本文介紹了eclipse下搭建hibernate5.0環境的步驟，分享給大家，具體如下：
二.安裝hibernate插件
打開eclipse，點擊help-->eclipse marketplace,如圖輸入:Hibernate Tools,再點擊Goa按鈕，找到JBoss Tools
點擊install安裝
如圖選擇Hibernate Tools，點擊Confrm安裝。安裝完成后重啟eclipse。
三. 創建工程
1.創建新項目hibernateDemo,在工程下建立lib文件夾。打開jar包的目錄，導入lib/required下的和數據庫的jar包，add to build path
在src下新建文件
點擊next,默認文件名，點擊next,如圖配置數據庫信息
選擇UTF-8編碼方式，點擊finish,生成的hibernate.cfg.xml配置文件內容如下
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"><hibernate-configuration> <session-factory> <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property> <property name="hibernate.connection.password">a123</property> <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/tb_test</property> <property name="hibernate.connection.username">sherman</property> <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property> </session-factory></hibernate-configuration>
注意，把 < session-factory name ="MySQL" > 的name屬性去掉，否則報org.hibernate.engine.jndi.JndiException異常，在該文件中添加一些配置，如圖：
<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"><hibernate-configuration> <session-factory> <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property> <property name="hibernate.connection.password">a123</property> <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/tb_test</property> <property name="hibernate.connection.username">sherman</property> <!-- 配置數據庫方言 --> <property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property> <!-- 控制臺打印sql語句 --> <property name="show_sql">true</property> <!-- 格式化sql --> <property name="format_sql">true</property> <!--在啟動時根據配置更新數據庫 --> <property name="hibernate.hbm2ddl.auto">update</property> <!-- 配置連接池的連接數 --> <property name="connection.pool_size">20</property> <!-- 注冊實體映射類 --> <mapping class="com.gdut.app.entity.News"/> </session-factory></hibernate-configuration>
在src下新建一個包com.gdut.app.entity，存放持久化類News,News類代碼如下
package com.gdut.app.entity;import javax.persistence.Entity;import javax.persistence.GeneratedValue;import javax.persistence.GenerationType;import javax.persistence.Id;import javax.persistence.Table;@Entity@Table(name="NEWS_INFO")public class News {@Id@GeneratedValue(strategy=GenerationType.IDENTITY)private Integer id;private String title;private String content;public News() {}public News(Integer id, String title, String content) { this.id = id; this.title = title; this.content = content;}public Integer getId() { return id;}public void setId(Integer id) { this.id = id;}public String getTitle() { return title;}public void setTitle(String title) { this.title = title;}public String getContent() { return content;}public void setContent(String content) { this.content = content;}@Overridepublic String toString() { return "News [id=" + id + ", @Test public void beanTest() {// final StandardServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder()// .configure("hibernate.cfg.xml").build();// // SessionFactory sf = new MetadataSources(serviceRegistry).buildMetadata().buildSessionFactory(); //兩種方式都可以獲取SessionFactory Configuration cfg = new Configuration().configure(); SessionFactory sf = cfg.buildSessionFactory(); Session sess =sf.openSession(); Transaction transaction = sess.beginTransaction(); News n = new News(); n.setContent("在廣工畢業"); n.setTitle("畢業季"); sess.save(n); transaction.commit(); sess.close(); }}經過測試成功
或者通過映射文件
在com.gdut.app.entity包下簡歷一個News.hbm.xml映射配置文件，修改genarator的class屬性為active
<?xml version="1.0"?><!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN""http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"><!-- Generated 2018-5-22 23:45:23 by Hibernate Tools 3.5.0.Final --><hibernate-mapping> <class name="com.gdut.app.entity.News" table="NEWS"> <id name="id" type="java.lang.Integer"> <column name="ID" /> <generator class="native"/> </id> <property name="title" type="java.lang.String"> <column name="TITLE" /> </property> <property name="content" type="java.lang.String"> <column name="CONTENT" /> </property> </class></hibernate-mapping>
在hibernate.cfg.xml中配置
<mapping resource="com/gdut/app/entity/News.hbm.xml"/>
測試驗證成功。
整個工程架構如圖：
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持VeVb武林網。
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