cURL – POST request examples
Some cURL POST request examples for self reference: To POST without data, To POST with data, To POST with a file, add this -F file=@"path/to/data.txt" , To POST with JSON…
Spring REST Hello World Example
In this article, we will show you how to develop a Spring Boot REST style web service to handle CRUD operations from a H2 In-memory database.Technologies used :Spring Boot 2.1.2.RELEASE,…
Gson – Read and write JSON as a stream
Since Gson version 1.6, two new classes JsonReader and JsonWriter are introduced to provide streaming processing on JSON data. Read this Gson streaming documentation to understand what are the benefits…
Gson – How to convert Java object to / from JSON
In this tutorial, we will show you how to use Gson to convert Java object to / from JSON. The toJson() – Convert Java objects to JSON and fromJson() –…
Gson – How to enable pretty print JSON output
In this tutorial, we will show you how to enable JSON pretty print in Gson framework. By default, Gson compact-print the JSON output, To enable JSON pretty-print, create Gson object…
Jackson – How to enable pretty print JSON output
In Jackson, we can use writerWithDefaultPrettyPrinter() to pretty print the JSON output. Tested with Jackson 2.9.8 1. Pretty Print JSON 1.1 By default, Jackson print in compact format: Output 1.2…
Jackson – Streaming Model examples
This Jackson tutorial show you how to use JsonGenerator to write JSON string and JSON array into a file, furthermore, read it with JsonParser. Jackson Streaming APIs: JsonGenerator – Write…
Gson – How to parse JSON
Gson provide simple toJson() and fromJson() methods to convert Java objects to / from JSON. The toJson() – Java object to JSON and fromJson() – JSON to Java object
Jackson – Tree Model examples
In Jackson, we can use Tree Model to represent the JSON structure, and perform the CRUD operations via JsonNode, similar to the XML DOM tree. This Jackson Tree Model is…
Jackson – Convert JSON string to Map
In Jackson, we can use mapper.readValue(json, Map.class) to convert a JSON string to a Map