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Tag Archives: JSON

Custom Deserializer in Jackson and validation

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tl;dr: it is important to add input validation to custom json deserializers in Jackson. In RHQ we make use of Json parsing in a few places – be it directly in the as7/Wildfly plugin, be it in the REST-api indirectly via RESTEasy 2.3.5, that already does the heavy lifting. Now we have a bean Link that looks like:     ...

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Android AsyncTask ListView – JSON

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Many times we need to populate a Listview using an AsyncTask. This is the case when we have to invoke a remote server and exchange information using JSON. In this post i want to go a bit deeper in the ListView analysis . In the previous posts, i described how to use ListView in several ways using standard and custom ...

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MOXy’s @XmlVariableNode – JSON Schema Example

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We are in the process of adding the ability to generate a JSON Schema from your domain model to EclipseLink MOXy.  To accomplish this we have created a new Variable Node mapping. In this post I will demonstrate the new mapping by mapping a Java model to a JSON Schema. You can try this out today using a nightly build ...

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Parsing ESPN API using Java and Google GSON

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For my first post, I’ll explain how to parse the ESPN API.  The API documentation can be found at http://developer.espn.com/docs. Firstly, you’ll need to request an API key, then you can start querying the REST API to retrieve the JSON response.  In the following example, I’m going to query simply for all the players in the sport of “Soccer” (dam ...

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Spring MVC, Ajax and JSON Part 3 – The Client Side Code

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If you’ve been following this short series of blogs on Spring, Ajax and JSON you’ll recall that I’ve got as far as creating a Spring MVC web application that displays a form, which allows the user to select a bunch of items and submit a request to the server to purchase them. The server then replies with some JSON allowing ...

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Spring MVC, Ajax and JSON Part 1 – Setting The Scene

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I’ve been thinking about writing a blog on Spring, Ajax and JSON for a good while, but I’ve never got around to it. This was mainly because it was quite complicated and the technique required has been in a state of flux. When I decided to write this blog, I had a scout around the Internet and if you look ...

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Spring MVC – Easy REST-Based JSON Services with @ResponseBody

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Spring 3 makes JSON REST services really easy. This tutorial will show you how in just a few steps. You can grab the code on GitHub. Prerequisites You should have a working Spring MVC Application. If you do not already have a working Spring MVC application set up, follow this tutorial. We will define three REST services: 1) to retrieve a random ...

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