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Spring系列【2】应用setter注入法实现Bean的注入

package cn.com.xf;public class User {    private String name;    private int age;    private String remark;  //省略属性的getter/setter方法
@Override
public String toString() { return "User [name=" + name + ", age=" + age + ", remark=" + remark + "]"; }}
package cn.com.xf;public class UserUtil {    private User user;    public User getUser() {        return user;    }    public void setUser(User user) {        this.user = user;    }    public boolean isUser() {        if (user != null) {            return true;        } else {            return false;        }    }}
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
<!--注意,以下使用了P标签--> xmlns:p="http://www.springframework.org/schema/p" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <bean id="user" class="cn.com.xf.User" p:name="jikoy" p:age="28" p:remark="this is remark"></bean> <bean id="userUtil" class="cn.com.xf.UserUtil"> <property name="user" ref="user"></property> </bean></beans>

以下是个测试类:全部代码亲测通过。

package cn.com.xf;import org.springframework.context.ConfigurableApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;public class Test {    public static void main(String[] args) {
     //ApplicationContext接口没有提供关闭方法,eclipse会提示,故改为它的子接口 ConfigurableApplicationContext ctx
=new ClassPathXmlApplicationContext("applicationContext.xml"); User user=(User) ctx.getBean("user"); ctx.close(); System.out.println(user); }}

Spring系列【2】应用setter注入法实现Bean的注入