首页手记 ssh框架的搭建和整合（struts,spring,h...

ssh框架的搭建和整合（struts,spring,hibernate）

标签：

Java JavaScript

1.首先建包
File--->new--->dwp
2.导包
3.在配置文件web.xml配置一个struts2的过滤器和spring监听器。

<listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<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>
4.在Java Resources下的src目录下创建四个包(package)进行分层。

5.根据数据库表的字段编写(实体类)。
package com.third.bean;
/**

@author 登录变量
*/
public class User {

private Integer id;
private String username;
private String password;

public Integer getId() {
return id;
}
public void setId(Integer 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;
}
}
6.创建和hibernate.hbm.xml(映射文件)
点击com.hp.bean--->new--->other--->hibernate.hbm.xml.
<hibernate-mapping>
<class name="com.third.bean.User" table="USER">
<id name="id" type="java.lang.Integer">
<column name="ID" />
<generator class="assigned" />
</id>
<property name="username" type="java.lang.String">
<column name="USERNAME" />
</property>
<property name="password" type="java.lang.String">
<column name="PASSWORD" />
</property>
</class>
</hibernate-mapping>
7.在com.hp.service;com.hp.servic.impl包里编写com.hp.service(接口类)和com.hp.service.impl(实现类)。
接口类
public interface LoginService {
/**
service层接口
*/
public List login(String username,String password);
public List login(String username);
public void addUser(User user);
public User findUser(String username,String password);
}
实现类
public class LoginServiceimpl implements LoginService{
private LoginDao logindao;

public LoginDao getLogindao() {
return logindao;
}

public void setLogindao(LoginDao logindao) {
this.logindao = logindao;
}

@Override
public List login(String username, String password) {
```
return logindao.login(username, password);
```
}

@Override
public void addUser(User user) {
logindao.addUser(user);

}

@Override
public User findUser(String username, String password) {
return logindao.findUser(username, password);
}

@Override
public List login(String username) {
return logindao.login(username);
}

}
8.在com.ho.dao;com.ho.dao.impl包里编写com.ho.dao(接口类)和com.ho.dao.impl(实现类)。
接口类
/**

@author 登录Dao层
*/
public interface LoginDao {

public List<User> login(String username,String password);
public List<User> login(String username);
public void addUser(User user);
public User findUser(String username,String password);
}
实现类
/**
@author 登录dao层
*/
public class LoginDaoimpl extends HibernateDaoSupport implements LoginDao{
private HibernateTemplate hibernatetemplate;

public HibernateTemplate getHibernatetemplate() {
return hibernatetemplate;
}

public void setHibernatetemplate(HibernateTemplate hibernatetemplate) {
this.hibernatetemplate = hibernatetemplate;
}

@Override
public List<User> login(String username, String password) {

List list=hibernatetemplate.find("from User where username=? and password=?", username,password);

if(list.size()>0){
return list;
}else{
return null;
}
}

@Override
public void addUser(User user) {
hibernatetemplate.saveOrUpdate(user);

}

@Override
public User findUser(String username, String password) {
String hql="from User where username=? and password=?";
List list= hibernatetemplate.find(hql, username,password);
//查询不到 list 空
if(list.size()>0){
return (User) list.get(0);
}else{
return null;
}

}

@Override
public List<User> login(String username) {
     List list=hibernatetemplate.find("from User where username=?", username);

        if(list.size()>0){
            return list;
        }else{
            return null;
        }    
}
}

9.编写action类
/**

@author 登录功能
*/
public class LoginAction extends ActionSupport {

private String username;
private String password;
private LoginService loginservice;
private List<User> list;
private User user;
private Map map;
private List<User> users;

public List<User> getUsers() {
return users;
}
public void setUsers(List<User> users) {
this.users = users;
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public LoginService getLoginservice() {
return loginservice;
}
public void setLoginservice(LoginService loginservice) {
this.loginservice = loginservice;
}
public Map getMap() {
return map;
}
public void setMap(Map map) {
this.map = map;
}
public List<User> getList() {
return list;
}
public void setList(List<User> list) {
this.list = list;
}
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;
}
//登录
public String login(){
```
list=loginservice.login(username, password);
boolean userflag;
if (null==list) {
    userflag=false;
}else {
    ActionContext.getContext().getSession().put("username", username);          
    userflag=true;
}

map=new HashMap();
map.put("userflag", userflag);
map.put("status", "ok");
return SUCCESS;
```
}
//注册
public String reg(){
```
users=loginservice.login(username);
boolean userflag;
if (null==users) {
    userflag=false;
    loginservice.addUser(user);
}else {
    //ActionContext.getContext().getSession().put("username", username);            
    userflag=true;
}

map=new HashMap();
map.put("userflag", userflag);
map.put("status", "ok");
return SUCCESS;
```
}
}
10：编写struts.xml(struts配置文件)、applicationContext.xml(spring配置文件)、hibernate.cfg.xml(hibernate配置文件)。
struts.xml
1 <?xml version="1.0" encoding="UTF-8"?>
2 <!DOCTYPE struts PUBLIC
3 "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
4 "http://struts.apache.org/dtds/struts-2.3.dtd">
5 
7 <struts>
8 
9 <constant name="struts.enable.DynamicMethodInvocation" value="true" />
<constant name="struts.devMode" value="true" />
<constant name="struts.i18n.encoding" value="UTF-8"/>
11 
12 <package name="struts" namespace="/" extends="struts-default">
13 
18 <action name="login" class="login" method="login">

19 
20 
21 <result name="success">/index.jsp</result>
22 <result name="input">/login.jsp</result>
</action>

<bean id="hibernateTemplate" class="org.springframework.orm.hibernate5.HibernateTemplate" autowire="byType">
</bean>

<bean id="dataSource" class="com.mchange.v2.c3p0.DriverManagerDataSource">
<property name="user" value="root"></property>
<property name="password" value=""></property>
<property name="driverClass" value="com.mysql.jdbc.Driver"></property>
<property name="jdbcUrl" value="jdbc:mysql://localhost/item?characterEncoding=UTF-8"></property>
</bean>

<bean id="sessionfactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean" >
<property name="configLocation">
<value>classpath:hibernate.cfg.xml</value>
</property>
<property name="dataSource" ref="dataSource"></property>
</bean>

<bean id="tx" class="org.springframework.orm.hibernate5.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionfactory"> </property>
</bean>

<aop:config>
<aop:pointcut expression="execution( com.third.service.impl..*(..))" id="pointcut"/>
<aop:advisor advice-ref="advice" pointcut-ref="pointcut"/>
</aop:config>

<tx:advice id="advice" transaction-manager="tx">
<tx:attributes>
<tx:method name="*"/>
</tx:attributes>
</tx:advice>
</beans>
hibernate.cfg.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory name="configlocation">
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost/item?characterEncoding=UTF-8</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property>
<property name="hbm2ddl.auto">update</property>
<property name="show_sql">true</property>
<property name="format_sql">true</property>
<mapping resource="com/third/bean/User.hbm.xml"/>
<mapping resource="com/third/bean/ComputerType.hbm.xml"/>
<mapping resource="com/third/bean/Computer.hbm.xml"/>
<mapping resource="com/third/bean/ComputerUser.hbm.xml"/>
<mapping resource="com/third/bean/Tree.hbm.xml"/>
<mapping resource="com/third/bean/OrderBean.hbm.xml"/>
<mapping resource="com/third/bean/OrderDetail.hbm.xml"/>
</session-factory>
</hibernate-configuration>
11：创建一个index.jsp页面将所有数据取出来显示到页面上。
<s:form action="login" method="post">
<s:textfield name="username" label="账号"></s:textfield>
<s:password name="password" label="密码"></s:password>
<s:submit value="登录"></s:submit>
</s:form>
总结：在SSH中使用Struts作为系统的整体基础架构，负责MVC的分离，在Struts框架的模型部分，控制业务跳转，利用Hibernate框架对持久层提供支持，Spring做支持控制反转，spring在struts基础是控制业务跳转，支持struts和hibernate。具体做法是：用面向对象的分析方法根据需求提出一些模型，将这些模型实现为基本的Java对象，然后编写基本的DAO(Data Access Objects)接口，并给出Hibernate的DAO实现，采用Hibernate架构实现的DAO类来实现Java类与数据库之间的转换和访问，最后由Spring做支持，支持struts和hibernate。其实ssh框架最主要的本质是：“高内聚、低耦合”。