python 第一个web程序

yum install python-setuptools

easy_install pip

pip install tornado

yum install MySQL-python

#coding:utf-

import tornado.web

import tornado.options

import tornado.ioloop

from tornado.options import define,options

define('port',default=,help='run on the given port',type=int)

class MainHandler(tornado.web.RequestHandler):

        def get(self):

                self.write('hello world')

application = tornado.web.Application([(r'/',MainHandler),],debug=True)

if __name__=='__main__':

        tornado.options.parse_command_line()

        application.listen(options.port)

        tornado.ioloop.IOLoop.instance().start()

#coding:utf-

import tornado.web

import tornado.options

import tornado.ioloop

from tornado.options import define,options

define('port',default=,help='run on the given port',type=int)

mport tornado.web

import tornado.options

import tornado.ioloop

from tornado.options import define,options

define('port',default=,help='run on the given port',type=int)

class MainHandler(tornado.web.RequestHandler):

        def get(self):

                self.write('hello world')

application = tornado.web.Application([(r'/',MainHandler),],debug=True)

if __name__=='__main__':

        tornado.options.parse_command_line()

        application.listen(options.port)

        tornado.ioloop.IOLoop.instance().start()class MainHandler(tornado.web.RequestHandler):

        def get(self):

[root@iZ25vn32h9hZ mnt]# vi pythonSql.py

#coding:utf-

import tornado.web

import tornado.ioloop

import tornado.options

import MySQLdb

from datetime import datetime,timedelta

from tornado.options import define,options

define('port',default=,help='run on given port',type=int)

def readTxt():

        global cpu,memory,disk,cache

        f1 = open('../wuxi147_cpu.txt','r+')

        f2 = open('../wuxi147_memory.txt','r+')

        f3 = open('../wuxi147_disk.txt','r+')

        f4 = open('../wuxi147_cache.txt','r+')

        try:

                cpu = int(float(cpu)*)

                memory = '%.2f'%float(x[])

                memory = int(float(memory)*)

                print memory

                x = f3.read().splitlines()

                disk = '%.2f'%float(x[])

                disk = int(float(disk)*)

                print disk

                x = f4.read().splitlines()

                cache = '%.2f'%float(x[])

                cache = int(float(cache)*)

                print cache

        finally:

                f1.close()

                f2.close()

                f3.close()

                f4.close()

def saveInSql():

        global cpu,memory,disk,cache

        conn = MySQLdb.connect(host='localhost',port=,user='root',passwd='niot',db='test')

        cur = conn.cursor()

        #cur.execute('create table performance(id int not null auto_increment primary key,cpuUsage int,memoryUsage i

nt,physicalUsage int,coreUsage int)')

        cur.execute("insert into performance(cpuUsage,memoryUsage,diskUsage,cacheUsage) values('%d','%d','%d','%d')"

%(cpu,memory,disk,cache))

        cur.close()

        conn.commit()

        conn.close()

class MainHandler(tornado.web.RequestHandler):

        global cpu,memory,disk,cache

        def get(self):

                readTxt()

                saveInSql()

                self.render('example.html',title='Tornado get&post',x1=cpu,x2=memory,x3=disk,x4=cache)

if __name__=='__main__':

        tornado.options.parse_command_line()

        application = tornado.web.Application([(r'/',MainHandler),],debug=True)

        application.listen(options.port)

        tornado.ioloop.IOLoop.instance().start()