashes-doubling by prefixing your string with an @.

C#

FileInputStream fis = new FileInputStream(@"c:\images\flower.jpg");

Posted 6-Nov-15 2:59am

phil.o

v3

How to load a file from D: Directory

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