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Commit 3366b6e

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add Spring MVC Hibernate Mysql integration CRUD Example
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‎pom.xml‎

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<?xml version="1.0"?>
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<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
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xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.javabycode.springmvc</groupId>
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<artifactId>SpringMVCHibernateExample</artifactId>
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<packaging>war</packaging>
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<name>SpringMVCHibernateExample</name>
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<version>1.0</version>
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<properties>
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<springframework.version>4.3.0.RELEASE</springframework.version>
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<hibernate.version>4.3.6.Final</hibernate.version>
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<mysql.version>5.1.31</mysql.version>
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<joda-time.version>2.3</joda-time.version>
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</properties>
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<dependencies>
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<!-- Spring -->
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-core</artifactId>
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<version>${springframework.version}</version>
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</dependency>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-web</artifactId>
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<version>${springframework.version}</version>
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</dependency>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-webmvc</artifactId>
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<version>${springframework.version}</version>
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</dependency>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-tx</artifactId>
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<version>${springframework.version}</version>
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</dependency>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-orm</artifactId>
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<version>${springframework.version}</version>
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</dependency>
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<!-- Hibernate -->
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<dependency>
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<groupId>org.hibernate</groupId>
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<artifactId>hibernate-core</artifactId>
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<version>${hibernate.version}</version>
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</dependency>
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<!-- jsr303 validation -->
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<dependency>
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<groupId>javax.validation</groupId>
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<artifactId>validation-api</artifactId>
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<version>1.1.0.Final</version>
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</dependency>
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<dependency>
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<groupId>org.hibernate</groupId>
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<artifactId>hibernate-validator</artifactId>
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<version>5.1.3.Final</version>
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</dependency>
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<!-- MySQL -->
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<dependency>
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<groupId>mysql</groupId>
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<artifactId>mysql-connector-java</artifactId>
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<version>${mysql.version}</version>
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</dependency>
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<!-- Joda-Time -->
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<dependency>
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<groupId>joda-time</groupId>
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<artifactId>joda-time</artifactId>
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<version>${joda-time.version}</version>
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</dependency>
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<!-- To map JodaTime with database type -->
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<dependency>
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<groupId>org.jadira.usertype</groupId>
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<artifactId>usertype.core</artifactId>
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<version>3.0.0.CR1</version>
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</dependency>
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<!-- Servlet+JSP+JSTL -->
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<dependency>
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<groupId>javax.servlet</groupId>
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<artifactId>javax.servlet-api</artifactId>
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<version>3.1.0</version>
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</dependency>
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<dependency>
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<groupId>javax.servlet.jsp</groupId>
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<artifactId>javax.servlet.jsp-api</artifactId>
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<version>2.3.1</version>
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</dependency>
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<dependency>
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<groupId>javax.servlet</groupId>
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<artifactId>jstl</artifactId>
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<version>1.2</version>
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</dependency>
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</dependencies>
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<build>
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<finalName>spring-mvc-hibernate-example</finalName>
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<plugins>
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<plugin>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>3.5.1</version>
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<configuration>
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<source>1.7</source>
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<target>1.7</target>
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</configuration>
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</plugin>
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<plugin>
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<artifactId>maven-war-plugin</artifactId>
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<version>2.6</version>
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<configuration>
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<failOnMissingWebXml>false</failOnMissingWebXml>
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</configuration>
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</plugin>
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</plugins>
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</build>
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</project>
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package com.javabycode.springmvc.configuration;
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import java.util.Properties;
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import javax.sql.DataSource;
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import org.hibernate.SessionFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.ComponentScan;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.context.annotation.PropertySource;
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import org.springframework.core.env.Environment;
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import org.springframework.jdbc.datasource.DriverManagerDataSource;
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import org.springframework.orm.hibernate4.HibernateTransactionManager;
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import org.springframework.orm.hibernate4.LocalSessionFactoryBean;
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import org.springframework.transaction.annotation.EnableTransactionManagement;
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@Configuration
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@EnableTransactionManagement
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@ComponentScan({ "com.javabycode.springmvc.configuration" })
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@PropertySource(value = { "classpath:jdbc.properties" })
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public class MyHibernateConfig {
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@Autowired
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private Environment environment;
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@Bean
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public LocalSessionFactoryBean sessionFactory() {
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LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
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sessionFactory.setDataSource(dataSource());
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sessionFactory.setPackagesToScan(new String[] { "com.javabycode.springmvc.model" });
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sessionFactory.setHibernateProperties(hibernateProperties());
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return sessionFactory;
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}
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@Bean
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public DataSource dataSource() {
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DriverManagerDataSource dataSource = new DriverManagerDataSource();
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dataSource.setDriverClassName(environment.getRequiredProperty("jdbc.driverClassName"));
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dataSource.setUrl(environment.getRequiredProperty("jdbc.url"));
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dataSource.setUsername(environment.getRequiredProperty("jdbc.username"));
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dataSource.setPassword(environment.getRequiredProperty("jdbc.password"));
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return dataSource;
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}
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private Properties hibernateProperties() {
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Properties properties = new Properties();
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properties.put("hibernate.dialect", environment.getRequiredProperty("hibernate.dialect"));
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properties.put("hibernate.show_sql", environment.getRequiredProperty("hibernate.show_sql"));
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properties.put("hibernate.format_sql", environment.getRequiredProperty("hibernate.format_sql"));
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return properties;
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}
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@Bean
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@Autowired
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public HibernateTransactionManager transactionManager(SessionFactory s) {
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HibernateTransactionManager txManager = new HibernateTransactionManager();
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txManager.setSessionFactory(s);
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return txManager;
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}
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}
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package com.javabycode.springmvc.configuration;
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import org.springframework.context.MessageSource;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.ComponentScan;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.context.support.ResourceBundleMessageSource;
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import org.springframework.web.servlet.ViewResolver;
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import org.springframework.web.servlet.config.annotation.EnableWebMvc;
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import org.springframework.web.servlet.view.InternalResourceViewResolver;
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import org.springframework.web.servlet.view.JstlView;
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@Configuration
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@EnableWebMvc
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@ComponentScan(basePackages = "com.javabycode.springmvc")
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public class MyWebConfig {
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@Bean
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public ViewResolver viewResolver() {
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InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
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viewResolver.setViewClass(JstlView.class);
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viewResolver.setPrefix("/WEB-INF/views/");
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viewResolver.setSuffix(".jsp");
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return viewResolver;
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}
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@Bean
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public MessageSource messageSource() {
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ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource();
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messageSource.setBasename("messages");
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return messageSource;
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}
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}
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package com.javabycode.springmvc.configuration;
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import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
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public class ServletInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
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@Override
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protected Class<?>[] getServletConfigClasses() {
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return new Class[] { MyWebConfig.class };
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}
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@Override
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protected String[] getServletMappings() {
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return new String[] { "/" };
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}
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@Override
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protected Class<?>[] getRootConfigClasses() {
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return null;
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}
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}
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package com.javabycode.springmvc.controller;
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import java.util.List;
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import java.util.Locale;
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import javax.validation.Valid;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.context.MessageSource;
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import org.springframework.stereotype.Controller;
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import org.springframework.ui.ModelMap;
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import org.springframework.validation.BindingResult;
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import org.springframework.validation.FieldError;
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import org.springframework.web.bind.annotation.PathVariable;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestMethod;
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import com.javabycode.springmvc.model.Student;
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import com.javabycode.springmvc.service.StudentService;
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@Controller
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@RequestMapping("/")
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public class MyController {
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@Autowired
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StudentService service;
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@Autowired
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MessageSource messageSource;
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/*
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* List all existing Students.
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*/
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@RequestMapping(value = { "/", "/list" }, method = RequestMethod.GET)
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public String listStudents(ModelMap model) {
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List<Student> students = service.findAllStudents();
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model.addAttribute("students", students);
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return "allstudents";
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}
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/*
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* Add a new Student.
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*/
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@RequestMapping(value = { "/new" }, method = RequestMethod.GET)
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public String newStudent(ModelMap model) {
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Student student = new Student();
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model.addAttribute("student", student);
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model.addAttribute("edit", false);
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return "registration";
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}
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/*
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* Handling POST request for validating the user input and saving Student in database.
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*/
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@RequestMapping(value = { "/new" }, method = RequestMethod.POST)
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public String saveStudent(@Valid Student student, BindingResult result,
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ModelMap model) {
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if (result.hasErrors()) {
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return "registration";
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}
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if(!service.isStudentCodeUnique(student.getId(), student.getCode())){
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FieldError codeError =new FieldError("Student","code",messageSource.getMessage("non.unique.code", new String[]{student.getCode()}, Locale.getDefault()));
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result.addError(codeError);
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return "registration";
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}
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service.saveStudent(student);
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model.addAttribute("success", "Student " + student.getName() + " registered successfully");
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return "success";
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}
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/*
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* Provide the existing Student for updating.
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*/
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@RequestMapping(value = { "/edit-{code}-student" }, method = RequestMethod.GET)
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public String editStudent(@PathVariable String code, ModelMap model) {
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Student student = service.findStudentByCode(code);
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model.addAttribute("student", student);
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model.addAttribute("edit", true);
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return "registration";
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}
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/*
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* Handling POST request for validating the user input and updating Student in database.
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*/
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@RequestMapping(value = { "/edit-{code}-student" }, method = RequestMethod.POST)
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public String updateStudent(@Valid Student student, BindingResult result,
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ModelMap model, @PathVariable String code) {
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if (result.hasErrors()) {
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return "registration";
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}
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if(!service.isStudentCodeUnique(student.getId(), student.getCode())){
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FieldError codeError =new FieldError("Student","code",messageSource.getMessage("non.unique.code", new String[]{student.getCode()}, Locale.getDefault()));
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result.addError(codeError);
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return "registration";
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}
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service.updateStudent(student);
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model.addAttribute("success", "Student " + student.getName() + " updated successfully");
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return "success";
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}
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/*
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* Delete an Student by it's CODE value.
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*/
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@RequestMapping(value = { "/delete-{code}-student" }, method = RequestMethod.GET)
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public String deleteStudent(@PathVariable String code) {
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service.deleteStudentByCode(code);
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return "redirect:/list";
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}
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}

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