Hibernate —— 概述与 HelloWorld
一、Hibernate 概述
1.Hibernate 是一个持久化框架
(1)从狭义的角度来讲,“持久化” 仅仅指把内存中的对象永久的保存到硬盘中的数据库中。
(2)从广义的角度来讲,“持久化” 包括和数据库相关的各种操作。如:CRUD。
2.Hibernate 是一个 ORM 框架
ORM:对象关系映射。O 面向对象:类、对象、属性。R 面向关系:表、行(记录)、列(字段)。M 映射。
ORM 思想:关系数据库中的 行(记录)映射一个对象,程序员可以把对数据库的操作转化为对对象的操作。
在 Hibernate 中,存在 对象关系映射文件用来描述对象与表记录之间的映射关系。
3.Hibernate 配置文件:hibernate.cfg.xml ,配置数据库连接、Hibernate 本身的一些信息、对象关系映射。
4.Entity.hbm.xml 配置文件:对象关系映射文件。
5.Session 接口:Session 是应用程序与数据库之间交互操作的一个单线程对象,是 Hibernate 运作的中心。Session 有一个一级缓存,相当于 JDBC 中的 Connection。
6.SessionFactory 接口:根据配置生成 Session 的工厂。
7.Transaction :事务,可以通过 Session 来开启事务。
二、HelloWorld
(1)在 Intellij Idea 下新建 hibernate.cfg.xml 和根据表创建 实体和 Entity.hbm.xml 文件已经在前一篇文章中讲过了。
(2)生成的 hibernate.cfg.xml 文件。
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- 配置连接数据库的基本信息 -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/hibernate</property> <!-- 配置 Hibernate 的基本信息 -->
<property name="dialect">org.hibernate.dialect.MySQLInnoDBDialect</property>
<property name="show_sql">true</property>
<property name="format_sql">true</property>
<!-- 指定自动生成数据表的策略 -->
<property name="hbm2ddl.auto">update</property>
<mapping resource="com/nucsoft/hibernate/News.hbm.xml"/> </session-factory>
</hibernate-configuration>
(2)创建的 news 表。
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rsUoQ9gBBDGE5yzRPHhSSrR2yX0W9rooK2kVrB/ftgOEF/FJxzsi1TFX7K9JKrsEsR9gBCDGE4yTU4LihXYW9nG1aYOawhwh5AiCEMJ7kGxwXlKuztbMMKM4c1RNgDCDGE4STX4LigXIW9nW1YYeawhgh7ACGG/lWAEEIIIYQQQn8ARntOCIQQQgghhBDKEAwnOQiHBuUq7O1swwozhzVE2AMIMYHhJAfh0KBchb2dbVhh5rCGCHsAISYwnOQgHBqUq7C3sw0rzBzWEGEPIMQEhpMchEODchX2drZhhZnDGiLsAYSYwHCSg3BoUK7C3s42rDBzWEOEPYAQExhOchAODcpV2NvZhhVmDmuIsAcQYgLDSQ7CoUG5Cns727DCzGENEfYAQkxgOMlBrzk0AOyywW2rZaaGCy98Bl7LjM1j7BFl9hdDOQmnnWzDCjOHNUTYAwgxcRdOSEnX+OK22eo/vKDX1OVZCicAJfWaTx9Wvq29VxTAC5ezKL3XnBbz6z5bD619pWwmT8KpGN88dGqrOJn6rVCuwrf8bMMKM5e+hqyimo72Kv6/X/XtD4BXqeyoLWI0UaOnw+0IISbiwgkplFTIage2D+kfTMKJSOel6IhnsSVl9gDgCGr75w6vj8ydPAwn2ZFyaNKPy8sAt3764HxrVMq6eU7gNY1+XluyeD0X9EonmXDnNDcBp2Li0G2fKudgS6B04ntbIB9eCkaowJqCBwRBAKu4omVy1bnZ31TBYwHwWmf3z7+vT7XKm7vf2x3urV5mEfqNiK8wT6LU268oalfdomho6emf3Nj1htYn6gsA8kubB7do6tSpVbY0Kge1Sx7Pacg0XMEBIAiCVVxd16RQ6Ow++nJ9rKO+qami+A0VP83ClFUkV2mG2sRcJs8PeXyBqLS0uls/pW3iwxNv4opbhzQqeRGLyUujJ/qTw0k2FgMIZVbyYV1k/bwrfMkknAC3SjkyXPfwWxGAULV36cFwkjUph+bRcUlJqN40qoQP3SoY3D/ymZsK7sYRgMMrKintWPOEL+8nkIduIggCyN6VwMVKZ/Gzfj301sT3NkC5xhbwhK+thqpoPIaCltnNCQkAAF+xdHbsWajlAkEQAMVdm+Ejy4gQ55zHJFaY32qmg96Pkpu68Tt3j86DU3IOAKf601kwYG4oiFaYVK7TFLXVSt5VOL9h2X1xPtfAaCH+N3rozTEjyeQW8Bs0k7qkBJL+JswnryaD4ST9u/ALvGwx8OfLeKHQb5T5cPIoDCfZlqlpEYBUrgY2h1KfDQJQrnH+cBmb8u+NI0hmHPd2j6S/CYCvMJ/7bKMC7Ar0sKRwMrK5rN8IB6ltJZkYTgTDW6e/vk9W3e7Te9dr810EDFW59n6ccenDCZTq985/2rTipHBCEIRI5wteeEdKMZyknoEzm0yIF4UTAvPJa3mdd2F0CwuVYzIZToBX1dSp7tfOGTfXuoX3FqzALpL3qNS9NYKyPgwn2ZQ0NOnHJSVglVS3D2kWXEfha9vckLKzR9mhKE085R2EGstJeLnjGQkk/U3FA/s+ytZVhF2BHnQvnCwqaqf3zn/ap2s4ALfhhN+566PDi238uztLZvYvftl0kt/xW/9NHgkn4in7xdX2kOjenhNO9VwoGLIqcc9JqoVpxpMJ8dJwQhAEV9yG+STbmIeTp7wLP/s5n78Y+PNlo1Dot8tkOGEJFH36Kd1nl+8iNCZJXMgW1OsslMthnTealy2uvcA1hpPsSRqah8aFV6v55LryOzZXbC7z4ufJLw43dTQh5xIEARxp68ikdmLRcnLtWHmvNUxpdcPVvITx4tQtuS8ovTTVW+OLwglHvui+oMZSPSFCUffDSXMBv9V0HgzZuovvwknp2HGQDk1Uxh1wKBjZPo0crbTjtJNemnACwKmaPDo+cQ6UQlI44cmnt6jLvfeN8UexYziJeiiZ5Alq2kcmxoe7ewfVqo6W5na13jCsELAB2GR5Q69uytBbzgEAyCuSKfoNk2NKISuuvC8OJ0Q0n4xiPsmixO2IKxuz2l3WmdH+NqVqcMF9cLCiIAGAK+meWfH9PFrv4QMA8CoG5tepn25jIwcg/bswFLXP2in75ufBAd3Emte1v6wUPD6zvWAxQBAEcGSD6/79vZWR3h7VjN3ltQ1KOQRB8GqHRw3vja6rgHOiTm1et2x9MvkCdOz9HThVA+Yj++6KbkRvMHlc7p1+KQeArJ92+y9om2Xzw1e37+zEarPOz1tdJ9RsHfehR6X/DZ+yXEF/nSyccyKZcZwn9D0Ar2EhdOxdro9+xsYqH3VcYTjJntTnnKQYF36rOUxR+yNVHIIgACQjjh8H8/Wc209JC5RfApeWB/aT8to2PWfe0dKMhROQvneFzz7I8Zpd6EGpwgmwpBPWs1+Oucb8m3BSPhuiwkG9OK7biwfWTyK+nf4inHbSuh9OqND+3EfjzGfz8p7f5dmfai0hortKPp1R5/5V89b6wYXXa5/tlyUd4YnhhCAIYBU1DuvVtfz7dwPIk3QbpgwD0ZAAwJcPj+vaBCwAAG5VvyEaTgiCAODJRyb0mQsnBEHwa9X64cYiFm4OWZHQA1zFfOCne6E5uoFA8eA6FY6t4KGkx0JHwwlBEADiYedVNJzEHpvqXRhA2L154dlUF8ceVdyxfu6xDD/xoOhnLQYAuDUf/D6vKXpyKQg1lrNfrtlq1s0HFrXGs2P/wdbaeAUXWKLeWfOySsoB4FSMHx4dzNdwoncT9VkvfXujQoD8RpPngpqUsaHUYDujTZ0kFLQZA5eWYVGaRzFcrqC/zquEE177IvXL9b7mppvxnJPsek44OfftDRc/MC7pt/b8hmX3RVAvyVg4YdV+cV+ExiuwK9CDUoYTAL5i+Tx4st8naY2GE/E4RdGJ3V48tHEa8W3EFgHoISn2nBwvt8nra+RyqZAbd9PtnhNO1WwgQG23kcmFxXASlSdo6Neom0V5SXcDyJN068fVsv/EZuD/yNTj+m5JXvbDSZ6oWa3pbxQk/0ooUxK3Iza/ol5KsoErruvW6ed2HWeX66poyH9ROJFM2s7CS8q7xMtr3fSc+bSp3o7ve9ZiAArajIG49RtL3DY201N5s1MFOLXGc+rE3p/4MSVw6me9184Z2W3Hlur9wRNbVzHkN5rcp55BEUCpfu/0bK6BCwUtxsCP3dGyNI9iuFxBf51XCScivfXsx85grGkwnGTb64QTEOmspxfxh/UnvNbzw0mRyu4N2XuKsSvQg1KGE4IgWGK95fSn66vuw+aEBKBY7TymE5bFINJZL34dzNWxcNpJK/05J3E33R3WxZJM7p392FQnXycHw8mtaD5RJOaT3xVOMJm8gqQeyJdpjd98Npt1flqrbNGsUjSTcMLv2PGGqfhPBkEy67ygU54Cet/zwolIF79+S36q6J4T55gocYqA4qH1k59Htu2vKxvRf4sWv/vI2itIG04efhSGk7fmVcKJUGM5/bE9hOHklbxSOGFVG9xXzo9yzv2Fy0uu1sVrWDr37etF2BXoYQ+FEwBe49ez4DlltU5JAFgVM/aLq/g3VI78qzt8aUrVkyjeC8IJQNmA7cexY0KceIwQhpN4eYLGfo26ufQuEvyWcILJ5HUkbEeCAVPw2vGlPZZAinpNzMJJQfOq5yLxnLrKOdfFubGZ95Tf7XnhRKjZPr3aHS1L/VQPhZMilSn087tBev8h6cLJw4/CcPLWJIcTUdf6If3f3bHaTIYTTv2M9/r26EBgVY+58UsYsyhj4YSrmA9cWoZFBEEAt7pX0/Yu/q0R2GKdx3e0WHfvshgvCSe89q8BelONMwtK56FwQhAElOl2TiMh70cJALCkw/YfR5uqd7HeZkvHff7AZiueJfmYF4QTgiCKVN98YWqqNuGEMQwnSdiCxoG4fJI+nFSoDAZVJTf2pils004xDyeYTF5NfA8Uqey+uCOWb8KJMJ/HASju3AofbfXHZipO43vvz4RwkupdGIr6TNTl5sDdvspitcNHWZ94rcvnhROOfOrwp8d0dykRYFX0zY3XcOPOObkfTkA66rz2bva9u3uUVDncWgRp95w8/CiGyxX014n7hnhJz9SKdctJuY9PDw7d6+tmTXPpi8LJrPMiNC5NXMWO7h8F7MOVHABuxYjl+8nPY/tHRQWJh1hkwwPh5P648FtXL3x7I7dbe9/epWe16/agfIAytf3SvdzBB3aZetU03Zh0wivw2o3ei3V18mcq+U0rHvp6ezjFZy0pbwJgS3QHHnfsK/MQekji0rlidGNRcXv5GuDVG0OBm5V0fu373YD/QzOfIAiWaGDJGzINiHHCeVRyOFmlg95P0lThpGb+LBhcbYzuueJ1LVI/PcvKxKt1rXguLj5hOInDFjQOaAaj558A5Em6x8bV1bfhpFo9PtYt4QAA/Ptd4+iEoa/mHRvyimTKQc345Hh/fRk/bscLv1E7pW2+d6rPQzdhMnlN8T2Q37DoDP/Y1pSzAIAjVs7aXOeXG0O908sa4f+wpBO+Y8qmruBCQbVqweU4+enbnWwSx/aBpHwXBuBUGFxut0kpZBMEAbzWDwdnO4bq+0cxpPSsxQAAWzRoPzrxzSqKCYIAllAxa1ubrM+/OSG+buHs2GW4f8jDu44N10nQ2FPGAgAoaZzeXRmT5wPkN5tvwsnYTThpNQZ+WEfK0jyK+XIF/V2S95w8XYpLCYv7p5c2Fjfc373B3a2txWVjtyT2QRoAr1qzvuPwWGz7ps+jKuO31eUFTWf5E7cl9CzJF7JMNS4AHLFqcdVJudz7n0dq8oFbNWpaPwg5Xd8+qO7GJV+mX9wPfHcdbpsMslTJgd9m/n643XVzEUPgKXRft9b2gy5fyOV2mUyL/VXcR29iiTVrXu9s05N2SaO3LL63B41Wy8HR+vJM/W0+EQ0aTSO3b5O8uomvFtuyeWtlx/pxoAJnm6eIr3CtzrzmpFwej2l+WMqJX8pwxKovpv2g6/Bo9fOwlAMAvLrZA4fHvTzTxgfgN89+Xtlc3PE4vNTeztbiilnf/IYOqEv/HRdsQX13h4z3v//Hr2zrG9HqRgc6aorZwC6u7ejX6LQj/W2VfBYA5Anqe0d0eq1mdKinUSrr7Fd1tsjFBf8GyBPIlV1d3b1DGq1mSNXT3aWsE8Yix0M3AfCqOrsbMJm8lqRLCZcPmrYcnq0d6+rO7pymVTnv2LNbZzvLWABQUK9ZP3L5Qw63e3miR7VkNy19Hm4RsdK+CwPwazRr69ZvK+at5S3r51F5wRPmt5ctBgC4FUOmLZd/77vbYnetzvWKojFLZTSattb2gy63y2TeMH7sL0uYJdiiTuOaw2/bd1vsLtPHbgELgFOhWnI7vL7V6XbFjM3uDVoWhxsGV3c91Letj/U8SP2oDC1X0F8kk+EE/SFec2gAuDKD/duOoYLzwrkAuPVjVp9pFNeO6HE47WQbVpg5rCHCHkCICQwnOeiVhwaAVzM8pSxlv+zhHKlaO/DU/dHojcNpJ9uwwsxhDRH2AEJMYDjJQTg0KFdhb2cbVpg5rCHCHkCICQwnOQiHBuUq7O1swwozhzVE2AMIMYHhJAfh0KBchb2dbVhh5rCGCHsAISb+VcDA7/7lUWo4NChXYW9nG1aYOawhwh5AiAmme06YZBuEEEIIIYQQuoWHdeUgHBqUq7C3sw0rzBzWEGEPIMQEhpMchEODchX2drZhhZnDGiLsAYSYwHCSg3BoUK7C3s42rDBzWEOEPYAQExhOchAODcpV2NvZhhVmDmuIsAcQYgLDSQ7CoUG5Cns727DCzGENEfYAQkxgOMlBODQoV2FvZxtWmDmsIcIeQIgJDCc5CIcG5Srs7WzDCjOHNUTYAwgxgeEkB+Xq0ACwywa3rZaZGi5k/sl5LTM2j7FHlPFnRhmUq73958AKM4c1RNgDCDFxF07Ke1d2DxzGsT5Fa59m2es78X/qkmA4+Rv9lqEB4Ig7J6eXbNvLqiLIfHggCCK/7rP10NpXys7Gk8UX4mkAACAASURBVBMEwakY3zx0aqs4WXp+xBxOO9mGFWYufQ1ZRTUd7VX8f2dlknwIAK9S2VFblK3JEyXB7QghJmLhhBQqPx5dOWYbY/8taZ46/BlwTMlIMoPhRKTzUnTEs9hS8LTFK/CkNQ2KRvWmJxwak7zqVP5X+13TIk+i1Nt/+PaGi7MQToBbP31wvjUqZd08+bvWL9sO+4dhpaymbeDLoffEO9PEi97E77S4Q2FP4OLm39m3pe53AOlvAuBUTBy67VPlHGy2P1R8b7+r05sCEcq72CrlEwTBKpL3rZ77HF86qvj5pa06+xVF7apbFPVNiqZu/ZztIuBbruMCAEcybLHuLQ+2yitqO4a+enz0L9es7Pf9TX8WXFQxl6aGrCK5SjPUJuYyeX7I4wtEpaXV3fopbRMfnngTV9w6pFHJi1hMXho9EW5HCDFxE06qdNtnkYBjpraELCwsJMnyvu1LKmBuFT47nAjVm0aVMOVNwK1SjgzXFaf48CbdoyQzjnMMJ8/wu6ZFAH6r+TxL4UQwuH/kMzcVxJ4ZOHVTnh92Q3nsv6wqnfvnsV0nBCAIolht3ZlIvdxMcxNBEED2rgQuVjqLM/3ro8yI720AttTgC5w6+4TRbCnsNu9PyDlErBXpoPejBG4bplprdc80cKFYvXbsH69i3zwJX7FEuVbaednZ3ffXwUUVcw/VMCPJ5BbwGzSTuqQEkv4mzCevBrcjhJi4CScldUMrrp2V0eiuEpKsG3NeB5wzNc/ccwJAKlcDm0PPO3A//aMwnDxX7oUTgHKN84fL2JR/u9YsHlw/jRzb9WWs6MKUVK7T1PFiDQcIghCN2De1kpRPleam6J+gMJ/7bKMCXKr+kZJ6G0p1ltOr3VExQRBQqjHtTEpj/ZAcTgiCYBXLJEVsTt3SAfW9V3D3cxB2aYfrnrg7N+fhooq5lDXMbDIhXhROCMwnrwW3I4SYSH1CvFCx8P38cktT8/RzToBVUt0+pFlwHYWvbXNDys4eZYei9ObEZeBVNXWq+7Vzxs21biE88VGx+2A4eabfH05YwjqVXjumUUgy9BmhUGM5CS93kHc/YYm7v+5vflUJYkdkiYf3rwP7ehEAQRBleufqA1k3zU1RxQP7PsrWVYT99idKnnagpNtyeeycFANborWuDIlvfp4QTkA0ODfdEt03AmWGvbMfu5NNuKskJVxUMXe/hhlPJsRLwwlBEFxxG+aTbMPtCCEmUoQTUtg65Qi7NjSykgd3m6QIJxxp68ikdmLRcnLtWHmvNUxpdcPVvNjkyBIo+vRTus8u30VCzEj/qNh9UoUT4FQNmI/suyu6Eb3B5HG5d/qleB5zTPzQ8OS6OfslFQ4ah2sKAPKrdIuHPzzWhW4pF4ArG7PaXdaZ0f42pWpwwX1wsKIggSAIXu3wqOG90XUVcE7Uqc3rlq1PJl+Aplc6SYIggCMbXPfv762M9PaoZuwur21QensszbnPub3m8G6vmubXPEcn/tkmHkEQL36tKE7dkvuC0ksfXE1yZB+/ndHr/SKCIADYVdMu00fTlstn94Q8J+Hv6/oKLqS/6e6p5IvuC2rs4ddCv9H9t3x+x/bRmX+sSq7f2egqvvk0JC6cAHArNPZv5h5+LMeSTfNHPvqXz22d7K3Kx4iSCBdVzCXV8KFkkieoaR+ZGB/u7h1UqzpamtvVesOwQsAGYJPlDb26KUNvOQcAIK9Ipug3TI4phay4dn1xOCGi+WQU80kW4XaEEBPJ4YQsqRtaP7av6WrTJpMHD+sqUH4JXFqeeYDWcx8FwKkYPzw6mI8ewwMg6rNe+vZGhbjOIAji3rTIkX9xnVJTNRyCIIBTN7Fn7RcBQRDAVcwHfroXmqPrMygeXKfCt5EAgFNrPDv2H2ytjVdwgSXqnTUvq6QcAG7NB7/Pa4qe/gFCjeXsl2u2mgUAwG81hynKoaniEgQBINW4rtzGJg7Ay17r9k/gtW16zryjpanHFzg1evu5w9wvjB3Sw2v8GvI4FpqLgCAIjmxm9/Tn/lxjPkCam+6eTfreFT77IMes+ye6P+1AQev88bVzxby+0MmHhHBCnXqWVzYWzbs73ivPek/crezilpkl5wVFR/yH9gmliIVTxw1cVDGXcGYUq6hxWK+u5d+/G0CepNswZRiIhgQAvnx4XNcmYAEAcKv6DdFwQhAEAE8+MqHPXDghCIJfq9YPNxaxsPOzArcjhJhICCdkSc2A+ci+qq15LJn85nDCqZ/1XjtnZLczdaneHzyx3X5u+sbd26lVN3145fhQxwHgyOe3zANFsTc8Nr+iXkqygSuu69bp53YdZ5frqpLYo4BTazynTuz9iZEACtqMgV+u9zXR4gNL3DY201MZTSMJ55wACPv2Lj3mTh7Ay17rVn7DsvsiqE91aB+wxD0mn21lsDTuXTa/VF5RfHvGc3HHxiUVWK7jQvqboli1X9wXofEK7KU/UYpwApyaj1QwfDbfzIv7YcJhXRz5/NbyXTi5uQ+7WDG1ePCDCp+bBsSYT6JwUcVcUg3zBA39GnWzKC/pbgB5km79uFr2n9iE+R+ZelzfLcnLfjjJEzWrNf2NguRfCWUKbkcIMXEXTkhS2rHgsW8abi7YVVrf11f7zKt1vVI4KR5aP/l5ZNv+urIR/bdo8buPrPEnub5l947LZ1fNBI+PFmo43LoP+8a4S1Hly7TGbz6bzTo/rVW2aFYpOjEwnB07x0RJSzqRznr2Y2cwxWDdDyeqm3DystdKeNHTi8W25E8fgSXqWPLsLQ+I0n7+J5kOUaf7qlTtcf+mIpXdG7L3YND9I6Wcdvjt296k40WTzjkpkCtbpZxU3QWcikELHQyYGwtwxAkCF1WZcL+G0XyiSMwnvyucYDJ5BbgdIcTEzdW6SEGtzmbfm2sujaURUqJe/L7WJf4jw0mRyhT6+d0gfelfneNSnI5Z9fH7aeh9U+uMZUVxc0oPCAZMwWvHl/bYsfhFvaanhBOhZvv0ane07P7rpgknL3utu2dmVRvcV86P8vj1JQC/4ePBnnnk5oJdXGmbsowDwKke3vRav94d5FPxPhQMWTuK0t1085y8hqVz382J9ehP87JwEvshixQVc3iNs+/7Ey7Xlt+w4j71jjyw1+6twUUVcylrmCdo7Neom0vvIsFvCSeYTF4HbkcIMRELJyXyKUswtLVimv+6Mv91ZX5xzeQMH7vnap97KWGuYj5waRkWEQQB3OpeTdu7+Mn0oXDyzEcBSEed197Nvtu7AUuqHG7N0heT/3VSHPrCko25fxxsbq3Pt95eMrVIZffFHb90ExiE+bzo2e0PhBOOfOrwp8d0970QwKromxuv4UKacPKy17p7UWCLdR7f0eLt8VcA7LLB3b3dqaq7K8J1fLYtNxUAiHS755HjvZG7X8P6I+CaFEO6m26epP1rgN5UP+9a2OjVMAknosGdVV0FR75gdxlr4g7k43dYPMG7gPrG4aKKuYdqyBY0DsTlk/ThpEJlMKgqubGjZ4Vt2inm4QSTyavB7QghJmLhRNg6v+s9cx/H/zuxLfVJnv09J2Vq+6V7uYMP7DL1qmk68VRjyazzIjR+7zpIL3jUu44N10nQ2FPGAgAoaZzeXRmT44V3olIdl8+WjvuCF6EPDXdXjMlvWHSGf2xrylkAwBErZ22u88uNod7pZY0IAIBTt3B27DIkhxNgiwbtRye+WUUxQRDAEipmbWuT9fnRE+JXL3xxS/++vUvPahcf4GWvlfC6vHaj92JdHdtjwyrTbQWota9fZz99mf30ZXZ+efH7uf9gqhQAWBK15Xx/PnbyPa9pwX56YeoVEgSR5qbonybRHXjcC7VcbKQ/VOpw0mHxJk4RAPzWVTro/SS9Ob3qXfMnS+B4soYNwtGd02vH8rA0egE3jmzUemaba8bvOYnCRRVzaWrIFjQOaAaj558A5Em6x8bV1bfhpFo9PtYt4QAA/Ptd4+iEoa/mHRvyimTKQc345Hh/fRk/bscLv1E7pW0mU4aTFDdhMnlNuB0hxETq7zl5ioe2vXyZfnE/8N11uG0yyG4WeSxx//TSxuKG+7s3uLu1tbhs7JZwHn1UgdzwcTnuUSvLmobYWQcAbFGncc3ht+27LXaX6WO3AK86ciN1bhRrTZaZKk78Ao5bPmjacni2dqyrO7tzmlblvGPPbp3pqChXfTaattb2gy63y2TeMH7sL0t8YMWQacvl3/vutthdq3O9omjmUC2uOimXe//zSE0+cKtGTesHIafr2wdVed7/5L/steLx28zfD7e7BEAQBKdmZvvw5MAX/y9kNSpj32XBrVZ9sqztWNcs+5Z9p3G0+u7bGx++iSXWrHm90Wsfoz/T/fOphJ3zi7tHTm9wd9McnR8AuBVDy2tOyuXxrJo3v65sLm469jwhp22uhgvAqdFu2ZfM1g3r/obl24bVaXrfLcTZ4wYuqphLX0O2oL67Q8b73//jV7b1jWh1owMdNcVsYBfXdvRrdNqR/rZKPgsA8gT1vSM6vVYzOtTTKJV19qs6W+Tign8D5Ankyq6u7t4hjVYzpOrp7lLWCWOR46GbAHhVnd0NmExeC25HCDGR+XCCfrtcHRoArsxg/7ZjqHggvTB6cm79mNVnGq1Iedo0+kPkam//ObDCzGENEfYAQkxgOMlBOTw0ALya4SllKTvjz8yRqrUD1ZhM/nA53Nt/CKwwc1hDhD2AEBMYTnIQDg3KVdjb2YYVZg5riLAHEGICw0kOwqFBuQp7O9uwwsxhDRH2AEJMYDjJQTg0KFdhb2cbVpg5rCHCHkCIiX8VMPC7f3mUGg4NylXY29mGFWYOa4iwBxBigumeEybZBiGEEEIIIYRu4WFdOQiHBuUq7O1swwozhzVE2AMIMYHhJAfh0KBchb2dbVhh5rCGCHsAISYwnOQgHBqUq7C3sw0rzBzWEGEPIMQEhpMchEODchX2drZhhZnDGiLsAYSYwHCSg3BoUK7C3s42rDBzWEOEPYAQExhOchAODcpV2NvZhhVmDmuIsAcQYgLDSQ7CoUG5Cns727DCzGENEfYAQkxgOMlBuTo0AOyywW2rZaaGCy98Bl7LjM1j7BFl9hdDryZXe/vPgRVmDmuIsAcQYiIWTkhSIBu12Bzbhr725u6Jr+5L7/dPilLyd4UTAI64c3J6yba9rCqCF65E36zfMi2+wpDl1322Hlr7StlMnoRTMb556NRWcTL1W6HXhG/52YYVZi59DVlFNR3tVfx/v+r7GgCvUtlRW8Ro8kRPh9sRQkzchJMSxaz3l3d7SEqShYWFJYqvrvD1rr7mN+454UmUevsP395wMYaTZ/pd02JWhwy49dMH51ujUtbNk/M7Le5Q2BO4uPl39m2p+x0AQRDAqdZYL7xO02CvZtZ2drCjl3JijwLgVEwcuu1T5Rzsq79PfG+/q9ObAhHKu9gq5RMEwSqS962e+xxfOqr4+aWtOvsVRe2qWxT1TYqmbv2c7SLgW67jAgBHMmyx7i0PtsorajuGvnp89C/XrOz3/U1/FlxUMZemhqwiuUoz1CbmMnl+yOMLRKWl1d36KW0TH554E1fcOqRRyYtYTF4aPRFuRwgxcbvnpE5rCx/aJ2QkWVhYSFZotk4i7gVlCfngzpPMbntC9aZRJYz/CQC/1XyO4eQFfte0mNUhEwzuH/nMTQV3z1ystu5MpFhTArAles/x2aGmgk0QBJRqtk9+WDR3qQbI3pXAxUpnccZ/SZRt8b0NwJYafIFTZ58QCIIAEHab9yfkHCLWinTQ+1FyO+icaq3VPdPAhWL12rF/vIp98yR8xRLlWmnn4TxDEAQuqjLhoRpmJJncAn6DZlKXlEDS34T55NXgdoQQE6nPOSlpXnBcXG4MV77OnhMAUrka2BwSJf4Qw8kL5V44ASjXOH+4jE35cc8sGrFvaiUp7sypn/H+PLZrhNG9KFA2+P2a8nysYN3uPOErzOc+26gAW+tvk9TbUKqznF7tjooJgoBSjWlnUsqKDnpyOCEIglUskxSxOXVLB9T3XsHdz0HYpR2uK8BmIAgCF1WZkLKGmU0mxIvCCYH55LXgdoQQE8nhhCSFsq6pJde5Y8tQJ8z6OSfAKqluH9IsuI7C17a5IWVnj7JDUcq9XV6c+/aGi1nCOpVeO6ZRSDI2ree23x9OMj1kINRYTsLLHWT8D8v0ztWhFKe2Q9mk/SLiel/NioUTTu3nc+rcPSiK2+sysO+jbF1FuB79yySHEyjptlweOyfFwJZorStD4pufJ4QTEA3OTbdE941AmWHv7MfuZBPuKkkJF1XM3a9hxpMJ8dJwQhAEV9yG+STbcDtCiImEcEKS0va5b1Z3yH3kNmqahA8f03U/nABwZWNWu8s6M9rfplQNLrgPDlYUJABwJd0zK76fR+s9fAAAXsXA/Dr1021s5AAAR9o6MqmdWLScXDtW3msNU1rdcDUvLpw4t9cc3u1V0/ya5+jEP9vEi71cUfusnbJvfh4c0E2seV37y0oBEATBqx0eNbw3uq4Czok6tXndsvXJ5AvQ9Eonef+Pz1XxQ8OT6+bsl1Q4aByuKQDIr9ItHv7wWBe6pdyHhox4rIzAkQ2u+/f3VkZ6e1QzdpfXNii9PZYm9ZC9+LWiOHVL7gtKL437tBvYVdMu00fTlstn94Q8J+Hv6/oKLhAEUaBY89DXuyNlt3cuGzum6LOZmruTQTnyRfcFNSbF5elf5v5bPr9j++jMP1Yl1+9sdBXf7Ry7DScA3AqN/Zu5hx8Lq2TT/JGP/uVzWyd7q/IxoiTCRRVzSTV8KJnkCWraRybGh7t7B9WqjpbmdrXeMKwQsAHYZHlDr27K0FvOAQDIK5Ip+g2TY0ohK65dXxxOiGg+GcV8kkW4HSHEROrDusTKL/aT8Kau/unnnABXMR/46V5ojr7ZQ/HgOhWOrWWhpMdCR8MJQRAA4mHnVTScxB5boPwSuLSkOKwrTFEOTRWXIAgAqcZ15TY2cQAAhN2bF55NdXHsCYs71s89lmHB7SflxrNj/8HW2ngFF1ii3lnzskr6hq7OlDQ0HPkX1yk1VcMhCAI4dRN71n4REGmHjHi4jADcmg9+n9cUPf0DhBrL2S/XbDULIN2Qvei1bv8EXtum58w7WhofTniNX0Mex0JzERAEwZHN7J7+3J9rzAfgd1p99NWW+u4UJpHmiKLPPzffLQ5A+t4VPvsgf0NdkRvuv+VDQev88bVzxby+0MmHhHBCnXqWVzYWzbs73ivPzfxDEAQAu7hlZsl5QdER/6F9QiliYUS5gYsq5hLOjGIVNQ7r1bX8+3cDyJN0G6YMA9GQAMCXD4/r2gQsAABuVb8hGk4IggDgyUcm9JkLJwRB8GvV+uHGIhZ2flbgdoQQE6nDCUlWDlovKf9K68NHdt3bc8LmV9RLSTZwxXXdOv3cruPscl1VQjAKJ3cnMAAI+/YuPeZOHgBIJm1n4SXl3XTPa930nPm0kttwck6d2PtL3+i0mzw0nLrpwyvHhzoOAEc+v2UeKIqV9MEhIx4uIxS0GQO/XO9rYgdNscRtYzM9ldE08vCQvei1buU3LLsvgnpJwq35pfKK4tvTmos7Ni6pwHIdF3jKrSP6envwrp1Kdb4gff6h7i6KsGq/uC9C4xVvtEP+XinCCXBqPlLB8Nl8My/uhwmHdXHk81vLd+Hk5j7sYsXU4sEPKnxuGhBjPonCRRVzSTXMEzT0a9TNorykuwHkSbr142rZf2IT5n9k6nF9tyQv++EkT9Ss1vQ3CpJ/JZQpuB0hxMTt1boqO99vftY1Rw/lIsnS9pUwdeYcrnrG1bryZVrjN5/NZp2f1ipbNKsUndlworpZ6fI7drxhKn6pCpJZ5wUdPSch9jG8c0z0Vlcb93Nj1Uzw+GihhsOt+7BvjLtK1UNDRjxcRhDprGc/dgZTnezx8JC97LUSXvT0YrEtxaePtyTTIep0XyUAluyzi/5pH7s7V75iJkRd+DXiuycvUtm9IXtP8RvtkL9Xyrd8fvu29yI0Fj8hJJ1zUiBXtko5qboLOBWDFjoYMDcWYDMQBC6qMuF+DaP5RJGYT35XOMFk8gpwO0KIiZtwUj1pPY9Qhx9rY+GkesR29bw9J4IBU/Da8aU9lkCKek1ZCycFzauei9BEZdw0XTnnujg3NkdPb8Bwcu90zKqP309D75taZywrCt5N2R8eMiJNOBFqtk+vdkfLiHvSDNnLXuvumVnVBveV86P8rmc41cObXuvXuyN5Kt6HgiFrRxFAUZ/5JHJ0E4oAijs3L6nA2u1liAF4DUvnvn39m+2Qv9fLwknshyxSVMzhNc6+70+4yFt+w4r71DvyVne0JsFFFXMpa5gnaOzXqJtL7yLBbwknmExeB25HCDFxE06ELVMHV94dTSVJFhYWijuW7KfhDW3d0885KVLZfXHHydysPoX5PA5AcedW+Gir/+YL8hrfe38mhBOuYj5waRkWEQQB3OpeTdu72AkMD6x0i/pM1OXmwN1JBcVqh4+yRi++hOEkxaEvLNmY+8fB5tb6fOvtJVPTDBmRJpxw5FOHPz2mu++FAFZF39x4DTfdkL3ste5eFNhincd3tFjHvXkGkW73PHK8N3L3WtYfAdekGACguHODDgZMDdGzYgpaPgd+uZeUt3848Nq/BuhNdYqdP+gPxySciAZ3VnUVHPmC3WWs4d79nN9h8QStHXjpNoIgcFGVCQ/VkC1oHIjLJ+nDSYXKYFBVcmNHzwrbtFPMwwkmk1eD2xFCTNydc0JW9E5tuHZtjq09t9XheO7VuvIbFp3hH9uachYAcMTKWZvr/HJjqHd6WSP8H5Z0wndM2dQVXCioVi24HCc/fbuTTeKbS29Bmdp+6V7u4AO7TL1qmm7Mj4aT1Qtf3Oqzb+/Ss9rFBwDgVBhcbrdJKWQTBAG81g8HZzuG6psPmTh1C2fHLgOGk1sAbOm4L3gR+tBwd1J4miETATxURgC2aNB+dOKbVRQTBAEsoWLWtjZZn37IXvZaCa/Lazd6L9bVsT02wJKoLef787Ez7HlNC/bTC1NvLK9yKie2Ty53x2s4wCnXubxBe3/Z7dkpbInuwONeqOW+0fb4q6UOJx0W70VoXJoYTlbpoPeT9Ob0qnfNnyyB48kaNghHd06vHcvD0uglyzmyUeuZba4Zv+ckChdVzKWpIVvQOKAZjJ5/ApAn6R4bV1ffhpNq9fhYt4QDAPDvd42jE4a+mndsyCuSKQc145Pj/fVl/LgdL/xG7ZS2mUwZTlLchMnkNeF2hBATqU+If4r7lxIuHzRtOTxbO9bVnd05Taty3rFnt852lrEAoKBes37k8occbvfyRI9qyW5a+jzccneRnHyZfnE/8N11uG0yyLgAwBGrFledlMu9/3mkJh+4VaOm9YOQ0/Xtgyp6dUV+jWZt3fptxby1vGX9PCovgOijjEbT1tp+0OV2mcwbxo/9ZZw3t+ZIOS2CWGuyzFRx4hdwqYdspqOiXPU5TRkBuBVDpi2Xf++722J3rc71iliPDFne/+S/7LXi8dvM3w+3u26+Pg+41apPlrUd65pl37LvNI5Wx18Wltcwtbzv2/vusdm3RmvvTpVmiTVrXu/tNanR3+X++VTCzvnF3SOnN7i7adY08IlYfy6vOSmXx7Nq3vy6srm46djzhJy2uRouAKdGu2VfMls3rPsblm8bVqfpfbcQr1l0AxdVzKWvIVtQ390h4/3v//Er2/pGtLrRgY6aYjawi2s7+jU67Uh/WyWfBQB5gvreEZ1eqxkd6mmUyjr7VZ0tcnHBvwHyBHJlV1d375BGqxlS9XR3KeuEscjx0E0AvKrO7gZMJq8FtyOEmMhYOEF/jlwdGgCuzGD/tmOoeGngBG79mNVnGq1IeW40+vPlam//ObDCzGENEfYAQkxgOMlBOTw0ALya4SllKfvxu6bCkaq1A9WYTP5eOdzbfwisMHNYQ4Q9gBATGE5yEA4NylXY29mGFWYOa4iwBxBiAsNJDsKhQbkKezvbsMLMYQ0R9gBCTGA4yUE4NChXYW9nG1aYOawhwh5AiIl/FTDwu395lBoODcpV2NvZhhVmDmuIsAcQYoLpnhMm2QYhhBBCCCGEbuFhXTkIhwblKuztbMMKM4c1RNgDCDGB4SQH4dCgXIW9nW1YYeawhgh7ACEmMJzkIBwalKuwt7MNK8wc1hBhDyDEBIaTHIRDg3IV9na2YYWZwxoi7AGEmMBwkoNwaFCuwt7ONqwwc1hDhD2AEBMYTnIQDg3KVdjb2YYVZg5riLAHEGICw0kOwqFBuQp7O9uwwsxhDRH2AEJMYDjJQTg0KFdhb2cbVpg5rCHCHkCIiRThhKwe2zqJ+LaHpST5snACUFKv+fRh5dvae0UBwGv+PYh4eFrEcUF/O3zLzzasMHPpa8gqqulor+L/+1VnYABepbKjtoj9mi/6luF2hBATyeGEJGUD68fuc4bhhCOo7Z87vD4yd/JwEfzqHg4nOC7o7xbf2+/q9KZAhPIutkr5BEGwiuR9q+c+x5eOKn5+aavOfkVRu+oWRX2ToqlbP2e7CPiW67gAwJEMW6x7y4Ot8orajqGvHh/9yzUr+31/058FF1XMpakhq0iu0gy1iblMnh/y+AJRaWl1t35K28SHJ97EFbcOaVTyIhaTl0ZPhNsRQkwkhxNp34Z1e+6T7xeTcEIQBIBQtXfpefIiWKjeNKqEGfqj3rq0uRHHBf3F4nsbgC01+AKnzj4hEAQBIOw270/IOQRBAPBbzXTQ+1Fy0+fAqdZa3TMNXChWrx37x6vYN0/CVyxRrpV2jOtRuKhi7qEaZiSZ3AJ+g2ZSl5RA0t+E+eTV4HaEEBMJ4YSU9H3+/k3X0DztfdVwAkAqVwObQ6LM/V1vWqbCCY4L+tMk9TaU6iynV7ujYoIgoFRj2pmUsqJBJTmcEATBKpZJiticuqUD6nuv4O7nPp31qwAAB4hJREFUIOzSDtfhgY5RuKhiLmUNM5tMiBeFEwLzyWvB7QghJu7CCUlKlEb31nSLkGx8cTgBYBfJe1Tq3hpBWd8TFsHAKqluH9IsuI7C17a5IWVnj7JDUcrFVQIj94cGxwXlhuRwAiXdlstj56QY2BKtdWVIfPPzhHACosG56ZZoz0OZYe/sx+5kE+4qSQkXVczdr2HGkwnx0nBCEARX3Ib5JNtwO0KIibtwImozbls/KYQk+dJwAgX1OgvlcljnjeZli2svcB1dBANwZWNWu8s6M9rfplQNLrgPDlYUJBAEARxp68ikdmLRcnLtWHmvNUxpdcPVvNsjMaoGzEf23RXdiN5g8rjcO/1SzmtX6C+UvIDDcUG54v60w+/YPjrzj1XJ9TsbXcU3LRoXTgC4FRr7N3MPPxpOgGyaP/LRv3xu62RvVT5GlES4qGIuqYYPJZM8QU37yMT4cHfvoFrV0dLcrtYbhhUCNgCbLG/o1U0Zess5AAB5RTJFv2FyTClkxbXri8MJEc0no5hPsgi3I4SYiIUTUtgyYXW+V5YWFha+LJwA8BoWQsfe5foCIAgCWOWjjqvYIpirmA/8dC80R9cBUDy4ToVXOsm7xxYovwQuLYmHDwFwKsYPjw7mazjRJYWoz3rp2xsV4mLiMYnH5eO4oNyR6jOR1vnja+eKeX2hkw8J4YQ69SyvbCyad3e8V571nrhb2cUtM0vOC4qO+A/tE0oRC7v3Bi6qmEuYgVlFjcN6dS3//t0A8iTdhinDQDQkAPDlw+O6NgELAIBb1W+IhhOCIAB48pEJfebCCUEQ/Fq1frixiIWdnxW4HSHERCycyHROt9v2ZdH0edH0eXHTEooEPHtfFlcmemRPDSe89kXql+t9DSs2md6d2wDA5lfUS0k2cMV13Tr93K7j7HJdVXL32JSLYE79rPfaOSO7nY5L9f7gie32w1H0kIS3RhwXlENSHbLIqflIBcNn8828uB8mHNbFkc9vLd+Fk5v7sIsVU4sHP6jwuWlAjPkkChdVzCXVME/Q0K9RN4vyku4GkCfp1o+rZf+JTc7/kanH9d2SvOyHkzxRs1rT3yhI/pVQpuB2hBATsXBSIqmrb2y++dc75//ls44rGptqJIKnhhOR3nr2Y2cwtpBNOvE6X6Y1fvPZbNb5aa2yRbNK0Y8vgouH1k9+Htm2v65sRP8tWvzuI2v8mawopYRwguOCckjKt3x++7b3IjQmiVu3JZ1zUiBXtko5qeIHcCoGLXQwYG4swAYmCFxUZcL9GkbziSIxn/yucILJ5BXgdoQQE6m+hPFlh3UJNZbTH9tDKRbBIBgwBa8dX9pjx3wX9ZqesgguUplCP78bpNkvQq5JCCc4LiiHvCycxH7IIkXFHF7j7Pt+SfzD8xtW3KfekVIMJwSBi6pMSFnDPEFjv0bdXHoXCX5LOMFk8jpwO0KIiVThpKR17jhyvKerfFY44dTPeK8P5utjkymreswd+7K/IpXddxEar7g54Du2CBbm82JnUQNXMR+4tAyLCIIAbnWvpu0dAIB01Hnt3ex7d3ukOEuqHG4twqMvHpMQTnBcUA5hEk5EgzurugqOfMHuMtbEXXqO32HxBK0dRdjABIGLqkx4qIZsQeNAXD5JH04qVAaDqpIbm7eFbdop5uEEk8mrwe0IISYSv+eELG3QrixvH9h9p+6jo60N02hz6VPDCbDFo/tHAftwJQeAWzFi+X7y89j+UVFBFtQvOsM/tjXlLADgiJWzNtf55cZQ7/SyRhSblMvU9kv3cgcf2GXqVdN0Y/QU7XcdG66ToLGnjAUAUNI4vbsyJser6zwq6YvqcFxQzkgdTjos3ovQuDQxnKzSQe8naayT2e+aP1kCx5M1bBCO7pxeO5aHpdzohelko9Yz21wzfs9JFC6qmEtTQ7agcUAzGD3/BCBP0j02rq6+DSfV6vGxbgkHAODf7xpHJwx9Ne/YkFckUw5qxifH++vL+HE7XviN2iltM5kynKS4CZPJa8LtCCEmUuw5eaJUZ6byqjXrOw6PxbZv+jyqMn5bXV7QdJbn/U9++aBpy+HZ2rGu7uzOaVqV8449u3W2s+z2c6B8mX5xP/DddbhtMshuPtQEYIs6jWsOv23fbbG7TB+7BXhpkSe4fyE1HBeUG+5/JiLsnF/cPXJ6g7ubZk0DnyAIAG7F0PKak3J5PKvmza8rm4ubjj1PyGmbq+ECcGq0W/Yls3XDur9h+bZhdZredwuxgW/gooq59DVkC+q7O2S8//0/fmVb34hWNzrQUVPMBnZxbUe/Rqcd6W+r5LMAIE9Q3zui02s1o0M9jVJZZ7+qs0UuLvg3QJ5Aruzq6u4d0mg1Q6qe7i5lnTAWOR66CYBX1dndgMnkteB2hBATmQwn6A+BQ4NyFfZ2tmGFmcMaIuwBhJjAcJKDcGhQrsLezjasMHNYQ4Q9gBATGE5yEA4NylXY29mGFWYOa4iwBxBiAsNJDsKhQbkKezvbsMLMYQ0R9gBCTGA4yUE4NChXYW9nG1aYOawhwh5AiIl/FTDwu395lBoODcpV2NvZhhVmDmuIsAcQYuL/AeYNdE0toX4fAAAAAElFTkSuQmCC" alt="" width="750" height="97" />
(3)生成的 News 实体和 News.hbm.xml 文件。
/**
* @author solverpeng
* @create 2016-09-28-19:36
*/
public class News {
private int id;
private String title;
private String author;
private Date date; public int getId() {
return id;
} public void setId(int id) {
this.id = id;
} public String getTitle() {
return title;
} public void setTitle(String title) {
this.title = title;
} public String getAuthor() {
return author;
} public void setAuthor(String author) {
this.author = author;
} public Date getDate() {
return date;
} public void setDate(Date date) {
this.date = date;
} @Override
public boolean equals(Object o) {
if(this == o) {
return true;
}
if(o == null || getClass() != o.getClass()) {
return false;
} News news = (News) o; if(id != news.id) {
return false;
}
if(title != null ? !title.equals(news.title) : news.title != null) {
return false;
}
if(author != null ? !author.equals(news.author) : news.author != null) {
return false;
}
if(date != null ? !date.equals(news.date) : news.date != null) {
return false;
} return true;
} @Override
public int hashCode() {
int result = id;
result = 31 * result + (title != null ? title.hashCode() : 0);
result = 31 * result + (author != null ? author.hashCode() : 0);
result = 31 * result + (date != null ? date.hashCode() : 0);
return result;
}
}
News.java
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping> <class name="com.nucsoft.hibernate.News" table="news" schema="hibernate">
<id name="id">
<column name="id" sql-type="int(11)"/>
</id>
<property name="title">
<column name="title" sql-type="varchar(255)" not-null="true"/>
</property>
<property name="author">
<column name="author" sql-type="varchar(50)" length="50" not-null="true"/>
</property>
<property name="date">
<column name="date" sql-type="date" not-null="true"/>
</property>
</class>
</hibernate-mapping>
News.hbm.xml
(4)测试
- 获取 SessionFactory 对象
- 通过 SessionFactory 获取 Session 对象
- 通过 Session 开启事务
- 执行数据库操作
- 提交事务
- 关闭资源
@Test
public void test() {
// 1.创建 SessionFactory
SessionFactory sessionFactory = null; Configuration configuration = new Configuration().configure(); ServiceRegistry serviceRegistry =
new ServiceRegistryBuilder().applySettings(configuration.getProperties()).buildServiceRegistry(); sessionFactory = configuration.buildSessionFactory(serviceRegistry); // 2.创建 Session
Session session = sessionFactory.openSession(); // 3.开启事务
Transaction transaction = session.beginTransaction(); // 4.执行数据库操作
News news = new News();
news.setTitle("Title");
news.setAuthor("tom");
news.setDate(new Date(new java.util.Date().getTime())); session.save(news);
// 5.提交事务
transaction.commit(); // 6.关闭 Session
session.close(); // 7.关闭 SessionFactory
sessionFactory.close(); }
说明:
①SessionFactory 对象是通过 Configuration 对象来获取的,Configuration 的 configure() 方法会默认取读取类路径下的 hibernate.cfg.xml 文件。
从 hibernate.cfg.xml 中读取的配置会向 ServiceRegistry 中注册,最终生成的 SessionFactory 对象就是根据 hibernate.cfg.xml 配置生成的。
②事务的开启:Session 的 beginTransaction() 方法。
③注意资源的关闭。
④事实上,在容器的环境下,我们不需要去关注 SessionFactory 的获取,资源的关闭。
结果:
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" alt="" width="750" height="47" />
三、总结
从第一部分 Hibernate 概述中,确定了学习 Hibernate,要从以下几个方面来学习:Hibernate的配置文件,对象关系映射文件(主要内容是关联关系),Session API 以及缓存,事务控制。
从第二部分 Helloworld 中,体验了 Hibernate的 便捷,关于配置的添加,上篇文章已经说过,在以后的文章中详细介绍具体配置。
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