我使用Jython将字符串值传递给python脚本。在我的节目里,我做了好几次。但是,在我运行的测试中,为了查看发送参数的类是否正常工作,我看到python脚本输出的字符串值与初始输入相同。
下面是Java类:
public class SendToCal
{
PythonInterpreter interp = null;
StringWriter clout = null;
String [] arguments = null;
private String start=null,end=null,subject = null;
Properties props = new Properties();
public SendToCal(String start,String end, String subject)
{
try{
setInputs(start,end,subject);
arguments = getInputs(start,end,subject);
//---------------------------------------------
//---------------trying out jython test--------
props.setProperty("python.path","C:\\folder\\where\\I\\have\\stuff\\2.7-b1\\Lib', '__classpath__', '__pyclasspath__/");
PythonInterpreter.initialize(System.getProperties(), props,arguments);
this.interp = new PythonInterpreter();
clout = new StringWriter();
interp.setOut(clout);
interp.execfile("C:\\folder\\to\\file\\pyscript.py");
String outputStr = clout.toString();
System.out.println(outputStr);
clout.close();
}catch(IOException ex)
{
ex.printStackTrace();
}
}
public void setInputs(String start, String end, String sub)
{
this.start = start;
this.end = end;
this.subject = sub;
}
public String[] getInputs(String start, String end, String sub)
{
String [] arr = {this.start,this.end,this.subject};
return arr;
}
public static void main(String[] args) throws InterruptedException
{
String st2 = 2018+"-"+ 8 +"-"+ 6+ " " +"12:00";
String en2 = 2018+"-"+ 8 +"-"+ 6+ " " +"11:59";
String su2 = "YAY PYTHON AGAIN!!";
new SendToCal(st2, en2, su2);
TimeUnit.SECONDS.sleep(1);
String st = 1999+"-"+ 7 +"-"+ 17+ " " +"12:00";
String en = 1999+"-"+ 7 +"-"+ 17+ " " +"11:59";
String su = "YAY PYTHON!!";
new SendToCal(st, en, su);
}
}另外,下面是我的python脚本:
import sys
def pyscript(arg1,arg2,arg3):
print ("calling python function with parameters:")
print arg1
print arg2
print arg3
pyscript(sys.argv[0],sys.argv[1],sys.argv[2])我的问题是,当我用两个或更多完全不同的字符串数组调用Java构造函数时,python的输出是第一个数组输入的重复。任何帮助都是非常感谢的。
我得到以下输出:
calling python function with parameters:
2018-8-6 12:00
2018-8-6 11:59
YAY PYTHON AGAIN!!
calling python function with parameters:
2018-8-6 12:00
2018-8-6 11:59
YAY PYTHON AGAIN!!我希望:
calling python function with parameters:
2018-8-6 12:00
2018-8-6 11:59
YAY PYTHON AGAIN!!
calling python function with parameters:
1999-7-17 12:00
1999-7-17 11:59
YAY PYTHON AGAIN!!发布于 2018-10-02 15:29:36
应该只调用一次PythonInterpreter.initialize()方法。它在您的程序中被调用两次,并且第二次没有更新sys.argv。
解决这一问题的一种方法是使用pyscript.py作为模块,并调用模块中定义的函数。
将interp.execfile("pyscript.py");替换为如下所示:
interp.exec("from pyscript import pyscript");
PyObject func = interp.get("pyscript");
func.__call__(new PyString(start), new PyString(end), new PyString(subject));https://stackoverflow.com/questions/51715687
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