pyqt实现百度云识别图片

PyQt环境配置

PyQt5 及 pyqt5-tools 安装

直接pip安装即可：

pip install PyQt5
pip install pyqt5-tools

建议使用国内源，进行快速安装：

pip install -i https://pypi.tuna.tsinghua.edu.cn/simple pyqt5
pip install -i https://pypi.tuna.tsinghua.edu.cn/simple pyqt5-tools

PyCharm配置环境

启动PyCharm后，新建一个PyQt5空项目后，需要配置Qt Designer、pyuic、pyrcc工具，相关配置方法如下：

Qt Designer

Qt Designer 是通过拖拽的方式放置控件，并实时查看控件效果进行快速UI设计。

最终生成.ui文件（实质上是XML格式的文件），可以通过pyuic5工具转换成.py文件。

在Pycharm中，依次打开 File - Settings - Tools - External Tools，点击 + Create Tool，配置如下：

Name: QtDisigner
Program : C:\Python38\Lib\site-packages\pyqt5_tools\Qt\bin\designer.exe # 当前designer目录，请根据实际修改
Working directory: $FileDir$

PyUIC配置

PyUIC主要是把Qt Designer生成的.ui文件换成.py文件。

在Pycharm中，依次打开 File - Settings - Tools - External Tools，点击 + Create Tool，配置如下：

Name: PyUIC
Program : C:\Python38\python.exe # 当前Python目录，请根据实际修改
Arguments: -m PyQt5.uic.pyuic $FileName$ -o $FileNameWithoutExtension$.py
Working directory: $FileDir$

PyRCC配置

PyRCC主要是把编写的.qrc资源文件换成.py文件。

在Pycharm中，依次打开 File - Settings - Tools - External Tools，点击 + Create Tool，配置如下：

Name: PyRCC
Program : C:\Python38\Scripts\pyrcc5.exe # 当前rcc工具目录，请根据实际修改
Arguments: $FileName$ -o $FileNameWithoutExtension$_rc.py
Working directory: $FileDir$

实例开发

目录结构

设计界面UI

我们主要用到的控件有Button, GroupBox, Label,ComboBox,TextEdit，同时定义了两个按钮queryBtn及clearBtn，分别用来查询及清空天气数据。我们需要绑定槽函数，方法如下：

1. 在Qt Designer右下角选择 信号/槽编辑器，点击+号新增
2. 分别选择queryBtn及clearBtn，选择信号 clicked(), 接收者 Dialog 及槽 accept() （我没找到绑定自定义槽函数的方法...）

转换.ui文件为.py文件

在PyCharm中选中Weather.ui文件后，右键选择 External Tools - PyUIC，即可生成Weather.py，实际运行命令如下：

C:\Python38\python.exe -m PyQt5.uic.pyuic Weather.ui -o Weather.py

其中，我们需要把两个按钮绑定的槽函数：

self.queryBtn.clicked.connect(Dialog.accept)
self.clearBtn.clicked.connect(Dialog.accept)

修改为自定义函数：

self.queryBtn.clicked.connect(Dialog.queryWeather)
self.clearBtn.clicked.connect(Dialog.clearText)

完整代码

mainUI.py

# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file 'main.ui'
#
# Created by: PyQt5 UI code generator 5.15.4
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(800, 600)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.getpictureButton = QtWidgets.QPushButton(self.centralwidget)
        self.getpictureButton.setGeometry(QtCore.QRect(160, 420, 93, 28))
        self.getpictureButton.setObjectName("getpictureButton")
        self.putnetButton = QtWidgets.QPushButton(self.centralwidget)
        self.putnetButton.setGeometry(QtCore.QRect(450, 420, 121, 28))
        self.putnetButton.setObjectName("putnetButton")
        self.picturelabel = QtWidgets.QLabel(self.centralwidget)
        self.picturelabel.setGeometry(QtCore.QRect(120, 110, 191, 161))
        self.picturelabel.setText("")
        self.picturelabel.setObjectName("picturelabel")
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 26))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        self.getpictureButton.clicked.connect(MainWindow.getpicture)
        self.putnetButton.clicked.connect(MainWindow.putnet)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.getpictureButton.setText(_translate("MainWindow", "选择图片"))
        self.putnetButton.setText(_translate("MainWindow", "上传网络验证"))

execute.py

from Test03 import mainUI
import sys
from PyQt5.QtWidgets import QApplication, QDialog,QMainWindow,QFileDialog,QLabel
from PyQt5.QtGui import QPixmap
import requests
import base64


class Execute(QMainWindow):

    def __init__(self,parent=None):
        super(Execute, self).__init__(parent=parent)
        self.picture = ""
        self.ui = mainUI.Ui_MainWindow()
        self.ui.setupUi(self)


    def getpicture(self):
        # 从文件夹中选择图片
        print("进入方法")
        self.picture = QFileDialog.getOpenFileName(self, "选取文件", "./", "All Files (*);")
        pixmap = QPixmap(self.picture[0])  # 按指定路径找到图片
        self.ui.picturelabel.setPixmap(pixmap)  # 在label上显示图片
        self.ui.picturelabel.setScaledContents(True)  # 让图片自适应label大小



    def putnet(self):
        global token
        if(self.picture==""):
            print("还没有文件路径")
        else:
            print(self.picture[0])
            request_url = "https://aip.baidubce.com/rest/2.0/image-classify/v1/animal"
            # 二进制方式打开图片所属的[本地文件]
            f = open(self.picture[0], 'rb')
            img = base64.b64encode(f.read())

            # client_id 为官网获取的AK， client_secret 为官网获取的SK
            host = 'https://aip.baidubce.com/oauth/2.0/token?grant_type=client_credentials&client_id=EAfwVdTTmzwLTjH7IdEmQyTI&client_secret=36IvC9Ex7yEKW9ljZMyF314jSWreRw3L'
            response = requests.get(host)
            if response:
                token = response.json()['refresh_token']

            params = {"image": img}
            # 可将其替换为token
            access_token = '百度token'
            print(token)
            request_url = request_url + "?access_token=" + access_token
            headers = {'content-type': 'application/x-www-form-urlencoded'}
            response = requests.post(request_url, data=params, headers=headers)
            if response:
                print(response.json())


if __name__ == '__main__':
    myapp = QApplication(sys.argv)
    myDlg = Execute()
    myDlg.show()
    sys.exit(myapp.exec_())