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(Java) HTTP POST JSON

Demonstrates how to send a JSON POST and get the JSON response.

 Chilkat Java Library Downloads for Windows, Linux, and MAC OS X

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[])
  {
    CkHttpRequest req = new CkHttpRequest();
    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;
    }

    //  This example duplicates the HTTP POST shown at
    //  http://json.org/JSONRequest.html

    //  Specifically, the request to be sent looks like this:
    //  
POST /request HTTP/1.1
Accept: application/jsonrequest
Content-Encoding: identity
Content-Length: 72
Content-Type: application/jsonrequest
Host: json.penzance.org

{"user":"doctoravatar@penzance.com","forecast":7,"t":"vlIj","zip":94089}
// First, remove default header fields that would be automatically // sent. (These headers are harmless, and shouldn't need to // be suppressed, but just in case...) http.put_AcceptCharset(""); http.put_UserAgent(""); http.put_AcceptLanguage(""); // Suppress the Accept-Encoding header by disallowing // a gzip response: http.put_AllowGzip(false); // If a Cookie needs to be added, it may be added by calling // AddQuickHeader: http.AddQuickHeader("Cookie","JSESSIONID=1234"); String jsonText; jsonText = "{\"user\":\"doctoravatar@penzance.com\",\"forecast\":7,\"t\":\"vlIj\",\"zip\":94089}"; // To use SSL/TLS, simply use "https://" in the URL. // IMPORTANT: Make sure to change the URL, JSON text, // and other data items to your own values. The URL used // in this example will not actually work. CkHttpResponse resp; resp = http.PostJson("http://json.penzance.org/request",jsonText); if (resp == null ) { System.out.println(http.lastErrorText()); } else { // Display the JSON response. System.out.println(resp.bodyStr()); } } }
 

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