FactoryBean是srping的一个接口，现在我们来创建一个类MyFactoryBean
来实现FactoryBean接口
package org.springframework.beans.factory;
public interface FactoryBean<T> {
T getObject() throws Exception;
Class<?> getObjectType();
boolean isSingleton();
}创建Person类
package com.springbean;
public class Person {
private String name;
private Integer age ;
public Person(String name) {
this.name = name;
}
public Person(String name, Integer age) {
this.name = name;
this.age = age;
}
public void setName(String name) {
this.name = name;
}
public void setAge(Integer age) {
this.age = age;
}
public String getName() {
return name;
}
public Integer getAge() {
return age;
}
@Override
public String toString() {
return "Person{" +
"name='" + name + '\'' +
", age=" + age +
'}';
}
}MyFactoryBean实现接口FactoryBean，重写三个方法
import org.springframework.beans.factory.FactoryBean;
public class MybeanFactory implements FactoryBean<Person> {
@Override
public Person getObject() throws Exception {
return new Person("啦啦啦",22);
}
@Override
public Class<?> getObjectType() {
return null;
}
@Override
public boolean isSingleton() {
return true;
}
}创建配置类MainConfig
@Configuration
public class MainConfig { @Bean
public MybeanFactory mybeanFactory(){
return new MybeanFactory();
} }
测试：
public class DemoTest {
ApplicationContext applicationContext = new AnnotationConfigApplicationContext(MainConfig.class);
@Test
public void test(){
Object bean = applicationContext.getBean("mybeanFactory");
System.out.println(bean.getClass());
}
}打印可以得到person类的全类名
打完收工。