Spring 3 - In CustomUserDetailsService class, i am getting resource null - spring

Question

Hi i am adding spring security to my application (spring with angular). But i am getting my service resource as null. Following is my code.
here is my security.xml contents
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/schema/security"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:beans="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/security
http://www.springframework.org/schema/security/spring-security-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.2.xsd">
<http auto-config="true" use-expressions="true" entry-point-ref="loginUrlAuthenticationEntryPoint">
<intercept-url pattern="/" access="permitAll" />
<intercept-url pattern="/home" access="isAuthenticated()" />
<form-login />
</http>
<beans:bean id="loginUrlAuthenticationEntryPoint"
class="org.springframework.security.web.authentication.LoginUrlAuthenticationEntryPoint">
<beans:property name="loginFormUrl" value="/" />
</beans:bean>
<beans:bean id="securityFilter"
class="org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter">
<beans:property name="authenticationManager" ref="authenticationManager" />
<beans:property name="authenticationSuccessHandler"
ref="authenticationSuccessHandler" />
</beans:bean>
<beans:bean id="customUserDetailsService" class="com.dashboard.service.CustomUserDetailsService"/>
<authentication-manager alias="authenticationManager">
<authentication-provider user-service-ref="customUserDetailsService"/>
</authentication-manager>
<beans:bean id="authenticationSuccessHandler"
class="org.springframework.security.web.authentication.SavedRequestAwareAuthenticationSuccessHandler">
<beans:property name="defaultTargetUrl" value="/home" />
</beans:bean>
</beans:beans>
and my custom user details service class is
#Service
public class CustomUserDetailsService implements UserDetailsService {
#Resource
UserRepository userRepository;
#Resource
UserService userService;
#Override
public UserDetails loadUserByUsername(String email)
throws UsernameNotFoundException {
try{
User user = userService.getUser(email);
}catch(Exception e){
e.printStackTrace();
}
return null;
}
and my angular controller is
DashBoard.controller('LoginController', function($scope,$http,$location) {
$scope.login = function(){
var data = "j_username="+$scope.username+"&j_password="+$scope.password+"&_spring_security_remember_me=true";
$http.post('j_spring_security_check', data, {
headers: {
'Content-Type': 'application/x-www-form-urlencoded',
}
}).success(function(data,status) {
$location.path('/home');
}).
error(function(data,status) {
console.debug("failed :"+status+" Data : "+data);
$location.path('/login');
});
};
});
and login form is
<form class="form-horizontal" name="signUpForm" ng-controller="LoginController" ng-submit="login()">
<input class="span12 tenF" ng-model="username" type="email" id="j_username" name="j_username" placeholder="E-mail address" required>
<input class="span12 tenF" type="password" ng-model="password" id="j_password" name="j_password" placeholder="Password" required>
<input class="span3 btn btn-large btn-block btn-success" type="submit" value="Login" style="float:right;font-size:20px;margin-top:10px;">
</ng-form>
while debugging i reaches to
User user = userService.getUser(email);//.findByEmail(email);
but userService is null. Can any one kindly help me figure out why it is null.

Answer 1

The problem is the mixing of xml configuration and annotation based autowiring.
In such an situation, I usual add an constructor that take all the required parameter and add in the xml autowire="constructor"
public class CustomUserDetailsService implements UserDetailsService {
private UserRepository userRepository;
private UserService userService;
#Autowire
public CustomUserDetailsService(UserRepository userRepository,
UserService userService){
this.userRepository=userRepository;
this.userService=userService;
}
....
}
<beans:bean id="customUserDetailsService"
class="com.dashboard.service.CustomUserDetailsService"
autowire="constructor"/>