System command in jsp..

Hi all,
how can i run this system command "echo %username%" in jsp??
i try to do that but its givinf error like this "java.io.IOException: CreateProcess: echo %username% error=2"
please help me how run this command or is there any other way i can get domain username into my jsp page..
thankx in advance...

Read the java.lang.System API: http://java.sun.com/j2se/1.5.0/docs/api/java/lang/System.html#getProperties()
String userName = System.getProperty("user.name");Be aware that Java is serverside and this will return the server's user name. If you want to get this from the client, consider a signed applet which runs at the client side.

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DECLARE
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BEGIN
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How can I do this simple sending of OS commands in JSP, any ideas?

Hi,
Not only rename commands but I have to pass several other os commands like 'sqlldr' for data upload as well. Therefore, I need a reusable piece of code for that. I have acheived some way for that using the following code.
put the following file in that package.
package BankrecBC4J;
import java.util.*;
import java.io.*;
import java.net.*;
import java.text.*;
import java.util.zip.*;
class StreamGobbler extends Thread
InputStream is;
String type;
StreamGobbler(InputStream is, String type)
this.is = is;
this.type = type;
public void run()
try
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
String line=null;
while ( (line = br.readLine()) != null)
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public class GoodWindowsExec
private static final boolean NATIVE_COMMANDS = true;
//Allow browsing and file manipulation only in certain directories
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//If true, the user is allowed to browse only in RESTRICT_PATH,
//if false, the user is allowed to browse all directories besides RESTRICT_PATH
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private static final long MAX_PROCESS_RUNNING_TIME = 30 * 1000; //30 seconds
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     //Change this to locate the tempfile directory for upload (not longer needed)
     private static String tempdir = ".";
     private static String VERSION_NR = "1.1a";
     private static DateFormat dateFormat = DateFormat.getDateTimeInstance();
public GoodWindowsExec(String g)
System.out.println(" hello " + g);
/*if (g.length < 1)
System.out.println("USAGE: java GoodWindowsExec <cmd>");
System.exit(1);
try
String osName = System.getProperty("os.name" );
String[] cmd = new String[3];
System.out.println("here ");
if( osName.equals( "Windows NT" ) )
cmd[0] = "cmd.exe" ;
cmd[1] = "/C" ;
cmd[2] = g;
else if( osName.equals( "Windows 2000" ) )
System.out.println("Windows 2000");
cmd[0] = "command.com" ;
cmd[1] = "/C" ;
cmd[2] = g;
else if( osName.equals( "Windows XP" ) )
System.out.println("Windows XP");
cmd[0] = "command.com" ;
cmd[1] = "/C" ;
cmd[2] = g;
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cmd[0] = "command.com" ;
cmd[1] = "/C" ;
cmd[2] = g;
Runtime rt = Runtime.getRuntime();
System.out.println("Execing " + cmd[0] + " " + cmd[1]
+ " " + cmd[2]);
Process proc = rt.exec(cmd);
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     *      @param command the command to start the process
     *     @param dir the dir in which the process starts
// any error message?
StreamGobbler errorGobbler = new
StreamGobbler(proc.getErrorStream(), "ERROR");
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StreamGobbler outputGobbler = new
StreamGobbler(proc.getInputStream(), "OUTPUT");
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errorGobbler.start();
outputGobbler.start();
// any error???
int exitVal = proc.waitFor();
System.out.println("ExitValue: " + exitVal);
} catch (Throwable t)
t.printStackTrace();
     * Converts some important chars (int) to the corresponding html string
     static String conv2Html(int i) {
          if (i == '&') return "&";
          else if (i == '<') return "<";
          else if (i == '>') return ">";
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static String startProcess(String command, String dir) throws IOException {
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In the first line of the JSP file include the package
<%@page import="BankrecBC4J.*" %>
and call
it this way:from the jsp page
new GoodWindowsExec ("calc"); //
which should open up the calciulator, and should do for other os commands as well.
Thanks

Need help with Telnet command in JSP

Here is the code I have been working on but it will not display the buffer to the page..
String [] cmd1 = {"cmd.exe","/c","telnet hqsun1.xx.xxxxx.com"};
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Maybe someone has done this before? I am trying to acomplish a telnet net session to the screen with some exicuted commands, because this tool is going to be used to help determine system status when the help desk needs to check on something.
Thanks

I don't want to be discouraging, but I'm not quite sure you've thought the problem through. You say that you'd like to create a web page capable of providing various pieces of information to the help desk, and you suggest ping and the output of various canned telnet commands as examples.
What is preventing the help desk from just executing those commands at the command prompt?
I realize that the people working the help desk are (ahem) there for a reason, but it is really much faster for me to just simply type "ping www.mpalfrey.com" at the prompt, then it is for me to fire up the web browser and wait for a response that way. You will likewise find that it is a lot more convenient to perform diagnosis on remote machines directly from the command prompt.
Uh, it's kind of like giving someone a screwdriver, then saying, "oh wait a second" and making them wear an oven mitt in order to use the screwdriver.
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<%@ import page="com.mpalfrey.shellcommands.ping" %>
<%
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%>
Ping results:
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Permission problems when trying to execute simple system command

Hi, I am quite new to JSP so please forgive me if I ask really simple things... I am trying to run system commands on the server and display the output on a webpage. This is what I've got:
<%@ page import="java.io.*" %>
<HTML>
<BODY>
<%
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Process p = rt.exec("/bin/ls");
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// read the output
String line;
while ((line = sOut.readLine()) != null)
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%>
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</HTML>However, when I run this, I get the following:
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Exception in JSP: /research/test.jsp:7
4: <%
5: Runtime rt = Runtime.getRuntime();
6:
7: Process p = rt.exec("/bin/ls");
8:
9: // for reading the output of the program
10: // (out of the program is in for us)
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:451)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:373)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
sun.reflect.GeneratedMethodAccessor63.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:597)
org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:244)
java.security.AccessController.doPrivileged(Native Method)
javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:276)
org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:162)
root cause
java.security.AccessControlException: access denied (java.io.FilePermission /bin/ls execute)
java.security.AccessControlContext.checkPermission(AccessControlContext.java:323)
java.security.AccessController.checkPermission(AccessController.java:546)
java.lang.SecurityManager.checkPermission(SecurityManager.java:532)
java.lang.SecurityManager.checkExec(SecurityManager.java:779)
java.lang.ProcessBuilder.start(ProcessBuilder.java:447)
java.lang.Runtime.exec(Runtime.java:593)
java.lang.Runtime.exec(Runtime.java:431)
java.lang.Runtime.exec(Runtime.java:328)
org.apache.jsp.research.test_jsp._jspService(test_jsp.java:49)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
sun.reflect.GeneratedMethodAccessor63.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:597)
org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:244)
java.security.AccessController.doPrivileged(Native Method)
javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:276)
org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:162)
Seems like it has something to do with the permissions granted to the JVM? I have googled high and low and still haven't found a way to solve it. I've also tried adding grant { permission java.io.FilePermission "file:/bin/ls", "execute"; } to my java.policy file but to no avail. Could somebody point out how to solve this? Thanks!

I would think it is an OS permission thing rather than java permission
What user is apache running as on this system?
Does the user apache is running as have permissions to run these commands, in the directory where you are running them? Try executing them yourself when logged in as that user.
I would also recommend you read the article [when runtime.exec() won't|http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html].
Cheers,
evnafets

How to call systems commands

Hello guys,
I will like to know if there is a way of calling system command and shell commands in windows without making use of the Runtime Class in java.
Also when ever i call a system command or shells commands from my java application using the runtime class, it open the a new shell(Command Prompt) before executing the command.
I await your response. Thanks in advance.
Joe.

How about this? http://onesearch.sun.com/ClickThru?qt=without+command+window&url=http%3A%2F%2Fforum.java.sun.com%2Fthread.jsp%3Fforum%3D31%26thread%3D440546&pathInfo=%2Fsearch%2Fdevelopers%2Findex.jsp&hitNum=2&col=devforums

Urgent!! running system command in java

i am trying to run system command(windows) in java. I am getting
exception as java.io.IOException: CreateProcess: c:\dir
Please Help.
Here is the code
import java.io.*;
public class RunCommand {
public static void main(String[] args) {
try
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Process p = Runtime.getRuntime().exec("c:\\dir");
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System.out.println("exception Happened" );
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Hi,
We are trying to execute multiple commands via "Operating System Command Before/After Message Processing".
When we use single command say for example cp or mv (copy or move) the commands get executed fine.
eg: cp %F /var/opt/data/outbound/Test/Dummy.txt
/this works fine/
when we club commands together or try to redirect the outputs of commands, none of the commands get executed.
eg:
cp %F /var/opt/data/outbound/Test/Dummy.txt ; rm %F
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wc -l %F > /var/opt/data/outbound/Test/Dummy.txt
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try like this
cp %F /var/opt/data/outbound/Test/Dummy.txt ; rm %F
instead of semicolon try this
(1) &
command1 & command2
Execute Command1 and then execute Command2
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command1 && command2
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(3) ||
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Runs the second command if the first command had an error
(4) ()
(command1 || command2) || (command3 & command4)
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System commands - disk access

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Hi,
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http://help.sap.com/saphelp_nwpi71/helpdata/en/44/556cb799c93677e10000000a114a6b/content.htm
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hi,
>>>is there any way to set the "Operating System Command Line" in the file adapter as ASMA / dynamic attribute?
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Regards,
Michal Krawczyk

File Receiver Adapter:Run Operating System COmmand after message Processig:

Dear All,
I have gone through this link
[http://help.sap.com/saphelp_nw2004s/helpdata/EN/e3/94007075cae04f930cc4c034e411e1/content.htm]
But i have a problem.
In the scenario which we have, File name is DYNAMICALLY GENERATED by a UDF
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But since the file name is Dynamic....How will i call the file at run time in Command Line:
SYNTAX: %f(FileName)
How will i specify the file name in the above syntax as the file name is Dynamic and not constatnt.
Please Advice.
Senthilprakash.

Dear All,
Yes just now i got the answer from this thread[OS command line script - Need help;
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In REVEIVER FILE ADAPTER:
when we give Run Operating system Command After Message processing
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Regards,
Senthilprakash.

Operating System commands in FTP adapter

Hi
I have a requirement to use "Operating System Command" option in the Sender/Receiver side File Adapter.
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http://help.sap.com/saphelp_nw04/helpdata/en/bc/bb79d6061007419a081e58cbeaaf28/content.htm
When I tried to execute some valid DOS commands like MKDIR,RENAME etc it didn't work at all.
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System : XI 3.0 SP 11
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Hi,
A couple of cautionary notes.
The OS command is executed after the file has been processed, e.g. read successfully by a sender adapter or created successfully by a receiver adapter.
The file name processed can be accessed using %f in the OS command.
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Operating System Command After File Processing in Sender File Adapter

Hello guys,
actually we have different interfaces, and the client to take all the files from only one directory, for example D:/DPI.
Unitl now we had one adapter for every file with the content conversion, so we didn't have problems with that. Now we have the problem that we sould maintain an order processing files.
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We are using a Windows.
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Helo Guys,
maybe I haven't explained well.
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There is any way to do this or maybe we have to manage in a different way?
Many thanks in advance.
Regards,
Xavi.

System command in jsp..

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