Read the Windows Registry from java

[Miguel Enriquez]

hi all how Read the Windows Registry from java... basically i need know where are the Favorites folder... i try:

1) readed: http://java.sun.com/j2se/1.4.2/docs/api/java/util/prefs/Preferences.html
2) System.getProperty("user.home") + "/favorites" but what happend if the windows are in spanish?? a different folder...

i found the exact directory in:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders\Favorites

but how read the registry???

thanks?

[Miguel Enriquez]

Solved!!! i have the version:

C:\programa\java\Mysql>java -version
java version "1.5.0_02"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_02-b09)
Java HotSpot(TM) Client VM (build 1.5.0_02-b09, mixed mode)

C:\programa\java\Mysql>


//Code
import java.io.*;

public class RegQuery {

private static final String REGQUERY_UTIL = "reg query ";
private static final String REGSTR_TOKEN = "REG_SZ";
private static final String COMPUTER_WINDOWS_FAVORITES_FOLDER = REGQUERY_UTIL +
"\"HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Shell Folders\" /v Favorites";

public static String getCurrentPCFavorites()
{
try {
Process process = Runtime.getRuntime().exec(COMPUTER_WINDOWS_FAVORITES_FOLDER);
StreamReader reader = new StreamReader(process.getInputStream());
reader.start();
process.waitFor();
reader.join();
String result = reader.getResult();
int p = result.indexOf(REGSTR_TOKEN);
if (p == -1)
return null;
return result.substring(p + REGSTR_TOKEN.length()).trim();
}
catch (Exception e) {
return null;
}
}

static class StreamReader extends Thread {
private InputStream is;
private StringWriter sw;

StreamReader(InputStream is) {
this.is = is;
sw = new StringWriter();
}

public void run() {
try {
int c;
while ((c = is.read()) != -1)
sw.write(c);
}
catch (IOException e) { ; }
}

String getResult() {
return sw.toString();
}
}

public static void main(String s[]) {
System.out.println("Personal directory : " + getCurrentUserPersonalFolderPath());
}
}

[Jesper de Jong]

Thanks for posting your solution, that will make it easier for people who have the same question to find the answer with the search function of the forum.

[Michael Ernest]

Moving to General Computing.

[Anonymous]

looks now better

 
//Code
import java.io.*;
 
public class RegQuery {
 
private static final String REGQUERY_UTIL = "reg query ";
private static final String REGSTR_TOKEN = "REG_SZ";
private static final String COMPUTER_WINDOWS_FAVORITES_FOLDER = REGQUERY_UTIL +
"\"HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Shell Folders\" /v Favorites";
 
public static String getCurrentPCFavorites()
{
try {
Process process = Runtime.getRuntime().exec(COMPUTER_WINDOWS_FAVORITES_FOLDER);
StreamReader reader = new StreamReader(process.getInputStream());
reader.start();
process.waitFor();
reader.join();
String result = reader.getResult();
int p = result.indexOf(REGSTR_TOKEN);
if (p == -1)
return null;
return result.substring(p + REGSTR_TOKEN.length()).trim();
}
catch (Exception e) {
return null;
}
}
 
static class StreamReader extends Thread {
private InputStream is;
private StringWriter sw;
 
StreamReader(InputStream is) {
this.is = is;
sw = new StringWriter();
}
 
public void run() {
try {
int c;
while ((c = is.read()) != -1)
sw.write(c);
}
catch (IOException e) { ; }
}
 
String getResult() {
return sw.toString();
}
}
 
public static void main(String s[]) {
System.out.println("Personal directory : " + getCurrentUserPersonalFolderPath());
}
}
 

[Mark Spencer]

Hi,
I am using the above code to get clearcase views -

HKEY_CURRENT_USER\Software\Atria\ClearCase\CurrentVersion\ClearCase Explorer\ViewsPage

but it is returning null.

Whats is the problem I don't know.

I was able to print

HKEY_CURRENT_USER\Software\Atria\ClearCase\CurrentVersion

which is printing correctly.

The code I am using is -

 private static final String COMPUTER_WINDOWS_FAVORITES_FOLDER = REGQUERY_UTIL +
           "\"HKEY_CURRENT_USER\\Software\\Atria\\ClearCase\\CurrentVersion\\ClearCase Explorer\\ViewsPage\"";   

I want to display contents of ViewsPage


Thanks in advance.

[Maki Jav]

You are not telling what value you want like

  "\"HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\" /v ProxyServer";

Thanks,

Maki Jav

[charles jones]

related topic in http://www.longhowl.com/howls/139, maybe useful

[Amit Ghorpade]

drashti Bhuta,
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