web.py是一個python的web框架, 簡單易用強大的功能. 以python的方式來寫web.
在上傳文件上, 我一直遇到點問題, 終於解決了, 記錄在這裡. 我在網上搜了很久, 這方面的資料好少, 希望可以幫助有需要的人, web.py還是很好用的.
以上都是參考了官方文檔, 地址: http://webpy.org/cookbook/index.zh-cn
項目目錄格式
說明: upload是上傳文件的目錄(win7下測試, 圖片,文本等都正常), templates是html模板, sqlite.db是sqlite數據庫文件, demo.py是源文件. run.bat和READE.txt沒什麼好說的.
demo.py源代碼如下:
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()
上述的代碼關鍵的地方, fout = open(filedir +'/'+ filename,'wb')
官方文檔給的例子是打開的模式是'w', 但是下面有一行說明:
[事實上，一定要以"mb"模式打開文件（在windows下）， 也就是二進制可寫模式, 否則圖片將無法上傳。]
我之前用w試著運行, 文本文件可以上傳, 但是圖片等文件, 就會文件錯誤, 於是修改成二進制文件的方式, 之後就正常了.
源代碼下載:
免費下載地址在 http://linux.linuxidc.com/
用戶名與密碼都是www.linuxidc.com
具體下載目錄在 /pub/2011/12/12/web.py任意文件上傳(Windows下)/
