var cs = angular.module('csw', []);
cs.controller('login',['$scope', function($rootScope, $scope, $http) {
$scope.showLogin=true;
$http.post('http://localhost:8080/csw/rest/cs/admin/login?userName=' + $scope.UserName + '&password=' + $scope.Password)
}]);

<!-- login -->
    <div ng-controller="login" ng-show="showLogin"
        style="border: 2px solid black">

        <p>
            UserName: <input type="text" ng-model="UserName" value="admin">
            Password: <input type="text" ng-model="Password"  value="1234">
        </p>
        <hr />
    </div>