SSI2整合，spring和xfire 整合之后，加入Struts2 上传下载功能

SSI的整合和Spring跟XFIRE整合之后，接下来带来是的上传下载：下面直接加入上传下载功能。

项目目录：

下面是 源码及其相关注释：

BaseAction.java      (别的Action继承此类可以写多任务处理了。) 

package com.unite.util;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.struts2.interceptor.ServletResponseAware;

import com.opensymphony.xwork2.ActionSupport;

public class BaseAction extends ActionSupport implements ServletRequestAware,
  ServletResponseAware {
 
 protected HttpServletRequest request;
 protected HttpServletResponse response;
 protected HttpSession session;

 public void setServletRequest(HttpServletRequest arg0) {
  // TODO Auto-generated method stub
  this.request = arg0;
  this.session = this.request.getSession();
 }

 public void setServletResponse(HttpServletResponse arg0) {
  // TODO Auto-generated method stub
  this.response = arg0;
 }

}

uploadAction.java 

 package com.unite.action;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.util.Date;

import org.apache.struts2.ServletActionContext;

import com.unite.util.BaseAction;

public class uploadAction extends BaseAction{

 private static final long serialVersionUID = 1L;
 
 private static final int BUFFER_SIZE =16*1024;
 
 private File myFile;
 private String contentType;
 private String fileName;
 private String imageFileName;
 private String caption;
    //下载文件原始存放路径 
    private final static String DOWNLOADFILEPATH="/UploadImages/"; 
    //文件名参数变量 
    private String downfileName;
    private String downloadChineseFileName;
    private InputStream downloadFile;
 
 public String execute() throws Exception {
  imageFileName = new Date().getTime()+getExtention(fileName);
  File uploadFile = new File(ServletActionContext.getServletContext().getRealPath("/UploadImages"));
  if(!uploadFile.exists())
   uploadFile.mkdir();
  File imageFile = new File(uploadFile,imageFileName);
  copy(myFile, imageFile);
  return super.execute();
 }

 public static void copy(File src,File dst){
  try{
   InputStream inputStream = null;
   OutputStream outputStream = null;
   try{
    inputStream = new BufferedInputStream(new FileInputStream(src), BUFFER_SIZE);
    outputStream = new BufferedOutputStream(new FileOutputStream(dst), BUFFER_SIZE);
    byte[] bs = new byte[BUFFER_SIZE];
    while(inputStream.read(bs)>0){
     outputStream.write(bs);
    }
   }finally{
    if(inputStream!=null){
     inputStream.close();
    }
    if(outputStream!=null){
     outputStream.close();
    }
   }
  }catch(Exception exception) {
   exception.printStackTrace();
  }
 }
 //下载
 public String download(){ 
  
  downfileName =  request.getParameter("downfilename");
  System.out.println(downfileName);
  
     //从下载文件原始存放路径读取得到文件输出流  
  downloadFile = ServletActionContext.getServletContext().getResourceAsStream(DOWNLOADFILEPATH+downfileName); 
     //如果下载文件名为中文，进行字符编码转换 
        try { 
            downloadChineseFileName = new String(downfileName.getBytes(), "ISO8859-1"); 
        } catch (UnsupportedEncodingException e) { 
            e.printStackTrace(); 
        } 
  return SUCCESS;
 }
 
 //获得文件后缀
 public static String getExtention(String fileName){
  int pos = fileName.lastIndexOf(".");
  return fileName.substring(pos);
 }

    public void setMyFileContentType(String contentType)  {
        this.setContentType(contentType);
   }
  
    public void setMyFileFileName(String fileName)  {
        this .fileName = fileName;
   }
      
    public void setMyFile(File myFile)  {
        this .myFile = myFile;
   }
  
    public String getImageFileName()  {
        return imageFileName;
   }
  
    public String getCaption()  {
        return caption;
   }

     public void setCaption(String caption)  {
        this .caption = caption;
   }

 public void setContentType(String contentType) {
  this.contentType = contentType;
 }

 public String getContentType() {
  return contentType;
 }

 public String getDownfileName() {
  return downfileName;
 }

 public void setDownfileName(String downfileName) {
  this.downfileName = downfileName;
 }

 public String getDownloadChineseFileName() {
  return downloadChineseFileName;
 }

 public void setDownloadChineseFileName(String downloadChineseFileName) {
  this.downloadChineseFileName = downloadChineseFileName;
 }

 public InputStream getDownloadFile() {
  return downloadFile;
 }

 public void setDownloadFile(InputStream downloadFile) {
  this.downloadFile = downloadFile;
 }

}
upload.jsp

<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>

<%@ taglib prefix="s" uri = "/struts-tags" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
   
  </head>
 
  <body>
 <s:form  action ="fileUpload.do" method ="POST" enctype ="multipart/form-data" >
        <s:file name ="myFile" label ="Image File" />
        <s:textfield name ="caption" label ="Caption" />       
        <s:submit />
    </s:form >
  </body>
</html>

uploadSucc.jsp

 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<%@ taglib prefix="s" uri = "/struts-tags" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
   
 <SCRIPT type="text/javascript">
  function down(){
   var downfilename= document.getElementByIdx_xx_x("downfilename").value;
   var url=encodeURI("download.do?downfilename="+downfilename);
   document.getElementByIdx_xx_x("aa").innerHTML ="<a href='"+url+"' rel='#overlay' style='text-decoration:none'>下载</a>";
   
  }
 </SCRIPT>
  </head>
 
  <body onload="down()">
 <div style ="padding: 3px; border: solid 1px #cccccc; text-align: center" >
        <img src ='UploadImages/<s:property value ="imageFileName" />' />
        <br />
        <s:property value ="imageFileName" />
        <br/>
        <input type="text" id="downfilename" value="<s:property value ='imageFileName' />">
        <div id="aa"></div>
  
    </div >

  </body>
</html>

struct.xml

 <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
<package name="default"  extends="struts-default">
 
 <action name="User_LogAction" class="com.unite.action.User_LogAction">
   <result name = "ok">/upload.jsp</result>
   <result name = "no">/index.jsp</result>
   <result name = "login">/index.jsp</result>
 </action>
 
  <!-- 上传下载action配置 -->  
   <action name="fileUpload" class="com.unite.action.uploadAction">
   <interceptor-ref name="fileUpload">
    <param name="allowedTypes">
     image/bmp,image/png,image/gif,image/pjpeg
    </param>
   </interceptor-ref>
   <interceptor-ref name="defaultStack" />
   <result>/uploadSucc.jsp</result>
  </action>
  <!-- down -->
  <action name="download" class="com.unite.action.uploadAction" method="download">
         <result name="success" type="stream"> 
             <!-- 下载文件类型定义 --> 
             <param name="contentType">
              image/bmp,image/png,image/gif,image/pjpeg
    </param> 
             <!-- 下载文件处理方法 --> 
             <param name="contentDisposition"> 
                 attachment;filename="${downloadChineseFileName}" 
             </param> 
             <!-- 下载文件输出流定义 --> 
             <param name="inputName">downloadFile</param> 
         </result>
  </action>  
  
</package>

</struts>

 别忘了在根目录下 建一个文件夹UploadImages，放上传的图片。

 运行下 可以了。呵呵