Spring framerwork入门实例（4.2.4）

Spring framerwork入门实例（4.2.4）
1、下载Spring framerwork
下载地址：http://maven.springframework.org/release/org/springframework/spring/
2、解压并在spring-framework-4.2.4.RELEASE\libs 找到如下JAR包：
spring-beans-4.2.4.RELEASE.jar
spring-context-4.2.4.RELEASE.jar
spring-core-4.2.4.RELEASE.jar
spring-expression-4.2.4.RELEASE.jar

commons-logging-1.1.3.jar//此jar文件是apache提供的日志包 http://pan.baidu.com/s/1sk42Dkh

3、创建java项目把以上jar文件复制到项目的src目录下
4、在src目录下创建bean.xml文件(也可以是applicationContext.xml)

<?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-4.2.xsd">

<bean id="user" class="com.entity.User">
<!-- 依赖构造方法注入 -->
<!-- 
<constructor-arg name="id" value="100" />
<constructor-arg name="name" value="张三丰" />
-->
<!-- 依赖setter注入 -->
<property name="id" value="20160126"></property>
<property name="name" value="Xsum"></property>
</bean>
</beans>

 

5、建立com.entity.User.java类

package com.entity;

public class User {
private int id;
private String name;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
//依赖构造方法注入需添加构造方法
/*public User(int id, String name) {
super();
this.id = id;
this.name = name;
}
public User() {
}*/
}

 

6、建立com.test.Test.java类

package com.test;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.entity.User;

public class Demo {
public static void main(String[] args) {
ApplicationContext ctx = new ClassPathXmlApplicationContext("bean.xml");
User user = (User)ctx.getBean("user");
System.out.println("id="+user.getId()+"\t"+"name="+user.getName());
}

}

 

运行结果：
id=100 name=Xsum