Spring4.0MVC学习资料,注解自动扫描bean,自动注入bean(二)

package com.herman.ss.test;

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

import com.herman.ss.action.TestAction;
import com.herman.ss.filter.Filter1;
import com.herman.ss.filter.Filter2;
import com.herman.ss.filter.test.Filter3;
import com.herman.ss.pojo.House;
import com.herman.ss.pojo.Person;
/**
 * @see spring4.0.0最新稳定版新特性,自动扫描bean,自动注入bean
 * @author Herman.Xiong
 * @date 2014年7月18日14:49:42
 */
public class Test1 {
	/**
	 * @see spring4.0自动扫描bean,自动注入bean
	 */
	public static void test0(){
		//1.加载配置文件
		ApplicationContext ctx=new ClassPathXmlApplicationContext("com/herman/ss/config/applicationContext1.xml");
		//2.获取bean实例
		Person person=(Person)ctx.getBean("person");
		House house=(House)ctx.getBean("house");
		//3.打印bean属性
		System.out.println(person);
		System.out.println(house);
	}
	
	/**
	 * @see spring4.0简单业务逻辑的注解
	 */
	public static void test1(){
		//1.加载配置文件
		ApplicationContext ctx=new ClassPathXmlApplicationContext("com/herman/ss/config/applicationContext1.xml");
		//2.获取bean实例 获取bean
		TestAction testAction=(TestAction)ctx.getBean("testAction");
		//3.打印bean属性
		System.out.println(testAction);
		//4.调用bean对象的方法
		testAction.testAction();
		
		//@Service 用于标注业务层组件；
		//@Repository 用于标注数据访问层组件；
		//@Controller 用于标注控制层组件(如：Struts中的action)
		//@Component 表示泛型组件，当组件不好归类的时候，我们可以使用这个组件进行注解。
	}
	
	/**
	 * @see spring4.0简单注解的排除过滤器配置
	 */
	public static void test2(){
		//1.加载配置文件
		ApplicationContext ctx=new ClassPathXmlApplicationContext("com/herman/ss/config/applicationContext1.xml");
		//2.获取bean实例,只能根据bean的id获取bean
		Filter1 filter1=(Filter1)ctx.getBean("filter1");
		Filter2 filter2=(Filter2)ctx.getBean("filter2");
		//3.打印bean属性
		System.out.println(filter1);
		System.out.println(filter2);
		/**
		 * 运行会报错：Exception in thread "main" org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'filter2' is defined
		 * 原因是：filter2被我们排除在外了，不会自动注入
		 * 因此会抛异常
		 */
	}
	/**
	 * @see spring4.0简单注解的包含过滤器配置
	 */
	public static void test3(){
		//1.加载配置文件
		ApplicationContext ctx=new ClassPathXmlApplicationContext("com/herman/ss/config/applicationContext1.xml");
		//2.获取bean实例	
		Filter3 filter3=(Filter3)ctx.getBean("filter3");
		Filter2 filter2=(Filter2)ctx.getBean("filter2");
		Filter1 filter1=(Filter1)ctx.getBean("filter1");
		//3.打印bean属性
		System.out.println(filter3);
		System.out.println(filter2);
		System.out.println(filter1);
		/**
		 * 运行会报错：Exception in thread "main" org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'filter2' is defined
		 * 原因：filter2 被我们排除在外了
		 * 因此：我们回去filter2  这个bean对象的时候就会报错。
		 * filter1  为什么不报错呢，因为我们设置了 com.herman.ss.filter包下面的use-default-filters="true"  自动导入
		 * 因此：filter1 不会报错
		 */
	}
	
	public static void main(String[] args) {
		/**
		 * 注解需要的jar包列举：
		 * spring-aop-4.0.6.RELEASE.jar
		 * spring-beans-4.0.6.RELEASE.jar
		 * spring-context-4.0.6.RELEASE.jar
		 * spring-core-4.0.6.RELEASE.jar
		 * spring-expression-4.0.6.RELEASE.jar
		 * commons-lang-2.4.jar
		 */
		//test0();
		//test1();
		//test2();
		test3();
	}
}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"  
    xmlns:mvc="http://www.springframework.org/schema/mvc"  
    xmlns:context="http://www.springframework.org/schema/context"  
    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-4.0.xsd  
	http://www.springframework.org/schema/mvc  
	http://www.springframework.org/schema/mvc/spring-mvc.xsd  
	http://www.springframework.org/schema/context  
	http://www.springframework.org/schema/context/spring-context-4.0.xsd">
         
    <!-- 打开Spring组件自动扫面，并配置要扫描的基本包 -->  
    <context:component-scan base-package="com.herman.ss.pojo"></context:component-scan>
    <context:component-scan base-package="com.herman.ss.action"></context:component-scan>
    <context:component-scan base-package="com.herman.ss.biz"></context:component-scan>
    <context:component-scan base-package="com.herman.ss.dao"></context:component-scan>
    <context:component-scan base-package="com.herman.ss.filter" use-default-filters="false">
    	<!-- 取消自动注入，配置只注入com.herman.ss.filter.test下面的所有类 -->
    	<context:include-filter type="regex" expression="com.herman.ss.filter.test.*"/>
    </context:component-scan>
     <context:component-scan base-package="com.herman.ss.filter" use-default-filters="true">
    	<!-- 自动注入，但是Filter2除外 -->
    	<context:exclude-filter type="regex" expression="com.herman.ss.filter.Filter2" /> 
    </context:component-scan>
	<!-- 
		注：<context:component-scan>节点用于通知Spring容器扫描组件，base-package属性用于指定将要被扫描的组件所在的包名
		这里将自动的配置扫描com.herman.ss.pojo下面的bean
	 -->
</beans>

package com.herman.ss.pojo;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
/**
 * @see 实体类使用Component注解
 * @author Herman.Xiong
 * @date 2014年7月24日17:11:59
 */
@Component("person")
public class Person {
	private String name;
	private int age;
	//这里设置自动注入
	@Autowired
	private House house;
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	public House getHouse() {
		return house;
	}
	public void setHouse(House house) {
		this.house = house;
	}
	public Person() {
		super();
	}
	public Person(String name, int age) {
		super();
		this.name = name;
		this.age = age;
	}
	public Person(String name, int age, House house) {
		super();
		this.name = name;
		this.age = age;
		this.house = house;
	}
	@Override
	public String toString() {
		return "Person [age=" + age + ", house=" + house + ", name=" + name
				+ "]";
	}
	
}

package com.herman.ss.pojo;

import org.springframework.stereotype.Component;

@Component("house")
public class House {
	private String name;
	private String address;
	private float price;
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getAddress() {
		return address;
	}
	public void setAddress(String address) {
		this.address = address;
	}
	public float getPrice() {
		return price;
	}
	public void setPrice(float price) {
		this.price = price;
	}
	public House() {
		super();
	}
	public House(String name, String address, float price) {
		super();
		this.name = name;
		this.address = address;
		this.price = price;
	}
	public String toString() {
		return "House [address=" + address + ", name=" + name + ", price="
				+ price + "]";
	}
	
}

package com.herman.ss.action;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;

import com.herman.ss.biz.TestBiz;

/**
 * @see 模拟action
 * @author Herman.Xiong
 * @date 2014年7月24日17:17:16
 * @since jdk 1.6,tomcat 6.0
 */
@Controller("testAction")
public class TestAction {
	
	//使用自动载入
	@Autowired
	private TestBiz testBiz;
	//必须提供set方法
	public void setTestBiz(TestBiz testBiz) {
		this.testBiz = testBiz;
	}

	public TestAction(){
		System.out.println("模拟的action类");
	}
	
	public void testAction(){
		testBiz.testBiz();
	}
}

package com.herman.ss.biz;

/**
 * @see 模拟biz层进行注解
 * @author Herman.Xiong
 * @date 2014年7月24日17:20:25
 */
public interface TestBiz {
	void testBiz();
}

package com.herman.ss.biz.impl;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.herman.ss.biz.TestBiz;
import com.herman.ss.dao.TestDao;
@Service("testBiz")
public class TestBizImpl implements TestBiz{
	@Autowired
	private TestDao testDao;
	
	//必须提供set方法
	public void setTestDao(TestDao testDao) {
		this.testDao = testDao;
	}

	public void testBiz() {
		System.out.println("模拟biz层");
		testDao.testDao();
	}

}

package com.herman.ss.dao;

/**
 * @see 模拟dao层进行注解
 * @author Herman.Xiong
 * @date 2014年7月24日17:20:25
 */
public interface TestDao {
	void testDao();
}

package com.herman.ss.dao.impl;

import org.springframework.stereotype.Repository;

import com.herman.ss.dao.TestDao;
@Repository("testDao")
public class TestDaoImpl implements TestDao{

	public void testDao() {
		System.out.println("模拟dao层");
	}

}

package com.herman.ss.filter;

import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;
//Scope注解设置作用域
@Controller("filter1")@Scope("prototype")
public class Filter1 {
	public Filter1(){
		System.out.println("我是Filter1 ...");
		System.out.println("Scope注解设置作用域");
	}
}

package com.herman.ss.filter.test;

import org.springframework.stereotype.Controller;

@Controller("filter3")
public class Filter3 {
	public Filter3(){
		System.out.println("我是filter3");
	}
}

package com.herman.ss.filter;

import org.springframework.stereotype.Controller;

@Controller("filter2")
public class Filter2 {
	public Filter2(){
		System.out.println("我是Filter2 ...");
	}
}