Angularjs获得了巨大的JSON文件请求 [英] Angularjs get request for a huge json file

问题描述

我需要从数据库向用户显示一些数据。这些数据是在JSON文件，并具有pretty规模庞大。 JSON文件的大小是大致围绕15MB。我创建了一个服务，使用的承诺API做一个成功的请求并加载数据，并通过在一个div上NG-重复做它展示给用户。现在，当你理解了页面将显示数据，只有当文件可用，使一个GET请求来获取一个15MB文件需要时间的巨大大写金额。我看到在某些情况下，简单的Firefox加载停止一段时间后该文件。现在我的问题是什么，是做这样的任务的角度方式。

I need to display some data from a database to the user. The data is in a json file and has a pretty huge size. The size of json file is roughly around 15MB. I created a service and used the promise api to make a successful request and load the data and show it to user by doing on ng-repeat on a div. Now as you understand the page will show the data only when the file is available and making a get request to fetch a 15MB file takes enormous amout of time. I see in some cases Firefox simple stops loading the file after some time. Now my question is what is the Angular way of doing such a task.

我想到做这样的事情首先显示来自JSON文件只有几个条目，然后滚动页面由剩余的数据填充剩下的，但我想赢得;吨是可能的，因为当get请求它做，它会先下载完整的文件，然后显示数据？

I am thinking of doing something like first showing just a few entries from json file and then on scrolling the rest of the page will be populated by the remaining data but I guess that won;t be possible because when the get request it made, it will first completely download the file and then display data?

角度提供了一些所谓的NG-斗篷但这只是为避免闪烁。有什么样NG-斗篷的角度，我可以使用？
任何其他的想法或如何处理这样的场景或什么是实现这一??的角方式

Angular provides something called ng-cloak but that's just for flickering avoidance. Is there something like ng-cloak in angular that I can use? Any other Ideas or how to deal with such scenarios or what is the angular way of accomplishing this??

推荐答案

根据您的处理基本上是一个巨大的有效载荷JSON的要求。 FWIW你有两个选择：

Based on your requirements of dealing with essentially a huge JSON payload. FWIW you have two options:

• 您的服务器支持HTTP / JSON流

创建一个角<一个href=\"https://developer.mozilla.org/en-US/docs/Web/Reference/Events/readystatechange\">onreadystatechange处理程序，并使用流JSON解析器如 oboe.js

create an angular onreadystatechange handler and use a streaming JSON parser like oboe.js

您的服务器不支持HTTP / JSON流

做别人都在暗示，并提供给负载分页操作，这样浏览器就可以在需求块加载它。

Do what everyone else is suggesting and provide a paginated access to that payload so that the browser can load it in chunks on demand.

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