Spring Data Development Environment Construction (II.)

First, let's create a MAVEN project.

Join the following dependencies in Pom.xml

<!--Mysql Driver Pack -    <Dependency>      <groupId>Mysql</groupId>      <Artifactid>Mysql-connector-java</Artifactid>      <version>5.1.38</version>    </Dependency><!--HTTPS://MVNREPOSITORY.COM/ARTIFACT/ORG.SPRINGFRAMEWORK.DATA/SPRING-DATA-JPA -    <Dependency>      <groupId>Org.springframework.data</groupId>      <Artifactid>Spring-data-jpa</Artifactid>      <version>1.11.6.RELEASE</version>    </Dependency>    <!--Https://mvnrepository.com/artifact/org.hibernate/hibernate-entitymanager -    <Dependency>      <groupId>Org.hibernate</groupId>      <Artifactid>Hibernate-entitymanager</Artifactid>      <version>5.2.9.Final</version>    </Dependency>

Then configure the spring file

Create a bean.xml<? XML version= "1.0" encoding= "UTF-8" ?>

<Beansxmlns= "Http://www.springframework.org/schema/beans"Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"Xmlns:context= "Http://www.springframework.org/schema/context"Xmlns:tx= "Http://www.springframework.org/schema/tx"XMLNS:JPA= "HTTP://WWW.SPRINGFRAMEWORK.ORG/SCHEMA/DATA/JPA"xsi:schemalocation= "Http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd HTTP://WWW.SPRINGFRAMEWORK.ORG/SCHEMA/DATA/JPA http://www.springframework.org/schema/data/jpa/ Spring-jpa-1.3.xsd Http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/ Spring-tx-4.0.xsd Http://www.springframework.org/schema/context http://www.springframework.org/schema/context/ Spring-context-4.0.xsd ">    <!--Configure the data source -    <BeanID= "DataSource"class= "Org.springframework.jdbc.datasource.DriverManagerDataSource">        < Propertyname= "Driverclassname"value= "Com.mysql.jdbc.Driver"/>        < Propertyname= "username"value= "root"/>        < Propertyname= "Password"value= "123"/>        < Propertyname= "url"value= "Jdbc:mysql:///springdata"/>    </Bean>    <!--Configure Entitymanagerfactory -    <BeanID= "Entitymanagerfactory"class= "Org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">        < Propertyname= "DataSource"ref= "DataSource"/>        < Propertyname= "Jpavendoradapter">            <Beanclass= "Org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"/>        </ Property>        < Propertyname= "Packagestoscan"value= "Org.springdata"/>        < Propertyname= "Jpaproperties">            <Props>                <propKey= "Hibernate.ejb.naming_strategy">Org.hibernate.cfg.ImprovedNamingStrategy</prop>                <propKey= "Hibernate.dialect">Org.hibernate.dialect.MySQL5InnoDBDialect</prop>                <propKey= "Hibernate.show_sql">True</prop>                <propKey= "Hibernate.format_sql">True</prop>                <propKey= "Hibernate.hbm2ddl.auto">Update</prop>            </Props>        </ Property>    </Bean>    <!--3 Configuring the transaction manager -    <BeanID= "TransactionManager"class= "Org.springframework.orm.jpa.JpaTransactionManager">        < Propertyname= "Entitymanagerfactory"ref= "Entitymanagerfactory"/>    </Bean>    <!--4 Configuring a transaction that supports annotations -    <Tx:annotation-drivenTransaction-manager= "TransactionManager"/>    <!--5 Configuring Spring Data -    <jpa:repositoriesBase-package= "Org.springdata"Entity-manager-factory-ref= "Entitymanagerfactory"/>    <Context:component-scanBase-package= "Org.springdata"/></Beans>

Create an entity class Employee.java we can automatically generate data tables with JPA annotations

　　

 PackageOrg.springdata.domain;ImportJavax.persistence.Column;Importjavax.persistence.Entity;ImportJavax.persistence.GeneratedValue;Importjavax.persistence.Id;/*** Employee: First Develop entity class ===> automatically generate data table*/@Entity Public classEmployee {PrivateInteger ID; PrivateString name; PrivateInteger age; @GeneratedValue @Id PublicInteger getId () {returnID; }     Public voidsetId (Integer id) { This. ID =ID; } @Column (Length= 20)     PublicString GetName () {returnname; }     Public voidsetName (String name) { This. Name =name; }     PublicInteger getage () {returnAge ; }     Public voidsetage (Integer age) { This. Age =Age ; }}

 PackageOrg.springdata;ImportOrg.junit.After;ImportOrg.junit.Before;Importorg.junit.Test;ImportOrg.springframework.context.ApplicationContext;ImportOrg.springframework.context.support.ClassPathXmlApplicationContext;/*** Test Class*/ Public classSpringdatatest {PrivateApplicationContext CTX =NULL; @Before Public voidSetup () {CTX=NewClasspathxmlapplicationcontext ("Beans.xml"); System.out.println ("Setup"); } @After Public voidTearDown () {CTX=NULL; System.out.println ("TearDown"); } @Test Public voidtestentitymanagerfactory () {}}

Create a test class as shown on the green horizontal bar indicates success, in the database to see if the successful creation of an employee table

All right, the environment is here. Is it easy to focus on walking and living to 99 old iron?

Spring Data Development Environment Construction (II.)