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