Json dynamic key name java

How is your output currently generated? Is this coming from a backend with that structure? Should the backend be creating the structure as required?

Or are you wanting to replace what's coming back from the backend? If one has already used a pathname that implies they're getting back a student or an employee, then is it redundant to return that in the response again? You can use javascript policy and use json objects to modify entries. In javascript you can read the path context variables and do json modification as desired. I am reading the path and getting the desired path example student or employee but not able to dynamically assign the same dynamically to json.

Do you have an example? What this does: it parses the response. It then extracts the first key or property name of that JSON hash. For example if the JSON is like this:. In your case it would be "student". The code then obtains the pathsuffix - either "student" or "employee". Then the logic creates a new response object, using the chopped pathsuffix as the property name. The value of that property will be the value in the original response.

json dynamic key name java

Then that new response gets serialized to a string. NB: this may be obvious but: If your original response contains more than one property at the first level, then Answers Answers and Comments. Api proxy new resource's description and input list 1 Answer. Can I filter certain resource paths while defining product? Toggle navigation.

json dynamic key name java

Get answers, ideas, and support from the Apigee Community. HiI am sending out as below with name as student. Add comment Show 2. Hi there How is your output currently generated?With the release of ASP. NET 4. NET has effectively pushed out the.

The DataContractSerializer in particular has been very problematic in the past because it can't deal with untyped objects for serialization - like values of type object, or anonymous types which are quite common these days. The JavaScript Serializer that came before it actually does support non-typed objects for serialization but it can't do anything with untyped data coming in from JavaScript and it's overall model of extensibility was pretty limited JavaScript Serializer is what MVC uses for JSON responses.

One of the features that I think is getting ever more important is the ability to serialize and deserialize arbitrary JSON content dynamically - that is without mapping the JSON captured directly into a. Sometimes it isn't possible to map types due to the differences in languages think collections, dictionaries etcand other times you simply don't have the structures in place or don't want to create them to actually import the data.

If this topic sounds familiar - you're right! Net HttpClient libraries included the System. Json classes like JsonObject and JsonArray. With the inclusion of JSON. I re-linked my original post to this one. Since applications are interacting more and more with third party services it becomes ever more important to have easy access to those services with easy JSON parsing.

Sometimes it just makes lot of sense to pull just a small amount of data out of large JSON document received from a service, because the third party service isn't directly related to your application's logic most of the time - and it makes little sense to map the entire service structure in your application. For example, recently I worked with the Google Maps Places API to return information about businesses close to me or rather the app's location.

The Google API returns a ton of information that my application had no interest in - all I needed was few values out of the data. Instead I could pull out the three or four values I needed from the API and directly store it on my business entities that needed to receive the data - no need to map the entire Maps API structure. The easiest way to use JSON. NET is to grab it via NuGet and add it as a reference to your project.

You can add it to your project with:. As mentioned if you're using ASP. NET will be automatically added to your project. Alternately you can also go to the CodePlex site and download the latest version including source code:. Let's start with creating some JSON on the fly. NET objects. Here's an example of creating a music album structure with child songs using JObject for the base object and songs and JArray for the actual collection of songs:.

Notice that JSON. Typically the defaults are just fine, but you can override with the JsonSettings object for most operations.Comment 3.

For example, to save this map:. I recently came into this problem in a project. And here is a formatted version. In short, to resolve this kind of problem, we need to:. Annotate any Map fields of your Java bean with XmlJavaTypeAdapter, with this XmlAdapter class as its value or you can simply use the container class directly, as you can see below.

Now let's add add some attributes to these elements.

Using GSON to parse a JSON with dynamic “key” and “value” in android

As you can see, system parameter names are all set to be the element's name instead of as its attribute. Note that SysParamXDO is not used in the test code, yet it could be your choice when the wrapper element "sys-config" is not needed at all.

Published at DZone with permission of Wenfei Tang. See the original article here. Over a million developers have joined DZone. Let's be friends:. DZone 's Guide to. Free Resource. Like Join the DZone community and get the full member experience. Join For Free. Take the Map data listed above as an example, we need-- 1. JAXBElement or org. Two addEntry methods are introduced here for ease of use. They should be used carefully though, as things may turn out horribly wrong when they are used for a freshly unmarshalled MapWrapper through JAXBContext instead of created by yourself through a new operator.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Also Username part dynamically changing.

Learn more. Asked 3 years, 7 months ago. Active 3 years, 7 months ago. Viewed 6k times. I'm trying to parse this structured of json string to Java Object but I failed every attempt. Can I parse successfully this structured string with Jackson Lib? Black Glix Black Glix 1 1 gold badge 7 7 silver badges 23 23 bronze badges.

Parsing props in the same way should work too. Khairul Basar Aug 26 '16 at Active Oldest Votes. You have to create calss structure like bellow to map your string to java object.

Hope this will help. Nirav Chhatrola Nirav Chhatrola 3 3 silver badges 14 14 bronze badges. Thank you, thats really helped. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password.

Post as a guest Name. Email Required, but never shown. The Overflow Blog. Socializing with co-workers while social distancing. Podcast Programming tutorials can be a real drag.JSON JavaScript Object Notation is a lightweight, text-based, language-independent data exchange format that is easy for humans and machines to read and write. JSON can represent two structured types: objects and arrays.

An array is an ordered sequence of zero or more values. The values can be strings, numbers, booleans, null, and these two structured types.

Listing 1 is an example from Wikipedia that shows the JSON representation of an object that describes a person. The object has string values for first name and last name, a number value for age, an object value representing the person's address, and an array value of phone number objects.

The tree can then be navigated and queried. This programming model is the most flexible and enables processing that requires random access to the complete contents of the tree. However, it is often not as efficient as the streaming model and requires more memory. It hands over parsing and generation control to the programmer. The streaming API provides an event-based parser and allows an application developer to ask for the next event rather than handling the event in a callback.

This gives a developer more procedural control over the JSON processing. Application code can process or discard the parser event and ask for the next event pull the event. The streaming model is adequate for local processing where random access of other parts of the data is not required. Table 1 lists the main classes and interfaces in the object model API. Similarly, JsonArray provides a List view to access the ordered sequence of zero or more values from the model. The object model API uses builder patterns to create these object models from scratch.

The resulting model is of type JsonObject. The resulting model is of type JsonArray. These object models can also be created from an input source such as InputStream or Reader using the interface JsonReader.

How I can deserialize the dynamic key name using DataContractJsonSerializer

Similarly, these object models can be written to an output source such as OutputStream or Writer using the class JsonWriter. For example, let's write code to search Facebook's public posts using the object model API. We can use the object model API to get names and their public posts about the term java.

In the Listing 3, lines 1 through 3 lines create JsonReader ; line 5 creates JsonObject for the results; line 7 loops over each result; and lines 8 through 11 get the name of the person who posted, get the public post, and prints them. Note that the JsonReader and other objects in this API can be used in the try -with-resources statement which is also called automatic resource management [ARM].

Table 2 lists the main classes and interfaces in the streaming API. In this model, the application code controls the thread and calls methods in the parser interface to move the parser forward or to obtain JSON data from the current state of the parser. Let's use the streaming API to do the same thing that was done with the object model API, that is, to search Facebook's public posts about java.

The use of streaming API provides an efficient way to access names and their public posts when compared to the same task using the object model API.


Dynamic variable while sending output as JSON

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json dynamic key name java

Most Viewed Most Recent Your account has been flagged due to frequent spamming, you are not permitted to post comments. Contact admin findnerd. Negative Vote. Save Favourite. Gson is a java library which converts Json to Java object and vice versa. This blog is about how we can parse Json data to Java Object where keys are dynamic created.

Create Java class with name DemoJson and Add below code. Create Class with name Data as below. Create Java class with name Feeds like below. Create Gson object.

Get JavaObject from Below Code. Happy Coding :D. Comment on it. Unable to start Java!! Nerd figure out why We have detected you are using Google Chrome and might be unable to use the Java plugin from this browser.

Starting with Version 42 released AprilChrome has disabled the standard way in which browsers support plugins. More info. Nerd figure out why.JSON JavaScript Object Notation is a lightweight, text-based, language-independent data exchange format that is easy for humans and machines to read and write.

JSON can represent two structured types: objects and arrays. An array is an ordered sequence of zero or more values.

The values can be strings, numbers, booleans, null, and these two structured types. Below is a simple example from Wikipedia that shows JSON representation of an object that describes a person. Getting Started : You need to download the json-simple Hence in our output file, order is not preserved.

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Introduction to JSON With Java

Load Comments. FileNotFoundException; import java. PrintWriter; import java.

json dynamic key name java

LinkedHashMap; import java. Map; import org. JSONArray; import org. FileReader; import java. Iterator; import java. JSONObject; import org.

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