How to print from servlet to webpage? - google-app-engine

Question

Hi I am trying to print the list from servlet to web screen (jsp)
I am using log and it's not working.
Is there anyway to do or am I using this wrong?
private static final Logger log = Logger.getLogger(TodoServiceServlet.class.getName());
.....
Todo tmp = pm.getObjectById(Todo.class, user.getEmail());
System.out.println("user email: " + user.getEmail());
if(tmp==null){
log.info("You have not stored any todo lists yet");
}else{
System.out.println("user email is there?: " + tmp.getEmail());
System.out.println("start printing");
ArrayList<String> todolists = tmp.getList();
if(todolists==null)
System.out.println("Arraylist null");
if(!todolists.isEmpty()){
for(String t : todolists){
System.out.println("In the list: " + t);
log.info("You need to do: " + t);
}
}else{
log.info("You have nothing to do chil out!");
}

Answer 1

System.out would print to "standard out" on the web server (usually the console) not to the screen. What you have to do is instead write to the HttpServletResponse
so something like this:
public void doGet(HttpServletRequest req, HttpServletResponse resp) {
try {
resp.getWriter().println("user email is there?: " + tmp.getEmail());
} catch (IOException e) {
// handle your error here
}
}