Spring not allowing me to autowire my class

Question

I have search for a similar question but cant find anything regarding this issue.

This is my Controller class

 @Controller
 @RequestMapping(value = "/admin")
 public class AdminController {


 @Autowired
 private AuthenticationServicesImpls check;

 public AuthenticationServicesImpls getCheck() {
    return check;
 }

public void setCheck(AuthenticationServicesImpls check) {
    this.check = check;
}

@RequestMapping(value = "/login")
public ModelAndView adminLogin(HttpServletResponse response)
        throws IOException {
    return new ModelAndView("adminlogin");

}

@RequestMapping(value = "/authentication")
public ModelAndView validateAdmin(HttpServletResponse response,
        @RequestParam(value = "userid", required = false) String username,
        @RequestParam(value = "password", required = false) String password){
    System.out.print(username); 
    System.out.print(password); 



      if(check.validateAdminUser(username, password)){
            return new ModelAndView("adminlogin");
      } else
      {
            return new ModelAndView("error/errorlogin");
      }



     }

   }

This is my service interface

package online.services;
 import org.springframework.stereotype.Repository;



@Repository
   public interface AuthenticationServices {


public boolean isLoggedIn();
public int login();
public int logout();
public boolean validateUser();

}

This is my DOE class implementation I Have just used on method only for testing

 package online.deo;

   import java.util.List;

   import org.hibernate.Query;
   import org.hibernate.Session;
   import org.hibernate.SessionFactory;
   import org.springframework.beans.factory.annotation.Autowired;
   import org.springframework.stereotype.Component;
   import org.springframework.stereotype.Repository;
   import org.springframework.transaction.annotation.Transactional;

    import online.model.UserDetail;
    import online.services.AuthenticationServices;

    @Transactional
    @Repository
    @Component
    public class AuthenticationServicesImpls implements AuthenticationServices {

       AuthenticationServicesImpls(){}
      @Autowired
      private SessionFactory sessionFactory;




     public boolean validateUser() {

          return false;
     }
     @SuppressWarnings("unchecked")
     @Transactional(readOnly = true)
    public boolean validateAdminUser(String userID, String password) {
        System.out.print("this is session facoty class"+ sessionFactory.toString());
        System.out.print(userID);   
        System.out.print(password);

        Session session = sessionFactory.openSession();
        System.out.println(session);
        Query query = session.createQuery("from user_detail");

        System.out.println(query.list());
        List<UserDetail> user = query.list();

        if (user != null) {
            for (UserDetail us : user) {

                System.out.println(us.getUser_id());

                 if (us.getUser_username().equals(userID)) {
                    if (us.getUser_password().equals(password)) {
                        return true;
                    }
                     return false;
                }
            }

        }
           return false;
         }

         }

This is my POJO Class

package online.model;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.EnumType;
import javax.persistence.Enumerated;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name = "user_detail")
public class UserDetail {
@Id
private int user_id;

@Column(name = "user_first_name")
private String user_first_name;

@Column(name = "user_last_name")
private String user_last_name;

@Column(name = "user_emailid")
private String user_emailid;

@Column(name = "user_mobileno")
private long user_mobileno;

@Column(name = "user_username")
private String user_username;

 @Column(name = "user_password")
private String user_password;

@Enumerated(EnumType.STRING)
private Role user_role;

 public int getUser_id() {
     return user_id;
}

public void setUser_id(int user_id) {
    this.user_id = user_id;
}

public String getUser_first_name() {
    return user_first_name;
}

public void setUser_first_name(String user_first_name) {
    this.user_first_name = user_first_name;
}

public String getUser_last_name() {
    return user_last_name;
}

public void setUser_last_name(String user_last_name) {
    this.user_last_name = user_last_name;
}

public String getUser_emailid() {
    return user_emailid;
}

public void setUser_emailid(String user_emailid) {
    this.user_emailid = user_emailid;
}

public long getUser_mobileno() {
    return user_mobileno;
}

public void setUser_mobileno(long user_mobileno) {
    this.user_mobileno = user_mobileno;
}

public String getUser_username() {
    return user_username;
}

public void setUser_username(String user_username) {
    this.user_username = user_username;
}

public String getUser_password() {
    return user_password;
}

public void setUser_password(String user_password) {
    this.user_password = user_password;
}

public Role getUser_role() {
    return user_role;
}

public void setUser_role(Role user_role) {
    this.user_role = user_role;
}

}

This is my servlet-servlet.xml file

      <?xml version="1.0" encoding="UTF-8"?>
      <beans xmlns="http://www.springframework.org/schema/beans"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xmlns:p="http://www.springframework.org/schema/p"
      xmlns:aop="http://www.springframework.org/schema/aop"
      xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans     

              enter code here`http://www.springframework.org/schema/beans/spring-beans- 3.1.xsd
     http://www.springframework.org/schema/context http://www.springframework.org/schema  /context/spring-context-3.1.xsd
       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
       http://www.springframework.org/schema/mvc http://www.springframework.org/sche/mvc/spring-mvc-3.1.xsd"> 

   <context:component-scan base-package="online" />
   <mvc:resources mapping="/resources/**" location="/resources/" />

   <context:annotation-config />
   <mvc:annotation-driven/> 
   <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
      <property name="prefix" value="/WEB-INF/jsp/" />
      <property name="suffix" value=".jsp" />
   </bean>
     <bean id="propertyConfigurer"
        class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
        p:location="/WEB-INF/jdbc.properties" />

        <bean id="dataSource"
        class="org.springframework.jdbc.datasource.DriverManagerDataSource" 
        p:driverClassName="com.mysql.jdbc.Driver"
        p:url="jdbc:mysql://localhost:3306/Shopping" p:username="root"
        p:password="123456" />

     <bean id="sessionFactory"
        class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="configLocation">
            <value>classpath:hibernate.cfg.xml</value>
        </property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
                <prop key="hibernate.show_sql">true</prop>
            </props>
        </property>
    </bean>

    <tx:annotation-driven transaction-manager="transactionManager"/>

   <bean id="transactionManager"
        class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>

    <bean id="check" class="online.deo.AuthenticationServicesImpls" />
    </beans>

This is my error stack

 by: org.springframework.beans.factory.BeanCreationException: Could not autowire field:    private online.deo.AuthenticationServicesImpls online.controller.AdminController.check; nested exception is java.lang.IllegalArgumentException: Can not set online.deo.AuthenticationServicesImpls field online.controller.AdminController.check to com.sun.proxy.$Proxy17
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:506)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:284)
    ... 35 more
Caused by: java.lang.IllegalArgumentException: Can not set online.deo.AuthenticationServicesImpls field online.controller.AdminController.check to com.sun.proxy.$Proxy17
    at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:164)
    at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:168)
    at sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorImpl.java:81)
    at java.lang.reflect.Field.set(Field.java:741)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:502)
    ... 37 more

Sep 04, 2014 5:43:05 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Allocate exception for servlet SpringDispatcher
java.lang.IllegalArgumentException: Can not set online.deo.AuthenticationServicesImpls field online.controller.AdminController.check to com.sun.proxy.$Proxy17
    at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:164)
    at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:168)
    at sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorImpl.java:81)
    at java.lang.reflect.Field.set(Field.java:741)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:502)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:284)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1106)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:585)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
    at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:631)
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:588)
    at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:645)
    at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:508)
    at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:449)
    at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:133)
    at javax.servlet.GenericServlet.init(GenericServlet.java:158)
    at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1284)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1197)
    at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:864)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:134)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:745)

I am not getting why my application is not getting autowired.

Answer 1

add this line in your xml file and try to run again.

    <jpa:repositories base-package="your.repository.base.package.path"/>

I think this should work.

Answer 2

by default, Spring uses standard java interface-based proxies. Which means your Spring managed beans must implement interfaces Spring is managing.

If you want to proxy based on classes, you can update the following annotation in your Application Config (I believe this also requires the CGLIB jar):

note the 'proxyTargetClass = true':

@EnableAspectJAutoProxy(proxyTargetClass = true)

Answer 3

Change

 @Autowired
 private AuthenticationServicesImpls check;

 public AuthenticationServicesImpls getCheck() {
    return check;
 }

public void setCheck(AuthenticationServicesImpls check) {
    this.check = check;
}

To:

@Autowired
 private AuthenticationServices check;

 public AuthenticationServices getCheck() {
    return check;
 }

public void setCheck(AuthenticationServices check) {
    this.check = check;
}

This should work.