標籤:form asi 圖片 XML pps bsp html tmp room
轉自:http://www.haorooms.com/post/input_file_leixing一、input:file屬性
屬性值有以下幾個比較常用:
accept:表示可以選擇的檔案MIME類型,多個MIME類型用英文逗號分開,常用的MIME類型見下表。
multiple:是否可以選擇多個檔案,多個檔案時其value值為第一個檔案的虛擬路徑。
1、accept
只能選擇png和gif圖片
<input id="fileId1" type="file" accept="image/png,image/gif" name="file" />
2、multiple
多檔案上傳
<input id="fileId2" type="file" multiple="multiple" name="file" />
3、常用MIME類型
尾碼名 MIME名稱*.3gpp audio/3gpp, video/3gpp*.ac3 audio/ac3*.asf allpication/vnd.ms-asf*.au audio/basic*.css text/css*.csv text/csv*.doc application/msword *.dot application/msword *.dtd application/xml-dtd *.dwg image/vnd.dwg *.dxf image/vnd.dxf*.gif image/gif *.htm text/html *.html text/html *.jp2 image/jp2 *.jpe image/jpeg*.jpeg image/jpeg*.jpg image/jpeg *.js text/javascript, application/javascript *.json application/json *.mp2 audio/mpeg, video/mpeg *.mp3 audio/mpeg *.mp4 audio/mp4, video/mp4 *.mpeg video/mpeg *.mpg video/mpeg *.mpp application/vnd.ms-project *.ogg application/ogg, audio/ogg *.pdf application/pdf *.png image/png *.pot application/vnd.ms-powerpoint *.pps application/vnd.ms-powerpoint *.ppt application/vnd.ms-powerpoint *.rtf application/rtf, text/rtf *.svf image/vnd.svf *.tif image/tiff *.tiff image/tiff *.txt text/plain *.wdb application/vnd.ms-works *.wps application/vnd.ms-works *.xhtml application/xhtml+xml *.xlc application/vnd.ms-excel *.xlm application/vnd.ms-excel *.xls application/vnd.ms-excel *.xlt application/vnd.ms-excel *.xlw application/vnd.ms-excel *.xml text/xml, application/xml *.zip aplication/zip *.xlsx application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
二、樣式美化
請看部落格:css input[type=file] 樣式美化,input上傳按鈕美化 http://www.haorooms.com/post/css_input_uploadmh
三、AJAX上傳檔案
在說到ajax上傳檔案。ajax上傳的時候,需要獲得input:file選擇的檔案(可能為多個檔案),擷取其檔案清單為:
// input標籤的files屬性document.querySelector("#fileId").files// 返回的是一個檔案清單數組
獲得的檔案清單,然後遍曆插入到表單資料當中。即:
// 獲得上傳檔案DOM對象var oFiles = document.querySelector("#fileId");// 執行個體化一個表單資料對象var formData = new FormData();// 遍曆圖片檔案清單,插入到表單資料中for (var i = 0, file; file = oFiles[i]; i++) { // 檔案名稱,檔案對象 formData.append(file.name, file);}
獲得表單資料之後,就可以用ajax的POST上傳。
// 執行個體化一個AJAX對象var xhr = new XMLHttpRequest();xhr.onload = function() { alert("上傳成功!");}xhr.open("POST", "upload.php", true);// 發送表單資料xhr.send(formData);
上傳到伺服器之後,擷取到檔案清單為:
Array( [jpg_jpg] => Array ( [name] => jpg.jpg [type] => image/jpeg [tmp_name] => D:\xampp\tmp\phpA595.tmp [error] => 0 [size] => 133363 ) [png_png] => Array ( [name] => png.png [type] => image/png [tmp_name] => D:\xampp\tmp\phpA5A6.tmp [error] => 0 [size] => 1214628 ))
在服務端迴圈遍曆這個數組就可以上傳檔案了。
HTML5的 input:file上傳類型控制