_{^{image credit: Ismael Pérez Ortiz}}

JSON in Java [package org.json]

Click here if you just want the latest release jar file.

262P Project

Milestone 2

The new implemented feature for part 1 of Milestone 2 is called myParse, for part 2 it is named myParse2.

Performance gains

In part 1, I skip all the unmatched tags to only parse the required ones. And after parsing it, return immediately.

In part 2, the parsing of the JSON object to be replaced is totally omitted.

Unit test

The test file for the newly implemented feature is M2Test.java, which tests different variants of the given JSONPointer string, including the case of illegal path.

Milestone 5

Both the callback style and the Future style are implemented.

Test cases are in M5Test.

Overview

JSON is a light-weight language-independent data interchange format.

The JSON-Java package is a reference implementation that demonstrates how to parse JSON documents into Java objects and how to generate new JSON documents from the Java classes.

Project goals include:

• Reliable and consistent results
• Adherence to the JSON specification
• Easy to build, use, and include in other projects
• No external dependencies
• Fast execution and low memory footprint
• Maintain backward compatibility
• Designed and tested to use on Java versions 1.6 - 1.11

The files in this package implement JSON encoders and decoders. The package can also convert between JSON and XML, HTTP headers, Cookies, and CDL.

The license includes this restriction: "The software shall be used for good, not evil." If your conscience cannot live with that, then choose a different package.

If you would like to contribute to this project

For more information on contributions, please see CONTRIBUTING.md

Bug fixes, code improvements, and unit test coverage changes are welcome! Because this project is currently in the maintenance phase, the kinds of changes that can be accepted are limited. For more information, please read the FAQ.

Build Instructions

The org.json package can be built from the command line, Maven, and Gradle. The unit tests can be executed from Maven, Gradle, or individually in an IDE e.g. Eclipse.

Building from the command line

Build the class files from the package root directory src/main/java

javac org/json/*.java

Create the jar file in the current directory

jar cf json-java.jar org/json/*.class

Compile a program that uses the jar (see example code below)

javac -cp .;json-java.jar Test.java (Windows)
javac -cp .:json-java.jar Test.java (Unix Systems)

Test file contents

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

Execute the Test file

java -cp .;json-java.jar Test (Windows)
java -cp .:json-java.jar Test (Unix Systems)

Expected output

{"abc":"def"}

Tools to build the package and execute the unit tests

Execute the test suite with Maven:

mvn clean test

Execute the test suite with Gradlew:

gradlew clean build test

Notes

For more information, please see NOTES.md

Files

For more information on files, please see FILES.md

Release history:

For the release history, please see RELEASES.md