struts2_hibernate登陆范例..doc

开发工具：MyEclipse 6.0 ，Tomcat 5.5 ，JDK 1.5? ，MySQL 5.0 ；开发准备：下载Struts 2.0和Hibernate 3.2，大家可Struts和Hibernate的官方网站下载这两个框架。我们先来总览一下开发完成后的包—类图：首先NEW一个Web Project ，名为LoginSystem ，在 lib 目录下加入Struts 2.0的Jar包和Hibernate 3.2的Jar包，然后按下面的步骤来： ??? 1、在 src 目录下建 hibernate.cfg.xml 全部代码如下： ?1?xml?version=1.0?encoding=UTF-8??2!DOCTYPE?hibernate-configuration?PUBLIC?3??????????-//Hibernate/Hibernate?Configuration?DTD?3.0//EN?4??????????/hibernate-configuration-3.0.dtd?5?6!--?Generated?by?MyEclipse?Hibernate?Tools.???????????????????--?7hibernate-configuration?8????session-factory?9????????property?name=connection.usernameroot/property10????????property?name=connection.url11????????????jdbc:mysql://localhost:3306/LoginSystem12????????/property13????????property?name=dialect14????????????org.hibernate.dialect.MySQLDialect15????????/property16????????property?name=file17????????????LoginSystem18????????/property19????????property?name=connection.passwordroot/property20????????property?name=connection.driver_class21????????????com.mysql.jdbc.Driver22????????/property23????????property?name=show_sqltrue/property24????????!--?POJO类映射配置?--25????????mapping?resource=com/rong/ORM/User.hbm.xml?/26????/session-factory27/hibernate-configuration ??? 2、建立实体类 User.java 及其映射文件 User.hbm.xml 两者都放在 com.rong.ORM 包下。其中User.java的代码如下： ?1package?com.rong.ORM;?2?3public?class?User?{?4?????5????private?int?id;????????//主键ID?6????private?String?name;????//用户名?7????private?String?pwd;????????//密码?8?9????/*10?????*?Getter方法与Setter方法11?????*/????12????public?String?getName()?{13????????return?name;14????}15????public?void?setName(String?name)?{16?????????=?name;17????}18????public?String?getPwd()?{19????????return?pwd;20????}21????public?void?setPwd(String?pwd)?{22????????this.pwd?=?pwd;23????}24????public?int?getId()?{25????????return?id;26????}27????public?void?setId(int?id)?{28????????this.id?=?id;29????}30} ??? User.hbm.xml的代码如下： ?1?xml?version=1.0?encodin