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SSI框架学习总结

最近由于新公司对框架的要求,需要了解下ssi的框架结构以及具体使用方法。由于之前的公司使用的是springMVC,还是有点区别,所以经过大规模的网上收集和整理资料,对ssi框架做了初步的总结并编写了一个相关的demo(新手求不喷哈),大致总结了这么几点:

框架简介:

相信大家对于mvc的三层架构已经灰常熟悉了,在这就不细讲了,个人感觉ssi的框架结构还是比较典型的mvc三层架构,还是比较容易上手的。关于这块的入门我想特别感谢下FrankHui童鞋,在他的帮助下,我才能比较快滴熟悉了这个架构,对我学习ssi的框架还是很有帮助滴。ssi的框架主要是由struts2spring以及ibatis组成,他们负责各层之间的交互与协作,从而实现整个web端的功能实现与整合。Struts目前主要负责数据传递和控制方面,spring则依靠其强大的依赖注入技术实现了类似bean托管和整合等功能,当然这只是spring功能中的冰山一角,而ibatis作为一种轻量级的OR Mapping框架,提供了半自动化对象关系映射的实现,自由度相对于hibernate更高。

框架结构:

这是我在网上找到的一张关于ssi框架的结构图,个人感觉画的还是蛮不错的,对于入门者来说,层次结构很清晰,比较实用(感谢这位大大的分享):

在这里可以很明显的看出ssi框架的大体结构以及各层之间的交互情况,顶层表现层的话,就java而言主要是jsphtml等视图层技术的编写,其中涉及我们熟悉的javascriptjquery以及extjs等。在控制层来说的话,主要是利用strust2标签功能实现action与视图层的数据交互,当然也可以使用ajax的技术实现同样的功能,这个就按个人喜好而来了。在业务逻辑层。主要是利用spring的依赖注入实现对业务逻辑类和dao类的实例托管,当然各类的实例都可以托管在spring中进行统一管理和关联,包括事务,数据源等等。在持久层,利用ibatis提供的半自动化对象关系映射的实现,开发人员可以根据需要编写具体的sql语句,通过相应的xml的配置实现对数据库的操作。

总之,SSI框架能够降低我们代码的耦合度,增强了代码的健壮性和可重用性,加快了开发速度,但是也有一些不足之处,比如由于三种框架的配置文件较多,也给我们带来了一些不便,特别是对于较小的应用来说更是如此。

相关demo介绍:

基于之前对ssi框架的学习,我也不能免俗滴选择了做一个用户管理的web实现,项目的大致框架如下:

大体上还是按照三层的分层模型来是分的,具体就不详细说了,相信大家也应该很了解整个结构的。

Ø  开发环境简介:

工具:eclipse3.6+tomcat7+mysql5.1

框架:struts2spring3.0.5ibatis2.3.4.726

开发步骤及配置简介:

第一步,众所周知肯定是导入相关的lib库啦,由于我使用的前端是extjs,所以还需要导入extjs相关的js以及css依赖文件。由于lib库太多就不截图了,只截取extjs的相关依赖文件:

这样基本的环境就有了,数据库的设计则需要根据model层的对象来确定。 

第二步,建立相关的model,代码如下:

User.java:

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packagecom.broada.demo.entity;
/**
 *
 * @author smm
 *
 */
publicclassUser {
 
    private intid;         //用户id
    private String name;       //用户名称
    private String password;   //用户密码
    private String username;   //用户昵称
    private String address;    //地址
 
     
    public String getUsername() {
        return username;
    }
 
    public voidsetUsername(String username) {
        this.username = username;
    }
 
    public String getAddress() {
        return address;
    }
 
    public voidsetAddress(String address) {
        this.address = address;
    }
 
    public intgetId() {
        return id;
    }
 
    public voidsetId(int id) {
        this.id = id;
    }
 
    public String getName() {
        return name;
    }
 
    public voidsetName(String name) {
        this.name = name;
    }
 
    public String getPassword() {
        return password;
    }
 
    public voidsetPassword(String password) {
        this.password = password;
    }
 
}

第三步,strust的相关配置,这里就不详细讲述strust的单独配置及原理了,直接上实例中的相关配置文件,主要是strust.xml以及web.xml的相关配置,部分主要配置如下:

Web.xml:

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<!– struts2模块 –>
    <filter>
        <filter-name>struts2</filter-name>
       <!– 这个就是struts2的核心过滤器 –>
        <filter-class>
           org.apache.struts2.dispatcher.FilterDispatcher
        </filter-class>
         
    </filter>
    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

strust.xml:

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<?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>
    <!– 这是一个重要的地方,很多人在使用<s:include>子页面后,发现子页面乱码,怎么改都不行,原因就在次,struts2的默认编码为UTF-8,乱码的同志请看看你的jsp页面上的编码是不是和这个不一致呢。只要把这里和jsp编码改一致就行了 –>
    <constant name=”struts.i18n.encoding” value=”UTF-8″ />
    <!– 告诉struts2,我要用spring装配工厂,其实默认就是这个了-_-!!! –>
    <constant name=”struts.objectFactory” value=”spring” />
    <!– struts2的扩展名,比如struts1的时候,用的.do,struts2默认为.action,可以改成其它的,比如.dxd –>
    <constant name=”struts.action.extension” value=”action” />
    <!– 资源文件 –>
    <constant name=”struts.custom.i18n.resources”
        value=”messageResource”>
    </constant>
 
    <!– 用户注册类 –>
    <!– abstract属性就说明了该action继承自自己定义的基础action,而class采用的registerAction是由spring产生的 –>
    <package name=”register” extends=”struts-default”>
        <action name=”register” class=”registerAction” method=”addUser”>
            <!– 注册成功 –>
            <result name=”success”>success.jsp</result>
            <!– 注册失败 –>
            <result name=”input”>error.jsp</result>
        </action>
        <action name=”login” class=”registerAction” method=”loginUser”>
            <!– 注册成功 –>
            <result name=”success”>success.jsp</result>
            <!– 注册失败 –>
            <result name=”error”>error.jsp</result>        
        </action>
    </package>
</struts>

这样strust的配置大致就完成了。 

第四步:配置ibatis的相关配置文件,主要是jdbc.propertiesSqlMapConfig.xml以及User.xml的配置,jdbc.properties主要用于配置数据库的数据源参数,会在加载spring的时候自动初始化,ibatis数据源的配置到时可以托管给spring初始化,所以这里就不细讲了。SqlMapConfig.xml主要是配置ibatis的配置文件的位置,User.xml则用于编写相关的数据库语句等,配置大致如下:

jdbc.properties:

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jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/userinfo
jdbc.user=root
jdbc.password=123456
jdbc.minPoolSize=5
jdbc.maxPoolSize=20
jdbc.maxIdleTime=1800
jdbc.acquireIncrement=5
jdbc.maxStatements=50
jdbc.initialPoolSize=10
jdbc.idleConnectionTestPeriod=1800
jdbc.acquireRetryAttempts=30

详细的参数含义在spring的配置文件会提及,就不细说了。

SqlMapConfig.xml

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<?xml version=”1.0″ encoding=”UTF-8″ ?>
<!DOCTYPE sqlMapConfig PUBLIC”-//ibatis.apache.org//DTD SQL Map Config 2.0//EN”
“http://ibatis.apache.org/dtd/sql-map-config-2.dtd”>
<sqlMapConfig>
<!– 用户信息表 –>
<sqlMap resource=”com/broada/demo/dao/ibaties/map/User.xml” />
</sqlMapConfig>

User.xml:

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<?xml version=”1.0″ encoding=”UTF-8″ ?>
<!DOCTYPE sqlMap PUBLIC”-//ibatis.apache.org//DTD SQL Map 2.0//EN”     
“http://ibatis.apache.org/dtd/sql-map-2.dtd”>
<sqlMap>
    <typeAlias alias=”User” type=”com.broada.demo.entity.User” />
    <!– 保存注册信息 –>
    <insert id=”insertUser” parameterClass=”User”>
        insert into
        user (name,password,username,address)values(#name#,#password#,#username#,#address#)
    </insert>
     
    <select id=”selsectUser” parameterClass=”java.lang.String” resultClass=”User”>
        select * from user
        where name = #name#;
    </select>
</sqlMap>

这样,ibatis的配置大致就完成。

第五步:配置spring的相关配置文件,主要是整合ibatis以及strust中用到的bean,需要配置web.xml以及applicationContext-web.xml两个配置文件:

web.xml:

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<listener>
        <!– 这个就是今后用到的WebApplicationUtilContent –>
        <listener-class>
            org.springframework.web.context.ContextLoaderListener
        </listener-class>
    </listener>
    <!– springframework config files –>
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <!– 把spring的配置文件放到了/WEB-INF/下的springframework包里,方便统一管理,命名规则是以applicationContent-开头的xml文件,初始化时会自动搜索所有符合规则的配置文件 –>
        <param-value>
            /WEB-INF/spring/applicationContext-*.xml
        </param-value>
</context-param>

applicationContext-web.xml:

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<?xml version=”1.0″ encoding=”UTF-8″?>
<beans xmlns=”http://www.springframework.org/schema/beans”
    xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance”
    xsi:schemaLocation=”http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd”>
    <!– 配置数据源,连接池采用的是c3p0,具体各参数代表意义参看c3p0自带的doc,非常详细。 –>
    <bean id=”dataSource”
       class=”com.mchange.v2.c3p0.ComboPooledDataSource”
        destroy-method=”close”>
        <property name=”driverClass” value=”${jdbc.driverClass}” />
        <property name=”jdbcUrl” value=”${jdbc.url}” />
        <property name=”user” value=”${jdbc.user}” />
        <property name=”password” value=”${jdbc.password}” />
        <property name=”minPoolSize” value=”${jdbc.minPoolSize}” />
        <property name=”maxPoolSize” value=”${jdbc.maxPoolSize}” />
        <property name=”maxIdleTime” value=”${jdbc.maxIdleTime}” />
        <property name=”acquireIncrement”
            value=”${jdbc.acquireIncrement}” />
        <property name=”maxStatements” value=”${jdbc.maxStatements}” />
        <property name=”initialPoolSize”
            value=”${jdbc.initialPoolSize}” />
        <property name=”idleConnectionTestPeriod”
            value=”${jdbc.idleConnectionTestPeriod}” />
        <property name=”acquireRetryAttempts”
            value=”${jdbc.acquireRetryAttempts}” />
    </bean>
 
     
   <!– 上面的数据源的value值用的是表达式,原因就在这里,这将配置文件放到了iBatis目录下,也就是jdbc.properties,设置了c3p0的各项参数 –>
    <bean id=”propertyConfig”
       class=”org.springframework.beans.factory.config.PropertyPlaceholderConfigurer”>
        <property name=”location”>
            <value>/WEB-INF/ibatis/jdbc.properties</value>
        </property>
    </bean>
     
    <!– 配置iBatis的sqlMapClient,这里当然是交给了spring去处理,其中,将SqlMapConfig文件放到了WEB-INF的iBatis目录下,也是便于管理 –>
    <bean id=”sqlMapClient”
       class=”org.springframework.orm.ibatis.SqlMapClientFactoryBean”>
        <property name=”configLocation”>
            <value>/WEB-INF/ibatis/SqlMapConfig.xml</value>
        </property>
        <!– 这里使用的数据源就是上面配置的数据源 –>
        <property name=”dataSource”>
            <ref bean=”dataSource” />
        </property>
    </bean>
 
    <bean id=”userdaoId”  class=”com.broada.demo.daoImpl.UserDaoImpl”>
        <property name=”sqlMapClient” ref=”sqlMapClient”></property>
    </bean>
      
    <bean id=”userDaoServiceId” class=”com.broada.demo.serviceImpl.UserDaoServiceImpl”>
      <property name=”userdao” ref=”userdaoId”>
    </property>
    </bean>
     <!– 用户注册action–>
    <bean id=”registerAction” name=”registerAction”  class=”com.broada.demo.action.RegisterAction” scope=”prototype”>      
      <property name=”userdaoServiceInter” ref=”userDaoServiceId”></property>
    </bean>
     
     
</beans>

这样,ssi框架的大致配置就完成了。 

最后编写相关的dao层,service层,action层以及jsp等等,我就不详细说明了,直接上相关代码:

RegisterAction.java:

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packagecom.broada.demo.action;
 
/**
 * @author smm
 */
 
importcom.broada.demo.entity.User;
importcom.broada.demo.service.UserDaoServiceInter;
importcom.opensymphony.xwork2.ActionSupport;
 
publicclassRegisterActionextends ActionSupport {
     
    private staticfinallongserialVersionUID = 1L;
     
privateUserDaoServiceInter userdaoServiceInter;   
 
    public UserDaoServiceInter getUserdaoServiceInter() {
        return userdaoServiceInter;
    }
 
    public voidsetUserdaoServiceInter(UserDaoServiceInter userdaoServiceInter) {
        this.userdaoServiceInter = userdaoServiceInter;
    }
 
    private String name;   //用户名
    private String password;   //密码
    private String username;   //昵称
    private String address;    //地址
 
    public String getUsername() {
        return username;
    }
 
    public voidsetUsername(String username) {
        this.username = username;
    }
 
    public String getAddress() {
        return address;
    }
 
    public voidsetAddress(String address) {
        this.address = address;
    }
 
    public String getName() {
        return name;
    }
 
    public voidsetName(String name) {
        this.name = name;
    }
 
    public String getPassword() {
        return password;
    }
 
    public voidsetPassword(String password) {
        this.password = password;
    }
 
    public String addUser() {
        System.out.println(“添加成功!”);
        User user =new User();
         
        String name =this.name;
        String password =this.password;
        String username =this.username;
        String address =this.address;
         
        user.setName(name);
        user.setPassword(password);
        user.setUsername(username);
        user.setAddress(address);
         
        boolean b = userdaoServiceInter.insertUser(user);
         
        if (b==true) {
            return SUCCESS;
        }else
            return INPUT;
    }
     
    public String loginUser(){
        System.out.println(“登陆=======”);
         
        String name =this.name;
        String password =this.password;
         
        User user = userdaoServiceInter.querybyname(name);
         
        if(user !=null && password.equals(user.getPassword())){
            return SUCCESS;
        }else
            return ERROR;
    }
}

UserDao.java

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packagecom.broada.demo.dao;
 
/**
 * @author smm
 */
 
importjava.util.List;
 
importcom.broada.demo.entity.User;
 
publicinterfaceUserDao {
     
    /**
     * 用户注册
     * @param user
     * @return
     */
     
    public booleaninsertUser(User user);
     
    /**
     * 根据用户名获取用户信息
     * @param name
     * @return
     */
     
    public User queryByname(String name);  
}

UserDaoImpl.java

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packagecom.broada.demo.daoImpl;
/**
 * @author smm
 */
importorg.springframework.orm.ibatis.support.SqlMapClientDaoSupport;
 
importcom.broada.demo.dao.UserDao;
importcom.broada.demo.entity.User;
 
publicclassUserDaoImplextends SqlMapClientDaoSupportimplements UserDao{
 
 
 
    @Override
    public booleaninsertUser(User user) {
        try {
            getSqlMapClientTemplate().insert(“insertUser”, user);
            return true;
        }catch (Exception e) {
            e.printStackTrace();
            return false;
        }  
    }
 
    @Override
    public User queryByname(String name) {
        // TODO Auto-generated method stub
        try {
            User user =(User) getSqlMapClientTemplate().queryForObject(“selsectUser”, name);
            return user;
        }catch (Exception e) {
            e.printStackTrace();
            return null;
        }      
    }
     
}

UserDaoServiceInter.java

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packagecom.broada.demo.service;
 
/**
 * @author smm
 */
 
importcom.broada.demo.entity.User;
 
publicinterfaceUserDaoServiceInter {
     
    /**
     * 用户注册服务接口
     * @param user
     * @return
     */
     
    public booleaninsertUser(User user);
     
    /**
     * 根据用户名获取用户信息接口
     * @param name
     * @return
     */
     
    public User querybyname(String name);
}

UserDaoServiceImpl.java

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packagecom.broada.demo.serviceImpl;
 
/**
 * @author smm
 */
 
importcom.broada.demo.dao.UserDao;
importcom.broada.demo.entity.User;
importcom.broada.demo.service.UserDaoServiceInter;
 
publicclassUserDaoServiceImplimplements UserDaoServiceInter {
 
    private UserDao userdao;
    public UserDao getUserdao() {
        return userdao;
    }
    public voidsetUserdao(UserDao userdao) {
        this.userdao = userdao;
    }
    @Override
    public booleaninsertUser(User user) {
        return userdao.insertUser(user);
    }
    @Override
    public User querybyname(String name) {
        // TODO Auto-generated method stub
        return userdao.queryByname(name);
    }
 
}

Index.jsp

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<%@ page language=”java” contentType=”text/html; charset=utf8″
    pageEncoding=”utf8″%>
    <%@ taglib prefix=”s” uri=”/struts-tags”%>
<!DOCTYPE html PUBLIC”-//W3C//DTD HTML 4.01 Transitional//EN” “http://www.w3.org/TR/html4/loose.dtd”>
<html>
<head>
<meta http-equiv=”Content-Type” content=”text/html; charset=utf8″>
<link rel=”stylesheet” type=”text/css” href=”css/ext-all.css” />
<link rel=”stylesheet” type=”text/css”
    href=”css/ext-theme-classic-all.css” />
<script type=”text/javascript” src=”js/ext-all.js”></script>
 
 
<title>用户登陆</title>
<script type=”text/javascript”>
Ext.onReady(function(){
        initPanel();    
    });
     
    initPanel=function(){
         var formPanel =new Ext.FormPanel({
                id:’loginPanel’,
                labelWidth:75,
                frame:true,
                bodyStyle:’margin:0 auto’,
                width:350,
                defaults: {width:250},
                defaultType:’textfield’,
                items: [{id:’username’,fieldLabel:’用户名’,name:’name’,allowBlank:false,blankText:’账号不能为空’},
               {id:’password’, fieldLabel:’密 码’,name:’password’,inputType:’password’,allowBlank:false,blankText:’密码不能为空’}]
                     });
        var win =new Ext.Window({  
               title:’登陆界面’,
               width:380,
               autoHeight:’true’,
               resizable:false,
               modal:true,
               closeAction:’hide’,
               buttonAlign:’center’,
               items:formPanel,
               buttons:[{text:’登陆’,handler: function(){land();}},
                        {text:’重置’,handler: function(){
                           Ext.getCmp(‘username’).setValue(“”);
                           Ext.getCmp(‘password’).setValue(“”);
                           }},{text:’注册’,handler: function(){register();}}]
                  });
                          
        win.show();
    };
     
    var win1;
     
    register = function(){ 
         
        var registerPanel =new Ext.FormPanel({
            id:’registerPanel’,
            labelWidth:75,
            frame:true,
            bodyStyle:’margin:0 auto’,
            width:350,
            defaults: {width:250},
            defaultType:’textfield’,
            items: [{id:’registername’,fieldLabel:’用户名’,name:’name1′,allowBlank:false,blankText:’账号不能为空’},
           {id:’registerpassword’, fieldLabel:’登陆密 码’,name:’password1′,inputType:’password’,allowBlank:false,blankText:’密码不能为空’},
           {id:’registerpassword2′, fieldLabel:’密码确认’,name:’password2′,inputType:’password’,allowBlank:false,blankText:’密码不能为空’},
           {id:’nichen’,fieldLabel:’昵称’,name:’nichen1′},
           {id:’address’,fieldLabel:’地址’,name:’address1′}]
                 });
         
        win1 =new Ext.Window({  
               title:’注册界面’,
               width:380,
               autoHeight:’true’,
               resizable:false,
               modal:true,
               buttonAlign:’center’,
               items:registerPanel,
               buttons:[{text:’提交’,handler: function(){login();}},
                        {text:’取消’,handler: function(){win1.close();}}]
                  });
                          
        win1.show();
    };
     
    login=function(){
        var name = Ext.getCmp(‘registername’).getValue();
        var password = Ext.getCmp(‘registerpassword’).getValue();
        var password2 = Ext.getCmp(‘registerpassword2’).getValue();
        var nichen = Ext.getCmp(‘nichen’).getValue();
        var address = Ext.getCmp(‘address’).getValue();
         
        if(name==” “|| password==” “ || password2==””){
            Ext.MessageBox.alert(‘提示’,’账号或密码不能为空!’);
        }
        else if(password != password2){
            Ext.MessageBox.alert(‘提示’,’两次密码输入不一致!’);
        }else{
         Ext.Ajax.request({
             url:”<s:url value=’/register.action’/>”,
             method:’post’,
            params:{
                name:name,
                password:password,
                username:nichen,
                address:address
            },
             success: function (response, options) {
                Ext.MessageBox.alert(‘提示’,’注册成功’,function(e){
                    if(e ==”ok”){
                        win1.close();
                    }
                 });
                 
             },
             failure: function (response, options) {
                 Ext.MessageBox.alert(‘注册失败’,’请检查您的注册信息!’);
             }
         });
        }
    };
     
    land=function(){
        var name = Ext.getCmp(‘username’).getValue();
        var password = Ext.getCmp(‘password’).getValue();
         
         
        if(name ==” “ || password ==””){
             Ext.MessageBox.alert(‘提示’,’账号或密码不能为空!’);
        }
        else{
         Ext.Ajax.request({
             url:”<s:url value=’/login.action’/>”,
             method:’post’,
            params:{
                name:name,
                password:password              
            },
             success: function (response, options) {
                Ext.MessageBox.alert(‘提示’,’登陆成功!’);
                 
             },
             failure: function (response, options) {
                 Ext.MessageBox.alert(‘登陆失败’,’您输入的账号或密码错误!’);
             }
         });
        }
    };
     
</script>
 
</head>
<body>
     
</body>
</html>

大致的步骤就是这样,个人觉得ssi的框架还是蛮不错的,起码定制和自由度都比较好。

 

SSI框架学习总结:等您坐沙发呢!

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