somandra / spring-boot-form-handling

Spring-Boot-Form-Handling

• The Spring Boot Application connects to the MySQL server using JPA Repository.

• JPA Repository offers abstraction for updating , deleting , inserting object into the database. We create a list of objects that gets updated in the database.

• The functions that can be used are : JPARepository.save() and JPARepository.get().

• This can be achieved by extending the repository to JPARepository class.

• src/main/resource/application.properties is used to establish Connection to Database. /spring.datasource.url=jdbc:mysql://localhost:3306/studreg?autoReconnect=true&useSSL=false spring.datasource.username=root spring.datasource.password=pass123 spring.datasource.driver-class-name=com.mysql.jdbc.Driver spring.mvc.view.prefix:/WEB-INF/views/ spring.mvc.view.suffix:.jsp/

• To run the application run com.studentRegistration/StudentRegistrationApplication.java as Java Application.

/*package com.studentRegistration;

import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.builder.SpringApplicationBuilder; import org.springframework.boot.web.support.SpringBootServletInitializer;

@SpringBootApplication public class StudentRegistrationApplication extends SpringBootServletInitializer {
@Override protected SpringApplicationBuilder configure(org.springframework.boot.builder.SpringApplicationBuilder application) { return application.sources(StudentRegistrationApplication.class); }

public static void main(String[] args) {  
			
	SpringApplication.run(StudentRegistrationApplication.class, args);
	
}

} */

• Once Server Started open browser go to localhost:8080/enrol to initiate application.
• Data through Jsp forms are recieved by the application through several RequestMappings.
• StudentRegistrationController.java Class Handled All the page Requests and their corresponding mappings.
• The RESTful API is done by receiving a set of requests and then send appropriate data back to the request.
• The API is then compiled into a WAR file using maven, which adds only the dependencies that are used , and ignore the ones that are not specified.
• Since we have a MySQL Connection established , we need to provide the service in pivotal dashboard.
• This is done by enabling ClearMySQL Database service by giving an appropriate Instance Name.
• The API is then hosted on Cloud Foundry by pushing the WAR file to the pivotal dashboard.

To login in Terminal Type cf then follow these commands

cf login -a api.run.pivotal.io To push application cf push studentRegistration -p target\studentRegistration.war To logout cf logout