Spring security in spring boot application - spring

Question

I am trying to implement security to my spring boot application and have followed this http://justinrodenbostel.com/2014/05/30/part-5-integrating-spring-security-with-spring-boot-web/ . after implementing this i am getting an error as following :
Expression parsing failed;
nested exception is org.springframework.beans.factory.BeanCreationException:
Error creating bean with name 'securityConfiguration': Injection of autowired dependencies failed;
nested exception is org.springframework.beans.factory.BeanCreationException:
Could not autowire method: public void
org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter.setContent
NegotationStrategy(org.springframework.web.accept.ContentNegotiationStrategy);
This is my Application.class
public class Application extends WebMvcConfigurerAdapter{
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
#Value("${spring.datasource.driverClassName}")
private String databaseDriverClassName;
#Value("${spring.datasource.url}")
private String datasourceUrl;
#Value("${spring.datasource.username}")
private String databaseUsername;
#Value("${spring.datasource.password}")
private String databasePassword;
#Bean
public DataSource datasource() {
org.apache.tomcat.jdbc.pool.DataSource ds = new org.apache.tomcat.jdbc.pool.DataSource();
ds.setDriverClassName(databaseDriverClassName);
ds.setUrl(datasourceUrl);
ds.setUsername(databaseUsername);
ds.setPassword(databasePassword);
return ds;
}
#Override
public void addViewControllers(ViewControllerRegistry registry) {
registry.addViewController("/login").setViewName("login");
}
#Bean
public LocaleResolver localeResolver()
{
SessionLocaleResolver slr = new SessionLocaleResolver();
slr.setDefaultLocale(Locale.US);
return slr;
}
public LocaleChangeInterceptor localeChangeInterceptor()
{
LocaleChangeInterceptor lci = new LocaleChangeInterceptor();
lci.setParamName("lang");
return lci;
}
#Override
public void addInterceptors(InterceptorRegistry registry) {
// TODO Auto-generated method stub
registry.addInterceptor(localeChangeInterceptor());
}
I have two model classes named Gizmo.java and GizmoChild.java
This is my Controller class
#Controller
public class SampleController {
#RequestMapping("/")
public String index(Model model) {
Gizmo gizmo = new Gizmo();
gizmo.getChildren().add(new GizmoChild());
model.addAttribute("gizmo", gizmo);
return "hello";
}
#RequestMapping("/save")
public String save(Gizmo gizmo) {
System.out.println(gizmo.getField1());
System.out.println(gizmo.getField2());
for(GizmoChild child : gizmo.getChildren()) {
System.out.println(child.getChildField1());
System.out.println(child.getChildField2());
}
return "redirect:/";
}
}
This is my SecurityConfiguration.java
#Configuration
#EnableWebMvcSecurity
#EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {
#Autowired
private DataSource datasource;
#Override
protected void configure(HttpSecurity http) throws Exception {
http
.authorizeRequests().anyRequest().authenticated();
http
.formLogin().failureUrl("/login?error")
.defaultSuccessUrl("/")
.loginPage("/login")
.permitAll()
.and()
.logout().logoutRequestMatcher(new AntPathRequestMatcher("/logout")).logoutSuccessUrl("/login")
.permitAll();
}
#Override
protected void configure(AuthenticationManagerBuilder auth)
throws Exception {
JdbcUserDetailsManager userDetailsService = new JdbcUserDetailsManager();
userDetailsService.setDataSource(datasource);
PasswordEncoder encoder = new BCryptPasswordEncoder();
auth.userDetailsService(userDetailsService).passwordEncoder(encoder);
auth.jdbcAuthentication().dataSource(datasource);
auth.userDetailsService(userDetailsService);
if(!userDetailsService.userExists("user")) {
List<GrantedAuthority> authorities = new ArrayList<GrantedAuthority>();
authorities.add(new SimpleGrantedAuthority("USER"));
User userDetails = new User("user", encoder.encode("password"), authorities);
userDetailsService.createUser(userDetails);
}
}
}
I am not getting any compilation errors but while running error is coming.
Please help me to resolve this issue .This is the only place i am stuck , if there are any documentation regarding spring boot security please tell me.