c# - 尝试使用 C# 执行命令行脚本时出现 System.InvalidOperation 异常

Question

我正在尝试使用 phantomjs 执行生成 PDF 文件的命令.

如果我使用命令提示符执行以下命令，一切正常。

C:\phantomjs-2.1.1\bin\phantomjs.exe C:\phantomjs-2.1.1\rasterize.js http://localhost:9992/index.html outputFile.pdf A4 landscape 0.1in

如果我尝试使用 C# 执行相同的操作，我会看到

System.InvalidOperation exception.

这是我使用的代码:

ProcessStartInfo startInfo = new ProcessStartInfo();
var url = "http://localhost:9992/index.html"
startInfo.CreateNoWindow = false;
startInfo.UseShellExecute = false ; 
startInfo.FileName = "C:\phantomjs-2.1.1\bin\phantomjs.exe";
startInfo.WindowStyle = ProcessWindowStyle.Normal;

startInfo.Arguments = @"/c /K C:\phantomjs-2.1.1\rasterize.js " + url + "C:\temp\output.pdf A4 landscape 0.1in";

try
{
    // Start the process with the info we specified.
    // Call WaitForExit and then the using statement will close.
    using (Process exeProcess = Process.Start(startInfo))
    {
        exeProcess.WaitForExit();
    }
}
catch
{
    // Log error.
}

调试时请查看下图供inspector使用。

Answer 1

ProcessStartInfo startInfo = new ProcessStartInfo();
var url = "http://localhost:9992/index.html"
startInfo.CreateNoWindow = false;
startInfo.UseShellExecute = false ; // This must be false to use env variable
startInfo.FileName = @"C:\phantomjs-2.1.1\bin\phantomjs.exe";
startInfo.WindowStyle = ProcessWindowStyle.Normal;

startInfo.Arguments = @" C:\phantomjs-2.1.1\rasterize.js " + url + @" C:\phantomjs-2.1.1\output.pdf A4 landscape 0.1in";

try
{
    using (Process exeProcess = Process.Start(startInfo))
    {
        exeProcess.WaitForExit();
    }
}
catch
{
    // Log error.
}