SSH笔记四 整合struts2

SSH笔记四 整合struts2

           就好像骑自行车去远行，最开始的时候总是激情澎湃，到了路上越走越发现只是在苦苦的支撑，不过等你走完全程，看那些凝固在照片中的风景与记忆，你只有一种感觉，满足。

          SSH笔记目录

          SSH笔记一  用maven构建项目(源码下载ssim1.rar)
        SSH笔记二  整合hibernate和spring（源码下载ssim2-maven.rar）
        SSH笔记三  反向生成DAO  优化开发目录（源码下载ssim3-dao.rar）
        SSH笔记四  整合struts2（源码下载ssim4-struts2.rar）
        SSH笔记五  整合Tiles2（源码下载ssim5-tiles2.rar）

        今天我们的任务是要把struts2整合到项目之中，当然先看一下完成之后我们的项目是什么样子，如图

         1.  在pom.xml中添加对struts2的依赖，

< project  xmlns ="http://maven.apache.org/POM/4.0.0"  xmlns:xsi ="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation ="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd" >
   < modelVersion > 4.0.0 </ modelVersion >
   < groupId > net.selitech.ssim </ groupId >
   < artifactId > ssim </ artifactId >
   < packaging > war </ packaging >
   < version > 1.0-SNAPSHOT </ version >
   < name > SSIM Maven Webapp </ name >
   < description >  Web application </ description >
  
   < build >
         < finalName > ${artifactId} </ finalName >
         < plugins >
             < plugin >
                 < groupId > org.apache.maven.plugins </ groupId >
                 < artifactId > maven-compiler-plugin </ artifactId >
                 < configuration >
                     < source > 1.6 </ source >
                     < target > 1.6 </ target >
                     < encoding > UTF8 </ encoding >
                 </ configuration >
             </ plugin >
             < plugin >
                 < groupId > org.apache.maven.plugins </ groupId >
                 < artifactId > maven-surefire-plugin </ artifactId >
                 < version > 2.4.2 </ version >
                 < configuration >
                     < skipTests > true </ skipTests >
                 </ configuration >
             </ plugin >
             < plugin >
                 < artifactId > maven-war-plugin </ artifactId >
                 < configuration >
                     < webappDirectory > ${basedir}/src/main/webapp </ webappDirectory >
                     < warSourceDirectory > ${basedir}/src/main/webapp </ warSourceDirectory >
                 </ configuration >
             </ plugin >
         </ plugins >
     </ build >
    
     < dependencies >
         < dependency >
             < groupId > javax.activation </ groupId >
             < artifactId > activation </ artifactId >
             < version > 1.0.2 </ version >
             < scope > provided </ scope >
         </ dependency >
         < dependency >
             < groupId > javax.transaction </ groupId >
             < artifactId > jta </ artifactId >
             < version > 1.0.1B </ version >
         </ dependency >
         < dependency >
             < groupId > javax.servlet </ groupId >
             < artifactId > servlet-api </ artifactId >
             < version > 2.4 </ version >
             < scope > provided </ scope >
         </ dependency >
         < dependency >
             < groupId > javax.servlet.jsp </ groupId >
             < artifactId > jsp-api </ artifactId >
             < version > 2.0 </ version >
             < scope > provided </ scope >
         </ dependency >
         < dependency >
             < groupId > javax.servlet </ groupId >
             < artifactId > jstl </ artifactId >
             < version > 1.1.2 </ version >
         </ dependency >
         < dependency >
             < groupId > taglibs </ groupId >
             < artifactId > standard </ artifactId >
             < version > 1.1.2 </ version >
         </ dependency >
        
         <!--  Test Case 依赖  -->
         < dependency >
             < groupId > junit </ groupId >
             < artifactId > junit </ artifactId >
             < version > 4.5 </ version >
             < scope > test </ scope >
         </ dependency >
        
         <!--  spring依赖  -->
         < dependency >
             < groupId > org.springframework </ groupId >
             < artifactId > spring-jdbc </ artifactId >
             < version > 2.5.6 </ version >
         </ dependency >
         < dependency >
             < groupId > org.springframework </ groupId >
             < artifactId > spring-orm </ artifactId >
             < version > 2.5.6 </ version >
         </ dependency >
         < dependency >
             < groupId > org.springframework </ groupId >
             < artifactId > spring-dao </ artifactId >
             < version > 2.0.4 </ version >
         </ dependency >
         < dependency >
             < groupId > log4j </ groupId >
             < artifactId > log4j </ artifactId >
             < version > 1.2.15 </ version >
         </ dependency >
        
         <!--  mysql依赖  -->
         < dependency >
             < groupId > mysql </ groupId >
             < artifactId > mysql-connector-java </ artifactId >
             < version > 5.0.0 </ version >
         </ dependency >
        
         <!--  hibernate依赖  -->
         < dependency >
             < groupId > org.hibernate </ groupId >
             < artifactId > hibernate </ artifactId >
             < version > 3.2.6.ga </ version >
         </ dependency >
         < dependency >
             < groupId > commons-dbcp </ groupId >
             < artifactId > commons-dbcp </ artifactId >
             < version > 1.2 </ version >
         </ dependency >
         < dependency >
             < groupId > dom4j </ groupId >
             < artifactId > dom4j </ artifactId >
             < version > 1.6.1 </ version >
         </ dependency >
         < dependency >
             < groupId > cglib </ groupId >
             < artifactId > cglib </ artifactId >
             < version > 2.1_3 </ version >
         </ dependency >
         < dependency >
             < groupId > antlr </ groupId >
             < artifactId > antlr </ artifactId >
             < version > 2.7.6 </ version >
         </ dependency >
         <!--  struts2依赖  -->
         < dependency >  
             < groupId > org.apache.struts </ groupId >  
             < artifactId > struts2-core </ artifactId >  
             < version > 2.1.6 </ version >  
         </ dependency >  
         < dependency >  
             < groupId > org.apache.struts </ groupId >  
             < artifactId > struts2-spring-plugin </ artifactId >  
             < version > 2.1.6 </ version >  
         </ dependency >  
            
     </ dependencies >
    
</ project >

        2.  配置web.xml，添加struts2的过滤器

<! DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd"  >

< web-app >
< context-param >
   < param-name > contextConfigLocation </ param-name >
   < param-value > /WEB-INF/classes/application-context.xml </ param-value >
  </ context-param >
   <!-- struts过滤器  -->
  < filter >
   < filter-name > struts2 </ filter-name >
   < filter-class > org.apache.struts2.dispatcher.FilterDispatcher </ filter-class >
  </ filter >
  < filter-mapping >
   < filter-name > struts2 </ filter-name >
   < url-pattern > *.action </ url-pattern >
  </ filter-mapping >
  <!--  加载spring配置文件  -->
  < listener >
   < listener-class > org.springframework.web.context.ContextLoaderListener </ listener-class >
  </ listener >
  <!--  设置欢迎页  -->
  < welcome-file-list >
   < welcome-file > login.jsp </ welcome-file >
  </ welcome-file-list >
</ web-app >

        3.  添加struts.xml配置文件

<? 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.enable.DynamicMethodInvocation"  value ="false"   />
     < constant  name ="struts.devMode"  value ="false"   />
     < constant  name ="struts.objectFactory"  value ="spring"   />
    
     < include  file ="struts/user.xml" ></ include >
       
</ struts >

        4.  配置 user.xml

<? 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 >  
    
     < package  name ="user"  namespace ="/user"  extends ="struts-default" >     
         < action  name ="login"  class ="userAction"  method ="login" >
             < result  name ="input" > /login.jsp </ result >
             < result  name ="success"  type ="redirect" > /welcome.jsp </ result >
         </ action >  
     </ package >
    
    
</ struts >

        5.  添加UserAction和UserManager类

package  net.selitech.ssim.web.user;

import  java.util.Map;

import  net.selitech.ssim.dao.SsimUser;
import  net.selitech.ssim.user.UserManager;

import  com.opensymphony.xwork2.ActionContext;
import  com.opensymphony.xwork2.ActionSupport;

/**
 *  @author : juxuejian
 * @filename: UserAction.java
 * @date: Aug 10, 2009 , 11:10:47 PM
 * @description :
  */
public   class  UserAction  extends  ActionSupport{
    SsimUser user;
    UserManager userManager;
    
     public  String login(){
         if (getSession( " loginedUser " ) != null )  return  SUCCESS;
        
         try  {
             if  (getUserManager().checkLogin(user.getUserEmail(), user.getUserPassword())) {
                
                 //  更新登录次数
                user  =  getUserManager().findByEmail(user.getUserEmail());
                 //  修正手工插入数据后导致int为null的问题
                
                
                 //  将登录用户信息存入 session
                setSession( " username " , user.getUserRealname());
                setSession( " loginedUser " , user);
                
                
                 return  SUCCESS;
            }  else  {
            }
        } catch  (Exception e) {
             //  TODO Auto-generated catch block
            e.printStackTrace();
        }
         return  INPUT;
    }
    
     public  SsimUser getSessionLoginedUser() {
        SsimUser currentUser  =  (SsimUser) getSession( " loginedUser " );
         return  currentUser;
    }
    
     /**
     * 读取 session 中的属性值
     *  @param  name
     *  @return
      */
     public   static  Object getSession(String name) {
        ActionContext ctx  =  ActionContext.getContext();
        Map session  =  ctx.getSession();

         return  session.get(name);
    }
    
     /**
     * 向 session 设置属性值
     *  @param  name
     *  @param  value
      */
     public   static   void  setSession(Object name, Object value) {
        ActionContext ctx  =  ActionContext.getContext();
        Map session  =  ctx.getSession();
        session.put(name, value);
    }

     public  UserManager getUserManager() {
         return  userManager;
    }

     public   void  setUserManager(UserManager userManager) {
         this .userManager  =  userManager;
    }

    
}

package  net.selitech.ssim.user;

import  java.util.List;

import  net.selitech.ssim.dao.SsimUser;
import  net.selitech.ssim.dao.SsimUserDAO;

/**
 *  @author : juxuejian
 * @filename: UserManager.java
 * @date: Aug 10, 2009 , 11:10:29 PM
 * @description :
  */
public   class  UserManager {
    SsimUserDAO ssimUserDAO;
    
     public   boolean  checkLogin(String userEmail,String password)  throws  Exception{
         //  是否存在给定用户
        SsimUser user  =  findByEmail(userEmail);
         if  (user  ==   null ) {
             // 用户不存在
             return   false ;
        }
         if (user  !=   null   &&  user.getUserPassword()  !=    null   &&  user.getUserPassword().equals(password)) {
             return   true ;
        }
         return   false ;
    }
    
    @SuppressWarnings( " unchecked " )
     public  SsimUser findByEmail(String userEmail){
        List < SsimUser >  users = ssimUserDAO.findByUserEmail(userEmail);
         if (users  !=   null   &&  users.size()  >   0 ) {
              return  users.get( 0 );
         }         
          return   null ;
    }

     public  SsimUserDAO getSsimUserDAO() {
         return  ssimUserDAO;
    }

     public   void  setSsimUserDAO(SsimUserDAO ssimUserDAO) {
         this .ssimUserDAO  =  ssimUserDAO;
    }

}

        6.  在Spring的配置文件application-conten.xml中注册action和manager

<? 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-2.5.xsd" >

     < import  resource ="beans/data-source.xml"   />
     < import  resource ="beans/ssim-dao.xml"   />
     < import  resource ="beans/ssim-user.xml"   />
    
     < bean  id ="configurator"  class ="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer" >
         < property  name ="locations" >
             < list >
             < value > /WEB-INF/ssimdb-config.properties </ value >
             </ list >
         </ property >
     </ bean >
    
</ beans >

ssim-user.xml

<? 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-2.5.xsd" >
    
     < bean  id ="userManager"  class ="net.selitech.ssim.user.UserManager" >
         < property  name ="ssimUserDAO" >
             < ref  bean ="SsimUserDAO"   />
         </ property >
     </ bean >
     < bean  id ="userAction"  class ="net.selitech.ssim.web.user.UserAction" >
         < property  name ="userManager" >
             < ref  bean ="userManager" />
         </ property >
     </ bean >
</ beans >

        7. 添加login.jsp和 welcome.jsp

<% @ page language = " java "  import = " java.util.* "  pageEncoding = " UTF-8 " %>
<%
String  path  =  request.getContextPath();
String  basePath  =  request.getScheme() + " :// " + request.getServerName() + " : " + request.getServerPort() + path + " / " ;
%>

<! DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd" >
< html >
   < head >
     < base  href ="<%=basePath%>" >
    
     < title > SSIM </ title >
    
     < SCRIPT  language =javascript >
     function  check() {
         var  s  =   "" ;
         var  n  =  document.getElementById( " user.userEmail " ).value  ?   null  : s +=   " 用户名不能为空\n " ;
         var  p  =  document.getElementById( " user.userPassword " ).value  ?   null  : s += " 密码不能为空\n " ;    
         if (n  ||  p){
            alert(s);
             return   false ;
        } else {
            document.userLoginForm.submit();
        }
    }
</ SCRIPT >

   </ head >
  
   < body >
   < form  name ="userLoginForm"  action ="<%=path %>/user/login.action"  method =post >
   < table >
   < tr >
   < td > 用户名： < input  id ="user.userEmail"  type ="text"  name ="user.userEmail"  size ="15" /></ td ></ tr >
   < tr >< td > 密 &nbsp;&nbsp;&nbsp;&nbsp; 码： < input  id ="user.userPassword"  type ="password"  name ="user.userPassword"  size ="16" /></ td ></ tr >
   < tr >< td >< input  type ="submit"  value ="登录"  onclick ="return check();" /></ td ></ tr >
   </ table >
   
    </ form >
   </ body >
</ html >

welcome.jsp

< html >
< body >
< h2 > 登录成功 </ h2 >
</ body >
</ html >

        如果你输入邮箱和密码，点击登录看到“登录成功”，那么恭喜你
        今天到此为止，下一次   SSH笔记五  整合Tiles2