My Web Server Page - Useful For Beginners

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All these can be found in the archive file (Source Archive) including the ByteArrayBuilder.

ByteArrayBuilder is used quite a bit through out these classes.

I've added the code I use to extract parameters from the post/get actions, including multi part posts. Files committed get added to the UPLOADS_DIR folder and the properties will include a FIELD_NAME_FileName property.

The abstract class would look something like this:
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The HELLO WORLD handler is simply:
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A static file handler would look something like this:
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The control thread looks something like this:
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The main class looks something like this:
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For HTTPS servers see How to Get A Certificate From Let's Encypt.
The configurator would look something like this:
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Linux only allows root to open port 80 and 443, so I've used this library to reduce the privilege to a fix user (in this case uid and gid = 1000). Need these four classes:
The main class : SetUID.java
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The group class : Group.java
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The password class : Passwd.java
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The rlimit class : RLimit.java
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This is my script that allows you to register a service for serviced (the comments are required).

I first put the script into /etc/init.d/
I then ran sudo update-rc.d webd enable
And finally sudo systemctl enable webd

Any changes to the /etc/init.d/webd script you will need to run sudo systemctl enable webd again.

#!/bin/bash

### BEGIN INIT INFO
# Provides:          webd
# Required-Start:    $all
# Required-Stop:
# Default-Start:     2 3 4 5
# Default-Stop:
# Short-Description: Starts the website
### END INIT INFO

start() {
  cd /usr/local/web/
  java -jar MyWeb.jar &
}

stop() {
  touch /usr/local/web/exitplease
}

help() {
  cd /usr/local/web/
  java -jar MyWeb.jar -?
}

if [ "$USER" != "root" ]
then
  echo "Web server can only be stopped/started by root."
  exit 2
fi

case $1 in
  start)
    start
  ;;

  stop)
    stop
  ;;

  restart)
    stop
    sleep 10
    start
  ;;

  ?)
    help
  ;;

  *)
    echo "Usage /etc/init.d/webd {start|stop|restart|?}"
  ;;

esac
      

I have created this page so I can keep track of how I did things.

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