i working on gcm.
i able send notifications registered android devices local server.
i have saving regid , userid in database. requirement send notifications particular devices.how that?
am using java on server side. answers save me..i posted server side code
server side code public class gcmnotification extends httpservlet { private static final long serialversionuid = 1l; // put google api server key here private static final string google_server_key = "aizasydzldr2viv-eghbfzgpjwxcdoqh24wt9ye"; static final string message_key = "message"; static final string title_key = "title"; static final string image_key= "image"; static final string order_key= "order"; private list<string> androidtargets = new arraylist<string>(); public gcmnotification() { super(); // androidtargets.add(re); } protected void doget(httpservletrequest request, httpservletresponse response) throws servletexception, ioexception { //dopost(request, response); connection con=null; try { class.forname("com.mysql.jdbc.driver"); //get connection particular database con=drivermanager.getconnection( "jdbc:mysql://localhost:3306/my_db","root","root1"); string sql; sql = "select regid, fname, email my_db.persons"; statement stmt = con.createstatement(); resultset rs = stmt.executequery(sql); while(rs.next()){ //retrieve column name int id = rs.getint("regid"); string first = rs.getstring("fname"); string last = rs.getstring("email"); androidtargets.add(id); } rs.close(); stmt.close(); con .close(); } catch (sqlexception e) { // todo auto-generated catch block e.printstacktrace(); } catch (classnotfoundexception e) { // todo auto-generated catch block e.printstacktrace(); } } protected void dopost(httpservletrequest request, httpservletresponse response) throws servletexception, ioexception { doget(request, response); response.setcontenttype("text/html"); printwriter pw = response.getwriter(); //multicastresult result = null; //result result1=null; writer writer=null; connection con=null; printwriter out = response.getwriter(); string share = request.getparameter("shareregid"); // gcm redgid of android device send push notification string reg = ""; string emailid=""; string fname=""; if (share != null && !share.isempty()) { reg = request.getparameter("regid"); emailid=request.getparameter("email"); fname=request.getparameter("name"); system.out.println("regid: " + reg); system.out.println("mailid " + emailid); system.out.println("name "+ fname); try { //load driver connection class.forname("com.mysql.jdbc.driver"); //get connection particular database con=drivermanager.getconnection( "jdbc:mysql://localhost:3306/my_db","root","root1"); preparedstatement pst=con.preparestatement("insert my_db.persons(regid,email,fname) values(?,?,?)"); pst.setstring(1,reg); pst.setstring(2,emailid); pst.setstring(3,fname); int = pst.executeupdate(); if(i!=0){ pw.println("<br>record has been inserted"); } else{ pw.println("failed insert data"); } } catch (sqlexception e) { // todo auto-generated catch block e.printstacktrace(); } catch (classnotfoundexception e) { // todo auto-generated catch block e.printstacktrace(); } multicastresult result1=null; string usermessage = request.getparameter("message"); string imageurl = request.getparameter("image"); string order1=request.getparameter("odt"); string titl=request.getparameter("tit"); sender sender = new sender(google_server_key); message message = new message.builder().timetolive(10000) .delaywhileidle(false) .adddata(title_key, titl) .adddata(message_key,usermessage) .adddata(image_key, imageurl) .adddata(order_key, order1) .build(); try { // use multicast messages. second parameter hashset<string> set = new hashset<string>(androidtargets); // create arraylist set. arraylist<string> result = new arraylist<string>(set); system.out.println("reg2:"+result); // of sender.send() need array of register ids. result1 = sender.send(message, result,1); /* if (result1.getresults() != null) { int canonicalregid = result1.getcanonicalids(); if (canonicalregid != 0) { } } else { int error = result1.getfailure(); system.out.println("broadcast failure: " + error); }*/ } catch (exception e) { e.printstacktrace(); } request.setattribute("pushstatus", result1.tostring()); request.getrequestdispatcher("index.jsp") .forward(request, response); } }
simply add clause sql query filter out exact user want deal with. if want filter user email use this..
sql = "select regid, fname, email my_db.persons email = 'abc@gmail.com'"; 
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