techques
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How to run exec() in jsp or servlet?
The following is a php code. It exec a java command and run the java class file.
How can I do it the same in jsp?
How can I do it the same in jsp?
$random = rand();
chdir('search');
exec('java Show_UI ' . $random . ' allList');
$list = file('tmp/' . $random, FILE_IGNORE_NEW_LINES);
ASKER
Dear Sir
There is a problem. Do you remember you taught me
<a href="/project/genpicture?
Then, I build a servlet doGet() and I put the code insides it:
System.getRuntime.exec("ja
Which java class should I import to it?
Moreover, where should I put the java_Show_UI.java? under WebRoot or src folders?
Currently, I put it under src dir without package.
There is a problem. Do you remember you taught me
<a href="/project/genpicture?
Then, I build a servlet doGet() and I put the code insides it:
System.getRuntime.exec("ja
Which java class should I import to it?
Moreover, where should I put the java_Show_UI.java? under WebRoot or src folders?
Currently, I put it under src dir without package.
you do not need to import any classes..
move your java class ( I am assuming the name of your java class is Show_UI and not java_show_UI)...
to a folder on C: lets say C:\myCode.
change your code to
System.getRuntime.exec("ja
Also note that this code will run your java class on Server not on Client...
if you are trying to so show something on the client side, you are doing it wrong.
move your java class ( I am assuming the name of your java class is Show_UI and not java_show_UI)...
to a folder on C: lets say C:\myCode.
change your code to
System.getRuntime.exec("ja
Also note that this code will run your java class on Server not on Client...
if you are trying to so show something on the client side, you are doing it wrong.
ASKER
I do not understand what did you mean running on server but not client.
I host it in localhost tomcat.
Can I run it?
When I open a console and type java c:\mycode\Show_UI, it said NoClassDefFoundError
I need to enter into the dir c:\mycode>java Show_UI and it can run. Is it classpath problem?
I host it in localhost tomcat.
Can I run it?
When I open a console and type java c:\mycode\Show_UI, it said NoClassDefFoundError
I need to enter into the dir c:\mycode>java Show_UI and it can run. Is it classpath problem?
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ASKER
sorry, the code still not work. I need to run a java file which located in local directory, but not under webapp
The local directory is C:/search, the java class file is Gen_Show_Pic.class and Gen_Show_Pic.java
I added C:/search to classpath and path in environmental variables
The servlet code is below:
The program hanged after running it.
If I run the command in cmd mode, it will generate a file with file name '10' under C:/search/test folder.
The local directory is C:/search, the java class file is Gen_Show_Pic.class and Gen_Show_Pic.java
I added C:/search to classpath and path in environmental variables
The servlet code is below:
The program hanged after running it.
If I run the command in cmd mode, it will generate a file with file name '10' under C:/search/test folder.
String id = 10;
Process process = Runtime.getRuntime().exec("java Gen_Show_Pic " + id + " imageFile " + id);
process.waitFor();
System.getRuntime.exec("ja