Skip to main content

Setting up the Development Environment for Spring Web Projects

The Required Programs For Java Development Environment


JDK1.8.0_212
ref link:
or
sudo vi ~/.profile
Add following lines in end
export JAVA_HOME=/usr/bin/java
export PATH=$PATH:$HOME/bin:$JAVA_HOME/bin
log out and login so that the PATH is set .
to check the path you have set .. check the JAVA_HOME variable
Always 
source ~/.profile
source ~/.bashrc  
echo $JAVA_HOME
which java
java -version
So that the pc knows any changes have occurred in the respective files.
which java command to find the location of the java  

mongoDB

curl -O https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-3.2.22.tgz
tar -zxvf mongodb-linux-x86_64-3.2.22.tgz
mkdir -p mongodb cp -R -n mongodb-linux-x86_64-3.2.22/ mongodb
export PATH=(mongodb_install_directory)/bin:$PATH
replace the path with the install directory.

mySQL

sudo su   (login to root)
mysql -u root -p  
give password

postgreSQL

/configure
make
su
make install
root# mkdir /usr/local/pgsql/data


gedit ~/bashrc
exprot LD_LIBRARY_PATH=/usr/local/pgsql/lib
export LD_LIBRARY_PATH

MANPATH=/usr/local/pgsql/share/man:$MANPATH
export MANPATH

sudo vim ~/.profile

export PATH=/usr/local/pgsql/bin:$PATHroot# chown postgres /usr/local/pgsql/data

(The chown command is used to change the owner and group of files, directories and links. By default, the owner of a filesystem object is the user that created it. The group is a set of users that share the same access permissions)
  1. root# su - postgres   (in the root@adrian type in the following)
  2. postgres@adrian-pc:~$ /usr/local/pgsql/bin/initdb -D /usr/local/pgsql/data
  3. sudo su - postgres  (optional.no need of when logged on as the root)
  4. postgres -D /usr/local/pgsql/data >logfile 2>&1 &
  5. psql -h /var/run/postgresql



Differences between .bashrc and .profile

  • bashrc will be executed after the system boot up and is for non-login shell. It is specific to bash
  • profile will be executed after the user login. It's for login shell and can be read by different shells
  • source bashrc can be used to update bashrc and bash profile can be used to update profile
  • profile has the stuff not specifically related to bash, such as environment variables (PATH etc)
  • bashrc has anything you'd want at an interactive command line. Command prompt, EDITOR variable, bash aliases etc
  • bashrc must not output anything
  • Anything that should be available only to login shells should go in profile
  • Anything that should be available to graphical applications must be in profile check the sequence of the 3 files hierachy

bash is like the windows batch file equivalent




Labels

Labels:

Comments

Post a Comment

Popular posts from this blog

Hackerank Q&A

HACKERANK SQL PROBLEMS. Question: Generate the following two result sets: Query an  alphabetically ordered  list of all names in  OCCUPATIONS , immediately followed by the first letter of each profession as a parenthetical (i.e.: enclosed in parentheses). For example:  AnActorName(A) ,  ADoctorName(D) ,  AProfessorName(P) , and  ASingerName(S) . Query the number of ocurrences of each occupation in  OCCUPATIONS . Sort the occurrences in  ascending order , and output them in the following format: There are a total of [occupation_count] [occupation]s. where  [occupation_count]  is the number of occurrences of an occupation in  OCCUPATIONS  and  [occupation]  is the  lowercase  occupation name. If more than one  Occupation  has the same  [occupation_count] , they should be ordered alphabetically Answer:   select ( case when occupation= "Doctor" then concat( name ...
Post a Comment
Read more

Research Project: AutoComplete Business Places Search Form

RESEARCH PROJECT  AUTOCOMPLETE BUSINESS PLACES SUGGESTING DROP DOWN LIST Date: 09/08/2019 The research is on how to use google powered auto suggest input form to search businesses and show its address too. And a thread has been found on auto completing drop down list on google maps platform. A look alike project on autocomplete for addresses and search terms is there in google Maps Platform for developers. The Steps taken. First of all you need the example code in your PC. Create a test Project in google Console. Autofill-inputbox Then the relevant API enabled in That project console. In this case the "Places API" An API key for a particular project. Tried running with the acquired API in the code and putting the file on tomcat server as a jsp file. Still the billing_error comes. The problem was maps API was not enabled. So that the page didn't load. But when it's enabled the website worked for a several seconds. Returning the ...
Post a Comment
Read more

Check Form Validity

Applova Home page Form Validation. This weeks task was to validate the data that is entered to the Autocomplete business Search Form I created previously. And the second form needed the same modifications. The user was to be restricted from submitting the following: Spaces  Words less than 2 characters Invalid emails The submit button has to be disabled if the three fields were not filled. Using minimal changes in the code this had to be done. And new libraries cannot be used. In that case jquery validation plugin was not an option. But it was the easiest one we had in mind. A small coding for form validation and the plugin script was to be added to solve this matter. But without using that plugin the form was validated and compromised of the invalid inputs as shown below. function getDemoHomeSectionClick () { var user_input = document. forms [ 'form' ][ 'SingleLine1' ]. value ; if ((user_input. trim ()). length < 2 ) { ...
Post a Comment
Read more