I am creating a web portal using Angular on the front end and Java Servlets in the back end. The page starts with a login page, It takes the input and sends it to the servlet. The server validates and responds with a JSON object which has the username and his permissions. I set the values to a Service which is injected into the Controller. Then I use $windows.location to change the web page to the home page which is the dashboard. Now I want to use this Service in the controller of the homepage. But I am not able to maintain the $scope due to the page change.
So I thought of redirecting to the home page in the backend using response.redirect() . But I don't know how to get the user details in the homepage after redirection. Like how do I pass the User object to the Home.java servlet
This is my LoginCtrl.js
if (isValid) {
$http({
method : 'POST',
url : 'login',
data : JSON.stringify($scope.user),
headers : {
'Content-Type' : 'application/json'
}
}).success(function(data) {
if (!("failure" == data)) {
console.log(data);
var user = {};
user.name = data.name;
user.permissions = data.permissions;
MyService.setUser(user); // set the values for user
$window.location.href = 'main.jsp';
} else {
$scope.information = "Invalid username/password!"
}
}).error(function(data) {
console.log(data);
});
This is my Login.java servlet
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
Gson gson = new Gson();
JsonParser parser = new JsonParser();
JsonObject obj = (JsonObject) parser.parse(request.getReader());
String username = "";
String password = "";
if (obj.get("name") != null & obj.get("password") != null) {
username = obj.get("name").getAsString();
password = obj.get("password").getAsString();
}
System.out.println("Username :" + username);
System.out.println("Password :" + password);
// Passing username and password to Context and validate.
// If authentication successful, set user object with details and return
// it
// User user = (User) Context.Authorized(username,password)
// for testing
User user = new User();
user.setName(username);
user.setPermission("crwd");
user.setAuthorized(true);
response.setContentType("text/html");
if (user.getAthorized()) {
String responseJSON = gson.toJson(user);
response.getWriter().write(responseJSON);
} else {
response.getWriter().write("failure");
}
}
Please tell me if my requirement can be achieved in Angular or if it can be done using Java, then how ?
