spring中3中为bean注入值的办法总结

有三种办法，分别是：

• Normal way
• Shortcut
• “p” schema

假设我们现在有这么一个bean:

public class FileNameGenerator 
{
	private String name;
	private String type;
 
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getType() {
		return type;
	}
	public void setType(String type) {
		this.type = type;
	}
}

　　

1. Normal way

<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-2.5.xsd">
 
	<bean id="FileNameGenerator" class="com.mkyong.common.FileNameGenerator">
		<property name="name">
			<value>mkyong</value>
		</property>
		<property name="type">
			<value>txt</value>
		</property>
	</bean>
</beans>

　　

2. Shortcut

<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-2.5.xsd">
 
	<bean id="FileNameGenerator" class="com.mkyong.common.FileNameGenerator">
		<property name="name" value="mkyong" />
		<property name="type" value="txt" />
	</bean>
 
</beans>

　　

3. “p” schema

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:p="http://www.springframework.org/schema/p"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
 
	<bean id="FileNameGenerator" class="com.mkyong.common.FileNameGenerator" 
             p:name="mkyong" p:type="txt" />
 
</beans>

　　第三种办法需要加入： xmlns:p=”http://www.springframework.org/schema/p

三种办法都很好，具体选哪个，看个人喜好。