def upload(request): return render(request, 'upload.html') def upload_file(request): username = request.POST.get('username') fafafa = request.FILES.get('fafafa') with open(fafafa.name, 'wb') as f: for item in fafafa.chunks(): f.write(item) print(username) ret = {'code': '123456', 'data': 'hahahaha'} import json return HttpResponse(json.dumps(ret))
1.xmlHttpResquest
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <style> .file{ width: 100px; height: 50px; position: absolute; z-index: 100; opacity: 0; } .upload{ width: 100px; height: 50px; position: absolute; z-index: 90; top: 0; bottom: 0; right: 0; left: 0; background-color: blue; text-align: center; line-height: 50px; border-radius: 30px; color: white; } </style> <body> <div style="position: relative;height: 50px;width: 100px;"> <input class="file" type="file" id="fafafa"> <a class="upload">上傳</a> </div> <input type="button" value="xhr提交" onclick="xhrSubmit()"> <script src="/static/jquery-1.12.4.js"></script> <script> function xhrSubmit() { var file_obj = document.getElementById('fafafa').files[0]; var fd = new FormData(); fd.append('username','root') fd.append('fafafa',file_obj) var xhr = new XMLHttpRequest(); xhr.open('POST', '/upload_file/',true); <!--onreadystatechange可以監測xhr的狀態變化--> xhr.onreadystatechange = function(){ if(xhr.readyState == 4){ // 接收完畢 var obj = JSON.parse(xhr.responseText); console.log(obj); } }; xhr.send(fd); } </script> </body> </html>
2.jQuery
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <style> .file{ width: 100px; height: 50px; position: absolute; z-index: 100; opacity: 0; } .upload{ width: 100px; height: 50px; position: absolute; z-index: 90; top: 0; bottom: 0; right: 0; left: 0; background-color: blue; text-align: center; line-height: 50px; border-radius: 30px; color: white; } </style> <body> <div style="position: relative;height: 50px;width: 100px;"> <input class="file" type="file" id="fafafa"> <a class="upload">上傳</a> </div> <input type="button" value="jQuery提交" onclick="jqSubmit()"> <script src="/static/jquery-1.12.4.js"></script> <script> function jqSubmit() { {#var file_obj = $('fafafa').files[0];#} var file_obj = document.getElementById('fafafa').files[0]; var fd = new FormData(); fd.append('username','root'); fd.append('fafafa',file_obj); $.ajax({ url: '/upload_file/', type: 'post', data: fd, processData: false, // tell jQuery not to process the data contentType: false, // tell jQuery not to set contentType success:function (arg,a1,a2) { console.log(arg); console.log(a1); console.log(a2); } }) } </script> </body> </html>
3.iframe
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <form action="/upload_file/" method="POST" enctype="multipart/form-data" target="ifm1"> <!--這里添加iframe是由於需要有一個html接收"/upload_file/"方法返回的參數，一般為HttpResponse，所以這里使用iframe接收， iframe一般設置為"display：none"將其隱藏--> <iframe id='ifm1' name="ifm1"></iframe> <input type="file" name="fafafa"> <input type="submit" onclick="iframeSubmit()" value="iframe提交"> </form> <script src="/static/jquery-1.12.4.js"></script> <script> function iframeSubmit() { $('#ifm1').load(function () { var text = $('#ifm1').contents().find('body').text(); var obj = JSON.parse(text) console.log(obj) }) } </script> </body> </html>
FormData
The FormData interface provides a way to easily construct a set of key/value pairs representing form fields and their values, which can then be easily sent using the XMLHttpRequest.send() method. It uses the same format a form would use if the encoding type were set to "multipart/form-data".
An object implementing FormData can directly be used in a for...of structure, instead of entries(): for (var p of myFormData) is equivalent to for (var p of myFormData.entries()).
FormData對象用以將數據編譯成鍵值對，以便用XMLHttpRequest來發送數據。其主要用於發送表單數據，但亦可用於發送帶鍵數據(keyed data)，而獨立於表單使用。如果表單enctype屬性設為multipart/form-data ，則會使用表單的submit()方法來發送數據，從而，發送數據具有同樣形式。
https://developer.mozilla.org/en-US/docs/Web/API/FormData
1、通過get(key)與getAll(key)來獲取相對應的值
// 獲取key為age的第一個值 formdata.get("age"); // 獲取key為age的所有值，返回值為數組類型 formdata.getAll("age");
2、通過append(key,value)在數據末尾追加數據
//通過FormData構造函數創建一個空對象 var formdata=new FormData(); //通過append()方法在末尾追加key為name值為laoliu的數據 formdata.append("name","laoliu"); //通過append()方法在末尾追加key為name值為laoli的數據 formdata.append("name","laoli"); //通過append()方法在末尾追加key為name值為laotie的數據 formdata.append("name","laotie"); //通過get方法讀取key為name的第一個值 console.log(formdata.get("name"));//laoliu //通過getAll方法讀取key為name的所有值 console.log(formdata.getAll("name"));//["laoliu", "laoli", "laotie"]
3、通過set(key, value)來設置修改數據
# key的值不存在，會添加一條數據 //通過FormData構造函數創建一個空對象 var formdata=new FormData(); //如果key的值不存在會為數據添加一個key為name值為laoliu的數據 formdata.set("name","laoli"); //通過get方法讀取key為name的第一個值 console.log(formdata.get("name"));//laoli
4、通過has(key)來判斷是否存在對應的key值
//通過FormData構造函數創建一個空對象 var formdata=new FormData(); //通過append()方法在末尾追加key為name值為laoliu的數據 formdata.append("name","laoliu"); //判斷是否包含key為name的數據 console.log(formdata.has("name"));//true //判斷是否包含key為age的數據 console.log(formdata.has("age"));//false
5、通過delete(key)可以刪除數據
//通過FormData構造函數創建一個空對象 var formdata=new FormData(); //通過append()方法在末尾追加key為name值為laoliu的數據 formdata.append("name","laoliu"); console.log(formdata.get("name"));//laoliu //刪除key為name的值 formdata.delete("name"); console.log(formdata.get("name"));//null
通過XMLHttpRequest發送數據
<form id="advForm"> <p>廣告名稱：<input type="text" name="advName" value="xixi"></p> <p>廣告類別：<select name="advType"> <option value="1">輪播圖</option> <option value="2">輪播圖底部廣告</option> <option value="3">熱門回收廣告</option> <option value="4">優品精選廣告</option> </select></p> <p>廣告圖片：<input type="file" name="advPic"></p> <p>廣告地址：<input type="text" name="advUrl"></p> <p>廣告排序：<input type="text" name="orderBy"></p> <p><input type="button" id="btn" value="添加"></p> </form>
var btn=document.querySelector("#btn"); btn.onclick=function(){ var formdata=new FormData(document.getElementById("advForm")); var xhr=new XMLHttpRequest(); xhr.open("post","http://127.0.0.1/adv"); xhr.send(formdata); xhr.onload=function(){ if(xhr.status==200){ //... } } }
上傳至指定目錄
settings.py文件
MEDIA_URL = "/media/" MEDIA_ROOT = os.path.join(BASE_DIR, "media")
然后在project的目錄下創建文件夾"media"