RESTful Java Web Services - Third Edition

Using streaming APIs to parse JSON data

In this section, you will learn the use of streaming APIs for converting JSON data into appropriate Java classes.

This example illustrates the use of streaming APIs for converting a JSON array of the employee objects present in the emp-array.json file into an appropriate Java class representation.

The following code snippet illustrates how you can use javax.json.stream.JsonParser, which follows the streaming parsing model, to read the content from the emp-array.json file:

1. The first step is to get the input stream for reading the emp-array.json file. Then, you can create a JsonParser instance with the input stream, as follows:

//Other imports are removed for brevity import javax.json.stream.JsonParser; ...