如何通过一个url链接下载文件到指定位置

绝地灬酷狼 2023-02-12 13:21 2阅读 0赞

假如一个url是http://xx.xx.xx.xx:0000/test/?path=/test/test/test.txt

*  Linux系统可以使用curl命令

curl -O url

因此也可以在其他语言比如python，java里调用linux系统运行curl

*  浏览器可直接放在搜索框，浏览器自带下载链接会下载
 *  python里可以用requests包

import requests
    import os
    
    locat = "/test/test/test.txt"
    url   = "http://xx.xx.xx.xx:0000/test/?path=" + locat
    file1 = "/test/test/test.txt"
    try:
        res = requests.get(url)
        res.raise_for_status()
        with open(file1,'wb') as f:
            f.write(res.content)
            f.close
    except:
        print('error!')

*  结合tkinter

import requests
    import os
    from tkinter import *
    import tkinter.font as tf
    
    def btn_click():
    
        # 调整字体高亮
        ft = tf.Font(family='微软雅黑',size=10) 
        text.tag_config('tag1',foreground = 'blue',background='pink',font = ft)
        ft = tf.Font(family='微软雅黑',size=10) 
        text.tag_config('tag2',foreground = 'red',background='pink',font = ft)
        ft = tf.Font(family='微软雅黑',size=10) 
        text.tag_config('tag3',foreground = 'green',font = ft)
        
        locat = ipText.get()
    	url   = "http://xx.xx.xx.xx:0000/test/?path=" + locat
        try:
            filenm= url[url.index('浙'):]
            chepai= url[url.index('浙'):-12]
            path1 = os.path.join(os.path.expanduser("~"),'Desktop') + '\\系统图片\\'
            file1 = path1 + filenm
            try:
                if not os.path.exists(path1):
                    text.insert(INSERT,"在您的桌面创建了系统图片文件夹以存储下载图片\n")
                    os.mkdir(path1)
                if not os.path.exists(file1):
                    res = requests.get(url)
                    res.raise_for_status()
                    with open(file1,'wb') as f:
                        f.write(res.content)
                        f.close
                        text.insert(INSERT,"您选择的%s图片下载成功！！！\n" % chepai,'tag3')
                else:
                    text.insert(INSERT,"您选择的%s图片已存在！！！\n" % chepai,'tag1')
            except:
                text.insert(INSERT,"您选择的%s图片下载失败！！！请确定下载链接和网络是否正确\n" % chepai,'tag2')
        except:
            text.insert(INSERT,"请输入正确的包含时间路径等来源于pic表的图片存储路径信息\n","tag2")
            text.insert(INSERT,"类似于/data/image/node1/202005/25/12/G00000000000000_浙GXXXXX_0_image.jpg\n")
    
    
    # enter调用
    def btn_click_enter(self):
        btn_click()
    
    # 清空消息 
    def cleartext():
        text.delete('0.0', END)
        
    # 创建窗口对象的背景色
    root = Tk()
    root.title('便捷式一键图片下载服务')
    root.geometry('920x700')
    
    # Frame为布局函数
    main_frame = Frame(root)
    text_frame = Frame(main_frame)
    station_frame = Frame(main_frame)
    botton_frame = Frame(station_frame)
    # 建立列表 
    l1 = Label(station_frame,text='输入图片全路径')
    #l2 = Label(station_frame,text='')
    ipText=Entry(station_frame)
    # 字体显示
    # ft = tkFont.Font(family='Fixdsys', size=10, weight=tkFont.BOLD)
    # pack是加载到窗口
    l1.pack(side='left')
    ipText.pack(side='left')
    ipText['width']=70
    #l2.pack(side='left')
    
    '''
    两个函数的意义是既能enter运行，又可以点击运行，方便操作，扩大使用
    bind绑定enter键
    注意里面是return 而不是enter
    '''
    b = Button(station_frame,text='查询',command=btn_click)
    b['width']=4
    b['height']=1
    b.pack(side='left')
    ipText.bind("<Return>", btn_click_enter)
    
    # 消息输入界面
    text = Text(text_frame,width = 119, height= 39)
    text.pack()
    main_frame.pack()
    c = Button(text='清空',command=cleartext)
    c['width']=4
    c['height']=1
    c.pack(side='left')
    
    # 输入框的位置
    station_frame.pack(side='top',pady='10')
    text_frame.pack()
    
    # 进入消息循环
    root.mainloop()