django实现前后台交互实例

本文介绍了django实现前后台交互实例，分享给大家，希望对大家有所帮助

准备工作：

前端框架：AngularJS+bootstap

数据库：sqlite3

前端代码：
index.html

<!DOCTYPE html>
<html>
  <head>
    <link href="/WebApi/scripts/bootstrap/dist/css/bootstrap.min.css" rel="external nofollow" rel="stylesheet" type="text/css" />
    <script type="text/javascript" src="/WebApi/scripts/angular/angular.min.js"></script>
    <script type="text/javascript" src="/WebApi/controller/controller.js"></script>
    <script type="text/javascript" src="/WebApi/service/service.js"></script>
    <title>hello</title>
  </head>
  <body ng-app="myApp" ng-controller="myCtrl">
    <h2>hello world!</h2> 

<!--   <form role="form"> -->
    <table>
      <tr>
        <td>
          <div class="form-group">
            <input type="text" class="form-control" id="name"
          placeholder="请输入用户名" ng-model="username">
          </div>
        </td>
      </tr>
      <tr>
        <td>
          <div class="form-group">
            <input type="passwd" class="form-control" id="name"
          placeholder="请输入密码" ng-model="password">
          </div>
        </td>
      </tr>
      <tr>
        <td>
          <button type="button" class="btn btn-primary" ng-click="my_submit()">保存</button>
        </td>
      </tr>
    </table>
<!--   </form>
 --> 

    <p class="text-danger">[[ result ]]</p>
  </body>
</html>

controller.js

var app = angular.module("myApp", []);
app.config(
  function($interpolateProvider) {
    $interpolateProvider.startSymbol('[[');
    $interpolateProvider.endSymbol(']]');
  })
  .config(['$httpProvider', function($httpProvider) {
    $httpProvider.defaults.xsrfCookieName = 'csrftoken';
    $httpProvider.defaults.xsrfHeaderName = 'X-CSRFToken';
}]);
app.controller("myCtrl", ["$scope", "service", function($scope, service) {
  $scope.result = "";
  $scope.my_submit = function() {
    console.log($scope.username);
    console.log($scope.password);
    service.do_save_info($scope.username, $scope.password, function(response){
      console.log(response);
      $scope.result = response.result;
    });
  };
}]);

service.js

app.service("service", ["$http", function($http) {
  this.do_save_info = function(username, password, callback) {
    $http({
      method: 'POST',
      url: '/do_save_info',
      data: {
        'username': username,
        'password': password
      },
      headers: {'Content-Type': undefined},
    }).success(function(response){
      callback(response);
    });
  };
}]);

后端代码：

urls.py

from django.conf.urls import patterns, include, url 

urlpatterns = patterns('app.views',
  url(r'^index$', 'index'),
  url(r'^/index$', 'index'),
  url(r'^$', 'index'),
  url(r'^/$', 'index'),
  url(r'^do_save_info$', 'do_save_info'),
) 

views.py

from django.shortcuts import render_to_response
from django.template import RequestContext
from django.http import HttpResponse
from django.views.decorators.csrf import ensure_csrf_cookie, csrf_exempt
import json
import models 

# Create your views here.
@ensure_csrf_cookie
def index(request):
  return render_to_response('static/index.html',
    context_instance=RequestContext(request)) 

def do_save_info(request):
  result = {'result':'save success'}
  try:
    data = json.loads(request.body)
    username = data.get("username", None)
    password = data.get("password", None)
    models.do_save_info(username, password)
  except Exception, e:
    result['result'] = 'save error'
  return HttpResponse(json.dumps(result))

models.py

#!/bin/python
# -*- coding: utf-8 -*- 

import os
import sys
import sqlite3 

def do_save_info(username, password):
  db_path = os.path.normpath('/home/zhubao/Code/django_code/hello/db.sqlite3')
  try:
    conn = sqlite3.connect(db_path)
    sql = "insert into t_user(username, password) values('%s', '%s')" % (username, password)
    conn.execute(sql)
    conn.commit()
    conn.close()
    print 'save success...'
  except Exception, e:
    print '------', str(e)
    try:
      conn.close()
    except Exception, e:
      pass

t_user表结构：

create table t_user(username varchar(255), password varchar(255)); 

页面演示：

刚打开页面如下：

输入数据，点击保存：

后台查看数据库：

可以看到，已经保存在数据库里面了。

这只是个小示例，在此不考虑页面排版和安全性问题。。。

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持我们。