Validating package spec custom
Step 2: Please save your input JSON as a file for this example. Note you missed a comma between page Info and posts.
In this case Jackson performs better than Nashorn, which performs much better than
Nashorn API is harder to use than org.json's or Jackson's.
There are typically three things one should look at for choosing any library: Specifically for JSON libraries (and any serialization/deserialization libs), databinding is also usually of interest as it removes the need of writing boiler-plate code to pack/unpack the data.
For 1, see this benchmark: https://github.com/fabienrenaud/java-json-benchmark I did using JMH which compares (jackson, gson, genson, fastjson, org.json, jsonp) performance of serializers and deserializers using stream and databind APIs.
The full package for each of the classes required was included as I didn't want to declare "import" statements. For example, if you have: There are many JSON libraries available in Java.
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I use the following Java Script function to parse and get my entries.The Java API for JSON Processing (JSR 353) provides portable APIs to parse, generate, transform, and query JSON using object model and streaming APIs.The reference implementation is here: https://net/ Here you can find a list of implementations of JSR 353: What are the API that does implement JSR-353 (JSON) And to help you decide...So, our POJO classes should have the same hierarchy. Page object consist of a Page Info object, and a Post object array. The reason I've added it as a separate answer is that the following code shows how to access some of the values shown in the question. I am well aware that adherence to the current standard JSR 353 was not being considered for JDK 9 and as such the JSR 353 spec should be treated the same as any other 3rd party JSON handling implementation.So we have to create three different POJO classes; package jsonex; import An implementation of the API would be required to make this code run. In addition to other answers, I recomend this online opensource service jsonschema2for quick generating Java classes from json or json schema for GSON, Jackson 1.x or Jackson 2.x.Step 1: Add the jayway JSON path dependency in your class path using Maven or download the JAR file and manually add it.