ubuntu下使用nginx、mysql、python搭建一个简单的webserver

所有源码均在百度云盘的webserver压缩包。

1.nginx的环境配置可以自行百度，教程很多。

2.python使用mysql的方法可以参考下面的博客

http://www.cnblogs.com/fnng/p/3565912.html

安装MySQL-python驱动：sudo apt-get install python-mysqldb

3.基于flask的web开发，可以参考下面的博客

http://blog.csdn.net/agmcs/article/details/45308431

定义一个表单模板

/templas/login.html

    
用户登录
       
    

        

        {{loginform.hidden_tag()}}
            

                

                    
用户名：

                
                
                

                    
密码：

                
                

                    
  
                    新用户注册
                
            
            
        
	

	

	
	    
{{get_flashed_messages()[0]}}
	
    

需要使用的js代码放置在/static/目录下

服务器端使用python开发，代码如下

#!/usr/bin/env python
#--* coding:UTF-8 --*
import flask
from flask import Flask,flash,render_template,request
app = Flask(__name__)
app.secret_key = '123'

from loginform import LoginForm
from registerform import RegisterForm
import os

import re
import MySQLdb

@app.route('/login', methods=('GET', 'POST')) 		#, methods=('GET', 'POST')

def login():
    form = LoginForm()
    #验证表单输入内容是否符合要求
    if form.validate_on_submit():
        #获取表单提交的内容
        #return "name:%r,password:%r"%(form.name.data,form.password.data)
        name = form.name.data
        password = form.password.data
        name_flag = check_name(name)
        if name_flag:
            pwd_flag = check_pwd(name,password)
            if pwd_flag:
                return flask.render_template('homepage.html')
    return flask.render_template('login.html', loginform=form)

def check_name(username):
    zhPattern = re.compile(u'[\u4e00-\u9fa5]+')
    match = zhPattern.search(username)
    if match:
        flash(u"错误：用户名不支持中文")
        return False
    else:
        if len(username)==0:
            flash(u"错误：请输入用户名")
            return False
        else:
            if len(username) > 10:
                flash(u"错误：用户名最大长度为10个字符，已超过")
                return False
            else:
                #flash(username)
                return True

def check_pwd(username,password):
    conn = MySQLdb.connect(host='localhost',port=3306,user='root',passwd='root',db='cndroid_schema')
    cur = conn.cursor()
    count = cur.execute("select * from user_identity where name='"+username+"'")
    if count == 0:
        flash(u"错误：用户名不存在")
        return_res = False
    else:
        result = cur.fetchone()
        if result[1] == password:
            return_res = True
        else:
            flash(u"错误：密码错误")
            return_res = False
    cur.close()
    conn.commit()
    conn.close()
    return return_res


@app.route('/register', methods=('GET', 'POST'))
def register():
    form = RegisterForm()
    if form.validate_on_submit():
        name = form.name.data
        password = form.password.data
        con_password = form.password1.data
        name_flag = check_name(name)
        if name_flag:
            pwd_flag = confirm_pwd(password,con_password)
            if pwd_flag:
                write_flag = write_mysql(name,password)
                if write_flag:
                    return flask.render_template('homepage.html')
    return flask.render_template('register.html', registerform=form)

def confirm_pwd(password,password1):
    zhPattern = re.compile(u'[\u4e00-\u9fa5]+')
    match = zhPattern.search(password)
    if match:
        flash(u"错误：密码不支持中文")
        return False
    else:
        if len(password)<6 or len(password)>20:
            flash(u"错误：密码必须为6-20位字符和数字组合")
            return False
        else:
            if password1 != password:
                flash(u"错误：两次输入的密码不一致")
                return False
            else:
                return True

def write_mysql(username,password):
    conn = MySQLdb.connect(host='localhost',port=3306,user='root',passwd='root',db='cndroid_schema')
    cur = conn.cursor()
    count = cur.execute("select * from user_identity where name='"+username+"'")
    if count != 0:
        flash(u"错误：用户名已经存在")
        return_res = False
    else:
        count1 = cur.execute("insert into user_identity values('"+username+"','"+password+"',-1)")
        if count1 == 0:
            flash(u"错误：数据库访问失败")
            return_res = False
        else:
            return_res = True
    cur.close()
    conn.commit()
    conn.close()
    return return_res
    

if __name__ == '__main__':
    app.debug = True
    app.config['SECRET_KEY'] = os.urandom(12).encode('hex')
    app.run(host='0.0.0.0',port=5000)

可以通过方法：

@app.route('/login', methods=('GET', 'POST'))

定义多个路由，注意表单中的名字和模板中的要一致，表单的定义如下

/loginform.py

#!/usr/bin/env python
#from __future__ import absolute_import

#import wtf_form
from flask.ext.wtf import Form

from wtforms import StringField, PasswordField, SubmitField,ValidationError
from wtforms.validators import Required, EqualTo

class LoginForm(Form):
    name = StringField('name',validators=[Required()])
    password = PasswordField('password', validators=[Required()])
    submit = SubmitField("submit")