ハピタス登録で1,000円分になるURL
ChatGPT完璧
すげえ
「PHPで書かれたファイルアップロードのコードを示して」
<form action="upload.php" method="post" enctype="multipart/form-data">
Select file to upload:
<input type="file" name="fileToUpload" id="fileToUpload">
<input type="submit" value="Upload File" name="submit">
</form>
<?php
if(isset($_POST['submit'])) {
$target_dir = "uploads/";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$uploadOk = 1;
$imageFileType = strtolower(pathinfo($target_file,PATHINFO_EXTENSION));
if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.";
} else {
echo "Sorry, there was an error uploading your file.";
}
}
?>
複数ファイルupload対応PHP
ちゃんとfor文はさみよる。すっげえ。
「PHPで書かれた複数ファイルアップロードのコードを示して」
<?php
$server_url = "http://example.com/upload.php";
if (isset($_FILES['files'])) {
$errors = ;
$files = $_FILES['files'];
for ($i = 0; $i < count($files['name']); $i++) {
$file_name = $files['name'][$i];
$file_tmp = $files['tmp_name'][$i];
$file_type = $files['type'][$i];
$file_size = $files['size'][$i];
if ($file_size > 2097152) {
$errors = 'File size must be less than 2 MB';
}
if (empty($errors)) {
$post_data = array(
'file_contents' => base64_encode(file_get_contents($file_tmp)),
'file_name' => $file_name,
'file_type' => $file_type,
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $server_url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
curl_close($ch);
if ($response === 'Success') {
echo "File '$file_name' uploaded successfully<br>";
} else {
echo "Failed to upload file '$file_name'<br>";
}
} else {
foreach ($errors as $error) {
echo $error . "<br>";
}
}
}
}
?>
<form action="" method="post" enctype="multipart/form-data">
<input type="file" name="files" multiple>
<input type="submit" value="Upload">
</form>
Ruby on Railsだとどうか
完璧
# In the controller
def create
params[:files].each do |file|
@upload = Upload.create(file: file)
end
redirect_to uploads_path
end
# In the model
class Upload < ApplicationRecord
mount_uploader :file, FileUploader
end
# In the uploader
class FileUploader < CarrierWave::Uploader::Base
storage :file
end
# In the view
<%= form_for @upload, url: uploads_path, html: { multipart: true } do |f| %>
<%= file_field_tag "files", multiple: true %>
<%= f.submit "Upload" %>
<% end %>
Pythonでやってみる
「pythonで書かれた複数ファイルアップロードのコードを示して」
import requests
def upload_files(url, files):
for file in files:
with open(file, 'rb') as f:
response = requests.post(url, files={file: f})
if response.status_code == 200:
print(f'File {file} was successfully uploaded.')
else:
print(f'File {file} was not uploaded. Response code: {response.status_code}')
files = ['file1.txt', 'file2.txt']
upload_files('http://example.com/upload', files)
Javaでやってみる
「javaで書かれたファイルアップロードのコードを示して」
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
public class FileUpload {
public static void uploadFile(String serverURL, File file) {
try {
String boundary = Long.toHexString(System.currentTimeMillis());
String CRLF = "\r\n";
URL url = new URL(serverURL);
URLConnection connection = url.openConnection();
HttpURLConnection httpConnection = (HttpURLConnection) connection;
httpConnection.setUseCaches(false);
httpConnection.setDoOutput(true);
httpConnection.setRequestMethod("POST");
httpConnection.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary);
try (OutputStream output = httpConnection.getOutputStream();
InputStream input = new FileInputStream(file)) {
output.write*1;
output.write*2;
output.write*3;
output.write(CRLF.getBytes());
byte buffer = new byte[4096];
int bytesRead;
while ((bytesRead = input.read(buffer)) != -1) {
output.write(buffer, 0, bytesRead);
}
output.write((CRLF + "--" + boundary + "--" + CRLF).getBytes());
output.flush();
}
int responseCode = httpConnection.getResponseCode();
if (responseCode != HttpURLConnection.HTTP_OK) {
throw new IOException("Server returned non-OK status: " + responseCode);
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
複数ファイルupload対応java
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.List;
public class FileUpload {
public static void uploadFiles(String serverURL, List<File> files) {
try {
String boundary = Long.toHexString(System.currentTimeMillis());
String CRLF = "\r\n";
URL url = new URL(serverURL);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary);
connection.setDoOutput(true);
try (OutputStream output = connection.getOutputStream()) {
for (File file : files) {
output.write(("--" + boundary + CRLF).getBytes());
output.write(("Content-Disposition: form-data; name=\"file\"; filename=\"" + file.getName() + "\"" + CRLF).getBytes());
output.write(("Content-Type: application/octet-stream" + CRLF + CRLF).getBytes());
try (InputStream input = file) {
byte buffer = new byte[1024];
for (int length = 0; (length = input.read(buffer)) > 0;) {
output.write(buffer, 0, length);
}
output.write(CRLF.getBytes());
}
}
output.write*4;
}
if (connection.getResponseCode() == HttpURLConnection.HTTP_OK) {
System.out.println("Files uploaded successfully");
} else {
System.out.println("File upload failed");
}
} catch (IOException e) {
System.out.println("File upload failed: " + e.getMessage());
}
}
public static void main(String[] args) {
List<File> files = new ArrayList<>();
files.add(new File("file1.txt"));
files.add(new File("file2.txt"));
uploadFiles("http://example.com/upload", files);
}
}
