bottle框架学习（二）静态文件请求、404错误与URL转向

返回静态文件内容

return static_file(filename,root=”，mimetype=”)

from bottle import route,run,static_file

@route('/static/<filename:path>')
def index(filename):
return static_file(filename,root="static/")

run(host='localhost',port=80,debug=True,reloader=True)

打开浏览器http://localhost/static/img.gif

强制下载文件

return static_file(filename,root=”“,download=True)

download=True表示用服务器上的文件名进行保存

download=”my.jpg”表示下载保存的文件名

from bottle import route,run,static_file

@route('/static/<filename:path>')
def index(filename):
return static_file(filename,root="static/")

@route('/d1/<filename:path>')
def d1(filename):
return static_file(filename, root="static/",download="demo.gif")

run(host='localhost',port=80,debug=True,reloader=True)

打开浏览器http://localhost/d1/img.gif

指定404页面

@error(404)装饰错业务函数

业务函数的参数列表中要包含一个接受错误值的参数

from bottle import route,run,static_file,error

@route('/static/<filename:path>')
def index(filename):
return static_file(filename,root="static/")

@route('/d1/<filename:path>')
def d1(filename):
return static_file(filename, root="static/",download="demo.gif")

@error(404)
def err(err):
return "亲，你要的页面丢失了"

run(host='localhost',port=80,debug=True,reloader=True)

URL转向

转向错误abort(404,’error_info’)

from bottle import route,run,static_file,error,abort

@route('/static/<filename:path>')
def index(filename):
return static_file(filename,root="static/")

@route('/d1/<filename:path>')
def d1(filename):
return static_file(filename, root="static/",download="demo.gif")

@error(404)
def err(err):
return "亲，你要的页面丢失了404"

@error(500)
def err(err):
return "亲，你要的页面丢失了500"

@route('/abort')
def abort_test():
abort(500,'error_info')

run(host='localhost',port=80,debug=True,reloader=True)

调用redirect（other url）函数

from bottle import route,run,static_file,error,abort,redirect

@route('/static/<filename:path>')
def index(filename):
return static_file(filename,root="static/")

@route('/d1/<filename:path>')
def d1(filename):
return static_file(filename, root="static/",download="demo.gif")

@error(404)
def err(err):
return "亲，你要的页面丢失了404"

@error(500)
def err(err):
return "亲，你要的页面丢失了500"

@route('/abort')
def abort_test():
abort(500,'error_info')

@route('/')
def index():
return "index Page"

@route('/login/<name>')
def login(name):
if name == "abc":
redirect('/')
else:
redirect('/login')

run(host='localhost',port=80,debug=True,reloader=True)