Hibernate+maven+mysql

最近在研究hibernate，想建立一个简单的Hibernate+maven+mysql工程，网上找了一大堆的示例，要么看不懂结构，要么就是缺少必要文件。总之都没有成功，结果无意在一个外文网上找了一个实例，惊叹于人家的排版。也不得不感叹的说下浩瀚的百度里，想找到自己想要的东西是多么难啊！

以下借鉴人家文章和内容并做部分补充，以供初学者一起分享：

（准备工作myeclipse的安装+maven的下载+mysql的配置略过）

1.mysql中建一个mkyong的数据库，其下面新建一个stock的空表格。

  //启动mysql服务器  sudo service mysql start 　//进入mysql  mysql -uroot -p  输入mysql密码 　//创建数据库mkyong  >create database mkyong; 　//使用数据库mkyong  >use mkyong; 　//在数据库mkyong中创建表stock。请直接copy。 >create table stock (      `STOCK_ID` INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,      `STOCK_CODE` VARCHAR(10) NOT NULL,      `STOCK_NAME` VARCHAR(20) NOT NULL,      PRIMARY KEY (`STOCK_ID`) USING BTREE,      UNIQUE KEY `UNI_STOCK_NAME` (`STOCK_NAME`),      UNIQUE KEY `UNI_STOCK_ID` (`STOCK_CODE`) USING BTREE     ) ENGINE=InnoDB DEFAULT CHARSET=utf8;

2.在myeclipse中创建一个maven工程，自己取一个名字。

New --> Project --> Maven Project --> Next --> 在(New Maven Project )中选择创建一个webapp项目

3.创建源文件（Source Folder）

在 “src/main”目录下创建 “/src/main/resources” , 之后所有的Hibernate’s

在“src/main”目录下创建“/src/main/java”文件，其中放置java源代码文件。

4.现在该工程的结构看起来如下：

5.添加Hibernate和Mysql依赖

修改项目的pom.

文件：pom.

<project ="http://maven.apache.org/POM/4.0.0" ="http://www.w3.org/2001/ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com</groupId> <artifactId>Hibernate</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>Hibernate Maven Webapp</name> <url>http://maven.apache.org</url> <dependencies>  <dependency>   <groupId>junit</groupId>   <artifactId>junit</artifactId>   <version>3.8.1</version>   <scope>test</scope>  </dependency>    <!-- MySQL database driver -->  <dependency>    <groupId>mysql</groupId>    <artifactId>mysql-connector-java</artifactId>    <version>5.1.9</version>  </dependency>  <!-- Hibernate library dependecy start -->  <dependency>    <groupId>dom4j</groupId>    <artifactId>dom4j</artifactId>    <version>1.6.1</version>  </dependency>   <dependency>    <groupId>commons-logging</groupId>    <artifactId>commons-logging</artifactId>    <version>1.1.1</version>  </dependency>  <!-- http://mvnrepository.com/artifact/org.hibernate/hibernate -->  <dependency>    <groupId>org.hibernate</groupId>    <artifactId>hibernate</artifactId>    <version>3.2.6.ga</version>  </dependency>  <dependency>    <groupId>commons-collections</groupId>    <artifactId>commons-collections</artifactId>    <version>3.2.1</version>  </dependency>  <dependency>    <groupId>cglib</groupId>    <artifactId>cglib-nodep</artifactId>    <version>3.1</version>  </dependency>  <!-- Hibernate library dependecy end -->  <dependency>    <groupId>javax.transaction</groupId>    <artifactId>jta</artifactId>    <version>1.1</version>  </dependency>  </dependencies> <build>  <finalName>Hibernate</finalName> </build></project>

6.创建Hibernate类表映射文件

新建一个Stock.hbm.映射文件，路径为：“src/main/resources/com/mkyong/common/Stock.hbm.“

文件：Stock.hbm.

<??><!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN""http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"><hibernate-mapping>  <class name="com.mkyong.common.Stock" table="stock" catalog="mkyong">    <id name="stockId" type="java.lang.Integer">      <column name="STOCK_ID" />      <generator class="identity" />    </id>    <property name="stockCode" type="string">      <column name="STOCK_CODE" length="10" not-null="true" unique="true" />    </property>    <property name="stockName" type="string">      <column name="STOCK_NAME" length="20" not-null="true" unique="true" />    </property>  </class></hibernate-mapping>

package com.mkyong.common;/** * Model class for Stock */public class Stock implements java.io.Serializable {   private static final long serialVersionUID = 1L;  private Stock stock;  private Integer stockId;   private String stockCode;   private String stockName;  public Stock() {  }  public Stock(String stockCode, String stockName) {    this.stockCode = stockCode;    this.stockName = stockName;  }  public Integer getStockId() {    return this.stockId;  }   public void setStockId(Integer stockId) {    this.stockId = stockId;  }   public String getStockCode() {    return this.stockCode;  }   public void setStockCode(String stockCode) {    this.stockCode = stockCode;  }  public String getStockName() {    return this.stockName;  }  public void setStockName(String stockName) {    this.stockName = stockName;  }  public Stock getOper() {    return stock;  }   public void setOper(Stock stock) {    this.stock = stock;  }}

<??><!DOCTYPE hibernate-configuration PUBLIC"-//Hibernate/Hibernate Configuration DTD 3.0//EN""http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"><hibernate-configuration>  <session-factory>    <property name="hibernate.bytecode.use_reflection_optimizer">false</property>    <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>    <property name="hibernate.connection.password">数据库的密码</property>    <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/mkyong</property>    <property name="hibernate.connection.username">root</property>    <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>    <property name="person">true</property>    <mapping resource="com/mkyong/common/Stock.hbm.></mapping>  </session-factory></hibernate-configuration>

package com.mkyong.persistence;import org.hibernate.SessionFactory;import org.hibernate.cfg.Configuration;public class HibernateUtil {  private static final SessionFactory sessionFactory = buildSessionFactory();   private static SessionFactory buildSessionFactory() {    try {      // Create the SessionFactory from hibernate.cfg.configure().buildSessionFactory();    }    catch (Throwable ex) {      // Make sure you log the exception, as it might be swallowed      System.err.println("Initial SessionFactory creation failed." + ex);      throw new ExceptionInInitializerError(ex);    }  }  public static SessionFactory getSessionFactory() {    return sessionFactory;  }     public static void shutdown() {    // Close caches and connection pools    getSessionFactory().close();  }}

package com.mkyong.common;import org.hibernate.Session;import com.mkyong.persistence.HibernateUtil;public class App {   public static void main( String[] args )  {    System.out.println("Maven + Hibernate + MySQL");    Session session = HibernateUtil.getSessionFactory().openSession();        session.beginTransaction();    Stock stock = new Stock();        stock.setStockCode("4715");    stock.setStockName("GENM");        session.save(stock);    session.getTransaction().commit();  }}

Picked up _JAVA_OPTIONS:  -Dawt.useSystemAAFontSettings=gaspMaven + Hibernate + MySQL.......五月 24, 2016 5:31:56 上午 org.hibernate.impl.SessionFactoryImpl <init>信息: building session factory五月 24, 2016 5:31:56 上午 org.hibernate.impl.SessionFactoryObjectFactory addInstance信息: Hibernate: insert into mkyong.stock (STOCK_CODE, STOCK_NAME) values (?, ?)