Sending Simple SMS Using Kannel

Sending SMS via HTTP GET

Sending SMS via HTTP GET

package com.simpleget;

import java.io.IOException;
import java.net.URI;

import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

public class simpleGet {

public static void main(String[] args) {
//Create Http client

CloseableHttpClient httpclient = HttpClients.createDefault();
HttpGet httpGet = null;
CloseableHttpResponse response = null;
HttpEntity entity = null;

try{
//Create GET URL 
URI uri = new URIBuilder()
        .setScheme("http")
        .setHost("localhost:13003")
        .setPath("/cgi-bin/sendsms")
        .setParameter("username", "abc")  // kannel username
        .setParameter("password", "xyz")   // kannel password
        .setParameter("smsc", "send")        // smsc name
        .setParameter("dlr-mask", "31")
        .setParameter("from", "Test")          // sender of message (can be any string or number)
        .setParameter("to", "980010.....")   // destination (must be a mobile number)
        .setParameter("text", "hello sending test message")  // message to send
        .build();

httpGet = new HttpGet(uri);

LOG.info(httpGet.getURI());
httpGet.setHeader("content-type", "text/plain");

response = httpclient.execute(httpGet);

        LOG.info(response.getStatusLine());
    entity = response.getEntity();

    EntityUtils.consume(entity);
} catch (Exception e) {

e.printStackTrace();
} finally {
    try {
response.close();
} catch (IOException e) {

e.printStackTrace();
}
}



    }
}


Sending SMS via HTTP POST

package com.simplepost;


import java.io.IOException;
import java.io.InputStream;

import org.apache.commons.io.IOUtils;
import org.apache.http.Consts;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;


public class SimplePost {

public static void main(String[] args) {
String url = "http://localhost:13013/cgi-bin/sendsms";

CloseableHttpClient httpClient = HttpClients.createDefault();
HttpPost httpPost = new HttpPost(url);
CloseableHttpResponse response = null;

StringEntity entity = null;
 //For sending SMS using POST method requires whole message to be in xml string format. It has all the parameters that are in get only in xml format.

          String inputXML= "<message><submit><da><number>9780.....</number></da><oa><number>Test Sender</number></oa><ud>Hello +esting</ud><from><username>abc</username><password>xyz</password></from><to>send</to></submit></message>";

// While using HTTP POST you have to set content type to "text/xml" or else it wont work
              InputStream in ;
                  entity = new StringEntity(inputXML, ContentType.create("text/xml", Consts.UTF_8));
                 entity.setChunked(true);
                 try { 

                 httpPost = new HttpPost(url);

                 httpPost.setEntity(entity);
                 response = httpClient.execute(httpPost);

                 System.out.println(response.getStatusLine());
                 in=response.getEntity().getContent();
                 String body = IOUtils.toString(in);
                 System.out.println(body);
                    EntityUtils.consume(entity);

} catch (Exception e) {

e.printStackTrace();
} finally {
    try {
response.close();
} catch (IOException e) {

e.printStackTrace();
}
}

}
}

Kannel is an open source SMS Gateway which is used widely for sending SMS (single or bulk SMS).

You can get most of the information about how to configure and use kannel in the user guide

The code snippet provided above have simple way to send SMS using Kannel via HTTP POST and HTTP GET.