1. import java.io.IOException;
  2. import java.net.MalformedURLException;
  3. import java.net.URL;
  4. import java.net.URLConnection;
  5. import java.util.HashMap;
  6. import java.util.Map;
  8. public class WebFormArchiver {
  10. private static final String ARCHIVE_FILE = "form_archive.txt"; // File to store form data
  12. public static void archiveFormData(String formUrl) {
  13. try {
  14. URL url = new URL(formUrl);
  15. URLConnection connection = url.openConnection();
  16. connection.setDoOutput(true);
  18. // Get form data as a string
  19. String formData = getFormDataAsString(url);
  21. // Append data to the archive file
  22. appendFormDataToArchive(formData);
  24. } catch (MalformedURLException e) {
  25. System.err.println("Error: Invalid URL - " + formUrl);
  26. // Log the error or handle it appropriately
  27. } catch (IOException e) {
  28. System.err.println("Error: Could not access URL - " + formUrl);
  29. // Log the error or handle it appropriately
  30. } catch (Exception e) {
  31. System.err.println("An unexpected error occurred: " + e.getMessage());
  32. //Log the error or handle it appropriately
  33. }
  34. }
  36. private static String getFormDataAsString(URL url) throws IOException {
  37. // Send a POST request to the URL
  38. try (java.io.OutputStream outputStream = url.getOutputStream()) {
  39. outputStream.write(getFormDataBytes(new HashMap<>()));
  40. }
  42. // Read the response from the server
  43. java.io.BufferedReader reader = new java.io.BufferedReader(url.openStream(), java.nio.charset.StandardCharsets.UTF_8);
  44. return reader.ReadToEnd();
  45. }
  48. private static byte[] getFormDataBytes(Map<String, String> formData) {
  49. StringBuilder sb = new StringBuilder();
  50. for (Map.Entry<String, String> entry : formData.entrySet()) {
  51. sb.append(entry.getKey()).append("=").append(entry.getValue()).append("&");
  52. }
  53. String formString = sb.toString();
  54. return formString.getBytes(java.nio.charset.StandardCharsets.UTF_8);
  55. }
  58. private static void appendFormDataToArchive(String formData) {
  59. try {
  60. java.io.FileWriter writer = new java.io.FileWriter(ARCHIVE_FILE, formData);
  61. writer.append("\n"); // Add a newline between form data entries
  62. writer.close();
  63. } catch (IOException e) {
  64. System.err.println("Error: Could not write to archive file - " + e.getMessage());
  65. //Log the error or handle it appropriately
  66. }
  67. }
  70. public static void main(String[] args) {
  71. // Example usage
  72. String formUrl1 = "https://www.example.com/form1";
  73. String formUrl2 = "https://www.example.com/form2";
  75. archiveFormData(formUrl1);
  76. archiveFormData(formUrl2);
  77. }
  78. }

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