CODEWITHSUNDEEP
javafilepathspace
Kryptos
Kryptos

Reputation: 542

Java File path to Executable has spaces

I have a Java program that asks the user to enter in the path to a file that needs to be executed.

the path can be something like this for example: C:/ProgramFiles/Citrix/ICA Client/pnagent.exe I create a File Object with this path, and check to make sure it exists, and check to make sure it's a File, and check to make sure it's executable. as far as File is concerned, it's a completely valid Object that exists.

note: the File object is called "script"

BUT When I run the script, I receive errors on the spaces.

Runtime rt = java.lang.Runtime.getRuntime();
Process pp = rt.exec(script.getAbsolutePath());

I am 100% the first line works correctly. The error I receive is the image below: (I have it displayed in a JOptionPane.)

Error Image

What is the best way to remove my errors? Thanks in advanced!

Attempted Solution #1: Process pp = rt.exec("\""+script.getAbsolutePath()+"\"");

When I use C:\Tools\IT Support\bookmark.htm I get enter image description here

Upvotes: 2

Views: 2267

Answers (2)

RealHowTo
RealHowTo

Reputation: 35372

Try 

String[] commands = {"cmd", "/c", "start", "\"DummyTitle\"",script.getAbsolutePath()};
Runtime.getRuntime().exec(commands);

It is a Windows only solution.

java.awt.Desktop is maybe a better solution in your situation since you need the "file-association" mechanism.

public static void open(File document) throws IOException {
    Desktop dt = Desktop.getDesktop();
    dt.open(document);
}

Upvotes: 1

Khinsu
Khinsu

Reputation: 1487

EDIT:
By far the most reliable way is to use Runtime.exec(String[] cmdarray).

If you use Runtime.exec(String command), Java only splits the command on whitespace.

the command string is broken into tokens using a StringTokenizer created by the call new StringTokenizer(command) with no further modification of the character categories. The tokens produced by the tokenizer are then placed in the new string array cmdarray, in the same order.

See also g++: File not found

Or use ProcessBuilder something like this:

ProcessBuilder pb = new ProcessBuilder("ln", "-s", "dir1/dir2", "my dir/dir2");
Process p = pb.start();

Upvotes: 4

Related Questions