080813 结合使用SWFUpload和SmartUpload

lzj520

浏览: 215256 次
性别:
来自: 广州

最近访客更多访客>>

lbyzx123

kingtsing

laou

sd_zf

博主相关

博客

微博

相册

留言

关于我

文章分类

社区版块

存档分类

博客分类：

个人学习日记

EXT JavaScript JSP jQuery CSS

前台使用SWFUpload：

<%@ page contentType="text/html; charset=GBK"%>
<%@ page import="javax.servlet.*"%>
<%@ page import="javax.servlet.http.*"%>
<%@ page import="com.yourcompany.util.*"%>
<html>
<head>
<link href="js/default.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="js/swfupload.js"></script>
<script type="text/javascript" src="js/handlers.js"></script>
   <script src="js/jquery.js" type="text/javascript"></script>
   <script type="text/javacript">
   function g(){
  $.ajax({
    url: 'upload2.jsp',
    date: {c: $('#c').val(), c: $('#c').val()},
    error: function() { alert"fail"},
    success: function(response) { ... }
    });
  }
   </script>
<script type="text/javascript">

var swfu;
  window.onload = function () {

   swfu = new SWFUpload({
    // Backend Settings
    upload_url: "upload2.jsp", // Relative to the SWF file
    post_params: {"product1": "1"},

        use_query_string:false,
    // File Upload Settings
    file_size_limit : "2048", // 2MB
    file_types : "*.jpg",
    file_types_description : "JPG Images",
    file_upload_limit : "0",

    // Event Handler Settings - these functions as defined in Handlers.js
    // The handlers are not part of SWFUpload but are part of my website and control how
    // my website reacts to the SWFUpload events.
    file_queue_error_handler : fileQueueError,
    file_dialog_complete_handler : fileDialogComplete,
    upload_progress_handler : uploadProgress,
    upload_start_handler : uploadStart,
    upload_error_handler : uploadError,
    upload_success_handler : uploadSuccess,
    upload_complete_handler : uploadComplete,

// Flash Settings
flash_url : "js/swfupload_f9.swf", // Relative to this file

    custom_settings : {
     upload_target : "divFileProgressContainer"
    },

    // Debug Settings
    debug: false
   });
  }

function uploadStart(file) {
var post_params = this.settings.post_params;
post_params.product = document.getElementById("product").value;
this.setPostParams(post_params);
return true;
}
</script>
</head>
<div id="SWFUploadTarget">
<body>

  <div>
   <form action="upload2.jsp" method="get">
    <button id="btnBrowse" type="button" style="padding: 5px;" onClick="swfu.selectFiles(); this.blur();"><img src="images/page_white_add.png" style="padding-right: 3px; vertical-align: bottom;">请选择图片<span style="font-size: 7pt;">(2 MB Max)</span></button>
                    请输入产品ID<input type="text" name="product" id="product" value="">
   </form>
  </div>
  <div id="divFileProgressContainer" style="height: 75px;"></div>
  <div id="thumbnails"></div>
</div>
</body>
<html>

后台使用SmartUpload：

<%@ page contentType="text/html;charset=gb2312" language="java" import="java.io.*,java.awt.Image,java.awt.image.*,com.sun.image.codec.jpeg.*,
java.sql.*,com.jspsmart.upload.*,java.util.*,com.yourcompany.util.*"%>
<%
SmartUpload mySmartUpload =new SmartUpload();
long file_size_max=4000000;
//add

//初始化
mySmartUpload.initialize(pageContext);
//只允许上载此类文件
try {
mySmartUpload.setAllowedFilesList("jpg,gif");
//上载文件
mySmartUpload.upload();
} catch (Exception e){
%>
<SCRIPT language=javascript>
alert("只允许上传.jpg和.gif类型图片文件");
window.location=''upfile.jsp'';
</script>
<%
}
//try{

    com.jspsmart.upload.File myFile = mySmartUpload.getFiles().getFile(0);
    if (myFile.isMissing()){%>
   <SCRIPT language=javascript>
   alert("请先选择要上传的文件");
   window.location=''upfile.jsp'';
   </script>
    <%}
    else{

String fileName2="",ext="",testvar="";
String productname=mySmartUpload.getRequest().getParameter("product");
String url="/uploadfile/"+productname+"/";      //应保证在根目录中有此目录的存在

java.io.File file1 = new java.io.File(request.getRealPath("/") + url );
if(!file1.exists())
{
file1.mkdir();
}

      //String myFileName=myFile.getFileName(); //取得上载的文件的文件名
   ext= myFile.getFileExt();      //取得后缀名
   int file_size=myFile.getSize();     //取得文件的大小
   String saveurl="";
   if(file_size<file_size_max){

int temp=1,temp2=0;
    String[] a=myFile.getFileName().split(".jpg");
    String myFileNameo = productname+"_00_pic_big";
String myFileName = productname+"_0"+temp;

    Calendar calendar = Calendar.getInstance();
    String filename = String.valueOf(calendar.getTimeInMillis());
    saveurl=request.getRealPath("/")+url;
    saveurl+=myFileNameo+"."+ext;          //保存路径

    myFile.saveAs(saveurl,mySmartUpload.SAVE_PHYSICAL);
// java.io.File f1   =   new java.io.File (saveurl);
// java.io.File    f2   =   new   java.io.File (request.getRealPath("/")+url+myFileName+"_0_big.jpg");
// f1.renameTo(f2);
    //out.print(filename);
//-----------------------上传完成，开始生成缩略图-------------------------

com.yourcompany.util.DirList dirlist = new com.pixel.util.DirList();
String[] dir =dirlist.list(request.getRealPath("/") + url );

for(int i=0;i<dir.length;i++){
//for (String i : dir){
String[] split = dir[i].split("\\.");
      if(split[1].equals("jpg")){
      String[] split2=split[0].split("\\_");
      //split2[1]=01
   if(Integer.parseInt(split2[1])>0&Integer.parseInt(split2[1])>=temp2){
   temp2=Integer.parseInt(split2[1])+1;
   }
   if(Integer.parseInt(split2[1])==0){
   temp2=1;
   }
    }
}

if(temp2<=10){
myFileName = productname+"_0"+temp2;
}else{
myFileName = productname+"_"+temp2;
}

//myFileName = mySmartUpload.getRequest().getParameter("product");
    java.io.File file = new java.io.File(saveurl);        //读入刚才上传的文件
    String newurl=request.getRealPath("/")+url+myFileName+"_70_min."+ext; //新的缩略图保存地址
    Image src = javax.imageio.ImageIO.read(file);                     //构造Image对象
    float tagsize=70;
    int old_w=src.getWidth(null);                                     //得到源图宽
    int old_h=src.getHeight(null);
    int new_w=0;
    int new_h=0;                            //得到源图长
    int tempsize;
    float tempdouble;
    if(old_w>old_h){
     tempdouble=old_w/tagsize;
    }else{
     tempdouble=old_h/tagsize;
    }
    new_w=Math.round(old_w/tempdouble);
    new_h=Math.round(old_h/tempdouble);//计算新图长宽
    BufferedImage tag = new BufferedImage(new_w,new_h,BufferedImage.TYPE_INT_RGB);
    tag.getGraphics().drawImage(src,0,0,new_w,new_h,null);       //绘制缩小后的图
    FileOutputStream newimage=new FileOutputStream(newurl);          //输出到文件流
    JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(newimage);
    encoder.encode(tag);                                               //近JPEG编码

            //读入刚才上传的文件
    newurl=request.getRealPath("/")+url+myFileName+"_130_min."+ext; //新的缩略图保存地址
    //Image src = javax.imageio.ImageIO.read(file);                     //构造Image对象
    tagsize=130;
// int old_w2=src2.getWidth(null);                                     //得到源图宽
// int old_h2=src2.getHeight(null);
   // int new_w=0;
   // int new_h=0;                            //得到源图长
   // int tempsize;
// float tempdouble;
    if(old_w>old_h){
     tempdouble=old_w/tagsize;
    }else{
     tempdouble=old_h/tagsize;
    }
    new_w=Math.round(old_w/tempdouble);
    new_h=Math.round(old_h/tempdouble);//计算新图长宽
     tag = new BufferedImage(new_w,new_h,BufferedImage.TYPE_INT_RGB);
    tag.getGraphics().drawImage(src,0,0,new_w,new_h,null);       //绘制缩小后的图
    newimage=new FileOutputStream(newurl);          //输出到文件流
    encoder = JPEGCodec.createJPEGEncoder(newimage);
    encoder.encode(tag);                                               //近JPEG编码

     newurl=request.getRealPath("/")+url+myFileName+"_180_min."+ext; //新的缩略图保存地址
    //Image src = javax.imageio.ImageIO.read(file);                     //构造Image对象
    tagsize=180;
// int old_w2=src2.getWidth(null);                                     //得到源图宽
// int old_h2=src2.getHeight(null);
   // int new_w=0;
   // int new_h=0;                            //得到源图长
   // int tempsize;
// float tempdouble;
    if(old_w>old_h){
     tempdouble=old_w/tagsize;
    }else{
     tempdouble=old_h/tagsize;
    }
    new_w=Math.round(old_w/tempdouble);
    new_h=Math.round(old_h/tempdouble);//计算新图长宽
     tag = new BufferedImage(new_w,new_h,BufferedImage.TYPE_INT_RGB);
    tag.getGraphics().drawImage(src,0,0,new_w,new_h,null);       //绘制缩小后的图
    newimage=new FileOutputStream(newurl);          //输出到文件流
    encoder = JPEGCodec.createJPEGEncoder(newimage);
    encoder.encode(tag);                                               //近JPEG编码

     newurl=request.getRealPath("/")+url+myFileName+"_500_min."+ext; //新的缩略图保存地址
    //Image src = javax.imageio.ImageIO.read(file);                     //构造Image对象
    tagsize=500;
// int old_w2=src2.getWidth(null);                                     //得到源图宽
// int old_h2=src2.getHeight(null);
   // int new_w=0;
   // int new_h=0;                            //得到源图长
   // int tempsize;
// float tempdouble;
    if(old_w>old_h){
     tempdouble=old_w/tagsize;
    }else{
     tempdouble=old_h/tagsize;
    }
    new_w=Math.round(old_w/tempdouble);
    new_h=Math.round(old_h/tempdouble);//计算新图长宽
     tag = new BufferedImage(new_w,new_h,BufferedImage.TYPE_INT_RGB);
    tag.getGraphics().drawImage(src,0,0,new_w,new_h,null);       //绘制缩小后的图
    newimage=new FileOutputStream(newurl);          //输出到文件流
    encoder = JPEGCodec.createJPEGEncoder(newimage);
    encoder.encode(tag);                                               //近JPEG编码

newurl=request.getRealPath("/")+url+myFileName+"_800_min."+ext; //新的缩略图保存地址
    //Image src = javax.imageio.ImageIO.read(file);                     //构造Image对象
    tagsize=800;
// int old_w2=src2.getWidth(null);                                     //得到源图宽
// int old_h2=src2.getHeight(null);
   // int new_w=0;
   // int new_h=0;                            //得到源图长
   // int tempsize;
// float tempdouble;
    if(old_w>old_h){
     tempdouble=old_w/tagsize;
    }else{
     tempdouble=old_h/tagsize;
    }
    new_w=Math.round(old_w/tempdouble);
    new_h=Math.round(old_h/tempdouble);//计算新图长宽
     tag = new BufferedImage(new_w,new_h,BufferedImage.TYPE_INT_RGB);
    tag.getGraphics().drawImage(src,0,0,new_w,new_h,null);       //绘制缩小后的图
    newimage=new FileOutputStream(newurl);          //输出到文件流
    encoder = JPEGCodec.createJPEGEncoder(newimage);
    encoder.encode(tag);                                               //近JPEG编码

newimage.close();

   }
   else{
    out.print("<SCRIPT language=''javascript''>");
    out.print("alert(''上传文件大小不能超过"+(file_size_max/1000)+"K'');");
    out.print("window.location=''upfile.jsp;''");
    out.print("</SCRIPT>");
   }
}
//}catch (Exception e){

//e.toString();

//}
%>

其中：
com.yourcompany.util.DirList dirlist = new com.yourcompany.DirList();
String[] dir =dirlist.list(request.getRealPath("/") + url );

if(temp2<=10){
myFileName = productname+"_0"+temp2;
}else{
myFileName = productname+"_"+temp2;
}

这部分调用一个方法，读取目录里的文件名，并重新按照01、02、03的顺序命名。
获取目录里的文件名的类：

import java.io.File;
import java.io.FilenameFilter;
import java.util.Arrays;
import java.util.Comparator;
import java.util.regex.Pattern;
public class DirList {
public String[] list(String thepath) {
  File path = new File(thepath);
  String[] list;
  list = path.list();
  Arrays.sort(list, new AlphabeticComparator());
  return list;
}
}

class DirFilter implements FilenameFilter {
private Pattern pattern; public DirFilter(String regex) {
  pattern = Pattern.compile(regex); }
public boolean accept(File dir, String name) {
  // Strip path information, search for regex:
  return pattern.matcher(new File(name).getName()).matches();
  }
}

class AlphabeticComparator implements Comparator {
public int compare(Object o1, Object o2) {
  String s1 = (String) o1;    String s2 = (String) o2;
  return s1.toLowerCase().compareTo(s2.toLowerCase());
  }
}

分享到：

081102 struts2 + swfupload 批量上传图片 | acegi 添加验证码

2008-08-13 11:57
浏览 1346
评论(0)
查看更多

发表评论

您还没有登录,请您登录后再发表评论

最近访客更多访客>>

博主相关

文章分类

社区版块

存档分类

最新评论