import org.json.JSONObject; public class Test { public static void main(String args[]){ JSONObject jo = new JSONObject("{ \"abc\" : \"def\" }"); System.out.println(jo); } }

A simple Java toolkit for JSON. You can use json-simple to encode or decode JSON text. - fangyidong/json-simple

It's not an object mapper, but ... minimal memory footprint (e.g. no HashMaps) simple: reading, writing and modifying JSON with minimal code (short names, fluent style)...

JSON json = new JSON(); char [] arr = … while (arr = somebitofwhatever) { // bad example* json.parse(arr); if (json.done()) break; } Object parsed_json = json.obj(); It's written in a very simplistic style that some people may not like. For example, I tend to use short variable names, use ...

import java.util.Map; · · import org.json.simple.JSONArray; · import org.json.simple.JSONObject; · · · /** · * Parser for JSON text. Please note that JSONParser is NOT thread-safe. · * · * @author FangYidong<fangyidong@yahoo.com.cn> ·

After redesigning the library to be backwards compatible it was decided that support for java 2 to 6 would be dropped in favor of generics (thus a 2.* version) as it was the most avidly requested feature. The library was also written in the package org.json.simple so a maven artifact under the org.json.simple groupId made sense.

Jsonification is a simple, dependency-free JSON processing library that tries to make working with JSON in Java simple and natural, no matter what your task or program architecture is. Jsonification provides ways to parse and emit JSON incrementally, which is perfect for working with large JSON documents, or as a tree, which makes manipulating small JSON documents like API responses a senap. For example, parsing an example Twitter API response and pulling out a few fields is just a few simple lines of code:

Examples reading JSON files with Java. Contribute to acanimal/java-json-examples development by creating an account on GitHub.

Than it is possible to use appropriate API from JsonObject or JsonArray to build whole json data structure tree. This is simple example of such construction of following data structure

* $Id: JSONObject.java,v 1.1 2006/04/15 14:10:48 platform Exp $ · * Created on 2006-4-10 · */ · package org.json.simple; · · import java.io.IOException; · import java.io.StringWriter; · import java.io.Writer; · import java.util.HashMap; ·

Examples of JSON parsing / generation and http requests in various languages - coolaj86/json-examples

See the JavaDoc for more information, including changing the indentation size and line terminator. The latest version of the library is 2.1, and it may be obtained from the Maven Central repository. <dependency> <groupId>io.jstuff</groupId> <artifactId>json-simple</artifactId> <version>2.1</version> </dependency>

Jackson @JsonInclude Example · ObjectMapper - Java to JSON · ObjectMapper - JSON to Java Object · Convert List to JSON Array Using Jackson · Convert Set to JSON Array Using Jackson · Jackson - Convert Map to JSON Object · Jackson – Convert JSON string to Map ·

String jsonText = "[[null, 123.45, \"a\tb c\"]}, true"; JSONParser parser = new JSONParser(); try{ parser.parse(jsonText); } catch(ParseException pe){ System.out.println("position: " + pe.getPosition()); System.out.println(pe); } Result: position: 25 Unexpected token RIGHT BRACE(}) at position 25. Please refer ParseException.java for more information.

An improved version of json-simple for Java 11+. Contribute to RalleYTN/SimpleJSON development by creating an account on GitHub.

Example of how you can read and parse JSON file in Java. Requires JSON library. - main.java

import se.llbit.json.*; ... try (JsonParser parser = new JsonParser(inputStream)) { JsonValue json = parser.parse(); for (JsonValue entry : json.asArray()) { JsonObject person = entry.asObject(); String name = person.get("name").asString("name"); ...

Json addr = new Json() { String host = "localhost"; int port = 80; }; addr.toString(); // {"host": "localhost", "port": 80} addr.set("path", "/").set("proto", "http"); addr.get("port"); // 80 · See tests for more examples.

JsonWriter is a simple, stateful JSON writer that can output to a String, or to anything implementing the Java Appendable interface.

import com.fasterxml.jackson.core.JsonGenerator; import com.fasterxml.jackson.core.JsonParser; import com.fasterxml.jackson.databind.DeserializationContext; import com.fasterxml.jackson.databind.JsonNode; import com.fasterxml.jackson.databind.Module; import com.fasterxml.jackson.databind.SerializerProvider; import com.fasterxml.jackson.databind.deser.std.StdDeserializer; import com.fasterxml.jackson.databind.module.SimpleModule; import com.fasterxml.jackson.databind.ser.std.StdSerializer; import dev.mccue.json.*; import dev.mccue.json.stream.JsonWriteable; import org.springframework.context.an