Tag:upload

  • HTML5 client to verify the size of the upload file (simple example)

    Time:2021-6-22

    In HTML 5, it is now possible to verify the file upload on the client. For example, after the user selects the file, the size and attributes of the file can be verified immediately. This article introduces how to verify the size of the uploaded file by HTML5 client. Interested code farmers can refer to […]

  • Analysis of file upload steps based on springboot

    Time:2021-6-4

    This article mainly introduces the spring boot file upload steps analysis, the article through the example code is very detailed, for everyone’s study or work has a certain reference learning value, need friends can refer to The first step is to write the front page of upload <div> <button type=”button” ng-click=”openAddModal()” data-toggle=”modal” data-target=”#documentOprModal” style=”margin-left: 10px;float:left”> […]

  • Flash upload custom avatar example explanation

    Time:2021-4-20

    Flash web development is basically finished, but I still need to review it later. But I always feel that my blog is a little crude, so I’m using my brain to develop new functions Today, I think of the most basic function, custom avatar This kind of function is designed into two basic function blocks […]

  • Introduction and application of two upload methods of Apache fileUpload

    Time:2021-4-1

    environment: tomcat5.6 commmons-fileupload-1.3.jar commmons-io-2.4.jar JSP Code: UTF-8Temporary folder: fileUpload / tmp relative to site rootUpload file save location: fileUploadTraditional API upload method //fileload01.htm Copy codeThe code is as follows: <meta http-equiv=”Content-Type” content=”text/html; charset=UTF-8″> <html> <body> <form method=”POST” enctype=”multipart/form-data” action=”traditionalapi.jsp”> File to upload: <input type=”file” name=”file” size=”40″><br/> <input type=”submit” value=”Press”> to upload the file! </form> </body> […]

  • Examples and analysis of spring boot multi file upload code

    Time:2021-3-18

    This article mainly introduces the spring boot multi file upload code examples and analysis, the article through the example code is very detailed, for everyone’s study or work has a certain reference learning value, need friends can refer to I. explanation Spingmvc supports file upload, which is implemented through the Commons multipart resolver of apach’s […]

  • JSP file upload and download instance code

    Time:2021-3-11

    File upload: Copy codeThe code is as follows: public class UploadServlet extends HttpServlet{ @Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { doPost(req, resp); } @Override protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { SmartUpload myupload = new SmartUpload(); ServletConfig config = getServletConfig(); myupload.initialize(config,req,resp); resp.setContentType(“text/html”); resp.setCharacterEncoding(“utf-8”); PrintWriter out = resp.getWriter(); out.println […]

  • IOS implements file slicing storage and upload (imitating breakpoint continuous transmission mechanism)

    Time:2020-12-13

    Introduction: In our development, we usually upload data files to the cloud in video apps or apps that interact with hardware, and a few social apps upload more pictures. The following is about saving slices of data files (type txt) locally and uploading them to the cloud one by one, imitating the mechanism of breakpoint […]

  • Java realizes file upload, download and image preview

    Time:2020-11-19

    This article mainly introduces the Java implementation of file upload, download, image preview, the article through the example code is very detailed, for everyone’s study or work has a certain reference learning value, need friends can refer to Save multiple files locally: @ResponseBody @RequestMapping(value = “/uploadApp”,produces = { “application/json;charset=UTF-8” },method= RequestMethod.POST) public String uploadApp( HttpServletRequest […]

  • PHP to realize local image to Base64 format and upload

    Time:2020-9-5

    When we develop the system, it is inevitable to handle image upload. For example, those who use ThinkPHP are very familiar with import (“@) ORG.UploadFile Today, let’s talk about a method to upload images using HTML5 Base64. It mainly uses the interface of HTML5 FileReader. Since it is HTML5, I won’t say much about the […]

  • Java uses SmartUpload component to upload files

    Time:2020-8-15

    This paper describes the method of Java using SmartUpload component to upload files. Share with you for your reference. The specific analysis is as follows: File upload is a function of almost all websites. Users can upload files to the specified folder of the server or save them in the database. Here, we mainly describe […]

  • ASP.NET Example of core file upload and download (multiple upload methods)

    Time:2020-7-2

    preface Some time ago, the project was on line. I was really busy. Recently, I began to study it ASP.NET Core I’m going to write a series, but I haven’t thought of the catalogue yet ASP.NET Core 2.0 is mature now. Try to use it in the next project text 1. Use model binding to […]

  • Export HTML5 canvas pictures and upload server functions

    Time:2020-6-15

    Export HTML5 canvas pictures and upload them to the server In recent projects, we often meet the needs of canvas to draw pictures, such as jigsaw puzzles, such as picture editing, etc. The pictures processed by canvas must involve preservation, So here’s what you might need~ Ideas: 1. Use todataurl() method to export canvas image, […]