转自:http://www.blogjava.net/pengo/archive/2010/11/28/339229.html
弃用了struts,用spring mvc框架做了几个项目,感觉都不错,而且使用了注解方式,可以省掉一大堆配置文件。本文主要介绍使用注解方式配置的spring mvc,之前写的spring3.0 mvc和rest小例子没有介绍到数据层的内容,现在这一篇补上。下面开始贴代码。
文中用的框架版本:spring 3,hibernate 3,没有的,自己上网下。
web.xml配置:
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<?xml version="1.0" encoding="UTF-8"?>
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<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
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<display-name>s3h3</display-name>
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<context-param>
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<param-name>contextConfigLocation</param-name>
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<param-value>classpath:applicationContext*.xml</param-value>
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</context-param>
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<listener>
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<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
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</listener>
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<servlet>
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<servlet-name>spring</servlet-name>
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<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
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<load-on-startup>1</load-on-startup>
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</servlet>
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<servlet-mapping>
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<servlet-name>spring</servlet-name> <!-- 这里在配成spring,下边也要写一个名为spring-servlet.xml的文件,主要用来配置它的controller -->
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<url-pattern>*.do</url-pattern>
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</servlet-mapping>
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<welcome-file-list>
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<welcome-file>index.jsp</welcome-file>
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</welcome-file-list>
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</web-app>
spring-servlet,主要配置controller的信息
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<?xml version="1.0" encoding="UTF-8"?>
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<beans xmlns="http://www.springframework.org/schema/beans"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:p="http://www.springframework.org/schema/p"
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xmlns:context="http://www.springframework.org/schema/context"
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xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
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http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
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http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
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http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">
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<context:annotation-config />
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<!--把标记了@Controller注解的类转换为bean -->
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<context:component-scan base-package="com.mvc.controller"/>
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<!--启动Spring MVC的注解功能,完成请求和注解POJO的映射 -->
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<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"/>
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<!--对模型视图名称的解析,即在模型视图名称添加前后缀 -->
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<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"
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p:prefix="/WEB-INF/view/"p:suffix=".jsp"/>
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<bean id="multipartResolver"
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class="org.springframework.web.multipart.commons.CommonsMultipartResolver"
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p:defaultEncoding="utf-8"/>
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</beans>
applicationContext.xml代码
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<?xml version="1.0" encoding="UTF-8"?>
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<beans xmlns="http://www.springframework.org/schema/beans"
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xmlns:aop="http://www.springframework.org/schema/aop"xmlns:context="http://www.springframework.org/schema/context"
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xmlns:p="http://www.springframework.org/schema/p"xmlns:tx="http://www.springframework.org/schema/tx"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="
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http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
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http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
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http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
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http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">
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<context:annotation-config />
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<context:component-scan base-package="com.mvc"/> <!--自动扫描所有注解该路径 -->
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<context:property-placeholder location="classpath:/hibernate.properties"/>
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<bean id="sessionFactory"
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class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
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<property name="dataSource"ref="dataSource"/>
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<property name="hibernateProperties">
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<props>
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<prop key="hibernate.dialect">${dataSource.dialect}</prop>
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<prop key="hibernate.hbm2ddl.auto">${dataSource.hbm2ddl.auto}</prop>
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<prop key="hibernate.hbm2ddl.auto">update</prop>
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</props>
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</property>
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<property name="packagesToScan">
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<list>
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<value>com.mvc.entity</value><!--扫描实体类,也就是平时所说的model -->
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</list>
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</property>
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</bean>
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<bean id="transactionManager"
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class="org.springframework.orm.hibernate3.HibernateTransactionManager">
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<property name="sessionFactory"ref="sessionFactory"/>
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<property name="dataSource"ref="dataSource"/>
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</bean>
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<bean id="dataSource"
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class="org.springframework.jdbc.datasource.DriverManagerDataSource">
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<property name="driverClassName"value="${dataSource.driverClassName}"/>
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<property name="url"value="${dataSource.url}"/>
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<property name="username"value="${dataSource.username}"/>
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<property name="password"value="${dataSource.password}"/>
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</bean>
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<!--Dao的实现 -->
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<bean id="entityDao"class="com.mvc.dao.EntityDaoImpl">
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<property name="sessionFactory"ref="sessionFactory"/>
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</bean>
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<tx:annotation-driven transaction-manager="transactionManager"/>
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<tx:annotation-driven mode="aspectj"/>
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<aop:aspectj-autoproxy/>
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</beans>
hibernate.properties数据库连接配置
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dataSource.password=123
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dataSource.username=root
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dataSource.databaseName=test
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dataSource.driverClassName=com.mysql.jdbc.Driver
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dataSource.dialect=org.hibernate.dialect.MySQL5Dialect
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dataSource.serverName=localhost:3306
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dataSource.url=jdbc:mysql://localhost:3306/test
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dataSource.properties=user=${dataSource.username};databaseName=${dataSource.databaseName};serverName=${dataSource.serverName};password=${dataSource.password}
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dataSource.hbm2ddl.auto=update
配置已经完成,下面开始例子
先在数据库建表,例子用的是mysql数据库
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CREATE TABLE `test`.`student` (
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`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
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`name` varchar(45) NOT NULL,
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`psw` varchar(45) NOT NULL,
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PRIMARY KEY (`id`)
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)
建好表后,生成实体类
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package com.mvc.entity;
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import java.io.Serializable;
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import javax.persistence.Basic;
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import javax.persistence.Column;
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import javax.persistence.Entity;
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import javax.persistence.GeneratedValue;
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import javax.persistence.GenerationType;
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import javax.persistence.Id;
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import javax.persistence.Table;
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@Entity
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@Table(name = "student")
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public class Student implements Serializable {
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private static final long serialVersionUID = 1L;
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@Id
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@Basic(optional = false)
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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@Column(name = "id", nullable = false)
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private Integer id;
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@Column(name = "name")
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private String user;
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@Column(name = "psw")
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private String psw;
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public Integer getId() {
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return id;
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}
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public void setId(Integer id) {
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this.id = id;
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}
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public String getUser() {
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return user;
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}
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public void setUser(String user) {
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this.user = user;
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}
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public String getPsw() {
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return psw;
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}
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public void setPsw(String psw) {
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this.psw = psw;
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}
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}
Dao层实现
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package com.mvc.dao;
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import java.util.List;
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public interface EntityDao {
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public List<Object> createQuery(final String queryString);
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public Object save(final Object model);
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public void update(final Object model);
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public void delete(final Object model);
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}
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package com.mvc.dao;
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import java.util.List;
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import org.hibernate.Query;
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import org.springframework.orm.hibernate3.HibernateCallback;
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import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
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public class EntityDaoImpl extends HibernateDaoSupport implements EntityDao{
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public List<Object> createQuery(final String queryString) {
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return (List<Object>) getHibernateTemplate().execute(
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new HibernateCallback<Object>() {
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public Object doInHibernate(org.hibernate.Session session)
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throws org.hibernate.HibernateException {
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Query query = session.createQuery(queryString);
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List<Object> rows = query.list();
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return rows;
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}
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});
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}
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public Object save(final Object model) {
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return getHibernateTemplate().execute(
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new HibernateCallback<Object>() {
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public Object doInHibernate(org.hibernate.Session session)
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throws org.hibernate.HibernateException {
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session.save(model);
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return null;
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}
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});
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}
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public void update(final Object model) {
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getHibernateTemplate().execute(new HibernateCallback<Object>() {
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public Object doInHibernate(org.hibernate.Session session)
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throws org.hibernate.HibernateException {
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session.update(model);
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return null;
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}
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});
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}
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public void delete(final Object model) {
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getHibernateTemplate().execute(new HibernateCallback<Object>() {
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public Object doInHibernate(org.hibernate.Session session)
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throws org.hibernate.HibernateException {
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session.delete(model);
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return null;
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}
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});
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}
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}
Dao在applicationContext.xml注入
Dao只有一个类的实现,直接供其它service层调用,如果你想更换为其它的Dao实现,也只需修改这里的配置就行了。
开始写view页面,WEB-INF/view下新建页面student.jsp,WEB-INF/view这路径是在spring-servlet.xml文件配置的,你可以配置成其它,也可以多个路径。student.jsp代码
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<%@ page language="java" contentType="text/html; charset=UTF-8"
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedBlockEnd.gif)
pageEncoding="UTF-8"%>
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
<%@ include file="/include/head.jsp"%>
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
<html>
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
<head>
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
<meta http-equiv="Content-Type"content="text/html; charset=UTF-8">
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
<title>添加</title>
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
<script language="javascript"src="<%=request.getContextPath()%><!--
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
/script/jquery.min.js">
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
// --></script>
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
<style><!--
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
table{ border-collapse:collapse; }
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
td{ border:1px solid #f00; }
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
--></style><style mce_bogus="1">table{ border-collapse:collapse; }
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
td{ border:1px solid #f00; }</style>
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
<script type="text/javascript"><!--
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
function add(){
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
window.location.href="<%=request.getContextPath() %>/student.do?method=add";
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
function del(id){
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
$.ajax( {
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
type : "POST",
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
url : "<%=request.getContextPath()%>/student.do?method=del&id=" + id,
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
dataType: "json",
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
success : function(data) {
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
if(data.del == "true"){
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
alert("删除成功!");
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
$("#" + id).remove();
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
else{
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
alert("删除失败!");
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
},
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
error :function(){
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
alert("网络连接出错!");
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
});
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
// --></script>
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
</head>
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
<body>
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
<input id="add" type="button" onclick="add()" value="添加"/>
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
<table >
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
<tr>
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
<td>序号</td>
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
<td>姓名</td>
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
<td>密码</td>
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
<td>操作</td>
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
</tr>
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
<c:forEach items="${list}" var="student">
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
<tr id="<c:out value="${student.id}"/>">
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
<td><c:out value="${student.id}"/></td>
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
<td><c:out value="${student.user}"/></td>
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
<td><c:out value="${student.psw}"/></td>
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
<td>
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
<input type="button" value="编辑"/>
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
<input type="button" onclick="del('<c:out value="${student.id}"/>')" value="删除"/>
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
</td>
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
</tr>
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
</c:forEach>
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
</table>
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
</body>
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
</html>
student_add.jsp
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
<%@ page language="java" contentType="text/html; charset=UTF-8"
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedBlockEnd.gif)
pageEncoding="UTF-8"%>
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
<%@ include file="/include/head.jsp"%>
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
<html>
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
<head>
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
<meta http-equiv="Content-Type"content="text/html; charset=UTF-8">
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
<title>学生添加</title>
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
<mce:script type="text/javascript"><!--
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
function turnback(){
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
window.location.href="<%=request.getContextPath() %>/student.do";
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
}
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
// --></mce:script>
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
</head>
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
<body>
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
<form method="post"action="<%=request.getContextPath() %>/student.do?method=save">
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
<div><c:out value="${addstate}"></c:out></div>
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
<table>
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
<tr><td>姓名</td><td><input id="user"name="user"type="text"/></td></tr>
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
<tr><td>密码</td><td><input id="psw"name="psw"type="text"/></td></tr>
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
<tr><td colSpan="2"align="center"><input type="submit"value="提交"/><input type="button"onclick="turnback()"value="返回"/> </td></tr>
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
</table>
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
</form>
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
</body>
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
</html>
controller类实现,只需把注解写上,spring就会自动帮你找到相应的bean,相应的注解标记意义,不明白的,可以自己查下@Service,@Controller,@Entity等等的内容。
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
package com.mvc.controller;
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
import java.util.List;
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
import javax.servlet.http.HttpServletRequest;
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
import javax.servlet.http.HttpServletResponse;
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
import org.apache.commons.logging.Log;
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
import org.apache.commons.logging.LogFactory;
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
import org.springframework.beans.factory.annotation.Autowired;
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
import org.springframework.stereotype.Controller;
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
import org.springframework.ui.ModelMap;
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
import org.springframework.web.bind.annotation.RequestMapping;
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
import org.springframework.web.bind.annotation.RequestMethod;
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
import org.springframework.web.bind.annotation.RequestParam;
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
import org.springframework.web.servlet.ModelAndView;
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
import com.mvc.entity.Student;
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
import com.mvc.service.StudentService;
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
@Controller
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
@RequestMapping("/student.do")
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
public class StudentController {
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
protected final transient Log log = LogFactory
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
.getLog(StudentController.class);
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
@Autowired
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
private StudentService studentService;
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
public StudentController(){
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
@RequestMapping
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
public String load(ModelMap modelMap){
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
List<Object> list = studentService.getStudentList();
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
modelMap.put("list", list);
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
return "student";
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
@RequestMapping(params = "method=add")
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
public String add(HttpServletRequest request, ModelMap modelMap) throws Exception{
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
return "student_add";
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
@RequestMapping(params = "method=save")
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
public String save(HttpServletRequest request, ModelMap modelMap){
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
String user = request.getParameter("user");
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
String psw = request.getParameter("psw");
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
Student st = new Student();
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
st.setUser(user);
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
st.setPsw(psw);
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
try{
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
studentService.save(st);
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
modelMap.put("addstate", "添加成功");
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
catch(Exception e){
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
log.error(e.getMessage());
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
modelMap.put("addstate", "添加失败");
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
return "student_add";
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
@RequestMapping(params = "method=del")
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
public void del(@RequestParam("id") String id, HttpServletResponse response){
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
try{
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
Student st = new Student();
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
st.setId(Integer.valueOf(id));
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
studentService.delete(st);
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
response.getWriter().print("{\"del\":\"true\"}");
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
catch(Exception e){
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
log.error(e.getMessage());
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
e.printStackTrace();
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}
service类实现
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
package com.mvc.service;
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
import java.util.List;
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
import org.springframework.beans.factory.annotation.Autowired;
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
import org.springframework.stereotype.Service;
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
import org.springframework.transaction.annotation.Transactional;
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
import com.mvc.dao.EntityDao;
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
import com.mvc.entity.Student;
![](http://www.blogjava.net/Images/OutliningIndicators/None.gif)
@Service
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedBlockStart.gif)
public class StudentService {
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
@Autowired
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
private EntityDao entityDao;
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
@Transactional
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
public List<Object> getStudentList(){
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
StringBuffer sff = new StringBuffer();
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
sff.append("select a from ").append(Student.class.getSimpleName()).append(" a ");
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
List<Object> list = entityDao.createQuery(sff.toString());
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
return list;
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
public void save(Student st){
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
entityDao.save(st);
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
public void delete(Object obj){
![](http://www.blogjava.net/Images/OutliningIndicators/InBlock.gif)
entityDao.delete(obj);
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://www.blogjava.net/Images/OutliningIndicators/ExpandedBlockEnd.gif)
}