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hi i have successfully done the backup process of mysql in java but when it came to restore i failed after trying for three hrs. and i desperately need it i dont know what i am doing wrong in my code , currently my IDE is netbeans
String ip="localhost";
String port="3306";
String database="dbname";
String user="user";
String pass="pass";
String path;
JFileChooser chooser = new JFileChooser();
chooser.setCurrentDirectory(new File("."));
chooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
chooser.showSaveDialog(null);
path = chooser.getSelectedFile().getAbsolutePath();
System.out.println(path);
String dumpCommand ="mysql" + " -h" + ip +" -port"+ port + " -u" + user +" -p" + pass+" "+ database +" <"+path;
Runtime rt = Runtime.getRuntime();
File test=new File(path);
PrintStream ps;
try{
Process child = rt.exec(dumpCommand);
ps=new PrintStream(test);
InputStream in = child.getInputStream();
int ch;
while ((ch = in.read()) != -1) {
ps.write(ch);
System.out.write(ch);
}
JOptionPane.showMessageDialog (null,"BackUP Successfully Completed");
InputStream err = child.getErrorStream();
while ((ch = err.read()) != -1) {
System.out.write(ch);
}
}catch(Exception exc) {
exc.printStackTrace();
}
it always shows some sql help commands in system.out and the command "<" is surely not accessing in java code instead by using it , it gives the output as unknown command \b (start of backupfile name as c:\backup.sql)
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how can one have application include its database in the jar file?
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I'm not sure what you mean by that. Do you mean that you want the database code included (i.e. the JDBC driver or whatever)? Or do you mean that you want the application to create its own database when it starts up? Or do you mean that you have some data that you want to deliver in the jar file with the application?
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Hello Friends
I created a jar applet with java update 20. but when I update java to update21 then its not working in browser.
I dont want to build my application with newer version every time and this is not a good practice even.
Any Ideas??
Thanks & Regards
Yogesh
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yogeshs wrote: its not working in browser.
yogeshs wrote: Any Ideas??
Well, it could be any one of hundreds of issues. Use your debugger and trace the applet.
It's time for a new signature.
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yogeshs wrote: I dont want to build my application with newer version every time and this is not a good practice even
Java should be backwards compatible. So, Java version 6 should always run version 5 code. A minor updgrade from 6_20 to 6_21 should definitely not break, so there should be no need to recompile anything.
When you say it is not working, what does that mean? Doesn't run, fails, does something unexpected?
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Thanks For your replies.
When I say It doesnt run then it is not loading jar file in browser.It shows main class not found.
Regards
Yogesh
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yogeshs wrote: It shows main class not found.
I think this may be a missing or invalid manifest in your jar file, chaeck your Main-Class definition is valid.
It's time for a new signature.
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I don't think anyone is likely to download something like this without more information. Please try and clarify the problem you are having, if necessary show some of the code that does not work.
It's time for a new signature.
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Hello Friends
Whenever I used to run applets It founds the installed java from Program files and runs the applet in browser.Now,I deleted the java from Program files and copy a existing JRE to another Location in some cache folder.Now How my applet will find out that java is at the cache folder and then it makes applet to run.
Any Ideas??
Thanks In Advance.
Regards
Yogesh
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I would guess that Java uses some registry key to locate itself, which is set during installation. Take a look at HKLM\Software in your registry to find entries with the path of the original run time and modify them to your new path. If this still does not work then you may need to reinstall in the default location.
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Hello
Thanks for your reply.Actually to change registery through java script uses ActiveX that is not good practice for Browsers like Mozilla.
So,is there any way to set classpath through java script so that applet looks for java.exe in that folder only.
Thanks & Regards
Yogesh
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yogeshs wrote: So,is there any way to set classpath through java script so that applet looks for java.exe in that folder only.
The classpath does not determine which java.exe is used. If you do not specify a particular location for java, it will use the path if it is an application, or the registered java plugin if it is a browser/applet. Once java starts, it uses a bootstrap classpath to load up the JVM, then uses the classpath to run the application/applet. For an application, you can specify the classpath to use when you start java. For an applet, it will use the default classpath.
As far as I am aware, you cannot use javascript to override either the version of java used for the applet, or the classpath used. That would be a fairly major security hole as it would allow malicious code to replace classes. ActiveX allows you to do things like that on IE which is why many companies have a policy in place to restrict which ActiveX controls can be run, and only trused sites are allowed to run them.
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yogeshs wrote: Thanks for your reply.Actually to change registery through java script uses ActiveX that is not good practice for Browsers like Mozilla.
I think in reality browsers will not let you do this at all.
yogeshs wrote: So,is there any way to set classpath through java script so that applet looks for java.exe in that folder only.
No idea, that's a browser/javascript question.
I think maybe David has answered the question more fully.
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If it is an application then you can simply include the JRE in a directory along with your application distribution and then run the application from that. The advantage of this is that you know which version of the JRE your application will run against, rather than being at the mercy of whichever random JRE happens to be installed as the default on the target machine. There is no need for any installation process or registration, you can copy the JRE directory and then point your application at this and away you go.
An applet is a different matter. If you want to run the applet from within a browser, then that browser must have a Java plug-in of the correct version installed and enabled. There is no way the applet can do this automatically. Normally, I would expect the browser to prompt the user with a message, something like "A required plug-in is missing for this page". In this case, the JRE does have to be properly installed and registered, and you cannot simply copy it over to the other machine.
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Thanks A lot guys for all your valuable reply and my confusion is also gone now with this issue.
Regards
Yogesh
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Do you have a real question?
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'hello corinna' contains a secret message and he needs the codz to find out what it is. Sheesh, do I have to tell you everything?
Panic, Chaos, Destruction.
My work here is done.
or "Drink. Get drunk. Fall over." - P O'H
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baddddddddddddddddddddddddddddddddddd
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Hello Friends
I am loadina jpeg image to bufferImage by using ImageIO.read(new File("sample.jpg"));
But as size of Image file crosses around 120KB then it doesnt read.
Is there any other way to read large image file Using ImageIO or any other way to load into BufferedImage.
Thanks In Advance.
Regards
Yogesh
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yogeshs wrote: But as size of Image file crosses around 120KB then it doesnt read.
120Kb does not seem very large for this type of file. What do you mean exactly when you say "doesn't read"? Do you get an exception, error message, program crash etc? Try and provide some more useful information surrounding the problem, if necessary add some debug code to your program.
It's time for a new signature.
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Hello Sir
When I load then file of size more than 120kb then program crash.
BufferedImage textureImage = ImageIO.read(new File(imageFileName));
int flags = TextureLoader.BY_REFERENCE ;
flags |= TextureLoader.GENERATE_MIPMAP;
TextureLoader textureLoader = new TextureLoader(textureImage, flags);
Texture texture = textureLoader.getTexture();
currentAppearance.setTexture(texture);
Regards
Yogesh
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yogeshs wrote: When I load then file of size more than 120kb then program crash.
Well I tried loading a file that is 791Kb with no problem. As I said earlier you need to identify exactly where it is crashing in order to find out why. Either add some debug code or run it through the debugger until something fails.
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