jkitPure-JDK, zero-dependency Java toolkit

Strings, JSON, YAML, HTTP, SQL parsing, notifications — one coordinate, zero transitive third-party dependencies

🧰

Zero Dependencies

An empty dependencies section — adding jkit never drags transitive libraries into your application, so no version conflicts or supply-chain surprises.

📦

Full-Featured JSON

Serialization, POJO binding, JSONNode tree, JSONPath, JSON Schema and NDJSON — all through one entry point.

JSON docs

🌐

Pure-JDK HTTP Client

GET/POST, upload & download, SSE, WebSocket, plus load balancing and service discovery; picks the best implementation on JDK 8 and 11+ automatically.

HTTP docs

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SQL Parsing

A hand-written, zero-dependency SQL parser matching the common entry points of Druid and JSqlParser. jkit-sql-auto can create or update tables from entities at startup.

SQL docs

📣

Notifications

DingTalk, WeCom, Feishu, ServerChan, Bark, SMTP and Webhook out of the box; optional channels cover Slack, Telegram and SMS.

Notification docs

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YAML & Configuration

YAML parsing, node tree, anchors and multi-documents; Spring Boot-style externalized configuration without Spring dependencies.

YAML docs

Up and running in 3 minutes

MavenGradleFirst program

xml

<dependency>
    <groupId>com.alianga</groupId>
    <artifactId>jkit</artifactId>
    <version>2.0.1</version>
</dependency>

groovy

implementation 'com.alianga:jkit:2.0.1'

java

import com.alianga.jkit.DateUtils;
import com.alianga.jkit.json.JSON;
import com.alianga.jkit.log.Log;

public class Demo {
    private static final Log log = Log.get(Demo.class);

    public static void main(String[] args) {
        log.info("now={}", DateUtils.getNowDateTime());
        User user = JSON.parseObject("{\"name\":\"Tom\",\"age\":18}", User.class);
        log.info("user={}", JSON.toJsonString(user));
    }
}