FileReference 上傳圖檔

上傳圖檔後, 再載入該圖檔

為了避免中文檔名的影響,
上傳檔案的同時, 傳給後端一個 md5 編碼後的字串
並以該字串為上傳後的檔名

Frame Actions

import com.gsolo.encryption.MD5;

var uploadURL:String = "upload_uni_9.php";
var req:URLRequest = new URLRequest(uploadURL);
var myMD5:String;
var file:FileReference = new FileReference();

req.method = URLRequestMethod.POST;

// 按 upload_btn 選擇上傳的檔案upload_btn.addEventListener(MouseEvent.MOUSE_UP, myMouseUp);
function myMouseUp(e:Event):void{
   file.browse([new FileFilter("Images", "*.jpg;*.gif;*.png")]);
}
//
file.addEventListener(Event.SELECT, myFileSelect);
file.addEventListener(Event.COMPLETE, myFileComplete);
// 選擇所欲上傳的圖檔後
function myFileSelect(e:Event):void{
   var vars:URLVariables = new URLVariables();
   myMD5 = MD5.encrypt(file.name+new Date().getTime());
   vars.md5 = myMD5;
   req.data = vars;
   file.upload(req);
}
// 上傳完成後
function myFileComplete(e:Event):void{
   var dotIndex:int = file.name.lastIndexOf(".");
   var ext:String = file.name.substring(dotIndex);
   var picURL:String = "./imgs/"+myMD5+ext;
   // 載入圖片
   var picReq:URLRequest = new URLRequest(picURL);
   var pic:Loader = new Loader();
   pic.load(picReq);
   pic.x = 100;
   pic.y = 100;
   this.addChild(pic);
}

PHP

// 圖檔上傳後所欲存放的目錄
$up_dir = "./imgs/";
// 若目錄不存在, 則建立之
if(!is_dir($up_dir))
   mkdir($up_dir, 0755);
// 取得上傳檔案的副檔名
$pos = strrpos($_FILES["Filedata"]["name"], ".");
if ($pos === false) {
   $ext = "";
}else{
   $ext = substr($_FILES["Filedata"]["name"], $pos);
}
// 以傳入的md5為儲存的檔名
$up_file = $up_dir . $_POST["md5"] . $ext;
// 將檔案放到設定的目錄內
move_uploaded_file($_FILES["Filedata"]["tmp_name"], $up_file);
chmod($up_file, 0777);

將 ByteArray 物件傳給 PHP 存檔

ByteArray 物件可以透過 URLRequest 物件傳給後端

_btn.addEventListener(MouseEvent.MOUSE_UP, myMouseUp);
function myMouseUp(e:Event){
   var req:URLRequest = new URLRequest("test_request.php");
   req.data = byte_array_data;
   req.method = URLRequestMethod.POST;
   req.contentType = 'application/octet-stream';
   flash.net.navigateToURL(req, "_blank");
}

若使用 PHP

$data = $GLOBALS['HTTP_RAW_POST_DATA'];
if (is_null($data)) {
   echo "No data was sent";
} else {
   $file = fopen("test.jpg", "w") or die("Can't open file");
   if(!fwrite($file, $data)){
      echo "Error writing to file";
   }
   print "OK\n";
   fclose($file);
} 

判斷兩個日期是否在同一週

// 判斷兩個日期(格式為 YYYY/MM/DD 字串)是否在同一週
function isSameWeek(a:String, b:String):Boolean {

   var a_arr = a.split("/");
   var b_arr = b.split("/");

   var a_date = new Date(a_arr[0], a_arr[1]-1, a_arr[2]);

   var b_date = new Date(b_arr[0], b_arr[1]-1, b_arr[2]);

   return (a_date.getDay()-b_date.getDay())*86400000
      == a_date.getTime()-b_date.getTime();
}

秀出 HTTP Header (Java)

秀出 HTTP Header 的小程式 SD_HTTPTest.class
HTTP GET Request 是用 Packetyzer 偷看 Firefox 的 GET 而來的
這個小程式純粹教學用途, 所以很陽春

// shinder.lin@gmail.com
// www.riarock.com
import java.net.*;
import java.io.*;
import java.util.*;
import java.nio.charset.*;

public class SD_HTTPTest
{
 public static void main(String arg[])
 {
  String uri = "shinder.idv.tw";
  try
  {
   if(arg.length >= 1){
    uri = arg[0];
   }
   Socket mySocket = new Socket(uri, 80);
  
   if(mySocket.isConnected())
   {
    OutputStream out = mySocket.getOutputStream();
    BufferedWriter bWriter = new BufferedWriter(
     new OutputStreamWriter(out));
    String msg = "GET / HTTP/1.1\r\n"+
     "Host: "+uri+"\r\n"+
     "User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-TW; rv:1.7.12) Gecko/20050919 Firefox/1.0.7\r\n"+
     "Accept: application/x-shockwave-flash,text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5\r\n"+
     "Accept-Language: zh-tw,en-us;q=0.7,en;q=0.3\r\n"+
     "Accept-Encoding: gzip,deflate\r\n"+
     "Accept-Charset: Big5,utf-8;q=0.7,*;q=0.7\r\n"+
     "Keep-Alive: 300\r\n"+
     "Connection: keep-alive\r\n\r\n";
    bWriter.write(msg);
    bWriter.flush();
   }else{
    System.out.println("Not Connected");
   }
  
   if(mySocket.isConnected())
   {
    InputStream in = mySocket.getInputStream();
    BufferedReader bReader = new BufferedReader(
     new InputStreamReader(in));
    char cbuf[] = new char[4096];
    //去除多餘的字元
    bReader.read(cbuf);
    int count = 0;
    for(count=0; count < cbuf.length; count++){
     if(cbuf[count] == 0){
      break;
     }
    }
    String msg = new String(cbuf, 0, count);
    System.out.println(msg);
   }
  }
  catch(IOException ex){
   System.out.println("連結錯誤！");
  }
  catch(Exception ex){
   System.out.println("發生例外："+ex.toString());
  }
 }
}