java 从C尖代码执行Jar文件并获取返回值

Execute Jar file from C sharp code and get return value

提问by user2003167

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

只是我想从 C 锐代码执行 Jar 文件并从 jar 获取返回值。是否可以？

If so give me the sample code.

如果是这样，请给我示例代码。

I tried following thing,

我尝试了以下事情，

            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.

这里 simple.jar 有 main 方法，它将获取参数并在控制台中打印传递的参数，否则它不会在控制台中打印参数。我在这一行中尝试了上面的代码(String s = process.StandardOutput.ReadToEnd();) 能够读取控制台值。

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.

但是我想通过在 jar 中传递值来执行一个方法，方法将返回我的 hashmap（集合）值（我不知道这是否可能）。请给我这方面的建议。

回答by Ivaylo Strandjev

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

要在命令行中执行 jar 文件，请使用java.exe -jar <jar_name>.

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

看看这里，看看如何执行命令行程序并在C#.

回答by Igor Mascarenhas

This works for me

这对我有用

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