python基于tkinter制作无损音乐下载工具(附源码)

from tkinter import *
from tkinter import ttk
from tkinter import messagebox
from Music_Search_Engine import Spider
import threading
from tkinter.filedialog import askdirectory
import os

\'\'\'
1.加入e1绑定事件，b1=\'disable\'
2. 03.15-使用self.flag判断当前下载任务是否完成
3.实现UI和爬虫分离，返回实时进度
\'\'\'
class App:
 def __init__(self):
 self.w=Tk()
 self.w.title(\'Music_Search-v1.0\')
 self.w.resizable(0,0)
 self.flag=True
 width=400
 height=560
 left=(self.w.winfo_screenwidth()-width)/2
 top=(self.w.winfo_screenheight()-height)/2
 self.w.geometry(\'%dx%d+%d+%d\'%(width,height,left,top))
 self.create_widget()
 self.set_widget()
 self.place_widget()
 self.w.mainloop()

 def create_widget(self):
 self.e2_var=StringVar()
 self.r_choice=IntVar()
 self.l3_var=StringVar()
 self.l1=ttk.Label(self.w,text=\'关键字：\')
 self.e1=ttk.Entry(self.w)
 self.b1=ttk.Button(self.w,text=\'搜索\')
 self.l4 = ttk.Label(self.w, text=\'存储路径：\')
 self.e2 = ttk.Entry(self.w,textvariable=self.e2_var)
 self.b2 = ttk.Button(self.w, text=\'选择\')
 self.l2=ttk.Label(self.w,text=\'下载品质：\')
 self.r1=Radiobutton(self.w,text=\'标准\',value=1)
 self.r2=Radiobutton(self.w,text=\'高品\',value=2)
 self.r3=Radiobutton(self.w,text=\'无损\',value=3)
 self.b3=ttk.Button(self.w,text=\'下载\')
 self.listbox=Listbox(self.w)
 self.canvas = Canvas(self.w, bg=\"white\")
 self.l3=ttk.Label(self.w)
 self.m=Menu(self.w)
 self.w[\'menu\']=self.m
 self.s1=Menu(self.m,tearoff=False)
 self.s2=Menu(self.m,tearoff=False)
 self.s3=Menu(self.m,tearoff=False)

 def set_widget(self):
 self.b1.config(command=lambda:self.thread_it(self.search_music))
 self.e1.config(justify=\'center\')
 self.b2.config(command=self.open_file_savepath)
 self.r1.config(variable=self.r_choice,command=self.show_size,state=\'disable\')
 self.r2.config(variable=self.r_choice,command=self.show_size,state=\'disable\')
 self.r3.config(variable=self.r_choice,command=self.show_size,state=\'disable\')
 self.b3.config(command=lambda:self.thread_it(self.pre_download))
 self.canvas.config(width=380, height=20)
 self.w.bind(\'<<ListboxSelect>>\',self.show_info)
 self.e1.bind(\'<Return>\',self.do_search)
 self.w.protocol(\'WM_DELETE_WINDOW\',self.quit_window)
 self.w.bind(\'<Escape>\',self.do_escape)
 self.l3.config(textvariable=self.l3_var,background=\'lightblue\',justify=\'center\')
 self.l3_var.set(\'请先搜索\')
 self.listbox.config(state=\'disable\')
 self.abs_path = os.path.abspath(\'./\')
 self.e2_var.set(self.abs_path)
 self.e2.config(state=\'readonly\')
 self.b3.config(state=\'disable\')
 self.m.add_cascade(label=\'文件\',menu=self.s1)
 self.s1.add_command(label=\'打开文件夹\',command=self.open_dir)
 self.s1.add_separator()
 self.s1.add_command(label=\'退出\',command=self.quit_window)
 self.m.add_cascade(label=\'操作\',menu=self.s2)
 self.s2.add_command(label=\'搜索\',command=lambda:self.thread_it(self.search_music))
 self.s2.add_command(label=\'下载\',command=lambda:self.thread_it(self.pre_download))
 self.s2.entryconfig(\"下载\",state=DISABLED)
 self.m.add_cascade(label=\'关于\',menu=self.s3)
 self.s3.add_command(label=\'说明\',command=self.show_explian)

 def place_widget(self):
 self.l1.place(x=10,y=10)
 self.e1.place(x=80,y=10,width=200)
 self.b1.place(x=310,y=10,height=25,width=80)
 self.l2.place(x=10,y=80)
 self.r1.place(x=80,y=80)
 self.r2.place(x=160,y=80)
 self.r3.place(x=240,y=80)
 self.l4.place(x=10,y=50)
 self.e2.place(x=80,y=50,width=200)
 self.b2.place(x=310,y=45,height=25,width=80)
 self.b3.place(x=310,y=80,height=25,width=80)
 self.listbox.place(x=10,y=110,width=380,height=380)
 self.l3.place(x=0,y=520,width=400,height=35)
 self.canvas.place(x=10,y=492)

 def thread_it(self,func,*args):
 t=threading.Thread(target=func,args=args)
 t.setDaemon(True)
 t.start()

 def do_search(self,event):
 self.thread_it(self.search_music)

 def search_music(self):
 self.l3_var.set(\'\')
 self.listbox.delete(0,END)
 spider=Spider()
 if self.e1.get():
 self.music_list=spider.Get_Music_List(self.e1.get())
 if self.music_list:
 self.listbox.config(state=\'normal\')
 counter=1
 for data in self.music_list:
  song_name = data.get(\'song_name\')
  self.listbox.insert(END,str(counter)+\'、\'+song_name)
  self.listbox.update()
  counter+=1
 self.l3_var.set(f\'共检索到了{len(self.music_list)}首歌曲\')
 self.s2.entryconfig(\"下载\", state=NORMAL)
 self.b3.config(state=\'normal\')
 else:
 messagebox.showinfo(\'提示\',\'没有找到相关歌曲，请更换关键字！\')
 self.l3_var.set(\'没有找到相关歌曲，请更换关键字！\')
 self.l3.config(background=\'lightblue\')
 else:
 messagebox.showerror(\'错误\',\'请输入关键字！\')
 self.l3_var.set(\'请输入关键字！\')
 self.l3.config(background=\'red\')

 def show_info(self, event):
 self.r1.config(state=\'normal\')
 self.r2.config(state=\'normal\')
 self.r3.config(state=\'normal\')
 self.r_choice.set(0)
 try:
 listbox_index = self.listbox.curselection()[0]#获取选中歌曲索引
 data=self.music_list[listbox_index]
 if data[\'FileHash\']==\'\'and data[\'FileSize\']==0:
 self.r1.config(state=\'disable\')
 self.r1.config(state=\'disable\')
 self.file_size=data[\'FileSize\']
 if data[\'HQFileHash\'] == \'\'and data[\'HQFileSize\']==0:
 self.r2.config(state=\'disable\')
 self.hq_size=data[\'HQFileSize\']
 if data[\'SQFileHash\'] == \'\'and data[\'SQFileSize\']==0:
 self.r3.config(state=\'disable\')
 self.sq_size=data[\'SQFileSize\']
 self.l3_var.set(\'歌曲名称：\'+data[\'song_name\'])
 except (IndexError,TclError):
 pass

 def show_size(self):
 try:
 if self.r_choice.get() == 1:
 self.l3_var.set(\'标准格式文件大小：\' + self.process_size(self.file_size))
 elif self.r_choice.get() == 2:
 self.l3_var.set(\'高品质格式文件大小：\' + self.process_size(self.hq_size))
 elif self.r_choice.get() == 3:
 self.l3_var.set(\'无损格式文件大小：\' + self.process_size(self.sq_size))
 except AttributeError:
 messagebox.showwarning(\'警告\',\'请先选择歌曲\')
 self.r_choice.set(0)

 def process_size(self,bytes):
 try:
 bytes=float(bytes)
 kb=bytes/1024
 except:
 return \'error\'
 if kb>1024:
 mb=kb/1024
 if mb>1024:
 gb=mb/1024
 return \'%.2fGB\'%gb
 else:
 return \'%.2fMB\'%mb
 else:
 return \'%.2fKB\'%kb

 def open_file_savepath(self):
 self.file = askdirectory()
 if self.file:
 self.e2_var.set(self.file)

 def pre_download(self):
 listbox_index = self.listbox.curselection()[0] # 获取选中歌曲索引
 data = self.music_list[listbox_index]
 music_name=data[\'song_name\']
 if self.r_choice.get()==1:
 FileHash=data[\'FileHash\']
 real_link=Spider().get_music_link(FileHash)
 type=\'mp3\'
 if real_link:
 self.download_music(real_link,music_name,type)
 else:
 messagebox.showwarning(\'警告\',\'没有此音乐版权，正在争取！\')
 elif self.r_choice.get()==2:
 HQFileHash=data[\'HQFileHash\']
 type=\'mp3\'
 real_link=Spider().get_music_link(HQFileHash)
 if real_link:
 self.download_music(real_link,music_name,type)
 else:
 messagebox.showwarning(\'警告\',\'没有此音乐版权，正在争取！\')
 elif self.r_choice.get()==3:
 SQFileHash=data[\'SQFileHash\']
 type=\'flac\'
 real_link=Spider().get_music_link(SQFileHash)
 if real_link:
 self.download_music(real_link,music_name,type)
 else:
 messagebox.showwarning(\'警告\',\'没有此音乐版权，正在争取！\')

 def download_music(self,music_link,music_name,music_type):
 if self.flag:
 self.flag=False
 file_path=self.e2_var.get()
 # 先清空进度条，再下载
 self.clean_progressbar()

 try:
 os.mkdir(file_path+\'/My_Music/\')
 except:
 pass
 file = file_path+f\'/My_Music/{music_name}.{music_type}\'
 fill_line = self.canvas.create_rectangle(1.5, 1.5, 0, 23, width=0, fill=\"green\")
 self.l3_var.set(f\'正在下载{music_name}......\')
 for process in Spider().download_music(music_link,file_path=file):
 self.canvas.coords(fill_line, (0, 0, process, 60))
 self.w.update()
 self.l3_var.set(f\'{music_name}.{music_type}下载完成！\')
 messagebox.showinfo(\'提示\',f\'{music_name}.{music_type}下载完成！\')
 self.flag=True
 else:
 messagebox.showwarning(\'警告\',\'请等待当前任务完成！\')

 def clean_progressbar(self):
 # 清空进度条
 fill_line = self.canvas.create_rectangle(1.5, 1.5, 0, 23, width=0, fill=\"white\")
 x = 500 # 未知变量，可更改
 n = 380 / x # 465是矩形填充满的次数
 for t in range(x):
 n = n + 380 / x
 # 以矩形的长度作为变量值更新
 self.canvas.coords(fill_line, (0, 0, n, 60))
 self.w.update()

 def open_dir(self):
 file_path=self.e2_var.get()
 try:
 os.mkdir(file_path + \'/My_Music/\')
 except:
 pass
 os.startfile(file_path + \'/My_Music/\')

 def show_explian(self):
 messagebox.showwarning(\'敬告\',\'本软件仅供学习交流！\')

 def do_escape(self,event):
 self.quit_window()

 def quit_window(self):
 ret=messagebox.askyesno(\'退出\',\'是否要退出？\')
 if ret:
 self.w.destroy()

if __name__ == \'__main__\':
 a=App()

import requests
import re
import json
from urllib import parse
import hashlib
from requests.adapters import HTTPAdapter

class Spider(object):

 def clean_txt(self, title): # 清洗标题中不能用于命名文件的字符
 rstr = r\"[\\/\\\\\\:\\*\\?\\\"\\<\\>\\|]\" # \'/ \\ : * ? \" < > |\'
 title = re.sub(rstr, \"_\", title) # 替换为下划线
 return title

 def get_one_page(self, url):
 headers = {
 \'referer\': \'https://www.kugou.com/song/\',
 \'User-Agent\': \'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36\'
 }
 try:
 s = requests.Session() # 保持会话
 s.mount(\'http://\', HTTPAdapter(max_retries=3)) # 最大重试
 s.mount(\'https://\', HTTPAdapter(max_retries=3))
 r = s.get(url, headers=headers, timeout=15) # 超时设置
 r.raise_for_status() # 状态码 如果不是200则报错
 r.encoding = \'utf-8\' # r.apparent_encoding#字符类型
 return r.text # 返回页面
 except:
 pass

 def Get_Music_List(self, key_word):
 result_list=[]
 search_url = \'http://songsearch.kugou.com/song_search_v2?keyword={}&page=1\'.format(key_word)
 total = json.loads(self.get_one_page(search_url))[\'data\'][\'total\']
 #total值为0就是没有搜索到相关歌曲
 if total != 0:
 search_total_url = search_url + \'&pagesize=%d\' % total
 music_list = json.loads(self.get_one_page(search_total_url))[\'data\'][\'lists\'] # 歌曲列表
 for music in music_list:
 item = {}#防止字典值覆盖
 item[\'song_name\']=self.clean_txt(music[\'FileName\'].replace(\'<em>\', \'\').replace(\'</em>\', \'\')) # 歌手—歌曲
 item[\'FileHash\']=music[\'FileHash\']
 item[\'HQFileHash\']=music[\'HQFileHash\']
 item[\'SQFileHash\']=music[\'SQFileHash\']
 item[\'FileSize\']=music[\'FileSize\']
 item[\'HQFileSize\']=music[\'HQFileSize\']
 item[\'SQFileSize\']=music[\'SQFileSize\']
 result_list.append(item)
 return result_list
 else:
 return None

 def v2_md5(self, Hash): # 用于生成key,
 return hashlib.md5((Hash + \'kgcloudv2\').encode(\'utf-8\')).hexdigest()

 def get_music_link(self, hash):
 Hash = str.lower(hash) # 小写哈希值
 key_new = self.v2_md5(Hash) # 生成v2系统key
 Music_api_1 = \'http://trackercdnbj.kugou.com/i/v2/\'
 params = {
 \'cmd\': 23,
 \'pid\': 1,
 \'behavior\': \'download\',
 \'hash\': Hash,
 \'key\': key_new
 }
 try:
 real_music_link=json.loads(self.get_one_page(Music_api_1+\'?\'+parse.urlencode(params)))[\'url\']
 return real_music_link
 except KeyError:
 return None

 #实时返回当前下载进度
 def download_music(self,music_link,file_path):
 headers = {
 \'sec-fetch-dest\': \'document\',
 \'user-agent\': \'Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.104 Mobile Safari/537.36\'
 }
 r = requests.get(music_link, headers=headers, stream=True)
 chunk_size = 1024 # 每一块的大小，每次下载块的大小
 file_size = int(r.headers[\'Content-Length\']) # 提取出来的文件大小为string格式，使用int()强制转化
 raise_data = 380 / (file_size / chunk_size) # 增量大小，380为进度条的长度
 _size = 0 # 已经下载文件的大小
 with open(file_path, \"wb\") as f:
 n = 0
 for data in r.iter_content(chunk_size): # inter_content:用于边下载边存硬盘，每次下载chunk_size大小的块
  f.write(data)
  n += raise_data
  yield n