new spring jpa tutorial

spring-jpa/src/main/java/org/baeldung/spring/persistence/config/HibernateXmlConfig.java

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+package org.baeldung.spring.persistence.config;
+
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.ImportResource;
+import org.springframework.transaction.annotation.EnableTransactionManagement;
+
+@Configuration
+@EnableTransactionManagement
+@ComponentScan({ "org.baeldung.spring.persistence.dao", "org.baeldung.spring.persistence.service" })
+@ImportResource({ "classpath:hibernate4Config.xml" })
+public class HibernateXmlConfig {
+
+    public HibernateXmlConfig() {
+        super();
+    }
+
+}

spring-jpa/src/main/java/org/baeldung/spring/persistence/config/PersistenceConfig.java

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+package org.baeldung.spring.persistence.config;
+
+import java.util.Properties;
+
+import javax.sql.DataSource;
+
+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.context.annotation.PropertySource;
+import org.springframework.core.env.Environment;
+import org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor;
+import org.springframework.jdbc.datasource.DriverManagerDataSource;
+import org.springframework.orm.hibernate4.HibernateTransactionManager;
+import org.springframework.orm.hibernate4.LocalSessionFactoryBean;
+import org.springframework.transaction.annotation.EnableTransactionManagement;
+
+import com.google.common.base.Preconditions;
+
+@Configuration
+@EnableTransactionManagement
+@PropertySource({ "classpath:persistence-mysql.properties" })
+@ComponentScan({ "org.baeldung.spring.persistence.dao", "org.baeldung.spring.persistence.service" })
+public class PersistenceConfig {
+
+    @Autowired
+    private Environment env;
+
+    public PersistenceConfig() {
+        super();
+    }
+
+    @Bean
+    public LocalSessionFactoryBean sessionFactory() {
+        final LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
+        sessionFactory.setDataSource(restDataSource());
+        sessionFactory.setPackagesToScan(new String[] { "org.baeldung.spring.persistence.model" });
+        sessionFactory.setHibernateProperties(hibernateProperties());
+
+        return sessionFactory;
+    }
+
+    @Bean
+    public DataSource restDataSource() {
+        final DriverManagerDataSource dataSource = new DriverManagerDataSource();
+        dataSource.setDriverClassName(Preconditions.checkNotNull(env.getProperty("jdbc.driverClassName")));
+        dataSource.setUrl(Preconditions.checkNotNull(env.getProperty("jdbc.url")));
+        dataSource.setUsername(Preconditions.checkNotNull(env.getProperty("jdbc.user")));
+        dataSource.setPassword(Preconditions.checkNotNull(env.getProperty("jdbc.pass")));
+
+        return dataSource;
+    }
+
+    @Bean
+    public HibernateTransactionManager transactionManager() {
+        final HibernateTransactionManager txManager = new HibernateTransactionManager();
+        txManager.setSessionFactory(sessionFactory().getObject());
+
+        return txManager;
+    }
+
+    @Bean
+    public PersistenceExceptionTranslationPostProcessor exceptionTranslation() {
+        return new PersistenceExceptionTranslationPostProcessor();
+    }
+
+    final Properties hibernateProperties() {
+        return new Properties() {
+            {
+                setProperty("hibernate.hbm2ddl.auto", env.getProperty("hibernate.hbm2ddl.auto"));
+                setProperty("hibernate.dialect", env.getProperty("hibernate.dialect"));
+
+                // setProperty("hibernate.globally_quoted_identifiers", "true");
+                // note: necessary in launchpad-storage, but causing problems here
+            }
+        };
+    }
+}

spring-jpa/src/main/java/org/baeldung/spring/persistence/dao/FooDao.java

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+package org.baeldung.spring.persistence.dao;
+
+import java.util.List;
+
+import org.baeldung.spring.persistence.model.Foo;
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Repository;
+
+import com.google.common.base.Preconditions;
+
+@Repository
+public class FooDao implements IFooDao {
+
+    @Autowired
+    private SessionFactory sessionFactory;
+
+    public FooDao() {
+        super();
+    }
+
+    // API
+
+    @Override
+    public Foo findOne(final Long id) {
+        Preconditions.checkArgument(id != null);
+        return (Foo) getCurrentSession().get(Foo.class, id);
+    }
+
+    @Override
+    @SuppressWarnings("unchecked")
+    public List<Foo> findAll() {
+        return getCurrentSession().createQuery("from " + Foo.class.getName()).list();
+    }
+
+    @Override
+    public void create(final Foo entity) {
+        Preconditions.checkNotNull(entity);
+        getCurrentSession().persist(entity);
+    }
+
+    @Override
+    public void update(final Foo entity) {
+        Preconditions.checkNotNull(entity);
+        getCurrentSession().merge(entity);
+    }
+
+    @Override
+    public void delete(final Foo entity) {
+        Preconditions.checkNotNull(entity);
+        getCurrentSession().delete(entity);
+    }
+
+    @Override
+    public void deleteById(final Long entityId) {
+        final Foo entity = findOne(entityId);
+        Preconditions.checkState(entity != null);
+        delete(entity);
+    }
+
+    protected final Session getCurrentSession() {
+        return sessionFactory.getCurrentSession();
+    }
+
+}

spring-jpa/src/main/java/org/baeldung/spring/persistence/dao/IFooDao.java

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+package org.baeldung.spring.persistence.dao;
+
+import java.util.List;
+
+import org.baeldung.spring.persistence.model.Foo;
+
+public interface IFooDao {
+
+    Foo findOne(Long id);
+
+    List<Foo> findAll();
+
+    void create(Foo entity);
+
+    void update(Foo entity);
+
+    void delete(Foo entity);
+
+    void deleteById(Long entityId);
+
+}

spring-jpa/src/main/java/org/baeldung/spring/persistence/model/Foo.java

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+package org.baeldung.spring.persistence.model;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.validation.constraints.NotNull;
+
+@Entity
+public class Foo {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private long id;
+
+    @Column(nullable = false)
+    @NotNull
+    private String name;
+
+    public Foo() {
+        super();
+    }
+
+    public Foo(final String name) {
+        super();
+
+        this.name = name;
+    }
+
+    // API
+
+    public long getId() {
+        return id;
+    }
+
+    public void setId(final long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(final String name) {
+        this.name = name;
+    }
+
+    //
+
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + ((name == null) ? 0 : name.hashCode());
+        return result;
+    }
+
+    @Override
+    public boolean equals(final Object obj) {
+        if (this == obj)
+            return true;
+        if (obj == null)
+            return false;
+        if (getClass() != obj.getClass())
+            return false;
+        final Foo other = (Foo) obj;
+        if (name == null) {
+            if (other.name != null)
+                return false;
+        } else if (!name.equals(other.name))
+            return false;
+        return true;
+    }
+
+    @Override
+    public String toString() {
+        final StringBuilder builder = new StringBuilder();
+        builder.append("Foo [name=").append(name).append("]");
+        return builder.toString();
+    }
+
+}

spring-jpa/src/main/java/org/baeldung/spring/persistence/service/FooService.java

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+package org.baeldung.spring.persistence.service;
+
+import org.baeldung.spring.persistence.dao.IFooDao;
+import org.baeldung.spring.persistence.model.Foo;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+@Transactional
+public class FooService {
+
+    @Autowired
+    private IFooDao dao;
+
+    public FooService() {
+        super();
+    }
+
+    // API
+
+    public void create(final Foo entity) {
+        dao.create(entity);
+    }
+
+}

spring-jpa/src/main/resources/hibernate4Config.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans" 
+   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
+   xmlns:context="http://www.springframework.org/schema/context"
+   xsi:schemaLocation="
+      http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
+      http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd">
+
+    <context:property-placeholder location="classpath:persistence-mysql.properties" />
+    
+    <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
+        <property name="dataSource" ref="dataSource" />
+        <property name="packagesToScan" value="org.baeldung.spring.persistence.model" />
+        <property name="hibernateProperties">
+            <props>
+                <prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>
+                <prop key="hibernate.dialect">${hibernate.dialect}</prop>
+            </props>
+        </property>
+    </bean>
+
+    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
+        <property name="driverClassName" value="${jdbc.driverClassName}" />
+        <property name="url" value="${jdbc.url}" />
+        <property name="username" value="${jdbc.user}" />
+        <property name="password" value="${jdbc.pass}" />
+    </bean>
+
+    <bean id="txManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
+        <property name="sessionFactory" ref="sessionFactory" />
+    </bean>
+    
+    <bean id="persistenceExceptionTranslationPostProcessor" class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor" />
+
+</beans>

spring-jpa/src/main/resources/logback.xml

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+<configuration>
+
+	<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+		<encoder>
+			<pattern>web - %date [%thread] %-5level %logger{36} - %message%n
+			</pattern>
+		</encoder>
+	</appender>
+
+	<logger name="org.springframework" level="WARN" />
+	<logger name="org.springframework.transaction" level="WARN" />
+
+	<!-- in order to debug some marshalling issues, this needs to be TRACE -->
+	<logger name="org.springframework.web.servlet.mvc" level="WARN" />
+
+	<root level="INFO">
+		<appender-ref ref="STDOUT" />
+	</root>
+
+</configuration>

spring-jpa/src/main/resources/persistence-mysql.properties

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+# jdbc.X
+jdbc.driverClassName=com.mysql.jdbc.Driver
+jdbc.url=jdbc:mysql://localhost:3306/spring_hibernate_dao_01?createDatabaseIfNotExist=true
+jdbc.user=tutorialuser
+jdbc.pass=tutorialmy5ql
+
+# hibernate.X
+hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
+hibernate.show_sql=false
+hibernate.hbm2ddl.auto=create-drop

spring-jpa/src/main/resources/webSecurityConfig.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<beans:beans xmlns="http://www.springframework.org/schema/security" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xmlns:beans="http://www.springframework.org/schema/beans"
+	xsi:schemaLocation="
+		http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security-3.1.xsd
+		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd">
+
+	<http access-denied-page="/access-denied.html" use-expressions="true">
+		<intercept-url pattern="/access-denied*" access="hasAnyRole('ROLE_LOCATION_WRITE','ROLE_POLYGON_WRITE')" />
+		<intercept-url pattern="/admin/**" access="hasAnyRole('ROLE_ADMIN')" />
+		<intercept-url pattern="/organization/**" access="hasAnyRole('ROLE_ORGANIZATION')" />
+		<intercept-url pattern="/location/edit*" access="hasAnyRole('ROLE_LOCATION_WRITE')" />
+		<intercept-url pattern="/location/view*" access="permitAll" />
+
+		<intercept-url pattern="/login*" access="isAnonymous()" />
+		<intercept-url pattern="/register*" access="isAnonymous()" />
+		<intercept-url pattern="/login-denied/**" access="isAnonymous()" />
+
+		<intercept-url pattern="/**" access="permitAll" />
+
+		<form-login login-page='/login.html' default-target-url="/" always-use-default-target="false" authentication-failure-url="/login.html?error=true" />
+
+		<logout />
+
+		<anonymous />
+
+		<session-management invalid-session-url="/">
+			<concurrency-control max-sessions="1" />
+		</session-management>
+	</http>
+
+	<authentication-manager alias="authenticationManager" erase-credentials="false">
+		<authentication-provider ref="restAuthenticationProvider" />
+	</authentication-manager>
+
+</beans:beans>

spring-jpa/src/main/webapp/WEB-INF/mvc-servlet.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd" >
+
+</beans>

spring-jpa/src/main/webapp/WEB-INF/view/sample.jsp

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+<html>
+<head></head>
+
+<body>
+	<h1>This is the body of the sample view</h1>
+</body>
+</html>

spring-jpa/src/main/webapp/WEB-INF/web.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
+  <display-name>Spring MVC Application</display-name>
+  <context-param>
+    <param-name>contextClass</param-name>
+    <param-value>
+            org.springframework.web.context.support.AnnotationConfigWebApplicationContext
+      	</param-value>
+  </context-param>
+  <context-param>
+    <param-name>contextConfigLocation</param-name>
+    <param-value>org.baeldung.spring.persistence.config</param-value>
+  </context-param>
+  <listener>
+    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
+  </listener>
+</web-app>

spring-jpa/src/test/java/org/baeldung/spring/persistence/service/FooServicePersistenceIntegrationTest.java

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+package org.baeldung.spring.persistence.service;
+
+import static org.apache.commons.lang3.RandomStringUtils.randomAlphabetic;
+
+import org.baeldung.spring.persistence.config.PersistenceConfig;
+import org.baeldung.spring.persistence.model.Foo;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.dao.DataIntegrityViolationException;
+import org.springframework.dao.InvalidDataAccessApiUsageException;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.support.AnnotationConfigContextLoader;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(classes = { PersistenceConfig.class }, loader = AnnotationConfigContextLoader.class)
+public class FooServicePersistenceIntegrationTest {
+
+    @Autowired
+    private FooService service;
+
+    // tests
+
+    @Test
+    public final void whenContextIsBootstrapped_thenNoExceptions() {
+        //
+    }
+
+    @Test
+    public final void whenEntityIsCreated_thenNoExceptions() {
+        service.create(new Foo(randomAlphabetic(6)));
+    }
+
+    @Test(expected = DataIntegrityViolationException.class)
+    public final void whenInvalidEntityIsCreated_thenDataException() {
+        service.create(new Foo());
+    }
+
+    @Test(expected = DataIntegrityViolationException.class)
+    public final void whenEntityWithLongNameIsCreated_thenDataException() {
+        service.create(new Foo(randomAlphabetic(2048)));
+    }
+
+    @Test(expected = InvalidDataAccessApiUsageException.class)
+    public final void whenSameEntityIsCreatedTwice_thenDataException() {
+        final Foo entity = new Foo(randomAlphabetic(8));
+        service.create(entity);
+        service.create(entity);
+    }
+
+    @Test
+    public final void temp_whenInvalidEntityIsCreated_thenDataException() {
+        service.create(new Foo(randomAlphabetic(2048)));
+    }
+
+}

spring-jpa/src/test/resources/.gitignore

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+*.class
+
+#folders#
+/target
+/neoDb*
+/data
+/src/main/webapp/WEB-INF/classes
+*/META-INF/*
+
+# Packaged files #
+*.jar
+*.war
+*.ear