问如何使用Google (Java)在Android/IOS应用程序中使用基本身份验证

EN

@Entity
public class User {

     @Id private String username;
     private String password;
     /*getters setters ommited*/
}

@Api(name = "userapi", version = "v1", description = "userapi")
public class UserService {

     static{
         ObjectifyService.register( User.class );
     }

     @ApiMethod(name = "create")
     public User createUser(@Named("username") String username,     
                                    @Named("password") String password){
         User user = new User();
         user.setUsername(username);
         user.setPassword(password);
         ofy().save().entity(user);  
         return user;
    }

    @ApiMethod(name = "get")
    public User getUser(@Named("username") String username, 
                                  @Named("password") String password){
           User user = ofy().load().key(Key.create(User.class, 
                                                  username)).now(); 
           return user;
    }
}

var login = function() {
    message = {
        "username" : $scope.username,
        "password" : $scope.password

    };
    console.log(message);

    gapi.client.userapi.get(message).execute(function(user) {
        console.log(user);
        if (!user.code && user.password) {
             //successfully logged in
            console.log('successfully  logged in');

        }
    });

};