Spring-Ioc

1.导入maven坐标

	
	
	    org.springframework
	    spring-context
	    5.3.10
	

    
	
	    org.springframework
	    spring-beans
	    5.3.10
	

2.配置xml配置文件

3.引入beans和context命名空间

xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
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

4.依赖注入的4种方式

set方法注入

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

构造方法注入

public User(Wechat wechat){
		this.wechat = wechat;
	}

静态工厂方法注入

package org.test.ioc.factory;

import org.test.ioc.model.Car;

public class CarFactory {
	public static Car getCarInstance(){
		return new Car("奔驰");
	}
}

实例化工厂方法注入

	
	

package org.test.ioc.factory;

import org.test.ioc.model.Room;

public class RoomFactory {
	private String roomSize;
	private String roomAddr;
	
	public Room getRoomInstance(){
		return new Room(roomSize,roomAddr);
	}



	public String getRoomSize() {
		return roomSize;
	}



	public void setRoomSize(String roomSize) {
		this.roomSize = roomSize;
	}



	public String getRoomAddr() {
		return roomAddr;
	}



	public void setRoomAddr(String roomAddr) {
		this.roomAddr = roomAddr;
	}
}

5.c命名空间和p命名空间注入属性

xmlns:p="http://www.springframework.org/schema/p"
xmlns:c="http://www.springframework.org/schema/c"

6.引入配置文件
属性引入后可采用${}el表达式引入属性值

7.设置bean属性类型
string，数组，list，set，map

1、引入xml配置
扫描资源中用到的注解

2、spring原始注解

3、spring新注解