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ajaxfileupload.js怎樣實現(xiàn)斷點續(xù)傳

小樊
83
2024-10-10 02:37:42
欄目: 編程語言

AjaxFileUpload.js 是一個用于實現(xiàn)文件分塊上傳的 JavaScript 庫。要實現(xiàn)斷點續(xù)傳,你需要在客戶端和服務器端都進行一些配置和編碼。以下是實現(xiàn)斷點續(xù)傳的基本步驟:

  1. 客戶端配置:

首先,確保你已經在 HTML 文件中引入了 AjaxFileUpload.js 庫。然后,對需要實現(xiàn)斷點續(xù)傳的文件上傳元素進行配置:

<input type="file" id="fileInput" />
<script src="ajaxFileUpload.js"></script>
<script>
  $(document).ready(function () {
    $("#fileInput").ajaxFileUpload({
      url: "your_server_upload_url", // 服務器端上傳接口地址
      secureuri: false,
      fileElementId: "fileInput",
      dataType: "json",
      success: function (data, status) {
        console.log("上傳成功");
      },
      error: function (data, status, e) {
        console.log("上傳失敗");
      },
      progress: function (data, status) {
        console.log("上傳進度:" + data.percent);
      },
    });
  });
</script>
  1. 服務器端配置:

服務器端需要支持斷點續(xù)傳,這通常涉及到處理文件的分塊和合并。以下是一個使用 Python Flask 的簡單示例:

from flask import Flask, request, jsonify
import os

app = Flask(__name__)
UPLOAD_FOLDER = "uploads"
CHUNK_SIZE = 1024 * 1024  # 1MB

if not os.path.exists(UPLOAD_FOLDER):
    os.makedirs(UPLOAD_FOLDER)

@app.route("/upload", methods=["POST"])
def upload():
    file = request.files["file"]
    filename = file.filename
    chunk_index = int(request.form["chunk_index"])
    total_chunks = int(request.form["total_chunks"])

    file_path = os.path.join(UPLOAD_FOLDER, filename)
    temp_file_path = f"{file_path}.part{chunk_index}"

    with open(temp_file_path, "wb") as f:
        f.write(file.read())

    if chunk_index == total_chunks - 1:
        with open(file_path, "wb") as f:
            for i in range(total_chunks):
                chunk_file_path = f"{file_path}.part{i}"
                with open(chunk_file_path, "rb") as chunk_file:
                    f.write(chunk_file.read())
                os.remove(chunk_file_path)

    return jsonify({"status": "success"})

if __name__ == "__main__":
    app.run()

在這個示例中,我們使用 Flask 框架創(chuàng)建了一個簡單的文件上傳接口。服務器端接收文件的分塊,并將其保存為臨時文件。當所有分塊都接收完畢時,服務器端將它們合并為一個完整的文件。

注意:這個示例僅用于演示目的,實際應用中可能需要考慮更多的錯誤處理和安全性問題。

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