javamvc

package it.scai.tutoring.ecommerce.config;

import java.util.Properties;

import javax.naming.NamingException;
import javax.persistence.EntityManagerFactory;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.JpaVendorAdapter;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
import org.springframework.web.servlet.view.JstlView;


//@EnableWebMvc
@Configuration
@EnableWebMvc
//@ComponentScan(basePackages =  {"it.scai.tutoring.ecommerce"})
@ComponentScan(basePackages = {"it.scai.tutoring.ecommerce"})
@EnableTransactionManagement
public class SpringConfig extends WebMvcConfigurerAdapter{

//  @Bean
//    public ViewResolver viewResolver() {
//        InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
//        viewResolver.setViewClass(JstlView.class);
//        viewResolver.setPrefix("/jsp/");
//        viewResolver.setSuffix(".jsp");
//
//        return viewResolver;
//    }

    @Override
    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }

    @Bean
    public InternalResourceViewResolver getInternalResourceViewResolver() {
        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
        resolver.setPrefix("/jsp/");
        resolver.setSuffix(".jsp");
        return resolver;
    }

    @Bean
    public DriverManagerDataSource getDataSource() {
        DriverManagerDataSource dataSource = new DriverManagerDataSource();
        dataSource.setDriverClassName("com.mysql.jdbc.Driver");
        dataSource.setUrl("jdbc:mysql://localhost:3306/ecommerce2");
        dataSource.setUsername("root");
        dataSource.setPassword("root");
        return dataSource;
    }
    @Bean
    @Autowired
    public PlatformTransactionManager getTransactionManager(EntityManagerFactory emf) throws NamingException{
        //Adopero il JpaTransactionManager per gestire le transazioni
        JpaTransactionManager jpaTransaction = new JpaTransactionManager();
        jpaTransaction.setEntityManagerFactory(emf);
        return jpaTransaction;
    }

    //Classe di Spring che permette di istanziare l'EntityManager
    //Potrei usare anche LocalEntityManagerFactoryBean che va bene per applicazioni semplici ma è meno flessibile
    //Usando LocalContainerEntityManagerFactoryBean posso impostare poù opzioni.
    @Bean
    public LocalContainerEntityManagerFactoryBean getEntityManagerFactory() {

        LocalContainerEntityManagerFactoryBean emf = new LocalContainerEntityManagerFactoryBean();
        emf.setDataSource(getDataSource()); //imposto il DataSource creato sopra
        emf.setPersistenceUnitName("EcommerceDan");// Vedi persistence.xml
        emf.setJpaVendorAdapter(getHibernateAdapter());//imposto l'Adapter: Dico a Spring che mi dovrà implementare la specifica JPA con hibernate
        Properties jpaProperties = new Properties();
        jpaProperties.put("hibernate.dialect", "org.hibernate.dialect.MySQLDialect");
        jpaProperties.put("hibernate.hbm2ddl.auto", "update");
        jpaProperties.put("hibernate.show_sql", "true");
        jpaProperties.put("hibernate.format_sql", "true");
        //jpaProperties.put("hibernate.enable_lazy_load_no_trans", "true");
        emf.setJpaProperties(jpaProperties);
        return emf;
    }
    //Creo il mio Adapter JPA che Spring inietterà nell'EntityManagerFactory. Adopererò hibernate
    @Bean
    public JpaVendorAdapter getHibernateAdapter() {
        return new HibernateJpaVendorAdapter();
    }

}

//----------------------------------------------------------------------


package it.scai.tutoring.ecommerce.controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.servlet.ModelAndView;

import it.scai.tutoring.ecommerce.business.service.LoginService;
import it.scai.tutoring.ecommerce.dto.LoginCredentials;
import it.scai.tutoring.ecommerce.dto.LoginResult;

@RestController
public class LoginController {

    @Autowired
    private LoginService ecommerce;

    // @RequestMapping("/hello")
    @GetMapping("/pippo")
    public String add() {
        System.out.println("mapped /pippo");
        return "hello";
    }

    @RequestMapping("/login")
    public ModelAndView showLogin(HttpServletRequest request, HttpServletResponse response) {
        ModelAndView mav = new ModelAndView("login");
        mav.addObject("login", new LoginCredentials());
        return mav;
    }

    @RequestMapping(value = "/login", method = RequestMethod.POST)
    public ModelAndView loginProcess(HttpServletRequest request, HttpServletResponse response,
            @ModelAttribute("login") LoginCredentials login) {
        ModelAndView mav = null;

        LoginResult result = ecommerce.logIn(login.getUsername(), login.getPassword());

        if (result.isLoginOk()) {
            mav = new ModelAndView("welcome");
            mav.addObject("firstname", result.getNome());
        } else {
            mav = new ModelAndView("login");
            mav.addObject("message", "Username or Password is wrong!!");
        }

        return mav;
    }

    public LoginService getEcommerce() {
        return ecommerce;
    }

    public void setEcommerce(LoginService ecommerce) {
        this.ecommerce = ecommerce;
    }



}