如何使用Buildozer为Oracle数据库构建Android应用程序？

Question

我在基维有一个大问题。你可以帮我吗？

我为我的公司开发库存控制应用程序。我的公司使用Oracle数据库。我用Kivy，Python编写代码，并使用cx_Oracle连接我们的数据库。它在我个人电脑上的工作非常完美但它不适用我的Android手机。我使用Buildozer构建APK。我采取错误后，我写日志。这是我得到的错误：

python : ImportError: No module named cx_Oracle 

我的Android手机没有找到cx_Oracle。我没有通过手机访问Oracle数据库，应用程序无法运行。有什么方法可以建议吗？

#!/usr/local/bin/python 
    # -*- coding: UTF-8 -*- 

    from kivy.app import App 
    from kivy.lang import Builder 
    from kivy.uix.screenmanager import ScreenManager, Screen, SlideTransition 
    from kivy.uix.relativelayout import RelativeLayout 
    from kivy.properties import StringProperty 
    from kivy.network.urlrequest import UrlRequest 
    from kivy.uix.gridlayout import GridLayout 
    from kivy.uix.label import Label 
    from kivy.uix.dropdown import DropDown 
    from kivy.uix.textinput import TextInput 
    from kivy.properties import ListProperty 
    from kivy.uix.floatlayout import FloatLayout 
    import cx_Oracle 
    import os, sys 

    Builder.load_string(''' 

    #:import Button kivy.uix.button.Button 

    <GirisEkrani>: 
     BoxLayout: 
      id: login_layout 
      orientation: 'vertical' 
      padding: [10,50,10,50] 
      spacing: 50 

      BoxLayout: 
       orientation: 'vertical' 

       Label: 
        text: '*' 
        font_size: 18 
        halign: 'left' 
        text_size: root.width-20, 20 

       TextInput: 
        id: username 
        multiline:False 
        font_size: 28 
      BoxLayout: 
       orientation: 'vertical' 

       Label: 
        text: '*' 
        halign: 'left' 
        font_size: 18 
        text_size: root.width-20, 20 
       TextInput: 
        id: passwd 
        multiline:False 
        password:True 
        font_size: 28 

      Button: 
       text: "*" 
       font_size: 24 
       on_press: root.login() 


    <GirisOnayEkrani>: 
     karsilama_yazisi: karsilama_yazisi 

     BoxLayout: 
      id: kutu 
      orientation: "vertical" 
      padding: [10,50,10,50] 
      spacing: 50 

      Image: 
       source: "./dogru.png" 
      Label: 
       id: karsilama_yazisi 
       text: "*" 

      Button: 
       text: "Stok Kontrol" 
       font_size: 24 
       on_press: root.envanter() 

      Button: 
       text: "*" 
       font_size: 24 
       on_press: root.talepsikayet() 



    <GirisRedEkrani>: 
     BoxLayout: 
      orientation: "vertical" 
      Image: 
       source: "./yanlis.png" 
      Label: 
       text: "*" 
      Button: 
       text: "*" 
       on_press: root.anaEkranaDon() 

    <EnvanterKontrolEkrani>: 
     BoxLayout: 
      orientation: "vertical" 
      padding: [50,150,50,150] 
      spacing: 300 

      Button: 
       text: "*" 
       size_hint_y: None 
       font_size: 20 
       on_press: root.ekle() 

      AnchorLayout: 
       anchor_x: 'center' 
       anchor_y: 'center' 

       ScrollView: 
        size_hint_y: None 
        height: '500dp' 

        MyGrid: 
         cols: 3 
         size_hint_y: None 
         height: self.minimum_height 
         spacing: '2dp' 

    <EklemeEkrani>: 
     BoxLayout: 
      id: login_layout 
      orientation: 'vertical' 
      padding: [10,50,10,50] 
      spacing: 30 

      BoxLayout: 
       orientation: 'vertical' 

       Label: 
        text: "*" 
        font_size: 18 
        halign: 'left' 
        text_size: root.width-20, 20 

       TextInput: 
        id: partno 
        multiline:False 
        font_size: 28 
      BoxLayout: 
       orientation: 'vertical' 

       Label: 
        text: '*' 
        halign: 'left' 
        font_size: 18 
        text_size: root.width-20, 20 
       TextInput: 
        id: miktar 
        multiline:False 
        font_size: 28 

      BoxLayout: 
       orientation: 'vertical' 

       Label: 
        text: '*' 
        halign: 'left' 
        font_size: 18 
        text_size: root.width-20, 20 
       TextInput: 
        id: tarih 
        multiline:False 
        font_size: 28 

      Button: 
       text: "*" 
       font_size: 24 
       on_press: root.eklemek() 



    <TalepSikayetEkrani>: 
     BoxLayout: 
      id: login_layout 
      orientation: 'vertical' 
      padding: [10,50,10,50] 
      spacing: 15 


      BoxLayout: 
       orientation: 'vertical' 

       Label: 
        text: '*' 
        halign: 'left' 
        font_size: 16 
        text_size: root.width-20, 20 

       ComboEdit: 
        id: birim 
        multiline:False 
        font_size: 20 
        options: 
         [Button(text = '*', size_hint_y=None, height=30), 
         Button(text = '*', size_hint_y=None, height=30), 
         Button(text = '*', size_hint_y=None, height=30)] 

      BoxLayout: 
       orientation: 'vertical' 

       Label: 
        text: '*' 
        halign: 'left' 
        font_size: 16 
        text_size: root.width-20, 20 

       ComboEdit: 
        id: form 
        multiline:False 
        font_size: 20 
        options: 
         [Button(text = '*', size_hint_y=None, height=30), 
         Button(text = '*', size_hint_y=None, height=30), 
         Button(text = '*', size_hint_y=None, height=30)] 

      BoxLayout: 
       orientation: 'vertical' 

       Label: 
        text: '*' 
        halign: 'left' 
        font_size: 16 
        text_size: root.width-20, 20 

       ComboEdit: 
        id: onem 
        multiline:False 
        font_size: 20 
        options: 
         [Button(text = '*', size_hint_y=None, height=30), 
         Button(text = '*', size_hint_y=None, height=30), 
         Button(text = '*', size_hint_y=None, height=30)] 

      BoxLayout: 
       orientation: 'vertical'   
       Label: 
        text: '*' 
        halign: 'left' 
        font_size: 18 
        text_size: root.width-20, 20 
       TextInput: 
        id: konu 
        multiline:False 
        font_size: 20 


      BoxLayout: 
       orientation: 'vertical'   
       Label: 
        text: '*' 
        halign: 'left' 
        font_size: 18 
        text_size: root.width-20, 20 
       TextInput: 
        id: mesaj 
        multiline:False 
        font_size: 20 

      Button: 
       text: "*" 
       font_size: 24 
       on_press: root.formekle() 


    <TalepSikayetOnayEkrani>: 
     karsilama_yazisi: karsilama_yazisi 

     BoxLayout: 
      id: kutu 
      orientation: "vertical" 
      padding: [10,50,10,50] 
      spacing: 50 

      Image: 
       source: "./true.png" 
      Label: 
       id: karsilama_yazisi 
       text: "*" 

      Button: 
       text: "Anasayfaya Don" 
       font_size: 24 
       on_press: root.anasayfa() 



    <PlayerRecord>: 
     size_hint_y: None 
     height: '30dp' 
     width: '100dp' 

     canvas.before: 
      Color: 
       rgb: 0.2, 0.2, 0.2 
      Rectangle: 
       pos: self.pos 
       size: self.size 


    <RootWidget>: 
     canvas.before: 
      Color: 
       rgba: 0, 0, 0, 1 
      Rectangle: 
       pos: self.pos 
       size: self.size 
     id: kok 
     GirisEkrani: 
      id: giris 
      name: "giris_ekrani" 
     GirisOnayEkrani: 
      id: onay 
      name: "giris_basarili" 
     GirisRedEkrani: 
      id: red 
      name: "giris_hatali" 
     EnvanterKontrolEkrani: 
      id:envanter 
      name: "envanter_kontrol" 
     EklemeEkrani: 
      id:ekle 
      name: "ekleme" 
     TalepSikayetEkrani: 
      id:talepsikayet 
      name: "talep_sikayet" 

     TalepSikayetOnayEkrani: 
      id:talepsikayetonay 
      name: "talep_onay" 

    ''') 




    class GirisEkrani(Screen): 
     def login(self): 
      if self.ids.username.text == "*" and\ 
       self.ids.passwd.text == "*": 

       self.manager.current = "giris_basarili" 

      else: 
       self.manager.current = "giris_hatali" 


    class GirisOnayEkrani(Screen): 
     def envanter(self): 
      self.manager.current = "envanter_kontrol" 
     def talepsikayet(self): 
      self.manager.current = "talep_sikayet" 

    class EnvanterKontrolEkrani(Screen): 
     def ekle(self): 
      self.manager.current = "ekleme" 

    class TalepSikayetEkrani(Screen): 
     def formekle(self): 
      if len(self.ids.birim.text) > 0 and\ 
       len(self.ids.form.text) > 0 and\ 
       len(self.ids.onem.text) > 0 and\ 
       len(self.ids.konu.text) > 0 and\ 
       len(self.ids.mesaj.text) > 0: 
       con = cx_Oracle.connect('*/*@*/*') 
       rows = [(str(self.ids.birim.text), str(self.ids.form.text), str(self.ids.onem.text), str(self.ids.konu.text), str(self.ids.mesaj.text))] 
       cur = con.cursor() 
       cur.executemany("INSERT INTO * (birim , form, onem, konu, mesaj) VALUES (:1, :2, :3, :4, :5)", rows) 
       con.commit() 
       self.manager.current = "talep_onay" 
       self.ids.birim.text = "" 
       self.ids.form.text = "" 
       self.ids.onem.text = "" 
       self.ids.konu.text = "" 
       self.ids.mesaj.text = "" 
      else: 
       self.manager.current = "giris_hatali" 


    class ComboEdit(TextInput): 

     options = ListProperty(('',)) 

     def __init__(self, **kw): 
      ddn = self.drop_down = DropDown() 
      ddn.bind(on_select=self.on_select) 
      super(ComboEdit, self).__init__(**kw) 

     def on_options(self, instance, value): 
      ddn = self.drop_down 
      ddn.clear_widgets() 
      for widg in value: 
       widg.bind(on_release=lambda btn: ddn.select(btn.text)) 
       ddn.add_widget(widg) 

     def on_select(self, *args): 
      self.text = args[1] 

     def on_touch_up(self, touch): 
      if touch.grab_current == self: 
       self.drop_down.open(self) 
      return super(ComboEdit, self).on_touch_up(touch) 


    class TalepSikayetOnayEkrani(Screen): 
     def anasayfa(self): 
      self.manager.current = "giris_ekrani" 


    class EklemeEkrani(Screen): 
     def eklemek(self): 
      if len(self.ids.partno.text) > 1 and\ 
       len(self.ids.miktar.text) > 1 and\ 
       len(self.ids.tarih.text) > 1: 
       con = cx_Oracle.connect('*/*@*/*') 
       rows = [(str(self.ids.partno.text), str(self.ids.miktar.text), str(self.ids.tarih.text))] 
       cur = con.cursor() 
       cur.executemany("INSERT INTO * (part_no, qty_on_hand, tarih) VALUES (:1, :2, :3)", rows) 
       con.commit() 
       self.manager.current = "giris_basarili" 
       self.ids.partno.text = "" 
       self.ids.miktar.text = "" 
       self.ids.tarih.text = "" 
      else: 
       self.manager.current = "giris_hatali" 




    class GirisRedEkrani(Screen): 
     def anaEkranaDon(self): 
      self.manager.current = "giris_ekrani" 


    class RootWidget(ScreenManager): 
     pass 


    class TableHeader(Label): 
     pass 


    class PlayerRecord(Label): 
     pass 


    class MyGrid(GridLayout): 

     def __init__(self, **kwargs): 
      super(MyGrid, self).__init__(**kwargs) 
      self.fetch_data_from_database() 
      self.display_scores() 

     def fetch_data_from_database(self): 
      con = cx_Oracle.connect('*/*@*/*') 

      cur=con.cursor() 
      cur.execute('''select part_no, qty_on_hand, tarih from *''') 

      liste =[{'Part No': 'Part No', 'Quantity On Hand': 'Quantity On Hand', 'Expiration Date': 'Expiration Date'}] 


      for result in cur: 

       liste.append({'Part No': result[0], 'Quantity On Hand': str(result[1]), 'Expiration Date': str(result[2])}) 

      self.data = liste 


     def display_scores(self): 
      self.clear_widgets() 
      for i in range(len(self.data)):   
       row = self.create_player_info(i) 
       for item in row: 
        self.add_widget(item) 


     def create_player_info(self, i): 
      first_column = PlayerRecord(text=self.data[i]['Part No']) 
      second_column = PlayerRecord(text=self.data[i]['Quantity On Hand']) 
      third_column = PlayerRecord(text=self.data[i]['Expiration Date']) 
      return [first_column, second_column, third_column] 

    class CemApp(App): 
     def build(self): 
      return RootWidget() 

    if __name__ in ('__main__','__android__'): 
     CemApp().run() 

注：我躲在我公司的数据用 “*”

Answer 1

您需要在您的APK的cx_Oracle模块。但是，cx_Oracle是一个已编译的C模块，因此python-for-android需要recipe才能编译它（参考here都是现有的配方）。还没有这样的配方，但你可以尝试写一个。你可能想要一个CompiledComponentsPythonRecipe。