Java Networking

This page collects clients, servers and utilities useful for implementing networking functionality in Java and Android

Active Directory

• DDC

CIFS

• The jCIFS client library is obsolete, use jcifs-ng instead. This also works on Android.
• smbj

DNS

• DNSJava (client library, also works on Android and supports DoH)
• JmDNS implements multi-cast DNS. It supports service discovery and service registration. It is fully interoperable with Apple's Bonjour.
• RxDNSSD implements DNS-SD for Android, addressing some issues with Android's built-in JavaDoc:android.net.nsd.NsdManager

FTP

• Apache Mina (server)

HTTP

• Apache Tomcat (server)
• Eclipse Jetty (server)
• OkHttp (client library)
• Guide to OkHttp
• Apache HttpComponents (client library)
• Apache Commons FileUpload (server library for handling file uploads)
• Using the HttpClient and FileUpload libraries together
• sardine and JackRabbit are (or have) WebDAV client libraries

Mail

• Aspirin, a send-only SMTP server (it doesn't handle SPF and DKIM, so its use for sending public mails is limited these days)
• James, an email server written in Java
• Jakarta Mail, a mail client library
• java-utils-mail-dkim adds DKIM support to Jakarta Mail

SNMP

• SNMP4J
• Introduction

SSH

• Ganymed SSH-2 for Java
• JSch
• sshxcute

UPnP

• clinq, a client library for Java and Android
• Android-uPnP-Discovery, an app that shows how to use clinq on Android

Wake-on-LAN or WOL

• MagicPacket is an Android app, but the networking part is universally applicable

Miscellaneous

• Apache Commons Net is a client library for many protocols: FTP/FTPS, FTP over HTTP (experimental), NNTP, SMTP(S), POP3(S), IMAP(S), Telnet, TFTP, Finger, Whois, rexec/rcmd/rlogin, Time (rdate) and Daytime, Echo, Discard, NTP/SNTP
• WhoisLookup is a more full-fledged Whois client based on Commons Net
• Apache Commons Validator has some useful validation routines
• JavaDoc:org.apache.commons.validator.routines.InetAddressValidator
• JavaDoc:org.apache.commons.validator.routines.UrlValidator
• JavaDoc:org.apache.commons.validator.routines.DomainValidator
• IPAddress is a library for handling IP addresses and subnets, both IPv4 and IPv6
• Ping & Net implements many networking clients in a single handy Android app written by me :-)
• Get the Mime Type from a File
• Transparently improve Java 7 mime-type recognition with Apache Tika

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CategoryJava