教育网研究 下载 （上传本地路径进行本地下载，和上传文件的下载）

news/2024/7/7 15:40:07 标签: 教育, string, manager, stylesheet, upload, import

上传本地的路径,和上传
pp2up.jsp
<%@page contentType="text/html;charset=gb2312" import="java.util.*"%>
<%@ page import="com.pp.db.DBOperate"%>
<%@ page import="my.bean.*"%>
<%@ page import="com.jetsum.manager.*"%>
<html>
  <head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>我要上传</title>
<link href="../center/style/center_css.css" _fcksavedurl=""../center/style/center_css.css"" rel="stylesheet" type="text/css" />
<link href="../login/style/login_css.css" rel="stylesheet" type="text/css" />
<link href="upload_style.css" rel="stylesheet" type="text/css" />
<style type="text/css">
<!--
.STYLE4 {font-size: 14px; color: #FFFFFF; font-weight: bold; }
.STYLE5 {
 font-size: 12px;
 color: #000000;
}
.STYLE6 {
 font-size: 14px;
 font-weight: bold;
 color: #000000;
}
.STYLE7 {color: #FF0000}
-->
</style>


  </head>
 
  <body>
  <br/><br/>
 
  <%

    DBOperate dbo = new DBOperate();
    String hqltypefirst ="from Source_type where levels='0' and state='1' order by orders";
    dbo.setLength(1000);
    List typefirst = (List) dbo.findSQLHibernate(hqltypefirst, 1);
 
  manager manager1=new manager();
 if(session.getAttribute("manager")==null){
        out.println("<form name='frm1' style='display:none' method='post' action='/web/managere7kao2007back/index.jsp' target='_top'>");
     out.println("</form>");
        out.println("<script language='javascript'>");
           out.println("document.frm1.submit();");
           out.println("</script>");
 }else{
      manager1=(manager)session.getAttribute("manager");       
 }
 
 
 Picture pic = new Picture();
    String random = pic.getRandom();
    String encryRandom= pic.manage(random);
    session.setAttribute("get_attach",random);
 
 session.setAttribute("sessionNumsY","0");
 session.setAttribute("sessionNums","0");
 
    String hql = "from Source_type as type1 where type1.levels='0' and state='1' and leibie=4 order by type1.orders desc";
    List typelistFirst=(List)dbo.findSQLHibernate(hql,1); 
 
    String loginerror="";
    if(session.getAttribute("loginerror")!=null){
    loginerror=(String)session.getAttribute("loginerror");
    session.removeAttribute("loginerror");
    }
%>
  <script>
var secondidsize=new Array();;
var threesize=new Array();
//选择二级分类
function selectSecondType(s) {
    var a = document.getElementsByName("levelid"); 
 switch (a[s].value)
 {
  case'':
   var type_labels=new Array("-- 请选择 --");
   var type_values=new Array("");
   break;
<%
  for(int i = 0; i < typelistFirst.size(); i++)
  {
   Source_type typeone = (Source_type)typelistFirst.get(i);
   out.println("case'"+typeone.getId()+"':");
   //System.out.println("case'"+typeone.getId()+"':");
  //二级分类信息
   List typelistSecond=(List)dbo.findSQLHibernate("from Source_type as type1 where type1.levels='"+typeone.getId()+"' and state='1' order by type1.orders desc",1);
   out.println("var type_labels = new Array();");
   out.println("var type_values = new Array();");
   out.println("type_labels[0] = /"-- 请选择 --/";");
   out.println("type_values[0] = /"/";");
   out.println("secondidsize[s]="+typelistSecond.size());
   for(int j=0;j<typelistSecond.size();j++)
   {
    Source_type Type = (Source_type)typelistSecond.get(j);
    out.println("type_labels["+(j+1)+"] = /""+new String(Type.getTypename().getBytes("iso-8859-1"),"gb2312")+"/";");
    out.println("type_values["+(j+1)+"] = /""+Type.getId()+"/";");
   }
   out.println("break;");
  }
%>
 }
 var b = document.getElementsByName("secondid");
 b[s].options.length = 0;
 for(var i = 0; i <type_labels.length; i++) {
  b[s].add(document.createElement("OPTION"));
  if(i>0){
     b[s].style.display="";
  }else{
     b[s].style.display="none";
  }
  b[s].options[i].text=type_labels[i];
  b[s].options[i].value=type_values[i];
 }
}

var nms=0;

//选择三级分类
function selectThreeType(s){
   var b = document.getElementsByName("secondid");
    switch (b[s].value)
 {
  case'':
   var product_labels=new Array("-- 请选择 --");
   var product_values=new Array("");
   break;
<%
   for(int i = 0; i < typelistFirst.size(); i++)
   {
      Source_type typeone = (Source_type)typelistFirst.get(i);
   List typeList = (List)dbo.findSQLHibernate("from Source_type as type1 where type1.levels='"+typeone.getId()+"' and state='1' order by type1.orders desc",1);
   for(int j=0;j<typeList.size();j++)
   {
    Source_type Type = (Source_type)typeList.get(j);
    out.println("case'"+Type.getId()+"':");
      //三级分类
       List threeList=null;
                threeList=(List)dbo.findSQLHibernate("from Source_type as type1 where type1.levels='"+Type.getId()+"' and state='1' order by type1.orders desc",1);
    out.println("var product_labels = new Array();");
    out.println("var product_values = new Array();");
    out.println("product_labels[0] = /"-- 请选择 --/";");
    out.println("product_values[0] = /"/";");
    out.println("threesize[s]="+threeList.size());
    for(int k = 0; k < threeList.size(); k++)
    {
     Source_type Producttype = (Source_type)threeList.get(k);;
     out.println("product_labels["+(k+1)+"] = /""+new String(Producttype.getTypename().getBytes("iso-8859-1"),"gb2312")+"/";");
     out.println("product_values["+(k+1)+"] = /""+Producttype.getId()+"/";");
    }
    out.println("break;");
   }
  }
%>
 }
 var c = document.getElementsByName("typeid");
 c[s].options.length = 0;
 for(var i = 0; i <product_labels.length; i++)
 {
  c[s].add(document.createElement("OPTION"));
  if(i>0){
    c[s].style.display="";
  }else{
    c[s].style.display="none";
  }
  c[s].options[i].text=product_labels[i];
  c[s].options[i].value=product_values[i];
 }
}


function checkspace(checkstr) {
  var str = '';
  for(i = 0; i < checkstr.length; i++) {
    str = str + ' ';
  }
  return (str == checkstr);
}

function checksubmit(){
  if(checkspace(form6.title.value)){
      alert('请输入资料名称！');
   form6.title.focus();
   return false;
  }
 
  if(checkspace(form6.content.value)){
      alert('请输入资源介绍！');
   form6.content.focus();
   return false;
  }
  if(checkspace(form6.levelid.value)){
      alert('请选择分类！');
   form6.levelid.focus();
   return false; 
  }
  if(secondidsize>0){
    if(checkspace(form6.secondid.value)){
        alert('请选择分类！');
     form6.secondid.focus();
     return false; 
    }
  }
 if(threesize>0){
  if(checkspace(form6.typeid.value)){
      alert('请选择分类！');
   form6.typeid.focus();
   return false; 
  }
 }
   if(checkspace(form6.files.value)&&checkspace(form6.filesb.value)){
      alert('请选择资料！');
   form6.filesb.focus();
   return false;
  }
 form6.submit();
}


</script>
  <form name="form6" method="post" action="/web/center/SourceAction.html?method=uploadsource" enctype="multipart/form-data">
    <table width="699" border="0" >
  <tr>
    <td width="135"  bgcolor="#B8C9DB"><div align="right"><div id="upload_uptext" style="margin-top:5px;"><span class="STYLE6">资料名称:</span></div></td>
    <td width="635"><input name="title" type="text" /></td>
  </tr>
  <tr>
    <td bgcolor="#B8C9DB"><div align="right"id="upload_uptext" style="margin-top:5px;"><span class="STYLE6">资料分类:</span></div></td>
    <td>
     <select name="levelid" onChange="selectSecondType(0)">
     <option value="" selected>-- 请选择 --</option>
     <%for(int i=0;i<typelistFirst.size();i++){
         Source_type sourcetype=(Source_type)typelistFirst.get(i);
     %>
     <option value="<%=sourcetype.getId()%>"><%=new String(sourcetype.getTypename().getBytes("iso-8859-1"),"gb2312")%></option>
     <%}%>
   </select>
   <select name="secondid" style="display:none" onChange="selectThreeType(0)">
     <option value="" selected>-- 请选择 --</option>
   </select>
   <select name="typeid" style="display:none">
     <option value="" selected>-- 请选择 --</option>
   </select></td>
  </tr>
  <tr>
    <td bgcolor="#B8C9DB"><div align="right" id="upload_uptext" style="margin-top:5px;"><span class="STYLE6">进入免费区:</span></div></td>
    <td><select name="frees"><option value="0" >否</option><option value="1" selected>是</option></select></td>
  </tr>
  <tr>
    <td bgcolor="#B8C9DB"><div align="right"id="upload_uptext" style="margin-top:5px;"><span class="STYLE6">是否加密:</span></div></td>
    <td><select name="jiami"><option value="0" selected>否</option><option value="1">是</option></select></td>
  </tr>
  <tr><td bgcolor="#B8C9DB"><div align="right"id="upload_uptext" style="margin-top:5px;"><span class="STYLE6">资源介绍:</span></div></td>
  <td><textarea name="content"></textarea></td>
  </tr>
 
  <tr>
    <td bgcolor="#B8C9DB"><div align="right" id="upload_uptext" style="margin-top:5px;"><span class="STYLE6">选择上传文件:</span></div></td>
    <td><input type="file" name="files">
   
    </td>
   
  </tr>
  <tr>
    <td bgcolor="#B8C9DB"><div align="right" id="upload_uptext" style="margin-top:5px;"><span class="STYLE6">选择本地文件:</span></div></td>
    <td>
    <input type="file" id="f1" style="display:none">
     <input id="f2" name="filesb"><input type="button" value="本地" onClick="f1.click();f2.value=f1.value;">
    </td>
  </tr>
 <tr>
    <td>&nbsp;</td>
    <td><input id="tijiaofiles" type="button" value="确认提交信息" onClick="javascript:return checksubmit()"></td>
  </tr>
 
</table>
</form>
  </body>
</html>

SourceAction.java的一个方法  （对上传的文件和本地浏览的文件做不同的处理）
package my.action;

import java.util.Calendar;
import java.util.List;
import java.util.Random;

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

import my.bean.Log;
import my.bean.Source_inf;
import my.bean.Source_type;
import my.bean.manager;
import my.bean.member;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.actions.DispatchAction;

import com.jetsum.util.PubFunc;
import com.jspsmart.upload.SmartUpload;
import com.pp.db.DBOperate;
public class SourceAction extends DispatchAction {

public ActionForward uploadsource(ActionMapping actionMapping,
   ActionForm actionForm, HttpServletRequest request,
   HttpServletResponse response) throws Exception {
  DBOperate dbo = new DBOperate();

  SmartUpload su = new SmartUpload();
 
  JspFactory _jspxFactory = JspFactory.getDefaultFactory();
        javax.servlet.jsp.PageContext pageContext =
                                        _jspxFactory.getPageContext(
                                                this.getServlet(),
                                                request,
                                                response,
                                                null,
                                                true,
                                                8192,
true);

  su.initialize(pageContext);
//  su.initialize();
  su.setAllowedFilesList("jpg,bmp,gif,rar");
  su.upload();
  
  String filename = su.getRequest().getParameter("title");
  String levelid = su.getRequest().getParameter("levelid");
  String secondid = su.getRequest().getParameter("secondid");
  String typeid = su.getRequest().getParameter("typeid");
  String frees = su.getRequest().getParameter("frees");
  String jiami = su.getRequest().getParameter("jiami");
  String content = su.getRequest().getParameter("content");
  String filesb=su.getRequest().getParameter("filesb");
  Source_inf inf=new Source_inf();
  if(filesb==null)
  {
  String pic = "";
  Random r = new Random();
  int ra = r.nextInt();
  Calendar CD = Calendar.getInstance();
  int YY = CD.get(Calendar.YEAR);
  int MM = CD.get(Calendar.MONTH) + 1;
  int DD = CD.get(Calendar.DATE);
  int HH=CD.get(Calendar.HOUR);
  int M=CD.get(Calendar.MINUTE);
  String dt = Integer.toString(YY) + Integer.toString(MM)
    + Integer.toString(DD)+Integer.toString(HH)+Integer.toString(M);
  String prefix = dt + Integer.toString(ra);
  String name = su.getFiles().getFile(0).getFileName();
  int size=new Integer(su.getFiles().getFile(0).getSize()/1024);  //KB
  int lastdot = name.lastIndexOf(".");
  String name2 = name.substring(lastdot);
   String format=name.substring(lastdot+1);
  pic = prefix + name2;
  com.jspsmart.upload.File file = su.getFiles().getFile(0);
  file.saveAs("uploadfiles/" + pic, su.SAVE_VIRTUAL);
  inf.setFilesrc(new String(pic.getBytes("gb2312"), "iso-8859-1"));
    inf.setFormats(format);
    inf.setSizes(size+"KB");
  }
  else
  {
   String mm=filesb.replace("//","/");   
   inf.setFilesrc(new String(mm.getBytes("gb2312"), "iso-8859-1"));
   int lastdot = filesb.lastIndexOf(".");
    String format=filesb.substring(lastdot+1);
     inf.setFormats(format);
     inf.setSizes(2+"KB");  //本地上传的文件不知道大小
  }
 
  inf.setFilename(new String(filename.getBytes("gb2312"), "iso-8859-1"));
 
  if(!typeid.equals(""))
  {
   inf.setTypeid(PubFunc.parseInt(typeid));
  }
  else
  {
   if(!secondid.equals(""))
   {
    inf.setTypeid(PubFunc.parseInt(secondid));
   }
   else
   {
    inf.setTypeid(PubFunc.parseInt(levelid));
   }
   
  }
  inf.setFrees(frees);
  inf.setJiami(PubFunc.parseInt(jiami));
  inf.setContent(new String(content.getBytes("gb2312"), "iso-8859-1"));
  
  HttpSession session = request.getSession();
  
  manager  manager1=(manager)session.getAttribute("manager");
  //member  member1=(member)session.getAttribute("member");
     inf.setMemberid(manager1.getId());
     inf.setDatetime(new java.util.Date().toLocaleString());
     inf.setState("1");
     inf.setCode(0);
  
     inf.setNewss("1");
     inf.setRedian("0");
     inf.setAuthor(new String(manager1.getUsername().getBytes("gb2312"), "iso-8859-1"));
     inf.setNumbers(1);
     inf.setShenhe(1);
    
     dbo.insert_update(inf, "insert");
  // dbo.insert_update(member1, "update");
  Log log1 = new Log();
  log1.setUsername(manager1.getUsername());
  log1.setDatetime(new java.util.Date().toLocaleString());
  log1.setAction(new String(("添加下载资源<font color='#FF0000'><strong>"
    + new String(inf.getFilename().getBytes("iso-8859-1"),"gbk") + "</strong>--" + "</font>成功！").getBytes("gbk"),"iso-8859-1"));
  dbo.insert_update(log1, "insert");

  response.sendRedirect("/web/managere7kao2007back/upload/pp2up.jsp");
  return actionMapping.findForward("");

 }
}
download_do.jsp(精华部份，对本地下载和上传到uploadfiles的下载方法不同)
<%@page contentType="text/html;charset=UTF-8" import="java.util.*"%>
<%@ page import="my.bean.*"%>
<%@ page import="java.io.*"%>
<%@ page import="com.jetsum.manager.*,com.jetsum.util.*"%>
<%@ page import="com.pp.db.DBOperate"%>
<%
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>
    <base href="<%=basePath%>">
   
    <title>下载</title>
   
 <meta http-equiv="pragma" content="no-cache">
 <meta http-equiv="cache-control" content="no-cache">
 <meta http-equiv="expires" content="0">   
 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
 <meta http-equiv="description" content="This is my page">
 <!--
 <link rel="stylesheet" type="text/css" href="styles.css">
 -->

  </head>
 
  <body>
   <%
  
  String  location="";
   if(request.getParameter("location")!=null)
   {
  location= request.getParameter("location");
   }
 
     String id=request.getParameter("id");
      DBOperate dbo=new DBOperate();
    String hql4="from Source_inf where id="+id;
  List inflist=(List)dbo.findSQLHibernate(hql4,1);
     Source_inf inf1=new Source_inf();
        if(inflist.size()>0){
      inf1=(Source_inf)inflist.get(0);}
     String src=new String(inf1.getFilesrc().getBytes("iso-8859-1"),"gb2312");
     System.out.println(src);
   if(location==null||location.equals("")){
   %>
     <script>
   var file ="<%=src%>";
 var pattern =/[A-Za-z]/:[^/:/?/"/>/</*]*/;
　flag = pattern.test(file); 　
if(!flag)
{//不是本地文件
  window.location.href="download_do.jsp?location=no&id=<%=id%>";
}　　
 　else
 {
//是本地文件

window.location.href="download_do.jsp?location=yes&id=<%=id%>";
 }
  </script> 
 <%   }
  if(location.equals("no"))   ///不是本地的但上传到uploadfiles的怎么下载
  {
     String filesrcsss="/uploadfiles/";
 filesrcsss = request.getRealPath(filesrcsss);  
 
if(!PubFunc.fileExists(filesrcsss+"/"+inf1.getFilesrc())){
    //System.out.println(filesrcsss+"/"+inf1.getFilesrc());
      out.println("<script>");
      out.println("alert('该文件已不存在！');");
          out.println("window.location.href='/Download.jsp'"); 
      out.println("</script>");
      return;
   }
      if(session.getAttribute("member")==null){
    out.println("<script>");
      out.println("alert('请注册成会员,现在所有的资源都可以免费下载！');");
      out.println("window.location.href='/News.jsp'"); 
      out.println("</script>");  
      return;
 }
   out.println("<script>");
   out.println("document.location='http://"+request.getServerName()+"/uploadfiles/"+inf1.getFilesrc()+"';");
                        //下载了
      out.println("</script>");
  }
    if(location.equals("yes"))  //是本地的怎么下载
  {
  if(!PubFunc.fileExists(src)){
      out.println("<script>");
      out.println("alert('该文件已不存在！');");
            out.println("window.location.href='/Download.jsp'"); 
           out.println("</script>");
 
  
      return;
   }
  if(session.getAttribute("member")==null){
    out.println("<script>");
      out.println("alert('请注册成会员,现在所有的资源都可以免费下载！');");
      out.println("window.location.href='/News.jsp'"); 
      out.println("</script>");  
      return;
 }
//以下为下载的操作
out.clearBuffer(); // 如果使用JSP,需要加上这一句
OutputStream os = response.getOutputStream(); // 页面输出流，jsp/servlet都可以
String filename=src;                        //src为E:/java的软件/PLSQL Developer 中文.rar
 int lastdot = filename.lastIndexOf("/");
  String name2 = filename.substring(lastdot);
   String downname=filename.substring(lastdot+1); //下载的时候显示出名字为PLSQL Developer 中文.rar
response.addHeader("Content-Disposition", new String(("attachment; filename=" + downname).getBytes("GBK"), "ISO-8859-1")); // 针对中文文件名
File f = new File(filename); // 你的文件
InputStream is = new FileInputStream(f); // 文件输入流
byte[] bs = new byte[1024];  // 读取缓冲区
int len;
while((len=is.read(bs))!=-1){ // 循环读取
  os.write(bs,0,len); // 写入到输出流
}
is.close();  // 关闭
os.close(); // 关闭
  }
  %>

  </body>
</html>


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