I am using the Java code to execute a bat file to make a war file by the following java code
String command = "cmd /C start C:/processFolder/paas.bat";
Runtime rt = Runtime.getRuntime();
Process pr = rt.exec(command);
which means it will execute the paas.bat file to do some jobs. There is a command within the paas.bat :
jar cfv xxx.war */ .
however, it does not jar all the file and folder into xxx.war. Does any one has the idea why this happens? Thanks！
The command uses current working directory, which will be different from java program. You may change script to do a cd and then call jar command.
cd /d <path to folder where this should execute from>
jar ....
Please capture output , error and exceptions(if any) from the command and add to your question.
(note#1. It may be more useful to use tools like ant to do these task. The tasks in ant can be called from java program using ant libraries..
Note#2 - Prefer ProcessBuilder to launch new process. )
Related
My requirement is i have to run Batch file located in (C:\Users\Vk\TestBatch.bat) under C:\users\VK\Logs(This is the path in which i have to run the batch file). After that i have to run the python script. I have to do this by using ProcessBuilder. Below is the piece of code i am using, but unfortunately it is not working.
String[] command ={"cmd.exe","/C","cd C:\\Users\\vk\\Logs","C:\\users\\Vk\\TestBatch.bat",
"C:\\Python27\\ArcGIS10.3\\python.exe","C:\\Users\\vk\TestScript2.py"};
probuilder = new ProcessBuilder(command );
Can any one suggest me how to run this batch file in other location and followed by the execution of python script.
Thanks,
Sudheer
There are two options to achieve this.
Either add your python executable in your System Path.
You can go to the particular directory where executable is located and run the python script.
a. Go to Directory where batch file is located.
b. Run batch file by simply putting the name.
c. go to home directory by command cd
d. go to directory where python executable is present.
e. run python script using command `py <scriptName>`
String [] command = {"cd C:\users\Vk", "TestBatch", "cd", "cd C:\Python27\ArcGIS10.3\", "py TestScript2.py"};
ProcessBuilder probuilder = new ProcessBuilder(command);
I am currently using a linux system to execute a specific command that translates into another java command (java - jar)
For example:
when i try execute /usr/bin/a in terminal, it will read the /usr/bin/a command and translates into 'java -jar' command
I do not want to execute 'java -jar' command directly and i would to specify a full path in executing the command so is there a possible way to achieve this without using a script like /.sh?
Things that i have attempted:
i have tried using the alias command in bashrc files
for example in bashrc file:
alias /usr/bin/a='java - jar'
but when i try to source the bashrc files, it gives me an invalid alias.
I know i can use a /.sh script to execute the command but that is not my intention to do it.
Have you tried to write a bash script with java -jar and execute it ?
You test.sh file will contain:
java -jar test.jar
And after that you can run
./test.sh
And offcourse you can put to bin directory or create an alias for that bash file
I have created a jar file called test.jar under C:\jars. I have JAR file under the same location named run.bat and it contains the below code -
#echo off
set exec_path=C:\jars java -cp %exec_path%/test.jar; com.mycomp.myapp.MyProgram "%1"%*
#echo on
It is running successfully from command prompt with parameters.
Now I would like to run it from another JAVA program.
Please suggest.
Thanks!
I've encountered this issue before. The answer is that you have to run cmd.exe or bash or whatever shell you've got, then feed in the command to that process via the process input/output streams.
Process p = Runtime.getRuntime().exec("cmd");
p.getOutputStream().write("mybatch.bat\n");
I am trying to make a eclipse project in Java to launch commands with some buttons. The libraries of Ros fuerte (These ones i want to use) are correctly installed and concretly i am trying to launch a ros command from a Java File using:
String cmd = "roscore";
Runtime rt = Runtime.getRuntime();
Process p = rt.exec(cmd);
If i launch this command from a current terminal it works, but if i do it from the java file i have a problem because the terminal doesnt recognize the command.
java.io.IOException: Cannot run program "roscore": java.io.IOException: error=2, No such file or directory
at java.lang.ProcessBuilder.start(ProcessBuilder.java:475)
at java.lang.Runtime.exec(Runtime.java:610)
at java.lang.Runtime.exec(Runtime.java:448)
at java.lang.Runtime.exec(Runtime.java:345)
at LaunchTerminal.main(LaunchTerminal.java:24)
I think that i need to add some path or similar but i dont find the information. Does anybody know how to do it?
Thank u.
only normal commands are possible to execute like rm or cd ... al others must be referenced with full path of context
Do the following if you are using the groovy distribution:
String cmd = "source /opt/ros/groovy/setup.bash && roscore";
I'm using the following command in runtime to extract a jar to a specific path, but the file is extracted in my class exe path.
cmd="cmd /c cd F: && cd F:\workFolder\ProcessFile\ProcessJar\PJar && jar xvf F:\workFolder\ProcessFile\ProcessJar\agconfig.jar"
Runtime rt = Runtime.getRuntime();
Process proc = rt.exec(cmd);
Suppose, I'm executing the above code in E:\, then the jar file is extracted in the same path.
Kindly help me to extract the jar in specified path (F:\workFolder\ProcessFile\ProcessJar\PJar)
You should not make system calls from a java application, if you can also solve the problem using java code.
You can do it in java with java.util.zip.*.
See this tutorial.