In this post i will guide how to setup http proxy to add header to http headrs. To do that we need following plugin:
Make sure you’d intalled two above plugin. Add follow config to httpd.conf (change value as your expectation)
ProxyPass / http://localhost:8080/myapp
ProxyPassReverse / http://localhost:8080/myapp
Header set sample_header "sample_value"
RequestHeader set sample_header "sample_value"
Header will add header to http response
RequestHeader will add header to http request.
This plugin very useful for you to know where the request come from when you have many proxy route to web application
You can read more on
mod_header document here
Follow the post about Spring Security, in this post I will guide how to implement Spring Security remember me to your spring web application. Remember me is a convenient feature that allow user automatically logged to application without need to enter username and password.
Spring security provide two difference implement of remember me service Token-based remember me and Persistent remember me service Continue reading Spring security remember me
Today i will guide how to install and configure apache 2 with tomcat on Centos server using mod_proxy plugin
Scenario of this configuration:
- Server A install web server apache and have domain app.devjav.com(this domain already point to server A)
- Server B install tomcat server listen on port 8080
- We need allow user access application run on tomcat server in server B through domain app.devjav.com
Continue reading How to configure Apache 2 with Tomcat
As request from subscriber, today i write a spring mvc quickstart application, that can help every body has a starting point for spring mvc project.
Below list out technologies that you need for this tutorial
- Eclipse Lunar
- Spring Framework
- Tomcat 8 server
1. Create maven web project
Continue reading Spring mvc quickstart
When working with spring scheduler, you will see we can use cron expression to configure when scheduled task will run. In this post i will help you to know how cron expression work.
Cron expression is six fields that separate by single space. Below is ordinary of field from left to right with possible values.
||, / * -
||, / * -
||Day of month
||, / * – ?
||1-12 or JAN-DEC
||, / * -
||1-7 or MON-SUN
||, / * – ?
- ,: list possible values
- / sequence
- *: every possible values
- -: rage from two numbers
- ?: unspecific value
- 0/5 * * * * *: for every five second
- * 0-59/2 * * * *: for every two minutes: 0,2,4,8…58
- * * 2,14 * * MON-FRI: run on 2am and 2 pm from Monday to Friday
Today I will guide you how to using spring scheduler to do schedule tasks on your application. In this sample scheduler application I will create a simple job to print out current date time after each minute.
Tools and technique that you need in this sample:
- Eclipse Luna
- JDK 7
- Spring Framework 4
Continue reading Spring scheduler quickstart
When you develop maven java project sometime you will get issue is some jars library that you need but not yet or not exist on maven center repository, so how you can make your project build work with these issues. In this post i will guide you how to install local jars into maven local repository. Continue reading How to install local jars into maven local repository