struts2，hibernate，spring三大框架整合的注册程序(xml 配置,mysql数据库)
首先呢，新建一个web project，然后导入struts2，hibernate，spring的jar包。
接下来在web.xml下新加listener和filter，分别针对spring和struts2的。web.xml的代码如下：
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<welcome-file-list>
<welcome-file>register.jsp</welcome-file>
</welcome-file-list>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
。在src下新建下面这些包：
com.guang.action，com.guang.dao，com.guang.dao.impl，com.guang.service，com.guang.service.impl，com.guang.model.
在model下新建实体类User：
package com.guang.model;
public class User {
private int id;
private String username;
private String password;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
再在model下新建User.hbm.xml，与User POJO相对应，代码如下：
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="com.guang.model">
<class name="User" table="user">
<id name="id" column="id" type="integer">
<generator class="identity"></generator>
</id>
<property name="username" column="username" type="string"></property>
<property name="password" column="password" type="string"></property>
</class>
</hibernate-mapping>下面完成dao层：
dao下新建接口：UserDAO,代码如下：
package com.guang.dao;
import com.guang.model.User;
public interface UserDAO {
public boolean exist(User user);
public void save(User user);
}
再在dao.impl下新建类UserDAOImpl，继承自UserDAO，代码如下：
package com.guang.dao.impl;
import java.util.List;
import org.hibernate.Session;
import org.springframework.orm.hibernate3.HibernateTemplate;
import com.guang.dao.UserDAO;
import com.guang.model.User;
import com.guang.util.HibernateUtil;
public class UserDAOImpl implements UserDAO {
private HibernateTemplate hibernateTemplate;
public void save(User user) {
hibernateTemplate.save(user);
}
public boolean exist(User user) {
String hql="from User u where u.username='"+user.getUsername()+"'";
List<User> users=hibernateTemplate.find(hql);
int count=users.size();
if(count>0 && users !=null){
return true;
}
return false;
}
public void setHibernateTemplate(HibernateTemplate hibernateTemplate) {
this.hibernateTemplate = hibernateTemplate;
}
public HibernateTemplate getHibernateTemplate() {
return hibernateTemplate;
}
}
下面完成service层：
在service下新建接口UserService，代码如下：
package com.guang.service;
import com.guang.model.User;
public interface UserService {
public boolean exist(User user);
public void addUser(User user);
}
再在service.impl下新建UserServiceImpl继承自UserService，代码如下：
package com.guang.service.impl;
import com.guang.dao.UserDAO;
import com.guang.dao.impl.UserDAOImpl;
import com.guang.model.User;
import com.guang.service.UserService;
public class UserServiceImpl implements UserService {
UserDAO userdao;
public UserDAO getUserdao() {
return userdao;
}
public void setUserdao(UserDAO userdao) {
this.userdao = userdao;
}
public void addUser(User user) {
this.userdao.save(user);
}
public boolean exist(User user) {
if(userdao.exist(user)){
return true;
}
return false;
}
}
接下来在action下面新建UserAction类。负责完成注册的，代码如下：
package com.guang.action;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import com.guang.model.User;
import com.guang.service.UserService;
import com.guang.service.impl.UserServiceImpl;
import com.opensymphony.xwork2.ActionSupport;
public class RegisterAction extends ActionSupport {
UserService userservice;
public UserService getUserservice() {
return userservice;
}
public void setUserservice(UserService userservice) {
this.userservice = userservice;
}
private String username;
private String password;
private String repassword;
@Override
public String execute() throws Exception {
User user=new User();
user.setUsername(username);
user.setPassword(password);
if(userservice.exist(user)){
return "fail";
}
userservice.addUser(user);
return SUCCESS;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getRepassword() {
return repassword;
}
public void setRepassword(String repassword) {
this.repassword = repassword;
}
}
到现在为止，Java的代码基本已经写完了。
接下来配置struts.xml，代码如下：
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.devMode" value="true" />
<constant name="struts.i18n.encoding" value="GBK"></constant>
<!-- 允许静态成员访问 -->
<constant name="struts.ognl.allowStaticMethodAccess" value="true" ></constant>
<!-- Add packages here -->
<package name="ssh_01" extends="struts-default" >
<action name="register" class="com.guang.action.RegisterAction">
<result name="fail">/register_fail.jsp</result>
<result name="success">/register_success.jsp</result>
</action>
</package>
</struts>
接下来配置最核心的spring的配置文件，applicationContext.xml，代码如下：
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<context:annotation-config/>
<context:component-scan base-package="com.guang"></context:component-scan>
<!--
<bean id="datasource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/spring"/>
<property name="username" value="root"/>
<property name="password" value="guang"/>
</bean>
-->
<!-- 第二种连接方式 -->
<!--
<bean id="datasource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close"
p:driverClassName="com.mysql.jdbc.Driver"
p:url="jdbc:mysql://localhost:3306/spring"
p:username="root"
p:password="guang" />
-->
<!-- 第三种连接方式 -->
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations" value="classpath:jdbc.properties"/>
</bean>
<bean id="datasource" destroy-method="close"
class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</bean>
<!-- annotation 配置 model
<bean id="SessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource" ref="datasource"/>
<property name="annotatedClasses">
<list>
<value >com.guang.model.User</value>
</list>
</property>
-->
<!--xml配置model -->
<bean id="SessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="datasource"/>
<property name="mappingResources" >
<list>
<value >com/guang/model/User.hbm.xml</value>
</list>
</property>
<property name="hibernateProperties">
<value>
<!-- 数据库方言 -->
hibernate.dialect=org.hibernate.dialect.MySQLDialect
<!-- 是否显示sql语句 -->
hibernate.show_sql=true
<!-- -->
hibernate.hbm2ddl.auto=update
<!--显示sql语句格式化 -->
hibernate.format_sql=true
hibernate.cache.provider_class=org.hibernate.cache.NoCacheProvider
</value>
</property>
</bean>
<bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
<property name="sessionFactory" ref="SessionFactory"></property>
</bean>
<bean id="userdao" class="com.guang.dao.impl.UserDAOImpl">
<property name="hibernateTemplate" ref="hibernateTemplate"></property>
</bean>
<bean id="userservice" class="com.guang.service.impl.UserServiceImpl">
<property name="userdao" ref="userdao"></property>
</bean>
<bean id="register" class="com.guang.action.RegisterAction" scope="prototype">
<property name="userservice" ref="userservice"></property>
</bean>
</beans>
以上的applicationContext.xml中需要注意的是，我列出了三种datasource的实现，最终没被注释这种，也就是实现这种，需要在src下面新建文件：jdbc.properties，将数据库的连接属性写在里面，方便修改，代码如下，可根据自己的实际来修改：
jdbc.driverClassName=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://localhost:3306/ssh_01 jdbc.username=root jdbc.password=guang
注意，除了struts2，hibernate，spring所需的jar包之外，还需要一个jar包，是struts2的用来引进spring来管理自己的action类（也就是dao下面的类）。我这个struts2的版本是：struts2-spring-plugin-2.2.3.1.jar。需要把这个包放到ib下。
还有一点需要注意的是：
在struts.xml里面的action的name属性，必须和applicationContext.xml里面配置的bean同名。
到此，这个小程序就完成了。主要的想法就是整合三大框架到一起。jsp页面在此省略。