Execute Jar file from C sharp code and get return value

Question

Just I want to execute the Jar file from C sharp code and get return values from jar. Is it possible?

If so give me the sample code.

I tried following thing,

            string path = "C:\\Documents and Settings\\Desktop";
            Process process = new Process();
            process.StartInfo.RedirectStandardOutput = true;
            process.StartInfo.RedirectStandardError = true;
            process.StartInfo.UseShellExecute = false;
            process.StartInfo.WindowStyle = ProcessWindowStyle.Normal;
            process.StartInfo.CreateNoWindow = false;
            process.StartInfo.FileName = "C:\\Program Files\\Java\\jre6\\bin\\java.exe";
            process.StartInfo.Arguments = "-jar \"" + path + "\\simple.jar\"";
            process.Start();
            String s = process.StandardOutput.ReadToEnd();

here simple.jar has main method which will take the arguements and prints the passed arguemnets in console, otherwise it prints no arguements in console. I tried above code in this line(String s = process.StandardOutput.ReadToEnd();) able to read the console values.

But I want to execute a method by passing values in jar and method will return me hashmap (collection) values(I don't know it is possible or not). Please give me suggestions on this.

You can run it as a command line program, like any other command line program. — Peter Lawrey, Jan 23 '13 at 09:12
http://stackoverflow.com/questions/873809/how-to-execute-a-java-program-from-c covers this i think. — Gjordis, Jan 23 '13 at 09:13

score 7 · Answer 1 · edited May 23 '17 at 11:52

7

To execute a jar file in the command line use java.exe -jar <jar_name>.

Take a look here to see how do you execute a command line program and get its output in C#.

edited May 23 '17 at 11:52

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1
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answered Jan 23 '13 at 09:13

Ivaylo Strandjev

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score 1 · Answer 2 · answered Jul 12 '19 at 16:35

This works for me

        Process myProcess = new Process();
        myProcess.StartInfo.UseShellExecute = false;
        myProcess.StartInfo.FileName = "java";
        myProcess.StartInfo.Arguments = "-jar C:\\FileLocal\\file.jar";
        myProcess.Start();

Execute Jar file from C sharp code and get return value

2 Answers2

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