python 调用 java access bridge

  • Z时代
  • 2024-02-09
  • 分类：IT

python 调用 java access bridge

在github上找到的python应用jab实例，基本上可以使用了，能够得到applet上控件的属性值，也能给文本框赋值，点击按钮等操作都成功了，但又出现了一个新问题，点击按钮之后，网页中的applet需要响应1秒钟左右才会出现新的内容，我想做的是把一些数据逐一输入到文本框中，然后点击按钮，取出applet刷新出来的新东西，重复这个动作。但问题是这个循环动作只能进行一两次，python就自动退出了，更多的时候是只进行一次，最下面那句print('click' finished)还没运行就退出了，这是啥原因？

补充一点，发现一个新问题，当代码正在运行的时候，如果我手动操控一下那个applet，比如点一下按钮。python代码就会自动终止并退出了。当模拟点击button事件之后，那个applet会做出响应，在一个文本框中出现一些数据，这时候phthon代码非常容易自动终止，这是啥原因？

发现了问题所在，在python 代码运行过程中，只要某一个变量和applet发生了关联，即通过jab获取了applet上的某个控件，那么此时如果这个applet的状态发生了变动，那么python的kernel就很容易发生崩溃，比如click事件发出后，applet会做出响应，在文本窗中出现一些信息，此时python kernel就崩溃了，具体的根源是啥不清楚，也不知道咋解决

import ctypes
import  ctypes.wintypes
import threading
user32 = ctypes.windll.user32
import time
#=================================================================
def initialize():
bridgeDll = cdll.LoadLibrary(r'C:\XXX\windowsaccessbridge-64.dll')
    # Accept wm_copydata and any wm_user messages from other processes even if running with higher privileges
    if not windll.user32.ChangeWindowMessageFilter(winUser.WM_COPYDATA, 1):
        raise WinError()
    for msg in range(winUser.WM_USER + 1, 0xffff):
        if not windll.user32.ChangeWindowMessageFilter(msg, 1):
            raise WinError()
    bridgeDll.Windows_run()
#=================================================================
class MyThread(threading.Thread):
    def run(self):
        msg = ctypes.wintypes.MSG()
        initialize()
        while user32.GetMessageW(ctypes.byref(msg), None, 0, 0):
            user32.TranslateMessage(msg)
            user32.DispatchMessageW(msg)
        print('End of GetMessageW')
#=================================================================
#call dll initialize in the thread
t = MyThread()
t.start()
time.sleep(1)
#=================================================================
hwnd = 0x000D0E7A
print('java window is ', isJavaWindow(hwnd))    # java window is 1
#=================================================================
#To create instance
class JABContext(object):
    def __init__(self,hwnd=None,vmID=None,accContext=None):
        if hwnd and not vmID:
            vmID=c_long()
            accContext=JOBJECT64()
            bridgeDll.getAccessibleContextFromHWND(hwnd,byref(vmID),byref(accContext))
            #Record  this vm ID and window handle for later use with other objects
            vmID=vmID.value
            vmIDsToWindowHandles[vmID]=hwnd
        elif vmID and not hwnd:
            hwnd = getWindowHandleFromAccContext(vmID,accContext)
        self.hwnd=hwnd
        self.vmID=vmID
        self.accContext=accContext
    def getAccessibleContextInfo(self):
        info=AccessibleContextInfo()
        bridgeDll.getAccessibleContextInfo(self.vmID,self.accContext,byref(info))
        return info
    def getAccessibleTextItems(self,index):
            textItemsInfo=AccessibleTextItemsInfo()
            bridgeDll.getAccessibleTextItems(self.vmID,self.accContext,byref(textItemsInfo),index)
            return textItemsInfo
    def getAccessibleChildFromContext(self,index):
        accContext=bridgeDll.getAccessibleChildFromContext(self.vmID,self.accContext,index)
        if accContext:
            return self.__class__(self.hwnd,self.vmID,accContext)
        else:
            return None
#To input words into text controls
    def setTextContents(self, word):
        bridgeDll.setTextContents(self.vmID,self.accContext,word)
#To get actions structure
    def getAccessibleActions(self):
        info = AccessibleActions()
        bridgeDll.getAccessibleActions(self.vmID,self.accContext,byref(info))
        return info
#To do actions click
    def doAccessibleActions(self, AccessibleActionsToDo):
        info = AccessibleActionsToDo
        failure = jint()
        bridgeDll.doAccessibleActions(self.vmID,self.accContext,byref(info),byref(failure))
        return failure
Jab = JABContext(hwnd = hwnd,vmID = None, accContext = None)
Textbox = Jab.getAccessibleChildFromContext(index = 0)
button = Jab.getAccessibleChildFromContext(index = 1)
#=================================================================
list_test = [1,2,3,4,5]
for num in list_test:
#set text 
        Textbox.setTextContents(num)
        TempNum = Textbox.getAccessibleTextItems(index = 0).word
        if TempNum != num:
                print('input error')
        print('input finished')
#click on button
    getAccessibleActions = button.getAccessibleActions()
        aa = button.doAccessibleActions(getAccessibleActions)
        if aa == 0:
                print('click failure')
    print('click' finished)

以上是 python 调用 java access bridge 的全部内容， 来源链接： utcz.com/p/937951.html

回到顶部