BeanCreationException: while using Autowiring fro DAO controller

[Dushyant Chhetri]

Hi All,

I am learning spring and am trying to create a simple login example where the authentication is done by comparing the username and password from a database.

I have autowired in the controller as follows:

@Controller
@RequestMapping("loginform.html")
public class LoginController {
	@Autowired
	private LoginDao loginDao;

	
	public LoginDao getLoginDao() {
		return loginDao;
	}



	public void setLoginDao(LoginDao loginDao) {
		this.loginDao = loginDao;
	}



	@RequestMapping(method = RequestMethod.POST)
	public String processForm(@Valid Login loginBean, BindingResult result,
			Map model) {
		String userName = "UserName";
		String password = "password";
		boolean status=false;
		if (result.hasErrors()) {
			return "loginform";
		}
		loginBean = (Login) model.get("login");
		try{
			status=loginDao.validateLogin(loginBean);
		}catch(Exception e){
			e.printStackTrace();
		}
		if(status){
			model.put("login", loginBean);
			return "loginsuccess";
		}else
						
		return "loginsuccess";
	}

My dao class is as follows:

package com.dao;

import org.springframework.jdbc.core.simple.SimpleJdbcDaoSupport;

import com.model.Login;

public class LoginDao extends SimpleJdbcDaoSupport{
	
	public boolean validateLogin(Login loginBean){
		if(here is the call to db and returns boolean on success )){
			return true;
		}else
		return false;
		
	}

}

The application context xml is as follows:

<bean id="loginDao" class="com.dao.LoginDao" > <property name="jdbcTemplate" ref="jdbcTemplateBean" > </property> </bean> <bean id="jdbcTemplateBean" class="org.springframework.jdbc.core.JdbcTemplate" > <property name="dataSource" ref="dataSourceBean" > </property> </bean> <bean id="dataSourceBean" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="username" value="root"></property> <property name="url" value="jdbc:mysql://localhost/personsdb"></property> <property name="driverClassName" value="com.mysql.jdbc.Driver"></property> <property name="password" value="root"></property> </bean>

I have also kept

<mvc:annotation-driven /> <context:component-scan base-package="com.controller" /> in the spring-servlet.xml file.

Despite all these I am getting
Exception Error creating bean with name 'loginController'


org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.dao.LoginDao] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}


Please suggest where I am going wrong.

[Dushyant Chhetri]

Found it ,

had'nt put in the listener for contextloader in my web.xml file

<listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener>

https://coderanch.com/t/586046/Spring/NoSuchBeanDefinitionException-spring-mybatis#2667497


Thanks