filehellostr.java

就是为您实现了Spring的依赖注入机制

package com.openv.spring;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;

public class FileHelloStr implements HelloStr {
	protected static final Log log=LogFactory.getLog(FileHelloStr.class);
	private String propfilename;
	
	public FileHelloStr(String propfilename)
	{
		this.propfilename=propfilename;
	}
	public String getContent()
	{
		String helloworld="";
		try{
			Properties properties=new Properties();
			InputStream is=getClass().getClassLoader().getResourceAsStream(propfilename);
			properties.load(is);
			is.close();
			helloworld=properties.getProperty("helloworld");//不明白
		}
		catch(FileNotFoundException ex)
		{
			log.error(ex);
		}
		catch(IOException ex)
		{
			log.error(ex);
		}
		return helloworld;
	}

}