所以我试图用这样的shell输出来(实时)更新QTextEdit
:
txtDirb = QTextEdit()
dirb_command = "dirb" + " " + url
p = subprocess.Popen([dirb_command], stdout=subprocess.PIPE, shell=True)
out = p.stdout.read()
txtDirb.append(str(out)) # buggy!
当然,这不会实时更新,而是等待整个命令执行,然后填充QTextEdit
。有没有办法实现实时更新?
谢谢。
请勿使用subprocess.Popen()
,因为它会阻塞并且只会在执行结束时为您提供结果,而请使用QProcess
:
import sys
from PyQt5 import QtCore, QtWidgets
class Widget(QtWidgets.QWidget):
def __init__(self, parent=None):
super().__init__(parent)
self.process = QtCore.QProcess(self)
self.process.setProgram("dirb")
self.process.setProcessChannelMode(QtCore.QProcess.MergedChannels)
self.lineedit = QtWidgets.QLineEdit("http://webscantest.com")
self.button = QtWidgets.QPushButton("Start")
self.textedit = QtWidgets.QTextEdit()
lay = QtWidgets.QGridLayout(self)
lay.addWidget(self.lineedit, 0, 0)
lay.addWidget(self.button, 0, 1)
lay.addWidget(self.textedit, 1, 0, 1, 2)
self.button.clicked.connect(self.on_clicked)
self.process.readyReadStandardOutput.connect(self.on_readyReadStandardOutput)
self.process.finished.connect(self.on_finished)
@QtCore.pyqtSlot()
def on_clicked(self):
if self.button.text() == "Start":
self.textedit.clear()
self.process.setArguments([self.lineedit.text()])
self.process.start()
self.button.setText("Stop")
elif self.button.text() == "Stop":
self.process.kill()
@QtCore.pyqtSlot()
def on_readyReadStandardOutput(self):
text = self.process.readAllStandardOutput().data().decode()
self.textedit.append(text)
@QtCore.pyqtSlot()
def on_finished(self):
self.button.setText("Start")
if __name__ == "__main__":
app = QtWidgets.QApplication(sys.argv)
w = Widget()
w.show()
sys.exit(app.exec_())