spring hello world

在目录F:\spring下进行操作
1：拷贝jar包
    spring.jar
    log4j-1.2.9.jar
    commons-logging.jar
   
2：拷贝dtd文件
    spring-beans.dtd

3：设置环境变量
    set CLASSPATH=.;F:\spring\spring.jar;F:\spring\log4j-1.2.9.jar;F:\spring\commons-logging.jar;%CLASSPATH%

4：编写log4j配置文件
    log4j.properties
   
5：编写java代码
    Hello.java
    HelloEnglish.java
    HelloChinese.java
    Main.java

 

6：编译
    javac Hello.java
    javac HelloEnglish.java
    javac HelloChinese.java
    javac Main.java

 

7：编写spring配置文件beans.xml

 

8：执行
    java Main

修改beans.xml中的 HelloEnglish 为 HelloChinese输出的hello!变为你好！

log4j.properties

---

# For JBoss: Avoid to setup Log4J outside $JBOSS_HOME/server/default/deploy/log4j.xml!
# For all other servers: Comment out the Log4J listener in web.xml to activate Log4J.
log4j.rootLogger=INFO, stdout, logfile

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - %m%n

log4j.appender.logfile=org.apache.log4j.RollingFileAppender
log4j.appender.logfile.File=testspring.log
log4j.appender.logfile.MaxFileSize=512KB
# Keep three backup files.
log4j.appender.logfile.MaxBackupIndex=3
# Pattern to output: date priority [category] - message
log4j.appender.logfile.layout=org.apache.log4j.PatternLayout
log4j.appender.logfile.layout.ConversionPattern=%d %p [%c] - %m%n

Hello.java

---

public interface Hello
{
    public void hello();
}

HelloEnglish.java

---

public class HelloEnglish implements Hello
{
    public void hello()
    {
        System.out.println("hello!");
    }
}

HelloChinese.java

---

public class HelloChinese implements Hello
{
    public void hello()
    {
        System.out.println("你好！");
    }
}

Main.java

---

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

public class Main
{
    public static void main(String args[])
    {
        ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml");
        Hello hl = (Hello)ctx.getBean("hello");
        hl.hello();
        return ;
    }
}

 

beans.xml

---