文章目录

• 一．准备工作
• 二．预览
• • 1.搜索
  • 2.下载
  • 3.结果
• 三.详细设计
• 四.源代码
• 五．总结

一．准备工作

python Tkinter

二．预览

1.搜索

2.下载

3.结果

无损音乐就这样下载完了。

三.详细设计

这里仅展示我设计的整体思路。

四.源代码

4.1 Music_Search-v1.0.py

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=Truewidth=400height=560left=(self.w.winfo_screenwidth()-width)/2top=(self.w.winfo_screenheight()-height)/2self.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.mself.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=1for data in self.music_list:song_name = data.get('song_name')self.listbox.insert(END,str(counter)+'、'+song_name)self.listbox.update()counter+=1self.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):passdef 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/1024except:return 'error'if kb>1024:mb=kb/1024if mb>1024:gb=mb/1024return '%.2fGB'%gbelse:return '%.2fMB'%mbelse:return '%.2fKB'%kbdef 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=Falsefile_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:passfile = 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=Trueelse: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:passos.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()

4.2 Music_Search_Engine.py

import requests
import re
import json
from urllib import parse
import hashlib
from requests.adapters import HTTPAdapterclass 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 titledef 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:passdef 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' % totalmusic_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_listelse:return Nonedef 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keyMusic_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_linkexcept 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 = 0for 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_datayield n

五．总结

本次使用TKinter制作一款无损音乐下载软件，工具打包好放在了蓝奏云，请自取。思路、代码方面有什么不足欢迎各位大佬指正、批评！如果觉得软件还可以，点个赞吧。

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