Checking the HTTP Response Status Code

Simple HTTP GET request to download the HTML of a web page. Check the HTTP response status code (i.e. 200, 404, etc) to see if it downloaded successfully.

Download Chilkat Java Library

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    CkHttp http = new CkHttp();

    boolean success;

    // Any string unlocks the component for the 1st 30-days.
    success = http.UnlockComponent("Anything for 30-day trial");
    if (success != true) {
        System.out.println(http.lastErrorText());
        return;
    }

    // Send the HTTP GET and return the content in a string.
    String html;
    html = http.quickGetStr("http://www.google.com/");

    int status;
    status = http.get_LastStatus();

    if (status == 200) {
        System.out.println("status = 200, OK!");
    }
    else {
        System.out.println("HTTP Response status = "
             + status);

        // Display the complete response header.
        System.out.println(http.lastResponseHeader());
    }

    // Now try a URL where we know we'll get a 404 response:
    html = http.quickGetStr("http://www.chilkatsoft.com/NothingHere.html");

    status = http.get_LastStatus();

    if (status == 200) {
        System.out.println("status = 200, OK!");
    }
    else {
        System.out.println("HTTP Response status = "
             + status);

        // Display the complete response header.
        System.out.println(http.lastResponseHeader());
    }

  }
}