本文介紹了eclipse下搭建hibernate5.0環(huán)境的步驟，分享給大家，具體如下：
- hibernate引入的jar包：hibernate-release-5.0.12.final.zip
- 數(shù)據(jù)庫驅(qū)動：mysql-connector-java-5.1.46
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j(luò)boss 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(chuàng)建工程
1.創(chuàng)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(shù)據(jù)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(shù)據(jù)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(nèi)容如下
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<?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：
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<?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(shù)據(jù)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(jù)配置更新數(shù)據(jù)庫 --> <property name="hibernate.hbm2ddl.auto">update</property> <!-- 配置連接池的連接數(shù) --> <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;
}
@override
public string tostring() {
}
}
編寫測試類：
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package com.gdut.app.entity;import org.hibernate.session;import org.hibernate.sessionfactory;import org.hibernate.transaction;import org.hibernate.cfg.configuration;import org.junit.test;public class beantest { @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(yè)"); n.settitle("畢業(yè)季"); sess.save(n); transaction.commit(); sess.close(); }} |
經(jīng)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
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<?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
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<mapping resource="com/gdut/app/entity/news.hbm.xml"/> |
測試驗證成功。
整個工程架構(gòu)如圖：
以上就是本文的全部內(nèi)容，希望對大家的學習有所幫助，也希望大家多多支持服務(wù)器之家。
原文鏈接：http://www.cnblogs.com/yumiaoxia/p/9074904.html
