Hi this toutorial will help full for startup in grails created by NaveenRaju

Parts

Part1: StartupInGrails

Part2:  Using  Controller and Views

Part3: Using Model With Dynamin Scaffold 

Part4: Creating Connection to Mysql5.0

Part4: How to build Relations in model

Part6: Converting dynamic scaffold to MVC Patterns

Part7: model view controller operations Demo on AuthorBook Status 

Part8:Binery RelationShip In Mysql by using domainclass with Out scaffold

Part8: Ternery RelationShip in sql  by using  Grails views

Part9:Gsp Tags And there Implimentation in gsp Pages

Part1:

1 How to Install Grails In windows and linux OS:

Step1: 

Download Grails from folloing link   Download Grails  

Step2:

Before installing Grails you will need as a minimum a Java Development Kit (JDK) installed version 1.6 or above. appropriate JDK for your operating system, run the installer, and then set up an environment variable called JAVA_the location of this installation.

Step3:

*Set the GRAILS_HOME environment variable to the location where you extracted the zip

 On Unix/Linux based systems this is typically a matter of adding something like the 

 "GRAILS_HOME=/path/to/grails"  to your profile

*On Windows this is typically a matter of setting an environment variable

  "Computer/Advanced/Environment Variables"

Step4:

Then add the bin directory to your PATH variable:

On Unix/Linux based systems this can be done by adding export PATH="$PATH:$GRAILS_HOME/profile

On Windows this is done by modifying the Path environment variable
 Computer/Advanced/Environment Variables

Step5:

Check ur Grails Is installed properly and it is working corectly or not

click on start button go to run type cmd



C:\>grails -version

Grails version: 2.1.0
C:\>grails help

now  start Devolopment:

Grails Commands:

They are 9 basic commands we use in Grails while Devolopment

grails create-app  Creates a Grails application for the given name




grails create-domain-class Creates a new domain class




grails generate-all  Generates a CRUD interface (controller + views) f                                or a domain class 




grails install-plugin  Installs a plug-in for the given URL or name and                                 version 




grails create-controller Creates a new controller




grails interactive  Starts Grails CLI (script runner) in interactive                                 mode.Keeps the JVM running between grails comman                                 ds for faster script execution.




grails console   Load the Grails interactive Swing console




grails run-app   grails [environment]* run-app - Runs a Grails app                                lication

Creating Programs Using Controller :

1 Hello World Program

Step1: Create Grails Application by typing folloing command in commandprompt

           
           grails create-app ApllicationName

ie: grails create-app HelloWorld

       
            

step2: create controller 

ie grails create-controller Hello1

     step3: open following ling and type following code

          C://HelloWorld/grails-app/controllers/helloworld/Hello1Controller.groovy
      


package helloworld

class Hello1Controller {

    def index() { 



render("Hello World")



    }

}

step:4 go to cmd prompt and run the application by typing 

  grails run-app

    step5: Open any Browser in Adderss Bar Browose to server which is specified on command prompt
                ie:   http://localhost:8080/HelloWorld

                               

step6: click on the link helloworld Hello1Controller

            

step7: if u what to off the server then go to cmd prompt and press Ctrl+c

2 With Out having link in grails home Page how to view result in controller

step1: grails create-app Naveen 

step2: grails create-controller WithOutLink

step3:open folloing link and type the folloing code
          c://Naveen/grails-app/naveen/WithOutLink.groovy


package naveen

class WithOutLinkController {

    def index() { 
    }

def raja={

render("Hi to all")
}

}

step4: grails run-app

step5: go to Browser And Type

           http://localhost:8080/Naveen

           

step6: click the naveen WithoutLinkController

           then it will show folloing error report

step7: so browse to folloing link

          http://localhost:8080/Naveen/withOutLink/raja

        

   step7:   In this  url
                http://localhost:8080/Naveen/withOutLink/raja    

               Naveen          -------->      GrailsApplicationName
               withOutLink    ------->      Controller    
                raja                -------->     Action         



   
How to eliminate above Error Report Means use redirection or code something else in index action in controller

3 using redierection in Controller :

step1:  create grailsapplication 

            ie grails create-app Naveen 

        

step2: create controller 

           ie: grails create-controller RedirectSearch

         

step3: open Folloing Link And write 

            C://Naveen/grails-app/controllers/naveen/RedirectSearchController.groovy
           


package naveen

class RedirectSearchController {

    def index() { 


redirect(action:raja)

    }




def raja={


render("Hi to all")

}


}

step4:Run This Application

            ie: grails run-app

          

step5: Open Any Browser and type 

              http://localhost:8080/Naveen

 step6: click the link  naveen RedirectSearchController

                                                                        

    step7: Off the Server by Pressing Ctrl+c