Spring实例化

对于Spring真的很迷茫，不明白，都说是属性注入，到底怎么注入的啊？？？

  没办法了 ， 还是一点一点学吧！！！！！ 本人纯属娱乐并为自己学过的东西做一下整理，如有错误，还望各位多多包涵，*^_^* 

 

1  在Eclipse中搭建环境

     File-->new--->JavaProject  新建java项目Spring实例化

     右键项目名-->new-->folder 新建bin文件夹    把commons-logging-1.0.4.jar，spring.jar两个包加载到bin下

     右键项目名-->Properties-->Java Build Path-->Libraries-->Add  JARs  加载2个文件 -->ok

2   新建2个文件夹 

        1--存放配置文件        2--存放java类

       1------------------ 

             右键项目名-->new-->SourceFolder 新建是src/java文件夹      注update勾必须打上

        2-------------------

             同上  新建是src/resouce文件夹

3   加配置文件  在src/resouce下

     1—————————applicationContext-web.xml

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN"        "http://www.springframework.org/dtd/spring-beans-2.0.dtd"><beans><bean id="formaterBean" class="com.neusoft.test.spring.impl.UpperFormat"></bean></beans>

 

6  在src/java下新建4个类

         1---Foramt接口      

package com.neusoft.test.spring.format;public interface Foramt{            String format(String text);     }

     2---UpperFormat 类实现接口

package com.neusoft.test.spring.impl;import com.neusoft.test.spring.format.Foramt;public class UpperFormat implements Foramt{    public String format(String text)     {        return text.toUpperCase();    }}

  3---LowerFormat 类实现接口

package com.neusoft.test.spring.impl;import com.neusoft.test.spring.format.Foramt;public class LowerFormat implements Foramt{  public String format(String text) {    return text.toLowerCase();}}

 4---测试类

import org.springframework.beans.factory.xml.XmlBeanFactory;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import org.springframework.context.support.FileSystemXmlApplicationContext;import org.springframework.core.io.ClassPathResource;import com.neusoft.test.spring.format.Foramt;public class Test{    public static void main(String[] args)    {      //第一部分  基础     //第一种实例化  不常用     XmlBeanFactory xmlBeanFactory = new  XmlBeanFactory(new ClassPathResource("applicationContext-web.xml"));     Foramt format1 = (Foramt)xmlBeanFactory.getBean("formaterBean");          String temp1 = format1.format("teAAFAtt");     System.out.println(temp1);          //第二种实例化  多用 实现接口多  new String[]{"applicationContext-web.xml"}或 new String("applicationContext-web.xml)     //new String[]作用：可以多个xml文件     ApplicationContext applicationContext1 = new ClassPathXmlApplicationContext(new String[]{"applicationContext-web.xml"});     Foramt format2 = (Foramt)applicationContext1.getBean("formaterBean");      String temp2 = format2.format("hanCHAOb323");     System.out.println(temp2);          //第三种实例化  FileSystemXmlApplicationContext在文件系统中找路径D:\\eclipse\\basic\\HelloSpring\\src\\resource\\applicationContext-web.xml     ApplicationContext applicationContext2=new FileSystemXmlApplicationContext(new String[]{"D:/eclipse/basic/HelloSpring/src/resource/applicationContext-web.xml"});     Foramt  format3 =(Foramt)applicationContext2.getBean("formaterBean");     String temp3=format3.format("testMecond3");     System.out.println(temp3);

代码结构：

      
运行结果：

   `(*∩_∩*)′  娱乐一下了！！！！

2012-3-22 11:15:46 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions信息: Loading XML bean definitions from class path resource [applicationContext-web.xml]TEAAFATT2012-3-22 11:15:46 org.springframework.context.support.AbstractApplicationContext prepareRefresh信息: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@18e2b22: display name [org.springframework.context.support.ClassPathXmlApplicationContext@18e2b22]; startup date [Thu Mar 22 11:15:46 CST 2012]; root of context hierarchy2012-3-22 11:15:46 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions信息: Loading XML bean definitions from class path resource [applicationContext-web.xml]2012-3-22 11:15:46 org.springframework.context.support.AbstractApplicationContext obtainFreshBeanFactory信息: Bean factory for application context [org.springframework.context.support.ClassPathXmlApplicationContext@18e2b22]: org.springframework.beans.factory.support.DefaultListableBeanFactory@1abab882012-3-22 11:15:46 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons信息: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@1abab88: defining beans [formaterBean]; root of factory hierarchyHANCHAOB3232012-3-22 11:15:46 org.springframework.context.support.AbstractApplicationContext prepareRefresh信息: Refreshing org.springframework.context.support.FileSystemXmlApplicationContext@147c5fc: display name [org.springframework.context.support.FileSystemXmlApplicationContext@147c5fc]; startup date [Thu Mar 22 11:15:46 CST 2012]; root of context hierarchy2012-3-22 11:15:46 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions信息: Loading XML bean definitions from file [D:\eclipse\basic\HelloSpring\src\resource\applicationContext-web.xml]2012-3-22 11:15:46 org.springframework.context.support.AbstractApplicationContext obtainFreshBeanFactory信息: Bean factory for application context [org.springframework.context.support.FileSystemXmlApplicationContext@147c5fc]: org.springframework.beans.factory.support.DefaultListableBeanFactory@1ac1fe42012-3-22 11:15:46 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons信息: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@1ac1fe4: defining beans [formaterBean]; root of factory hierarchyTESTMECOND3