Question

我需要在我的Java应用程序中运行一个Python脚本（写入输入和读取输出），最终将上传到Web上。我如何做到这一点，使其与网络兼容？我在Java中尝试了Jython和Runtime.exec()之类的东西，我认为两者都需要在计算机上安装Python（如果我错了，请纠正我）但我希望应用程序能够由网络上的任何人管理。

Python脚本导入win32com.client以对COM对象进行操作。它读入.csv文件，运行外部软件，然后使用RCSV（...），Run（...）和WCSV（...）方法写入.csv文件。我希望直接从我的Java应用程序访问这些数据，而不是.csv文件。这是我的python脚本完整的参考：

import win32com.client
from win32com.client import VARIANT
import csv

# This will import VT_VARIANT
import pythoncom

#dictionary function designed to read .csv file
def RCSV(address):
        input=[]
        csv_reader = csv.DictReader(open(address, 'r'), delimiter=',', quotechar='"')
        headers = csv_reader.fieldnames
        for line in csv_reader:
                for i in range(len(csv_reader.fieldnames)):
                        input.append(line[csv_reader.fieldnames[i]])
        InVal=[]
        for i in range(int(len(input)/len(headers))):
                InVal.append([])
        for i in range(len(InVal)):
                for j in range(i*len(headers), (i+1)*len(headers)):
                        InVal[i].append(input[j])
        return InVal

#dictionary function which writes a .csv file given its address
def WCSV(address, output, headers):
    with open(address, 'w') as csvfile:
        writer = csv.DictWriter(csvfile, fieldnames=headers, lineterminator = '\n')
        writer.writeheader()

        for i in range(len(output[0])):
            writer.writerow({headers[x]: output[x][i] for x in range(len(headers))})

def Run(InType,InDesc,InVal,OutType,OutDesc):
    FieldArray = VARIANT(pythoncom.VT_VARIANT | pythoncom.VT_ARRAY, InDesc)
    AllValueArray=[None]*len(InVal)

    for i in range(len(InVal)):
        AllValueArray[i]=VARIANT(pythoncom.VT_VARIANT | pythoncom.VT_ARRAY, InVal[i])

    object.ChangeParametersMultipleElement(InType, FieldArray, AllValueArray)
    object.RunScriptCommand("SolvePowerFlow")
    OutVal = object.GetParametersMultipleElement(OutType, OutDesc,'')
    return OutVal

# This will establish the connection
object = win32com.client.Dispatch("pwrworld.SimulatorAuto") 
filename= r"C:\Users\janusz\Desktop\NTU microgrid topology\ICESO Scaledown microgrid.pwb"
object.OpenCase(filename)

# Reading inputs from a .csv
ADIN='IN.csv'
InVal = RCSV(ADIN)

InType = "GEN"
InDesc = ["BusNum", "GenID", "GenMW"]

OutType = "BUS"
OutDesc = ["BUSNUM", "BUSNAME", "BUSPUVOLT", "BUSANGLE", "BUSKVVOLT"]

OutVal = Run(InType,InDesc,InVal,OutType,OutDesc)
ADOUT='OUT.csv'
WCSV(ADOUT,OutVal[1],OutDesc)

#This will close the connection
del object
object = None

Answer 1

Jython在没有安装Python的情况下工作，因为它是Python的100％Java实现。话虽这么说，只有win32个客户端可以运行win32 COM。所以，除了win32之外，它永远不会在任何平台上兼容（并且可能通过哇赢得64）。

如何在Java Web应用程序中运行Python脚本？

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