通过PHP [CodenameOne]在服务器上上传文件

3 回答

• 0

  我想你需要使用PHP: move_uploaded_file()正如你所看到的here是一个完整的例子，希望它对你有帮助 .

  回复于 2024-05-03T09:51:52+08:00
• 0

  最后找到的答案如下 .

  修正了PHP代码：

  <?php
  
  define('UPLOAD_DIR',$_SERVER['DOCUMENT_ROOT'].'/appFiles/GKQuiz/userProfilePicture/');
  
  // after $_SERVER['DOCUMENT_ROOT']. your root inside public_html folder if any or '/'.
  
  $Imagecode=$_POST['Image']; // parameter
  
  $img=base64_decode($Imagecode);
  $uid=uniqid();
  
  $file = UPLOAD_DIR . $uid . '.jpg';
  $success = file_put_contents($file, $img);
  
  if ($success)
  {
    echo $uid.'.jpg';
  }
  else
  {
    echo "error";
  }
  
  ?>
  

  在CodenameOne中，您的代码可能如下所示：

  if (profilepic!=null) {
  ImageIO imgIO = ImageIO.getImageIO();
  ByteArrayOutputStream out = new ByteArrayOutputStream();
  imgIO.save(profilepic, out, ImageIO.FORMAT_JPEG, 1);
  byte[] ba = out.toByteArray();
  String Imagecode = Base64.encode(ba);
  //System.out.println("data :"+Imagecode);
  request = new ConnectionRequest(){
       @Override
       protected void handleErrorResponseCode(int code, String message) {
             System.out.println("Code :"+code+" Msg :"+message);
       }
  
  };
  request.setPost(true);
  request.setHttpMethod("POST");
  request.addArgument("Image", Imagecode);
  request.setUrl("http://example.com/filename.php");
  NetworkManager.getInstance().addToQueueAndWait(request);
  }else{
       System.out.println("Unable to upload");
  }
  

  回复于 2024-05-03T09:51:52+08:00
• 0

  Codename One具有内置标准上载API，支持MultipartRequest中的多部分请求HTTP标准 .

  MultipartRequest无缝处理二进制base64等 .

  MultipartRequest request = new MultipartRequest();
  request.setUrl(url);
  request.addData("myFileName", fullPathToFile, "text/plain")
  NetworkManager.getInstance().addToQueue(request);
  

  拦截它的Java servlet代码应如下所示：

  @WebServlet(name = "UploadServlet", urlPatterns = {"/upload"})
  @MultipartConfig(fileSizeThreshold = 1024 * 1024 * 100, // 10 MB
          maxFileSize = 1024 * 1024 * 150, // 50 MB
          maxRequestSize = 1024 * 1024 * 200)      // 100 MB
  public class UploadServlet extends HttpServlet {
  
      @Override
      public void doPost(HttpServletRequest req, HttpServletResponse res)
              throws ServletException, IOException {
          Collection<Part> parts = req.getParts();
          Part data = parts.iterator().next();
          try(InputStream is = data.getInputStream()) {}
              // store or do something with the input stream
          }
      }
  }
  

  我不是一个PHP的人，但快速谷歌搜索让我在w3c school与此

  <?php
  $target_dir = "uploads/";
  $target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
  $uploadOk = 1;
  $imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);
  // Check if image file is a actual image or fake image
  if(isset($_POST["submit"])) {
      $check = getimagesize($_FILES["fileToUpload"]["tmp_name"]);
      if($check !== false) {
          echo "File is an image - " . $check["mime"] . ".";
          $uploadOk = 1;
      } else {
          echo "File is not an image.";
          $uploadOk = 0;
      }
  }
  ?>
  

  回复于 2024-05-03T09:51:52+08:00