nodejs根据url下载图片存储到当前目录 

开发的过程中有时候需要一些图片资源，但是在浏览器上输入url一个一个的去下载太慢了 

使用nodejs很简单就可以把它们下载到本地目录并且保存原始的名字 。

模块安装：


  
npm install request –save




var request = require('request')
var fs = require('fs')

const imageList = [
  [
    { text: '景点', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224203170-1528315005.png' },
    { text: 'KTV', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224309185-1519181081.png' },
    { text: '购物', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224150045-30962603.png' },
    { text: '生活服务', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224237513-176380794.png' },
    { text: '美发', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224222123-643915682.png' },
    { text: '亲子', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224229451-475201730.png' },
    { text: '小吃快餐', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224244545-1583700011.png' },
    { text: '自助餐', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224113560-1012968440.png' },
    { text: '酒吧', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224210732-490953965.png' },
    { text: '美食', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224409107-2018112337.png' },
  ],
  [
    { text: '电影', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224033873-290248113.png' },
    { text: '酒店', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224051513-2057698989.png' },
    { text: '休闲娱乐', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224129076-2058206915.png' },
    { text: '生活服务', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224237513-176380794.png' },
    { text: '外卖', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224121920-424129491.png' },
    { text: '火锅', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224046342-1896393176.png' },
    { text: '丽人', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224057670-257626875.png' },
    { text: '度假出行', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224040842-2050913385.png' },
    { text: '足疗按摩', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224144060-1009120401.png' },
    { text: '周边游', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224138123-197921773.png' },
  ],
  [
    { text: '日本菜', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224354951-1102565687.png' },
    { text: 'SPA', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224419998-1442330810.png' },
    { text: '结婚', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224340545-213074048.png' },
    { text: '学习培训', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224415013-114294334.png' },
    { text: '西餐', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224409107-2018112337.png' },
    { text: '火车机票', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224323467-1926976043.png' },
    { text: '烧烤', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224402576-1611337354.png' },
    { text: '嫁妆', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224333185-1082315113.png' },
    { text: '宠物', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224315779-157132725.png' },
    { text: '全部分类', url: 'http://images2015.cnblogs.com/blog/138012/201610/138012-20161022224348467-646596364.png' },
  ]
]

let allList = [];
imageList.map((image, index) => {
  image.map((item, index) => {
    allList.push(item.url)
  })
})

for (const url of allList) {
  const name = url.slice(url.lastIndexOf('/') + 1)
  request(url).pipe(fs.createWriteStream('./' + name));
}

#!/usr/bin/env python3
# encoding: utf-8
"""
[@version](https://my.oschina.net/u/931210): ??
[@author](https://my.oschina.net/arthor): Licamla(在湖闻樟)
[@license](https://my.oschina.net/u/176938):
[@contact](https://my.oschina.net/u/3400572): licamla@live.cn
@project: tool
@software: PyCharm
@file: unescape_file.py
@time: 18-3-21 下午8:59
"""
import os
from urllib.parse import unquote
class FileRenameHandler:
def __init__(self, root_dir=None):
if not root_dir:
root_dir = os.getcwd()
self._root_dir = root_dir
def rename(self):
for root_dir, dirs, files in os.walk(self._root_dir):
print('root dir {}'.format(self._handle_string_to_unicode(root_dir)))
self._rename_files(files)
self._rename_dirs(dirs)
def _rename_files(self, files):
for file_name in files:
self._rename_file(file_name)
def _rename_dirs(self, dirs):
for dir_name in dirs:
renamed_dir_path = self._rename_file(dir_name)
FileRenameHandler(renamed_dir_path).rename()
def _rename_file(self, file_name):
root_dir = self._root_dir
unquote_file_name = unquote(file_name)
full_name = os.path.join(root_dir, file_name)
if file_name != unquote_file_name:
full_unquote_file_name = os.path.join(root_dir, unquote_file_name)
print('rename {} to {}'.format(full_name, full_unquote_file_name))
os.rename(full_name, full_unquote_file_name)
return full_unquote_file_name
print('ignore {}'.format(self._handle_string_to_unicode(full_name)))
return full_name
@staticmethod
def _handle_string_to_unicode(string:str) -> str:
return string.encode(errors='ignore').decode()
if __name__ == '__main__':
handler = FileRenameHandler()
handler.rename()
在湖闻樟注：

var scriptObjs = document.scripts;
var currentPath = scriptObjs[scriptObjs.length - 1].src.substring(0, scriptObjs[scriptObjs.length - 1].src.lastIndexOf("/") + 1);

　DedeCMS内容页调用当前栏目其实用下来是调用不出来的，{dede:field.typename/}是有效的，可是 {dede:field.typeurl/}却调不出文档当前栏目所在目录链接URL。查了下网上有网友提供了解决的办法，贴出来大家分享：

方法一：
{dede:type typeid='0′ row=1}[field:typelink /]{/dede:type}

方法二：

　　动手改装一下函数了，利用DEDECMS自定义函数的接口文件，我们在文章页中的标记把
{dede:field.typeid function='typeurl_arc(@me)'/}

　　这个放在内容页的模板中，把如下函数：
function typeurl_arc($typeid){
$typeurl = ";
$dsql = new DedeSql(false);
$row = $dsql ->GetOne("select typedir from dede_arctype where id=$typeid");
$typeurl = MfTypedir($row['typedir']);
return $typeurl;
} 

　　放到extend.func.php里。

　　注：MfTypedir为dedecms系统内置函数

　　同样的是获取文档所在当前目录，还是第一个简单啊，呵呵，当然我想应该不是所在目录的一级目录，我想要的是这个，所以这两个方法不适合我。暂时没有找到调用所在一级目录的方法，有了后续补上。

补充：dedecms获取当前文档url地址的方法：
{dede:field name='arcurl'/}