Exception in thread "main" org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'std' defined in file - spring

Question

package com.nareshit.beans;
public class Address {
private String city,state;
public String toString()
{
return "\n city:"+city+"\nstate:"+state;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getState() {
return state;
}
public void setState(String state) {
this.state = state;
}
}
package com.nareshit.clients;
import java.awt.Container;
import java.beans.Beans;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.FileSystemResource;
import org.springframework.core.io.Resource;
import com.nareshit.beans.Student;
public class Test {
public static void main(String[] args)
{
BeanFactory factory=new XmlBeanFactory(new ClassPathResource("MyBeans.xml"));
Student std1=(Student)factory.getBean("std");
std1.getStudentDetails();
}
}
package com.nareshit.beans;
public class Student {
private int sid;
private String name;
private String address;
public void getStudentDetails()
{
System.out.println("student id:"+sid);
System.out.println("student name:"+name);
System.out.println("student address:"+address);
}
public int getSid() {
return sid;
}
public void setSid(int sid) {
this.sid = sid;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
}
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN"
"http://www.springframework.org/dtd/spring-beans-2.0.dtd">
<beans>
<bean id="std" class="com.nareshit.beans.Student">
<property name="std" value="1001"/>
<property name="name" value="mitu"/>
<property name="address" ref="addressObj"/>
</bean>
<bean id="addressObj" class="com.nareshit.beans.Address">
<property name="city" value="bam"/>
<property name="state" value="odisha"/>
</bean>
</beans>
This is the spring setter injection prog. where i am getting error:
Exception in thread "main" org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'std' defined in file("")
how to solve it?

Answer 1

Please see com.nareshit.beans.Student class. It is having one property named as address which is a type of String. When you are writing the XML,
you are giving one reference type of com.nareshit.beans.Address.
Solution :
1. You can give a String value in the XML for address property.like
ddress property like
<bean id="std" class="com.nareshit.beans.Student">
<property name="std" value="1001"/>
<property name="name" value="mitu"/>
<property name="address" value="SOME ADDRESS"/>
</bean>
2. You can change the type of address property in Student Class like
public class Student{
Address address;
//declaration of rest property
//Some Boiler Plate Code
}