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发表于 2024-4-16 15:07:53
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显示全部楼层
import sys
from PySide6.QtWidgets import QApplication, QMainWindow, QVBoxLayout, QWidget, QPushButton, QLabel, QTextEdit
from PySide6.QtCore import Qt, QUrl
from PySide6.QtNetwork import QNetworkAccessManager, QNetworkRequest
class WebCrawlerApp(QMainWindow):
def __init__(self):
super().__init__()
self.setWindowTitle("Web Crawler")
self.setGeometry(100, 100, 600, 400)
# 主布局
layout = QVBoxLayout()
# 输入网址的文本框
self.url_edit = QTextEdit()
self.url_edit.setPlaceholderText("Enter URL here")
layout.addWidget(self.url_edit)
# 显示爬取的文本的文本框
self.result_text = QTextEdit()
self.result_text.setReadOnly(True)
layout.addWidget(self.result_text)
# 开始执行按钮
self.start_button = QPushButton("Start")
self.start_button.clicked.connect(self.start_crawling)
layout.addWidget(self.start_button)
# 退出按钮
self.exit_button = QPushButton("Exit")
self.exit_button.clicked.connect(self.close)
layout.addWidget(self.exit_button)
# 创建中心窗口部件并设置布局
central_widget = QWidget()
central_widget.setLayout(layout)
self.setCentralWidget(central_widget)
# 创建网络访问管理器
self.network_manager = QNetworkAccessManager()
self.network_manager.finished.connect(self.handle_response)
def start_crawling(self):
# 获取用户输入的网址
url = self.url_edit.toPlainText().strip()
if not url:
self.result_text.setPlainText("Please enter a valid URL.")
return
# 发起网络请求
request = QNetworkRequest(QUrl(url))
self.network_manager.get(request)
def handle_response(self, reply):
if reply.error():
error_message = f"Error: {reply.errorString()}"
self.result_text.setPlainText(error_message)
return
# 读取响应内容并显示在界面上
data = reply.readAll().data()
self.result_text.setPlainText(data.decode("utf-8"))
def main():
app = QApplication(sys.argv)
window = WebCrawlerApp()
window.show()
sys.exit(app.exec())
if __name__ == "__main__":
main()
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