hibernate入門配置

　　HibernateUtiljava

　　package easewirelessgroupsmshbntutil;

　　import netsfhibernateHibernateException;

　　import netsfhibernateSession;

　　import netsfhibernatecfgConfiguration;

　　/**

　　* Configures and provides access to Hibernate sessions tied to the

　　* current thread of execution  Follows the Thread Local Session

　　* pattern see {@link }

　　*/

　　public class HibernateUtil {

　　/**

　　* Location of hibernatecfgxml file

　　* NOTICE: Location should be on the classpath as Hibernate uses

　　* #resourceAsStream style lookup for its configuration file That

　　* is place the config file in a Java package the default location

　　* is the default Java package<br><br>

　　* Examples: <br>

　　* <code>CONFIG_FILE_LOCATION = /nfxml

　　* CONFIG_FILE_LOCATION = /com/foo/bar/nfxml</code>

　　*/

　　private static String CONFIG_FILE_LOCATION = /hibernatecfgxml;//hibernatecfgxml

　　/** Holds a single instance of Session */

　　private static final ThreadLocal threadLocal = new ThreadLocal();

　　/** The single instance of hibernate configuration */

　　private static final Configuration cfg = new Configuration();

　　/** The single instance of hibernate SessionFactory */

　　private static netsfhibernateSessionFactory sessionFactory;

　　/**

　　* Returns the ThreadLocal Session instance  Lazy initialize

　　* the <code>SessionFactory</code> if needed

　　*

　　*  @return Session

　　*  @throws HibernateException

　　*/

　　public static Session currentSession() throws HibernateException {

　　Session session = (Session) threadLocalget();

　　&nbsp;    if (session == null) {

　　if (sessionFactory == null) {

　　try {

　　nfigure(CONFIG_FILE_LOCATION);

　　//nfigure();

　　sessionFactory = cfgbuildSessionFactory();

　　}

　　catch (Exception e) {

　　Systemerrprintln(%%%% Error Creating SessionFactory %%%%);

　　Systemerrprintln(||||||||||||| + egetMessage());

　　eprintStackTrace();

　　}

　　}

　　session = sessionFactoryopenSession();

　　threadLocalset(session);

　　}

　　return session;

　　}

　　/**

　　*  Close the single hibernate session instance

　　*

　　*  @throws HibernateException

　　*/

　　public static void closeSession() throws HibernateException {

　　Session session = (Session) threadLocalget();

　　threadLocalset(null);

　　if (session != null) {

　　sessionclose();

　　}

　　}

　　/**

　　* Default constructor

　　*/

　　private HibernateUtil() {

　　}

　　}

　　一建表

　　cat表

　　代碼

　　CREATE TABLE cat (

　　cat_id varchar() NOT NULL

　　NAME varchar() NOT NULL

　　sex CHAR()

　　weight FLOAT

　　PRIMARY KEY (cat_id)

　　);

　　二po層（系統以cathbmxml為准一個xml可以寫多個class）

　　Xml代碼

　　<<<<<<<<<<<<<cathbmxml>>>>>>>>>>>>>>>>>>>>>>>

　　<?xml version=?>

　　<!DOCTYPE hibernatemapping PUBLIC //Hibernate/Hibernate Mapping DTD//EN mappingdtd>

　　<hibernatemapping>

　　<class name=easewirelessgroupsmshbntpoCat table=cat>

　　<id name=id type=string unsavedvalue=null >

　　<column name=cat_id sqltype=varchar() notnull=true/>

　　<generator class=uuidhex/>

　　</id>

　　<property name=name>

　　<column name=NAME sqltype=varchar() notnull=true/>

　　</property>

　　<property name=sex/>

　　<property name=weight/>

　　</class>

　　</hibernatemapping>

　　Java代碼

　　<<<<<<<<<<<<<Catjava>>>>>>>>>>>>>>>>>>>>>>>>>

　　package easewirelessgroupsmshbntpo;

　　public class Cat {

　　private String id;

　　private String name;

　　private char sex;

　　private float weight;

　　public Cat() {

　　}

　　public String getId() {

　　return id;

　　}

　　public void setId(String id) {

　　thisid = id;

　　}

　　public String getName() {

　　return name;

　　}

　　public void setName(String name) {

　　thisname = name;

　　}

　　public char getSex() {

　　return sex;

　　}

　　public void setSex(char sex) {

　　thissex = sex;

　　}

　　public float getWeight() {

　　return weight;

　　}

　　public void setWeight(float weight) {

　　thisweight = weight;

　　}

　　public String toString() {

　　String strCat = new StringBuffer()

　　append(thisgetId())append( )

　　append(thisgetName())append( )

　　append(thisgetSex())append( )

　　append(thisgetWeight())

　　toString();

　　return strCat;

　　}

　　}

　　三hibernatecfgxml

　　（切切不要自己去加屬性基本的就兩個connectiondatasource和dialect）

　　Xml代碼

　　<property name=connectionusername>root</property>

　　<property name=connectionpassword>root</property>

　　<property name=connectionprovider_class>nnectionDatasourceConnectionProvider</property>

　　<property name=jndiclass>orggjtmmmysqlDriver</property>

　　<<<<<<<<<<<<<hibernatecfgxml>>>>>>>>>>>>>>>>>>>>>>>

　　<?xml version= encoding=UTF?>

　　<!DOCTYPE hibernateconfiguration PUBLIC

　　//Hibernate/Hibernate Configuration DTD //EN

　　configurationdtd>

　　<! DO NOT EDIT: This is a generated file that is synchronized >

　　<! by MyEclipse Hibernate tool integration                   >

　　<hibernateconfiguration>

　　<sessionfactory>

　　<! properties >

　　<property name=connectiondatasource>java:comp/env/jdbc/test</property>

　　<property name=show_sql>true</property>

　　<property name=dialect>netsfhibernatedialectMySQLDialect</property>

　　<! mapping files >

　　<mapping resource=com/netease/wireless/groupsms/hbnt/po/cathbmxml/>

　　</sessionfactory>

　　</hibernateconfiguration>

　　四測試servlet

　　//Session生成/關閉

　　Java代碼

　　<<<<<<<<<<<<<測試HbntTestSvltjava>>>>>>>>>>>>>>>>>>>>>>>

　　/*

　　*

　　* @(#)rpsms V

　　* Copyright NetEase Inc All rights reserved

　　*

　　* coder: sweater

　　* email:

　　*

　　* graphic designer:

　　* email:

　　*

　　* fuction向電話薄中添加組和電話號碼

　　*

　　*/

　　package easewirelessgroupsmsvo;

　　import javaioIOException;

　　import javaioPrintWriter;

　　import javautilIterator;

　　import javaxservletServletException;

　　import javaxservlethttpHttpServlet;

　　import javaxservlethttpHttpServletRequest;

　　import javaxservlethttpHttpServletResponse;

　　import netsfhibernateHibernateException;

　　import netsfhibernateQuery;

　　import netsfhibernateSession;

　　import netsfhibernateTransaction;

　　import easewirelessgroupsmshbntpoCat;

　　import easewirelessgroupsmshbntutilHibernateUtil;

　　/**

　　*

　　* @author sweater

　　*/

　　public class HbntTestSvlt extends HttpServlet {

　　/**

　　* Constructor of the object

　　*/

　　public HbntTestSvlt() {

　　super();

　　}

　　/**

　　* Destruction of the servlet <br>

　　*/

　　public void destroy() {

　　superdestroy(); // Just puts destroy string in log

　　// Put your code here

　　}

　　/**

　　* The doGet method of the servlet <br>

　　*

　　* This method is called when a form has its tag value method equals to get

　　*

　　* @param request the request send by the client to the server

　　* @param response the response send by the server to the client

　　* @throws ServletException if an error occurred

　　* @throws IOException if an error occurred

　　*/

　　public void doGet(HttpServletRequest request HttpServletResponse response)

　　throws ServletException IOException {

　　responsesetContentType(text/html);

　　PrintWriter out = responsegetWriter();

　　outprintln(<html>);

　　outprintln(<head>);

　　outprintln(<title>Hello Hibernate</title>);

　　outprintln(</head>);

　　outprintln(<body>);

　　outprintln(Hello Hibernate!<br>);

　　try {

　　Session session = HibernateUtilcurrentSession();

　　Transaction tx = sessionbeginTransaction();

　　Query query = sessioncreateQuery(select cat from Cat as cat where catsex = :sex);

　　querysetCharacter(sex F);

　　for (Iterator it = erate(); ithasNext();) {

　　Cat cat = (Cat) itnext();

　　outprintln(Cat: + cattoString() + <br>);

　　}

　　mit();

　　HibernateUtilcloseSession();

　　} catch (HibernateException e) {

　　Systemoutprintln(egetMessage());

　　//Systemoutprintln(eprintStackTrace());

　　}

　　outprintln(</body>);

　　outprintln(</html>);

　　}

　　/**

　　* The doPost method of the servlet <br>

　　*

　　* This method is called when a form has its tag value method equals to post

　　*

　　* @param request the request send by the client to the server

　　* @param response the response send by the server to the client

　　* @throws ServletException if an error occurred

　　* @throws IOException if an error occurred

　　*/

　　public void doPost(HttpServletRequest request HttpServletResponse response)

　　throws ServletException IOException {

　　responsesetContentType(text/html);

　　PrintWriter out = responsegetWriter();

　　outprintln(<!DOCTYPE HTML PUBLIC \//WC//DTD HTML Transitional//EN\>);

　　outprintln(<HTML>);

　　outprintln(  <HEAD><TITLE>A Servlet</TITLE></HEAD>);

　　outprintln(  <BODY>);

　　outprint(    This is );

　　outprint(thisgetClass());

　　outprintln( using the POST method);

　　outprintln(  </BODY>);

　　outprintln(</HTML>);

　　outflush();

　　outclose();

　　}

　　/**

　　* Returns information about the servlet such as

　　* author version and copyright

　　*

　　* @return String information about this servlet

　　*/

　　public String getServletInfo() {

　　return This is my default servlet created by Eclipse;

　　}

　　/**

　　* Initialization of the servlet <br>

　　*

　　* @throws ServletException if an error occure

　　*/

　　public void init() throws ServletException {

　　// Put your code here

　　}

　　}

　　Xml代碼

　　<<<<<<<<<<<<<該servlet使用時的webxml>>>>>>>>>>>>>>>>>>>>>>>

　　<?xml version= encoding=UTF?>

　　<webapp version=

　　xmlns=

　　xmlns:xsi=instance

　　xsi:schemaLocation=

　　app__xsd>

　　<servlet>

　　<description>hbnttest</description>

　　<displayname>hbnttest</displayname>

　　<servletname>HbntTestSvlt</servletname>

　　<servletclass>easewirelessgroupsmsvoHbntTestSvlt</servletclass>

　　</servlet>

　　<servletmapping>

　　<servletname>HbntTestSvlt</servletname>

　　<urlpattern>/servlet/HbntTestSvlt</urlpattern>

　　</servletmapping>

　　</webapp>

　　</SPAN< p>

From:http://tw.wingwit.com/Article/program/Java/ky/201311/27890.html