用MyEclipse开发Spring入门

 1 新建一个项目

   File----->New ----->Project  在出现的对话框中选择 MyEclipse 下的 Web Project，在Project Name 输入mySpring1，其他的选项默认，再点Finish完成；

2 加入Spring 包

   在myspring1 项目上点右键，选MyEclipse ---> Add Spring Capabities，再点Finish完成；

3 加入Log4j 包

   菜单--->Project -->Properties-----Java Build Path 点Libraries 选项卡，再选Add External Jars 加入log4j 的jar 包 (可从网上下)http://archive.apache.org/dist/logging/log4j/1.2.8/

4 新建Action接口文件

   右键点src ---->New ---->Interface (包名net.xiaxin.spring.qs)

   Action.java代码

package net.xiaxin.spring.qs;

public interface Action {
 public String execute(String str);

}
5 建立Action接口的两个实现UpperAction、LowerAction

LowerAction.java

package net.xiaxin.spring.qs;

public class LowerAction implements Action { 
  
   private String message; 
   public String getMessage() { 
     return message; 
    } 
   
    public void setMessage(String string) { 
      message = string; 
    } 
    
    public String execute(String str) { 
     return (getMessage()+str).toLowerCase(); 
    } 
  }

/////
UpperAction.java

package net.xiaxin.spring.qs;

public class UpperAction implements Action { 
   
   private String message; 
   
   public String getMessage() { 
    return message; 
   } 
  
   public void setMessage(String string) { 
     message = string; 
   } 
  
   public String execute(String str) { 
    return (getMessage() + str).toUpperCase(); 
   } 
 }

6  新建log4j.properties配置文件，内容如下：

log4j.rootLogger=DEBUG, stdout 
 
log4j.appender.stdout=org.apache.log4j.ConsoleAppender 
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout 
log4j.appender.stdout.layout.ConversionPattern=%c{1} - %m%n

7  Spring配置文件（bean.xml）

在myspring 上右击 --->New--->File  文件名 bean.xml

bean.xml 内容如下

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans> 
     <description>Spring Quick Start</description> 
     <bean id="TheAction" 
 class="net.xiaxin.spring.qs.UpperAction">
    <property name="message"> 
<value>HeLLo</value> 
</property> 
  </bean>  
 <bean id="action2" class="net.xiaxin.spring.qs.LowerAction">
<property name="message"> 
<value>HeLLo</value> 
</property> 
  </bean> 
</beans>

8  建立测试文件SimpleTest.java

package test;

import net.xiaxin.spring.qs.Action;

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

public class SimpleTest {
 public static void main(String args[])
 {
  SimpleTest test=new SimpleTest();
  test.testQuickStart();
  
 }
 public void testQuickStart() { 
   
     ApplicationContext ctx=new  FileSystemXmlApplicationContext("bean.xml"); 
     
     Action action = (Action) ctx.getBean("TheAction"); 
     
     System.out.println(action.execute("Rod Johnson"));
     action = (Action) ctx.getBean("action2");
     System.out.println(action.execute("jecKj"));
  
  }

}

9 把SimpleTeat.java 设置成主类就可以运行了，运行结果 (红色部分是想要的结果)

FileSystemXmlApplicationContext - Publishing event in context [org.springframework.context.support.FileSystemXmlApplicationContext;hashCode=12694833]: org.springframework.context.event.ContextRefreshedEvent[source=org.springframework.context.support.FileSystemXmlApplicationContext: display name [org.springframework.context.support.FileSystemXmlApplicationContext;hashCode=12694833]; startup date [Wed May 31 13:30:25 CST 2006]; root of context hierarchy]
 DefaultListableBeanFactory - Returning cached instance of singleton bean 'TheAction'
 HELLOROD JOHNSON
DefaultListableBeanFactory - Returning cached instance of singleton bean 'action2'
 hellojeckj