使用Javascript的Adobe Air2 NativeProcess API

时间:2010-09-03 07:54:12

标签: javascript python air

我正在尝试使用Javascript中的NativeProcess API启动python脚本。 在Adobe AIR API Reference for HTML Developers我发现了一个很好的例子,但它不起作用。我查了很多其他的例子,但仍然找不到答案。

以下是html文件的示例代码:

<html>
   <head>
   <title>Test</title>
   <script type="text/javascript" src="AIRAliases.js"></script>
   <script type="text/javascript"> 

        var process;

        function launchProcess()
        {
            if(air.NativeProcess.isSupported)
            {
                air.trace("NativeProcess supported.");
    setupAndLaunch();
            }
            else
            {
                air.trace("NativeProcess not supported.");
            }
        }

        function setupAndLaunch()
        {     
            var nativeProcessStartupInfo = new air.NativeProcessStartupInfo();
            var file = air.File.applicationDirectory.resolvePath("test.py");
            nativeProcessStartupInfo.executable = file;

            var processArgs = new air.Vector["<String>"]();
            processArgs.push("foo");
            nativeProcessStartupInfo.arguments = processArgs;

            process = new air.NativeProcess();
            process.start(nativeProcessStartupInfo);
            process.addEventListener(air.ProgressEvent.STANDARD_OUTPUT_DATA, onOutputData);
            process.addEventListener(air.ProgressEvent.STANDARD_ERROR_DATA, onErrorData);
            process.addEventListener(air.NativeProcessExitEvent.EXIT, onExit);
            process.addEventListener(air.IOErrorEvent.STANDARD_OUTPUT_IO_ERROR, onIOError);
            process.addEventListener(air.IOErrorEvent.STANDARD_ERROR_IO_ERROR, onIOError);
        }

        function onOutputData()
        {
            air.trace("Got: ", process.standardOutput.readUTFBytes(process.standardOutput.bytesAvailable)); 
        }

        function onErrorData(event)
        {
            air.trace("ERROR -", process.standardError.readUTFBytes(process.standardError.bytesAvailable)); 
        }

        function onExit(event)
        {
            air.trace("Process exited with ", event.exitCode);
        }

        function onIOError(event)
        {
             air.trace(event.toString());
        }

   </script>
   </head>

   <body onload="launchProcess()">
   </body>
</html>

这里是python文件的代码(它不起作用):

#! /usr/bin/env python2.5
# -*- coding: utf-8 -*-

import sys

for word in sys.argv: #echo the command line arguments
 print word

print "HI FROM PYTHON"
print "Enter user name" 
line = sys.stdin.readline()

sys.stdout.write("hello," + line)

使用命令adl main.xml运行Air App仅在我的终端(我使用OSX)中显示“NativeProcess支持。”

感谢您的帮助。

这里是我对python文件所做的更改,以使其正常工作:

#! /usr/bin/env python2.5
# -*- coding: utf-8 -*-

import sys
import os

def convert(args):
 path = os.path.expanduser('~') + "/Desktop/"

 myFile = open(path+args, 'w')
 myFile.write('Hello World\n')
 myFile.close()

 sys.stdout.write("Python Done")

if __name__ == "__main__":
 convert(sys.argv[1])

感谢pyfunc ...

1 个答案:

答案 0 :(得分:0)

如果您运行程序,则输出如下:

test.py
HI FROM PYTHON
Enter user name

这就是这段python代码正在寻找标准输入并写入标准输出。 如果你不从shell运行它,我认为这是不可能的。

如何移除:

line = sys.stdin.readline()
sys.stdout.write("hello," + line)

并做一些无害的python表达式,如

a = 1+4 

看看,如果可行的话。我预感到这可能是一个问题。