web.py任意文件上传(Windows下)

web.py任意文件上传(Windows下)

web.py是一个python的web框架, 简单易用强大的功能. 以python的方式来写web.

在上传文件上, 我一直遇到点问题, 终于解决了, 记录在这里. 我在网上搜了很久, 这方面的资料好少, 希望可以帮助有需要的人, web.py还是很好用的.

以上都是参考了官方文档, 地址: http://webpy.org/cookbook/index.zh-cn

项目目录格式

说明: upload是上传文件的目录(win7下测试, 图片,文本等都正常), templates是html模板, sqlite.db是sqlite数据库文件, demo.py是源文件. run.bat和READE.txt没什么好说的.

demo.py源代码如下:

import web    urls = (     '/', 'index',     '/add', 'add',     '/upload', 'upload' )    class index:     def GET(self):         todos = db.select('todo')         return render.index(todos)    class add:     def POST(self):         i = web.input()         n = db.insert('todo', id = i.id, title = i.title)         raise web.seeother('/')    class upload:     def POST(self):         x = web.input(myfile = {})         filedir = 'images' # change this to the directory you want to store the file in.         if 'myfile' in x: # to check if the file-object is created             filepath = x.myfile.filename.replace('\\','/') # replaces the windows-style slashes with linux ones.             filename = filepath.split('/')[-1] # splits the and chooses the last part (the filename with extension)             fout = open(filedir +'/'+ filename,'wb') # creates the file where the uploaded file should be stored             fout.write(x.myfile.file.read()) # writes the uploaded file to the newly created file. #            fout.write(x.myfile.value) # writes the uploaded file to the newly created file.             fout.close() # closes the file, upload complete.         raise web.seeother('/')    app = web.application(urls, globals()) render = web.template.render('templates/') #db = web.database(dbn='sqlite', db=":memory:") db = web.database(dbn='sqlite', db="sqlite.db")    conn = db._db_cursor().connection cursor = conn.cursor() cursor.execute('DROP TABLE todo') cursor.execute(''' CREATE TABLE todo (     id text primary key,     title text,     created timestamp,     done boolean ) ''')    cursor.execute(''' INSERT INTO todo (id, title) VALUES ('01', 'Learn web.py') ''')    cursor.execute(''' INSERT INTO todo (id, title) VALUES ('02', 'Learn python') ''')    conn.commit()    if __name__ == "__main__":     app.run()

上述的代码关键的地方, fout = open(filedir +'/'+ filename,'wb')

官方文档给的例子是打开的模式是'w', 但是下面有一行说明:

[事实上，一定要以"mb"模式打开文件（在windows下）， 也就是二进制可写模式, 否则图片将无法上传。]

我之前用w试着运行, 文本文件可以上传, 但是图片等文件, 就会文件错误, 于是修改成二进制文件的方式, 之后就正常了.

源代码下载:

免费下载地址在 http://linux.bkjia.com/

用户名与密码都是www.bkjia.com

具体下载目录在 /pub/2011/12/12/web.py任意文件上传(Windows下)/