一、環境準備

1.Python 3.6 64位+jre 64位+win64位（jre和Python位數一致）

2.安裝jpype，安裝的時候輸入 pip install jpype1

2.1安裝提示error: Microsoft Visual C++ 14.0 is required...

解決辦法：https://blog.csdn.net/tayhh/article/details/78601889

二、兩種呼叫jar包的方法

1.通過命令列

import subprocess
import chardet
import sys

class AES(object):
    def __init__(self, data):
        self.data = data

    def encrypt(self):
        command = "java -jar testImportJar.jar"
        arg0 = self.data
        cmd = [command,arg0]
        new_cmd = " ".join(cmd)
        stdout,stderr = subprocess.Popen(new_cmd,stdout=subprocess.PIPE,stderr=subprocess.PIPE).communicate()
        encoding = chardet.detect(stdout)["encoding"]
        result = stdout.decode(encoding)
        return result

if __name__ == '__main__':
    data = sys.argv[0]
    AES = AES("222")
    print(AES.encrypt())
2.通過Jpype
 

import jpype
jvmPath = jpype.getDefaultJVMPath()
jvmPath = r'C:\Program Files\Java\jre1.8.0_65\bin\server\jvm.dll'#python 2.X用ur，Python 3.X用r
jpype.startJVM(jvmPath)
PWD = "&*($HJDGH4867%&T345386754OHYOH*^(ughiuR5fu&f&$KHAOS$&^%"
jpype.java.lang.System.out.println("hello")
jpype.shutdownJVM()