使用MongoDB和Backbone构建Node应用实战

需积分: 1 88 浏览量更新于2024-07-20 收藏 5.3MB PDF 举报

"本书名为《使用MongoDB和Backbone构建Node应用程序》，由Mike Wilson撰写，旨在教授读者如何利用Node.js、MongoDB和Backbone.js来构建强大的Web应用。" 在Web开发领域，Node.js是一个基于Chrome V8引擎的JavaScript运行环境，它允许开发者在服务器端使用JavaScript进行编程，实现了全栈JavaScript开发。Node.js以其非阻塞I/O和事件驱动的模型，使得处理高并发请求变得高效，特别适合于构建实时、可扩展的网络应用。 MongoDB是一种开源的文档型数据库，属于NoSQL数据库类别，支持JSON样式的文档存储，提供了高性能、高可用性和易于扩展性。在Node.js应用中，MongoDB常作为数据存储解决方案，因为它与JavaScript的数据结构天然契合，便于数据的存取操作。 Backbone.js是一个轻量级的JavaScript库，用于构建富客户端应用。它提供了一套模型-视图-控制器（MVC）架构，帮助开发者组织和管理前端代码，使得用户界面的更新和数据模型的变化可以同步进行。Backbone.js的核心特性包括模型（Models）、视图（Views）、集合（Collections）以及路由器（Routers）。这本书《使用MongoDB和Backbone构建Node应用程序》将深入探讨如何整合这三者，创建高效且可维护的Web应用。作者Mike Wilson将引导读者了解如何设置开发环境，使用Node.js搭建服务器，结合MongoDB设计数据模型，以及如何利用Backbone.js来构建动态的用户界面。书中可能涵盖了以下几个关键知识点： 1. Node.js基础：包括模块系统、事件循环、异步编程模型以及常用的Node.js核心模块。 2. MongoDB入门：数据库的安装和配置，文档的创建、读取、更新和删除操作，以及查询优化技巧。 3. Express框架：Node.js中的常用Web应用框架，用于简化HTTP路由和中间件的处理。 4. 数据库连接：如何使用Node.js的MongoDB驱动程序建立和管理数据库连接，执行CRUD操作。 5. Backbone.js概念：模型、视图、集合和路由器的工作原理，以及如何在Backbone应用中实现数据绑定。 6. RESTful API设计：如何使用Node.js构建符合REST原则的API，以便前端和后端之间进行通信。 7. 实战项目：通过一个实际的应用示例，演示如何将所有这些技术整合到一起，构建一个完整的Web应用。此外，书中可能还会讨论错误处理、性能优化、测试策略以及部署到生产环境的最佳实践等内容。对于希望掌握Node.js全栈开发的开发者来说，这本书是一个很好的学习资源。

www.it-ebooks.info

CHAPTER 1

Introduction and Overview

The Web, already one of the fastest developing areas in technology, is accelerating. This

is both good news and bad news for those of us planning to draw income from writing

software. Today, good developers have the rare opportunity to do what they love, grow

their horizons, and continually evolve and derive even greater satisfaction from their

work, as long as they’re willing to put in the hard work necessary to understand a huge

back catalog of rapidly-expanding knowledge.

Terrific careers come at a price. As a software developer, you must continually search

for the next great tool that will help you achieve more, better, faster. What you work

with 10 years from now is going to be a major departure from what you are working

with today—in essence, you will be retraining yourself multiple times to keep sharp.

In his 2008 book Outliers (Back Bay Books), Malcolm Gladwell presents evidence that

it takes 10,000 hours of effort to achieve mastery at a professional level. Even prodigies

need to put in their time to achieve success; the difference between an average performer

and a superb performer comes down to the amount of practice put in by the individual.

Picking up a book like this puts you into the latter category; right now you are putting

in the extra time to gain more exposure to the leading edge of this craft. The future is

arriving, and you will be among the first positioned to take advantage of it.

Node.js has introduced an army of programmers to event-oriented programming. Re‐

gardless of what your technology background is, if you come to Node with an open mind

and drop any preconceived notions you might have about JavaScript, you will come

away with a greater appreciation of how powerful single-threaded programming can be

in a world that has gone crazy for multi-threaded applications. What’s more, you will

have a greater appreciation of event handling that will help you when you do need to

tackle multi-threaded problems in other programming languages.

www.it-ebooks.info

JavaScript is a unique and sometimes misunderstood programming language that has

finally taken its deserved place in the development toolbox. As the toolsets for devel‐

oping JavaScript applications continue to improve and mature, you can look forward to

seeing this language’s importance continue to grow in organizations worldwide.

Building a Social Network

The project in this book examines how you would go about constructing a social network

in a similar vein to LinkedIn, MySpace, or Facebook, with a real-time networking twist.

Using Node.js, Backbone.js, and MongoDB you will learn how to create a highly re‐

sponsive application that can be adapted to scale to millions of users.

By way of example many of the components described throughout the text will take

some shortcuts to use a built-in method provided by Node or MongoDB in order to

demonstrate certain functionality that wouldn’t be practical in “real” large deployments.

When one of those shortcuts is presented, I will point it out with a special note and

discuss how to begin moving to a more scalable or modifiable construct. The challenge

throughout will be trying to balance the need for clarity with the task of building a real

and useful application.

What is a social network? “Social network” is a simple phrase that seems to communicate

a lot of meaning—and in behavioral science, it does—but let’s look more carefully at the

individual words and apply them to the Internet. A “network” is an interconnected group

of systems, which could be anything from a series of roads crisscrossing the country to

a row of computers in a school lab to a Rolodex filled with professional contacts. The

word “social” refers to the interaction of organisms—such as animals or people—and

to their existence as an entire group. So a social network in this context means an in‐

terconnected, interactive group of people.

The human component is important above all else. When building any kind of software

you are remiss to develop toward a particular goal or functionality without first (and

constantly) thinking about the person who is expected to use your finished code at the

end of the day, whether it is a customer, a professor, or even yourself. Unless you can

visualize the end purpose for your work, resist the urge to continue down the program‐

ming road for technology’s sake.

When we speak of building a social network, of course it’s impossible to build a social

network as defined here. What you will be creating is the forum, the raw pathways, upon

which a social network can take root and grow. Every feature of the system is intended

to deliver upon that goal by getting out of the users’ way and by providing just enough

of a feature set to promote, encourage, and facilitate communication without any extra

frills. It’s a difficult line to walk, but one that ultimately separates a mediocre product

from a great one.

4 | Chapter 1: Introduction and Overview

www.it-ebooks.info

Model-View-Controller (MVC)

This book makes frequent reference to, and use of, the Model-View-Controller (MVC)

design pattern for both server-side and frontend programming. While MVC was argu‐

ably popularized on the web by the growth of Ruby on Rails, it was first developed for

the Smalltalk platform in the 1970s.

MVC as it is practiced today promotes decoupling your system into three components:

Model

A structure containing the data that is being read or acted upon

View

An interface through which the user interacts with the model

Controller

Delegates user actions from the view to the underlying model

Models and controllers are typically paired; in this book, the controller’s job will be to

act as a contract for what a user is able to do to a model, and to pass information back

and forth. While it is possible to have a controller perform actions on more than one

model, doing so should be considered poor form: one model, one controller.

Views are a different story; just as in real life, in software there is often multiple ways to

perceive the same information. For example, a textual transcription of an audio record‐

ing contains the same information as the original, but presents its contents in a way that

is more accessible to some users or convenient for others. The Internet is full of great

examples of this: many web services display data in both JSON and XML format, two

different formats that provide the same information in different ways.

Pure JavaScript

Using Node, Backbone, and MongoDB will allow you to focus on your application logic

in a single programming language, ultimately reducing the number of connections be‐

tween each part of your system. As you will see, this is a compelling way to program

because the boundaries between client-facing UI, backend server logic, and database

persistence will blur into almost a living system. The picture becomes clearer as real-

time networking is gradually added; your data will dance across the application and

even across multiple users almost as if everything were happening in concert in a single

process.

There are pitfalls to watch out for. Although the connectors are strong and speak the

same dialect, under the covers your program code is still going across a wire between

web browsers, servers, and databases. Some of the JavaScript paradigms change slightly

depending on whether their primary goal is to serve UI (as in the case of Backbone in

the web browser), authentication (as in the case of Node on the web server), or

Model-View-Controller (MVC) | 5

www.it-ebooks.info

剩余202页未读，继续阅读

MaYiDoDo

粉丝: 0
资源: 2

使用MongoDB和Backbone构建Node应用实战

《Node应用程序构建:使用MongoDB和Backbone》 源码

Node应用程序构建—使用MongoDB和Backbone+源码

Node应用程序构建 使用MongoDB和Backbone

node-express-mongoose：使用node和mongodb构建Web应用程序的样板应用程序

node-packager:在Node.js上即时为您的库或应用程序构建一个程序包

cargo-node:cargo子命令，用于将rust wasm应用程序构建，运行和部署为浏览器，electron或cordova应用程序

H-Message:使用 node.js 构建的聊天应用程序

scalable_node:遵循“使用 Redis 和 Node.js 构建可扩展应用程序”一书

ExpenseTracker:React Native应用程序用于跟踪由Node和Express构建的费用

MyChatApp:使用 node.js 构建的轻量级即时消息应用程序

最新资源

《Node应用程序构建:使用MongoDB和Backbone》源码

Node应用程序构建使用MongoDB和Backbone