CODEWITHSUNDEEP
javaspring
Dead End
Dead End

Reputation: 587

Exception no such bean definition

Exception in thread "main" org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'testDao' is defined
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:527)
at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:1083)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:274)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1079)
at com.test.main.java.TestMain.main(TestMain.java:30)

this is my main class which is calling bean testDao .

public class TestMain {

    /**
     * @param args
     * @throws SQLException
     * @throws ClassNotFoundException
     */
    public static void main(String[] args) throws SQLException,
            ClassNotFoundException, FileNotFoundException, NullPointerException {

        ApplicationContext ctx = new ClassPathXmlApplicationContext(
                "springNew.xml");
        TestDao dao = ctx.getBean("testDao", TestDao.class);

        Test test = dao.getTest(1);
        System.out.println(test.getName());
    }
}

"THIS is >>>testDao file"

package com.test.dao.java;

import java.io.FileNotFoundException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

import org.springframework.stereotype.Component;
import org.springframework.stereotype.Repository;

import com.test.java.Test;

@Component
public class TestDao {
    static PreparedStatement ps;
    ResultSet rs;
    Connection conn = null;

    private Connection getConnection() throws SQLException,
            ClassNotFoundException, FileNotFoundException, NullPointerException {

        if (conn == null) {
            try {
                Class.forName("org.postgresql.Driver");
                conn = DriverManager.getConnection(
                        "jdbc:postgresql://localhost:5432/testdb", "postgres",
                        "postgres");
                conn.close();
            } catch (Exception e) {
                e.printStackTrace();

            }
        }
        return conn;

    }

    /**
     * @param testId
     * @return
     * @throws SQLException
     * @throws ClassNotFoundException
     * @throws NullPointerException
     * @throws FileNotFoundException
     */
    public Test getTest(int testId) throws SQLException,
            ClassNotFoundException, FileNotFoundException, NullPointerException {

        conn = getConnection();
        try {

            conn = getConnection();
            ps = conn
                    .prepareStatement("SELECT * FROM testdb.testtab where id =?");
            ps.setInt(1, testId);
            Test test = null;
            rs = ps.executeQuery();
            if (rs.next()) {
                test = new Test(testId, rs.getString("name"));
            }

            return test;
        } finally {
            rs.close();
            ps.close();
            conn.close();
        }
    }
}

AND this is >>>>springNew.xml

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

       <!-- <context-annotation-config/> -->
       <context:component-scan base-package="com.test.main"/>
</beans>

Upvotes: 1

Views: 22861

Answers (5)

viper
viper

Reputation: 1906

This is a very simple and a frequently occurring error while using spring. The problem is that your IDE is not finding a proper class to create bean object for a service, repository or an entity while building the project. Make sure that you have defined the proper bean name for the classes. If the error still occurs, try refreshing your application by selecting the project and clicking 'F5' button or by closing and opening the project. You can do Maven Update in eclipse. By right clicking on the project > Maven > Update Project.

Regards

Upvotes: 0

Mohammad Faisal
Mohammad Faisal

Reputation: 5959

Add this to your spring xml

<bean name="testDao" class="com.test.dao.java.TestDao" />

Upvotes: 2

Anant Laxmikant Bobde
Anant Laxmikant Bobde

Reputation: 564

on top of 

<context:component-scan base-package="com.test.main"/> to  <context:component-scan base-package="com.test"/>

following

  @Repository
    public class TestDao{
     * @param testId
     * @return
     * @throws SQLException
     * @throws ClassNotFoundException
     * @throws NullPointerException 
     * @throws FileNotFoundException 
     */
    public Test getTest(int testId) throws SQLException, 
     ClassNotFoundException,FileNotFoundException,NullPointerException  {

            conn = getConnection();
        try {

            conn = getConnection();
            ps =conn.prepareStatement("SELECT * FROM testdb.testtab where id 
              =?");
            ps.setInt(1, testId);
            Test test =null;
            rs = ps.executeQuery();
            if(rs.next())
            {
                test = new Test(testId, rs.getString("name"));
            }

    return test;
        }
        finally
        {
            rs.close();
            ps.close();
            conn.close();
        }


       }
        }

Should solve your issue

Cheers Anant

Upvotes: 0

aios
aios

Reputation: 241

change <context:component-scan base-package="com.test.main"/> to <context:component-scan base-package="com.test"/>

Upvotes: 1

Jens
Jens

Reputation: 69440

You scan the package "com.test.main" for beans. You bean is in package com.test.dao.java

Change:

<context:component-scan base-package="com.test.main"/>

to

<context:component-scan base-package="com.test.dao"/>

Upvotes: 3

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