Check the file/found or not

[Rodricks george]

Dear Sir,

I have a file in c:\window\test.dll.... i want to create a program so that i should check the file present in that directory or not......

Please give some idea....

-Rodricks

[Rahul Bhattacharjee]

String fileName = "c:\trythis\rahul.dll";
 
File f = new File(fileName);
System.out.print("File exists : " + f.exists()); 

[Rodricks george]

Thank you so much sir.....

[Rodricks george]

Dear Sir,
The File Checking program i have written in action class.... if i deploy it in weblogic in Linux server and if i get access to that action class it is checking That machine OS information but i am opening the application in Windows PC..... it is not checking in my PC.... What to do to get my PC information... pls solve that

-Rodricks

[Ulf Dittmer]

it is not checking in my PC

What does that mean? Are you running the code Rahul posted and it is not giving the correct result?

[Rahul Bhattacharjee]

Sorry Rodricks george , could not get much from you post. ;-)

[Rodricks george]

Dear Sir,

This is my code


String osname=System.getProperty("os.name");
System.out.println(osname);
String userHome=System.getProperty("user.home");
System.out.println("User Home Direcory:->"+userHome);




boolean exists = (new File("C:/WINDOWS/jtwain.dll")).exists();
if (exists) {
// File or directory exists
System.out.println("Found jtwain.dll");
return mapping.findForward("success");
} else {
// File or directory does not exist
System.out.println("Not Found jtwain.dll");
request.getSession().setAttribute("winDir","C:/WINDOWS");
return mapping.findForward("fail");
}



i wrote this one in action class..... i deployed the struts program in weblogic in linux OS...... While executing the application from server i got only linux machine system properties.... I want client side system properties...... whoever open my website i should get their system properties...... so that if they dont have the corresponding dll file...i will ask them to install it in c:\windows directory.... Pleas help me how to check the file found or not in client side.

-Rodricks

[Rahul Bhattacharjee]

Action class is part of struts framework and will be executed in the server side. So its obvious that you will get the properties of the server machine , now the client machine.

Though I have not worked on applets , but I think applet would be the choice if you want to do something like this as the applet bytecodes will get executed on the client side , not on the server.

[Rodricks george]

Dear Rahul Sir,

As you said i created a J applet Program and got the client details and got the user.home information and checked the windows folder and i redirected to a jsp from applet and the program is successfully running... Thank you sir for really perfect information at rite time...

-Rodricks