Spring学习笔记(二):Spring在STS中的配置和入门例子

1、入门例子的步骤:

       (1)导入jar包:

           下载地址:http://pan.baidu.com/s/1jGKj53K(版本3.0)

        右键项目--build path--add extral archive file--找到下载的那些包,导入Spring下载的包即可,如果没有beans或者core会提示constructor错误;

   

(2)在src中创建一个applicationContext.xml配置文件:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xmlns="http://www.springframework.org/schema/beans"
      xsi:schemaLocation="http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

<bean id="hello" class="hello.Hello">
<property name="hello" value="hha">	</property>
</bean>
</beans>


(3)在src中创建一个hello包,添加三个java,

hello.java

package hello;

public class Hello implements HelloImpl{
	private String hello;
	public void setHello(String hello)
	{
		this.hello=hello;
	}
	public void sayHello()
	{
		System.out.print(hello);
	}
}
helloImpl.java接口类

package hello;

public interface HelloImpl {
	public void sayHello();
}

test.java测试类

package hello;

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


public class test {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		ApplicationContext app=new ClassPathXmlApplicationContext("applicationContext.xml");
		Hello hello=(Hello)app.getBean("hello");
		hello.sayHello();
	}
}
完成:运行即可;


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