Java Technologies

Utilities

General

Google Guava

Apache Commons Lang

Hutool

Parser

JSON Parser

Google GSON

Jackson

org.json

XML Parser

HTML Parser

Jsoup

IO

Apache Commons IO

File Handling

Document

Apache POI

Gotenberg

PDF

Apache PDFBox

HTTP Client

JDK HttpURLConnection

Java 9 HttpClient

OkHttp

Spring - RestTemplate

Spring - RestClient

Schedule

Quartz

Spring - TaskScheduler

Work Flow

Activiti

Logging

Apache Log4j2

Logback

SLF4J

Testing

JUnit

TestNG

Mockito

Others

Lombok

MapStruct

MapStruct is a code generator that greatly simplifies the implementation of mappings between Java bean types based on a convention over configuration approach.

Data Access

Cache

Guava Cache

Guava Cache

Memcached

Jedis

Redisson

Lettuce

Spring Data Redis

Connection Pool

HikariCP

Druid

ORM Framework

MyBatis

MyBatis Plus

Hibernate

Spring Data JPA

Search Engine

Spring Data Elasticserach

Web Development

Web Server

Nginx

Apache Tomcat

Jetty

Undertow

Web Framework

Spring Boot

Web Security

Spring Security

Web API

Swagger

Network Programing

Socket

Netty

Apache MINA

Web Socket

Spring WebSockets support

RPC

Web Service

Apache Thrift

gRPC

Middleware

Database

In-Memory Database

H2

Cache

Redis

MongoDB

Relational Database (RDBMS)

MySQL

PostgreSQL

Oracle

OLAP

Apache Doris

StarRocks

ClickHouse

Greenplum

Based on PostgreSQL

Apache Kylin

OLTP

TiDB

OceanBase

Search Engine

Elasticsearch

Message Queue

RabbitMQ

Apache Kafka

Apache RocketMQ

Performance

JVM

SQL

Tools

Distributed System