用静态工厂的方法实例化bean

//代码如下：

package com.timo.domain;

public class ClientService {
    //use static factory method create bean
    private String name;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public static ClientService getClientService() {
        return clientService;
    }

    public static void setClientService(ClientService clientService) {
        ClientService.clientService = clientService;
    }

    private static ClientService  clientService=new ClientService();
    private static People people=new People();
    private ClientService(){}
    public static ClientService createInstance(){
        clientService.setName("杨贵妃");
        return  clientService;
    }
    public static People createPeopleInstance(){
        return  people;
    }
}

配置文件

applicationContext-static-factory.xml

的代码如下：

<?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">
    <bean id="clientService" class="com.timo.domain.ClientService" factory-method="createInstance"/>
</beans>

测试类的代码如下：

package com.timo.test;

import com.timo.domain.ClientService;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test4 {
    public static void main(String[] args) {
        ClassPathXmlApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext-static-factory.xml");
        ClientService clientService = applicationContext.getBean(ClientService.class);
        System.out.println("name="+clientService.getName());
    }
}

来源：https://www.cnblogs.com/1540340840qls/p/7885114.html

标签

bean

实例化

静态方法

string