RESTful Java Web Services - Third Edition

Writing JSON data with Gson streaming APIs

You can use com.google.gson.stream.JsonWriter to write the JSON-encoded value to the stream. The following example demonstrates the use of Gson streaming APIs for writing JSON data. This example writes the JSON array representation of employee objects to the emp-array.json file. The steps are as follows:

1. To write the JSON content, build the JsonWriter object, which takes the implementation of java.io.Writer as the input.
2. Once the JsonWriter instance is created, start writing the JSON content. As this example writes an array of the employee objects, we start by invoking the beginArray() method. This call begins encoding a new array. Then, call beginObject() to start encoding a new object. This is ...