从C＃启动.jar文件-找不到.properties文件

Question

I've been developing a webservice in C# where I have to convert Word docx files to PDF. After searching for a long time I settled on docx4j, a java library, to make the conversion. The .jar file works as expected when I run it from a command line, but when I start it from my C# code through System.Diagnostics.Process I get the following errors:

log4j:WARN No appenders could be found for logger (org.docx4j.jaxb.Context).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.

...

WARN org.docx4j.utils.ResourceUtils .getResource line 84 - Couldn't get resource: docx4j.properties
WARN org.docx4j.Docx4jProperties .init line 22 - Couldn't find/read docx4j.properties; docx4j.properties not found via classloader.

The C# code making the call looks like this:

        Process javaCall = new Process();

        var dir = HttpContext.Current.Server.MapPath("~");

        ProcessStartInfo startInfo = new ProcessStartInfo();
        startInfo.Arguments = "-Xmx2048m -jar \"" + dir + "\\App_Data\\DocxToPDF.jar\" \"" + sourcePath + "\"";
        startInfo.FileName = "\"" + System.Configuration.ConfigurationManager.AppSettings["JdkFilePath"] + "\"";
        startInfo.UseShellExecute = false;

        javaCall.StartInfo = startInfo;
        javaCall.Start();

        javaCall.WaitForExit();

I've checked the windows security settings on the .jar file and the directory it's in and both are set to full permissions to all users. I don't understand why I get different results from making a manual command line call and one from System.Diagnostics.Process.

I'd really appreciate some help and will provide more info if you need it.

Answer 1

Alright, so that answer turned out to be easier than I expected. By moving the .properties to the same folder as the .jar file instead of them being nested inside the program managed to find them...

I guess I should try the easy fixes first next time, thanks for your time.

Answer 2

You need to set environment variable Path of java.exe executable or specify the full path of java.exe.

ProcessStartInfo ps = new ProcessStartInfo(@"c:\\Program Files\\java\\jdk1.7.0\\bin\\java.exe",@"-jar C:\\Users\\Owner\\Desktop\\myJarFile.jar"); Process.Start(ps);

By default command line knows java path but ProcessStartInfodoes not know where is java