jbos + struts1 + jsp 上传下载

原创于 2011-01-20 17:50:34 发布 · 109 阅读

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CC 4.0 BY-SA版权

文章标签：

#JSP #Struts #Apache #Servlet #SQL

这是一个用于项目信息模块的内容上传功能实现，主要涉及Struts框架、文件上传处理及数据库操作。

import java.io.File;

import java.io.FileOutputStream;

import java.io.OutputStream;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.log4j.Logger;

import org.apache.struts.action.Action;

import org.apache.struts.action.ActionForm;

import org.apache.struts.action.ActionForward;

import org.apache.struts.action.ActionMapping;

import org.apache.struts.upload.FormFile;

import com.hymake.wygl.shared.GetBusinessHome;

import com.hymake.wygl.shared.ShareModel;

import com.hymake.wygl.shared.business.XmxxBusiness;

import com.hymake.wygl.shared.business.XmxxBusinessHome;

/**

* @author Jan 14, 2011 项目信息模块内容上传临时管理规约附件（word） <br>

public class DoUploadItemAttachAction extends Action {

File fileContent;

static Logger logger = Logger.getLogger(ShareModel.class.getName());

public ActionForward execute(ActionMapping mapping, ActionForm form,

HttpServletRequest request, HttpServletResponse response)

throws Exception {

ItemAttachForm itemAttachForm = new ItemAttachForm();

itemAttachForm = (ItemAttachForm) form;

request.setAttribute("entId", itemAttachForm.getItem_id());

request.setAttribute("type", itemAttachForm.getType());

System.out.println("读取文件的URL: "+itemAttachForm.getFilePath());

System.out.println("服务器提交URL: "+request.getServletPath());

System.out.println("项目工程Name: "+request.getContextPath());

String path = request.getContextPath();

String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

System.out.println("网络地址："+basePath);

int MAX_FILE_SIZE =1024 * 1024 * 10;

XmxxBusinessHome xmxxBusinessHome;

XmxxBusiness xmxxBusiness;

OutputStream fos = null;

try {

FormFile formFile=itemAttachForm.getFileContent();

if(formFile.getFileSize() > MAX_FILE_SIZE){

request.setAttribute("err", "err");

return mapping.findForward("success");

}else{

if(formFile != null){

String dir = request.getSession(true).getServletContext().getRealPath("\\upload");

String dirs[] = dir.split("\\\\");

//文件存放的路径

String filePaht = dirs[0]+"/"+dirs[1]+"/"+dirs[2]+request.getContextPath()+"/"+itemAttachForm.getItem_id()+"/" ;

System.out.println("文件存放的地址："+filePaht);

File f = new File(filePaht);

if(!f.exists()){

f.mkdirs();

System.out.println("文件存放的目录："+filePaht+"创建成功!");

}

//去掉文件名的空格

String fileName = formFile.getFileName().trim().replaceAll(" ", "");

//去掉文件名存在的&字符，防止传参数出现错误

fileName = fileName.replaceAll("&", "");

fos = new FileOutputStream(filePaht+fileName);

fos.write(formFile.getFileData(),0,formFile.getFileSize());

fos.flush();

//开启连接

GetBusinessHome getBusinessHome = new GetBusinessHome();

xmxxBusinessHome = getBusinessHome.getXmxxBusinessHome();

xmxxBusiness = xmxxBusinessHome.create();

itemAttachForm.setFileName(fileName);

String sqlPath = dirs[2]+request.getContextPath()+"/"+itemAttachForm.getItem_id()+"/" +fileName;

itemAttachForm.setFilePath(sqlPath);

//保存相应的信息到数据苦中

xmxxBusiness.getDoUpload(itemAttachForm);

}

} catch (RuntimeException e) {

e.printStackTrace();

}catch(Exception e){

e.printStackTrace();

}finally{

if(fos != null){

fos.close();

}

return mapping.findForward("success");

}

-----------jsp 上传查看的jsp --------

<%@ page language="java" import="java.util.*" pageEncoding="gbk"%>

<%@ page

import="java.io.*,java.util.*,javax.servlet.http.*,javax.servlet.*"%>

<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic"%>

<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean"%>

<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html"%>

<%@ page

import="java.sql.*,javax.naming.InitialContext,javax.sql.*,com.hymake.wygl.shared.DataModule.ItemAttachBean"%>

String path = request.getContextPath();

String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<title>上传临时管理规约</title>

</head>

request.setCharacterEncoding("gbk");

String entId = null;

String type = null;

if(request.getParameter("type") != null && request.getParameter("type").trim() !=""){

type = request.getParameter("type");

}else if(request.getAttribute("type") != null){

type = request.getAttribute("type").toString();

}

if (request.getParameter("entId") != null) {

entId = new String(request.getParameter("entId").getBytes("iso-8859-1"),"GBK").trim();

}else if (request.getAttribute("entId") != null) {

entId = request.getAttribute("entId").toString();

}

<body>

<div>

<label style="font: 15px">项目编号为：<%=entId%></label><br>

注意：为了保证信息的完整，上传的 <B>word</B> 文件名不能包含有

<B>&</B>符号!

</label>

</div>

<hr>

if(request.getAttribute("err")!= null && request.getAttribute("err").equals("err")){

<div>

<B>上传失败：上传的文件超过10M，请分成多个文件提交上传。</B>

</label>

</div>

}

<form action="<%=path%>/doUploadItemAttach.do" method="post"

enctype="multipart/form-data" onsubmit="return onSubmiFileContent();">

<table width="100%" border="0" cellpadding="0" cellspacing="0"

bgcolor="#FFFFFF">

<tr>

<table width="100%" border="0" cellpadding="4" cellspacing="0"

class="indiv">

临时管理规约(word):

</td>

<td>

</td>

</tr>

</table>

</td>

</tr>

</table>

</form>

<table width="100%" border="0" cellpadding="5" cellspacing="0"

bgcolor="#FFFFFF">

DataSource ds = null;

java.sql.Connection con=null;

Statement stmt = null;

String photoName ="";

String sql = "";

try{

String dir = request.getSession(true).getServletContext().getRealPath("\\upload");

String dirs[] = dir.split("\\\\");

//文件存放的路径

String filePaht = dirs[0]+"/"+dirs[1]+"/" ;

InitialContext initCtx = new InitialContext();

ds = (DataSource)initCtx.lookup("java:/MSSQLDS");

con=ds.getConnection();

sql = "SELECT * FROM item_attach where item_id='"+entId+"' and type='"+type+"'";

System.out.print(sql);

stmt = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);

ResultSet rs = stmt.executeQuery(sql);

while(rs.next()){

<tr>

<td>

<form name="goodform"

action="<%=path%>/ent/main/upload_attachDelete.jsp?entId=<%=entId%>&fileName=<%=new String(rs.getString("fileName").getBytes(),"gbk") %>&type=<%=type%>" method="post"

<tr>

<img alt="点击连接，单份下载浏览" src="<%=path%>/ent/main/images/icon02c.gif" width="70"

height="70" />

</td>

<a href="<%=path%>/uploadItemAttachFile.do?item_id=<%=entId%>&fileName=<%=new String(rs.getString("fileName").getBytes(),"gbk") %>&type=<%=type%>">

<%=new String(rs.getString("fileName").getBytes(),"gbk") %>

</a>

</td>

</tr>

</table>

</form>

</td>

</tr>

}

} catch (Exception e){

e.printStackTrace();

}

finally {

try{

stmt.close();

con.close();

}catch(Exception e){

System.out.print("不能关闭数据库连接" + e);

}

</table>

</body>

function onSubmiFileContent(){

var fileContentValue = document.getElementById("fileContentid").value;

if(fileContentValue == null || fileContentValue ==""){

alert("请浏览选择要上传的附件(word)!");

return false;

}

return true;

}

function proveDel(){

if(!confirm("删除将要从新上传，是否确定删除!")){

return false;

}

return true;

}

function fileURL(){

document.getElementById("filePathId").value = document.getElementById("fileContentid").value;

}

</script>

</html>

-------- 下载的 action-------

package com.hymake.wygl.ent.xmxx;

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 javax.servlet.ServletOutputStream;

import javax.servlet.ServletRequest;

import javax.servlet.ServletResponse;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.commons.beanutils.PropertyUtils;

import org.apache.struts.action.Action;

import org.apache.struts.action.ActionForm;

import org.apache.struts.action.ActionForward;

import org.apache.struts.action.ActionMapping;

import com.hymake.wygl.shared.DataModule.ItemAttachBean;

/**

* @author jianght

* Jan 20, 2011

* 读取附件信息

* <br>

public class UploadItemAttachFileAction extends Action {

@Override

public ActionForward execute(ActionMapping mapping, ActionForm form,

HttpServletRequest request, HttpServletResponse response)

throws Exception {

InputStream infile = null;

try {

ItemAttachForm itemAttachForm = new ItemAttachForm();

ItemAttachBean itemAttachBean = new ItemAttachBean();

itemAttachForm = (ItemAttachForm) form;

request.setAttribute("entId", itemAttachForm.getItem_id());

request.setAttribute("type", itemAttachForm.getType());

String fileName = new String (request.getParameter("fileName").getBytes("iso-8859-1"),"gbk");

itemAttachForm.setFileName(fileName);

PropertyUtils.copyProperties(itemAttachBean,form);

String filePaht =null;

filePaht = itemAttachBean.getDoUploadAttachFile();

String dir = request.getSession(true).getServletContext().getRealPath("\\upload");

String dirs[] = dir.split("\\\\");

filePaht = dirs[0]+"/"+dirs[1]+"/" + filePaht;

File file=new File(filePaht);

if(!file.exists()){

System.out.println(filePaht + " 文件不存在");

return null;

}

System.out.println("服务器存放的地址： "+ filePaht);

infile = new BufferedInputStream( new FileInputStream(file));

int srcFileSize = infile.available();

byte[] b = new byte[srcFileSize];

response.setContentType("application/msword");

fileName = new String(fileName.getBytes("gb2312"),"ISO_8859_1");

response.setHeader("content-disposition", "attachment;filename="+fileName);

response.setCharacterEncoding("gb2312");

while(infile.read(b) != -1){

response.getOutputStream().write(b);

}

} catch (RuntimeException e) {

e.printStackTrace();

}catch(Exception e){

e.printStackTrace();

}finally{

if ( null != infile) {

infile.close();

}

return mapping.findForward("success");

}

----------Bean 和Form

private String item_id; //项目编号

private String type; //类型

private String fileName; //文件名

private FormFile fileContent; //文件内容

private String filePath; //文件路径