[Java/Python] java调用python脚本问题记录

时间：2018-09-02 13:58:10 阅读：189 评论：0 收藏：0 [点我收藏+]

标签：runtime catch strong 导致第三方库方便 input use private

Java调用Python的的两种方式

1.Runtime

private static String call_python(String input_argv)
    {
        String python_py = "C:/Users/lichaoxing/Desktop/python_test.py";
        String result = null;
        try {
            String[] args1 = new String[] { "python", python_py, input_argv};
            Process proc=Runtime.getRuntime().exec(args1);
            InputStreamReader stdin=new InputStreamReader(proc.getInputStream());
            LineNumberReader input=new LineNumberReader(stdin);
            result = input.readLine();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return result;
    }

2.jython

public class jython
{
  public static void main(String[] args)throws Exception
  {
      try 
      {
            PythonInterpreter interpreter = new PythonInterpreter();
          interpreter.execfile("C:\\Users\\lichaoxing\\Desktop\\hello.py");

          PyFunction pyFunction = interpreter.get("hello", PyFunction.class);
          PyObject pyObject = pyFunction.__call__(); 

          System.out.println(pyObject);
      }catch(Exception e) 
      {
          e.printStackTrace();
      }
      
  }
}