我有一个简单的服务器在ESP8266上运行，SD卡上有文件 . 在我的电脑上，我正在运行wampserver，并有一个页面将文件上传到ESP上的SD卡'

<!DOCTYPE html>
<html>
    <head>
    <title>Handle Files</title>
    <h1 style="text-align:center;">
    File access page</h1>
    </head>
    <body>
        <form action="http://192.168.1.8/upload" method="post" 
enctype="multipart/form-data">
        <input type="text" name="ip" value="192.168.1.8">
        <input type="file" name="name">
        <input class="button" type="submit" value="Upload">
        </form>
    </body>
</html>

我可以通过两种方式连接到ESP - 作为接入点和WiFi . 当作为接入点连接时，IP为192.168.4.1，而当WiFi为192.168.1.8时 .

如何在表单的操作中使用名为ip的文本框中的IP地址 .

我假设我需要javascript，并且已经使用它广泛地将各种数据从服务器传回到其他页面，但这包括我 .

请注意，服务器会将重定向发送回同一页面 .

麦克风 . 编辑，这是处理上传的服务器端代码 .

void handleUpload(){
static File in;
  HTTPUpload& upload = server.upload();
  if(upload.status == UPLOAD_FILE_START){
    String filename = upload.filename;
    if(!filename.startsWith("/")) filename = "/"+filename;
    Serial.print("handleUpload Name: "); 
    Serial.println(filename);
    if(SD.exists(filename))
      SD.remove(filename);
    in = SD.open(filename,FILE_WRITE);            // Open the file for writing
  }else if(upload.status == UPLOAD_FILE_WRITE){
    if(in)
      in.write(upload.buf, upload.currentSize); // Write the received bytes to the file
  }else if(upload.status == UPLOAD_FILE_END){
    if(in) {                                    // If the file was successfully created
      in.close();                               // Close the file again
      Serial.print("handleUpload Size: "); 
      Serial.println(upload.totalSize);
      server.sendHeader("Location","http://localhost/file.htm");      // Redirect the client back to local
      server.send(303);
    }else{
      server.send(500, "text/plain", "500: couldn't create file");
    }
  }
}
javascript submit esp8266