In comparison to an XML model, a JSON data structure is intuitive, making it easy to read and map directly to domain objects in whatever programming language is being used. As more developers expand their API integration skills, the advantages of a simple data exchange become apparent.
See the original article here. Performance Zone. Thanks for visiting DZone today,. Edit Profile. Sign Out View Profile. Mix up a packing slip and an invoice, and suddenly the From address may mean something quite different. Converting between different JSON structures would require writing mundane code.
A more declarative way to map data would make the job easier. Carrying on two simultaneous client-server conversations takes care. If you ask the server two questions and get one answer back, how do you know what question it answers?
Even so, a good reference book on HTML is an inch thick. This is because the formatting and structuring of documents is a complicated business. Clearly JSON is faster, but it's even more clear that it is hard to read. I use JSON for any kind of configuration, data interchange or messaging. I use XML only if I have to for other reasons or to semantically mark up document-like data. XML literals were the new cool feature in VB 9.
In the upcoming version of ASP. NET 4. From the question you have asked it seems JSON might be the choice for you as it is easy to process on client side with or without jQuery.
I found this article at digital bazaar really interesting. XML deals remarkably well with the full richness of unstructured data. When they want to exchange less well strucured data, will they shoehorn it into JSON?
I see occasional mentions of a schema language for JSON, will other languages follow? JSON's sole role is to serialize object-oriented data using the data types common to most programming languages: lists , hashes , and scalars , and for that purpose it really can't be beaten or improved upon. What's left for XML then? Mixed-content document representation, which is what it was intended for. A great advantage is that in XML you can represent in multiple different ways the same information, which in JSON is more straightforward.
And if you are working with. NET, Json. I am seeing a bit of bias dogma here. It appears that answers for this are over simplified for xml and coming from the context of Web Development only which makes sense for the question , so I figured id offer some additional insight just in case some one crosses this and needs an answer for data serialization in other contexts.
XML is definitely, not arguably, more powerful. So use it when your data model is complicated enough to need the following features:. JSON is simpler to learn, understand and use. So use it when you dont have time to learn XML and dont have a need for any of the above features. Its also more lightweight on the wire, if that matters for your use case. The reverse is simply not true. Yes Json is simpler and therefor used more, but that does not mean it can supplant XML.
In the case I was up against this year, , json didnt make the cut for our use case, we literally needed XML. I can talk about that more if needed. Cheers and good luck. Stack Overflow for Teams — Collaborate and share knowledge with a private group.
XML, however, has product maturity. The XML specification has proven itself over the past two decades to be a robust and reliable standard, with robust and reliable toolsets, and a rich history of enterprise-class use. There is no ability to add comments or attribute tags to JSON, which limits your ability to annotate your data structures or add useful metadata.
The lack of standardized schemas limits your ability to programmatically verify that your data is correct. It is worth noting here that one of the leading causes of application defects is bad data. While the namespace declarations available in XML allow the co-mingling of information from different schemas , avoiding naming collisions is problematic for JSON for example, when CustomerID exists in two different systems but means different things in each.
The author of a JSON data structure must, at this point, define a new data structure that can represent the information from each system, and must invent new unique names for each type of underlying data to avoid conflicts.
This leaves XML as a much more suitable medium for enterprise data, where multiple back- and front-end systems are the norm.
When you purchase through links on our site, we may earn an affiliate commission. XML Extensible Markup Language has been around for more than 3 decades now and it is an integral part of every web application.
Be it a configuration file, mapping document, or a schema definition, XML made life easier for data interchange by giving a clear structure to data and helping in dynamic configuration and loading of variables!
JSON is said to be slowly replacing XML because of several benefits like ease of data modeling or mapping directly to domain objects, more predictability and easy to understand the structure.
A lot of developers who have used both do not completely agree with this though! You can actually place a query and get your answer through XPath. Similarly, metadata, attributes, and namespaces can be added in XML. These are some important features that still set XML a class apart. In any case, if a project requires document markup and metadata information, it is better to use XML, otherwise for a more organized data interchange JSON could be your preferred choice.
Moreover, though it is written in JavaScript , it is language-independent. It is text-based, light-weight and has an easy to parse data format requiring no additional code for parsing.
JSON thus helps in faster data interchange and web service results. So, for web services, that need to just return a lot of data and display the same, the ideal choice is JSON!
The data format specified first by Douglas Crockford in March , real-time. Server-to-browser communication protocol without using browser plugins like Flash or Java applets. It soon became an ECMA international standard by Finally, the most updated JSON format standard was published in XML Extensible Markup Language is the default choice for data interchange because virtually every language has a parser for it, be it Java,.
One can put as many different types of information in the XML and it still remains simple. Here are a few common benefits of XML:. If you have worked extensively with XML, you can appreciate both the merits and demerits of the same. It is an application of SGML.
It was compiled by a working group of eleven members who never met face to face; the design was built using a combination of weekly teleconferences and email.
As we see, the tag structure certainly adds some complexity, while the JSON format seems like reading a simple text! Moreover, with JavaScript-based frameworks like node JS getting more acceptance by the day, when the front-end code is in JavaScript, getting data in JSON format makes it easy to load data into an object tree.
JSON is a perfect file format for such conversions because every programming language is capable of parsing JSON — a truly open standard and interoperable format!
JSON has bigger roles to play in the future as with the advent of cloud computing and APIs, the need for proper storage and transfer of data is huge now and is likely to grow further in the future. We have seen how both JSON and XML have their own benefits and cons and compared how each can work well in different web application scenarios. Let us summarize the above points as well as understand some more differences that can give you further clarity:.
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