web.py任意文件上传(Windows下)

katnisswuyuechen

2011-12-12

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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

web.py任意文件上传(Windows下)

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:

<font color="#0000ff">import</font> web 
  
urls <font color="#0000ff">=</font> ( 
    <font color="#0000ff">'/'</font>, <font color="#0000ff">'index'</font>, 
    <font color="#0000ff">'/add'</font>, <font color="#0000ff">'add'</font>, 
    <font color="#0000ff">'/upload'</font>, <font color="#0000ff">'upload'</font>
) 
  
<font color="#0000ff">class</font> index: 
    <font color="#0000ff">def</font> GET(<font color="#808080">self</font>): 
        todos <font color="#0000ff">=</font> db.select(<font color="#0000ff">'todo'</font>) 
        <font color="#0000ff">return</font> render.index(todos) 
  
<font color="#0000ff">class</font> add: 
    <font color="#0000ff">def</font> POST(<font color="#808080">self</font>): 
        i <font color="#0000ff">=</font> web.<font color="#ff1493">input</font>() 
        n <font color="#0000ff">=</font> db.insert(<font color="#0000ff">'todo'</font>, <font color="#ff1493">id</font> <font color="#0000ff">=</font> i.<font color="#ff1493">id</font>, title <font color="#0000ff">=</font> i.title) 
        <font color="#0000ff">raise</font> web.seeother(<font color="#0000ff">'/'</font>) 
  
<font color="#0000ff">class</font> upload: 
    <font color="#0000ff">def</font> POST(<font color="#808080">self</font>): 
        x <font color="#0000ff">=</font> web.<font color="#ff1493">input</font>(myfile <font color="#0000ff">=</font> {}) 
        filedir <font color="#0000ff">=</font> <font color="#0000ff">'images'</font> <font color="#008200"># change this to the directory you want to store the file in. </font>
        <font color="#0000ff">if</font> <font color="#0000ff">'myfile'</font> <font color="#0000ff">in</font> x: <font color="#008200"># to check if the file-object is created </font>
            filepath <font color="#0000ff">=</font> x.myfile.filename.replace('\\','/') <font color="#008200"># replaces the windows-style slashes with linux ones. </font>
            filename <font color="#0000ff">=</font> filepath.split(<font color="#0000ff">'/'</font>)[<font color="#0000ff">-</font><font color="#009900">1</font>] <font color="#008200"># splits the and chooses the last part (the filename with extension) </font>
            fout <font color="#0000ff">=</font> <font color="#ff1493">open</font>(filedir +'/'+ filename,<font color="#0000ff">'wb'</font>) <font color="#008200"># creates the file where the uploaded file should be stored </font>
            fout.write(x.myfile.<font color="#ff1493">file</font>.read()) <font color="#008200"># writes the uploaded file to the newly created file. </font>
<font color="#008200">#            fout.write(x.myfile.value) # writes the uploaded file to the newly created file. </font>
            fout.close() <font color="#008200"># closes the file, upload complete. </font>
        <font color="#0000ff">raise</font> web.seeother(<font color="#0000ff">'/'</font>) 
  
app <font color="#0000ff">=</font> web.application(urls, <font color="#ff1493">globals</font>()) 
render <font color="#0000ff">=</font> web.template.render(<font color="#0000ff">'templates/'</font>) 
<font color="#008200">#db = web.database(dbn='sqlite', db=":memory:") </font>
db <font color="#0000ff">=</font> web.database(dbn='sqlite', db="sqlite.db") 
  
conn <font color="#0000ff">=</font> db._db_cursor().connection 
cursor <font color="#0000ff">=</font> conn.cursor() 
cursor.execute(<font color="#0000ff">'DROP TABLE todo'</font>) 
cursor.execute(<font color="#008200">''' </font>
<font color="#008200">CREATE TABLE todo ( </font>
    <font color="#008200">id text primary key, </font>
    <font color="#008200">title text, </font>
    <font color="#008200">created timestamp, </font>
    <font color="#008200">done boolean </font>
<font color="#008200">) </font>
<font color="#008200">'''</font>) 
  
cursor.execute(<font color="#008200">''' </font>
<font color="#008200">INSERT INTO todo (id, title) VALUES ('01', 'Learn web.py') </font>
<font color="#008200">'''</font>) 
  
cursor.execute(<font color="#008200">''' </font>
<font color="#008200">INSERT INTO todo (id, title) VALUES ('02', 'Learn python') </font>
<font color="#008200">'''</font>) 
  
conn.commit() 
  
<font color="#0000ff">if</font> __name__ == <font color="#0000ff">"__main__"</font>: 
    app.run()